BUG: Bad page state in process syz.0.17 pfn:781db
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880781db070 pfn:0x781db
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff8880781db070 3fffffffffffffff 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826352464, free_ts 122568710747
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmems net/core/page_pool.c:670 [inline]
page_pool_alloc_frag_netmem+0x421/0x9b0 net/core/page_pool.c:1079
page_pool_alloc_netmem include/net/page_pool/helpers.h:131 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xcb7/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:7db1e
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db1e770 pfn:0x7db1e
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff88807db1e770 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826342554, free_ts 122568721294
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:7da59
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807da59f60 pfn:0x7da59
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff88807da59f60 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826333157, free_ts 122568760587
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:7dacf
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807dacf0c0 pfn:0x7dacf
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff88807dacf0c0 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826323588, free_ts 122568771300
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:62155
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888062155fc0 pfn:0x62155
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff888062155fc0 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826314179, free_ts 122569374954
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:7db27
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db27ec0 pfn:0x7db27
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff88807db27ec0 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826304907, free_ts 122569414166
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:7db2d
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db2ddc0 pfn:0x7db2d
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff88807db2ddc0 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826295497, free_ts 122569506525
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:7db2b
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db2bcc0 pfn:0x7db2b
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff88807db2bcc0 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826285917, free_ts 122569547224
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:7db3e
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db3ebc0 pfn:0x7db3e
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff88807db3ebc0 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826276453, free_ts 122569577710
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:7a09f
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807a09f500 pfn:0x7a09f
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff88807a09f500 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826267152, free_ts 122569633604
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:62167
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888062167070 pfn:0x62167
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff888062167070 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826257954, free_ts 122569813890
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0
BUG: Bad page state in process syz.0.17 pfn:7db1a
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807db1acb0 pfn:0x7db1a
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801af92000 0000000000000000
raw: ffff88807db1acb0 0000000000000001 00000000ffffffff 0000000000000000
page dumped because: page_pool leak
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2820(GFP_ATOMIC|__GFP_NOWARN), pid 5866, tgid 5866 (syz.0.17), ts 122826248663, free_ts 122569823508
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x22d/0x280 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x2593/0x2610 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5221
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5255
alloc_pages_bulk_noprof+0x5ff/0x7c0 mm/page_alloc.c:5175
alloc_pages_bulk_node_noprof include/linux/gfp.h:259 [inline]
__page_pool_alloc_netmems_slow+0x14c/0x710 net/core/page_pool.c:619
page_pool_alloc_netmem include/net/page_pool/helpers.h:128 [inline]
page_pool_alloc include/net/page_pool/helpers.h:167 [inline]
page_pool_dev_alloc include/net/page_pool/helpers.h:188 [inline]
skb_pp_cow_data+0xc91/0x19b0 net/core/skbuff.c:982
netif_skb_check_for_xdp net/core/dev.c:5558 [inline]
netif_receive_generic_xdp net/core/dev.c:5599 [inline]
do_xdp_generic+0x76b/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
__kmalloc_cache_noprof+0x2ba/0x660 mm/slub.c:5415
kmalloc_noprof include/linux/slab.h:950 [inline]
netdevice_queue_work drivers/infiniband/core/roce_gid_mgmt.c:663 [inline]
netdevice_event+0x3cb/0x8f0 drivers/infiniband/core/roce_gid_mgmt.c:822
notifier_call_chain+0x1ad/0x3d0 kernel/notifier.c:85
call_netdevice_notifiers_extack net/core/dev.c:2287 [inline]
call_netdevice_notifiers net/core/dev.c:2301 [inline]
netif_set_mac_address+0x39f/0x4e0 net/core/dev.c:9992
do_setlink+0x9bb/0x45a0 net/core/rtnetlink.c:3159
rtnl_changelink net/core/rtnetlink.c:3841 [inline]
__rtnl_newlink net/core/rtnetlink.c:4014 [inline]
rtnl_newlink+0x15ad/0x1bb0 net/core/rtnetlink.c:4151
rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:7062
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2556
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
sock_sendmsg_nosec net/socket.c:787 [inline]
__sock_sendmsg net/socket.c:802 [inline]
__sys_sendto+0x672/0x710 net/socket.c:2265
Modules linked in:
CPU: 1 UID: 0 PID: 5866 Comm: syz.0.17 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:632
free_page_is_bad mm/page_alloc.c:1076 [inline]
__free_pages_prepare mm/page_alloc.c:1388 [inline]
__free_frozen_pages+0xcd9/0xd30 mm/page_alloc.c:2938
bpf_xdp_shrink_data net/core/filter.c:4220 [inline]
bpf_xdp_frags_shrink_tail+0x4da/0x7d0 net/core/filter.c:4244
____bpf_xdp_adjust_tail net/core/filter.c:4266 [inline]
bpf_xdp_adjust_tail+0x1d6/0x220 net/core/filter.c:4259
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:722 [inline]
bpf_prog_run_xdp include/net/xdp.h:696 [inline]
bpf_prog_run_generic_xdp+0x603/0x1490 net/core/dev.c:5489
netif_receive_generic_xdp net/core/dev.c:5605 [inline]
do_xdp_generic+0xac5/0x12e0 net/core/dev.c:5667
tun_get_user+0x24ca/0x43e0 drivers/net/tun.c:1905
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2032
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x61d/0xb90 fs/read_write.c:688
ksys_write+0x150/0x270 fs/read_write.c:740
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e39d5d68e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007ffee04471c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000555576c62500 RCX: 00007f8e39d5d68e
RDX: 000000000000fdef RSI: 0000200000000000 RDI: 00000000000000c8
RBP: 00007f8e39e32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e3a015fac R14: 00007f8e3a015fa0 R15: 00007f8e3a015fa0