BUG: Bad page state in process syz.5.4875 pfn:4b4f3
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4b4f3
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: 0000000000000000 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 25988, tgid 25987 (syz.5.4875), ts 1064511317644
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
page_pool_alloc_netmems net/core/page_pool.c:688 [inline]
page_pool_alloc_frag_netmem+0x561/0x9b0 net/core/page_pool.c:1090
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+0xc2c/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064411822236 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:4575c
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x4575c
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff888000000000 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 25988, tgid 25987 (syz.5.4875), ts 1064511289030
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064411856781 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:26ce1
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x26ce1
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff888000000000 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 25988, tgid 25987 (syz.5.4875), ts 1064511269848
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064411888856 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:816e2
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880816e20c0 pfn:0x816e2
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff8880816e20c0 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 25988, tgid 25987 (syz.5.4875), ts 1064511249868
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064411922037 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:56896
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x56896
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff888000000000 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 25988, tgid 25987 (syz.5.4875), ts 1064511230168
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064411957165 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:7c0a6
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807c0a6000 pfn:0x7c0a6
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff88807c0a6000 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 25988, tgid 25987 (syz.5.4875), ts 1064511210497
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064411992309 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:2bb81
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802bb81ee0 pfn:0x2bb81
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff88802bb81ee0 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 25988, tgid 25987 (syz.5.4875), ts 1064511191128
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064412028305 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:444a9
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880444a9000 pfn:0x444a9
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff8880444a9000 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 25988, tgid 25987 (syz.5.4875), ts 1064511171258
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064412066873 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:7c728
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x7c728
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff888000000000 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 25988, tgid 25987 (syz.5.4875), ts 1064511152013
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064412103510 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:81afb
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x81afb
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: 0000000000000000 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 25988, tgid 25987 (syz.5.4875), ts 1064511132536
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064412135476 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:7e7ba
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88807e7ba000 pfn:0x7e7ba
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff88807e7ba000 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 25988, tgid 25987 (syz.5.4875), ts 1064511112535
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064412172315 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748
BUG: Bad page state in process syz.5.4875 pfn:57269
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888000000000 pfn:0x57269
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 dead000000000040 ffff88801c756000 0000000000000000
raw: ffff888000000000 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 25988, tgid 25987 (syz.5.4875), ts 1064511093595
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
alloc_pages_bulk_node_noprof include/linux/gfp.h:235 [inline]
__page_pool_alloc_netmems_slow+0x14f/0x720 net/core/page_pool.c:637
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+0xc08/0x18e0 net/core/skbuff.c:990
netif_skb_check_for_xdp net/core/dev.c:5652 [inline]
netif_receive_generic_xdp net/core/dev.c:5693 [inline]
do_xdp_generic+0x78f/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 25352 tgid 25352 ts 1064412206388 stack trace:
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__tlb_remove_table_free mm/mmu_gather.c:228 [inline]
tlb_remove_table_rcu+0x85/0x100 mm/mmu_gather.c:291
rcu_do_batch kernel/rcu/tree.c:2650 [inline]
rcu_core+0x926/0x1260 kernel/rcu/tree.c:2919
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
spin_unlock_bh include/linux/spinlock.h:407 [inline]
cfg80211_inform_single_bss_data+0x1491/0x1be0 net/wireless/scan.c:2462
cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
kthread+0x38b/0x480 kernel/kthread.c:436
Modules linked in:
CPU: 1 UID: 0 PID: 25988 Comm: syz.5.4875 Tainted: G B syzkaller #0 PREEMPT(full)
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
bad_page+0x17f/0x1c0 mm/page_alloc.c:647
free_page_is_bad mm/page_alloc.c:1082 [inline]
__free_pages_prepare mm/page_alloc.c:1409 [inline]
__free_frozen_pages+0xd37/0xd90 mm/page_alloc.c:2962
bpf_xdp_shrink_data net/core/filter.c:4383 [inline]
bpf_xdp_frags_shrink_tail+0x4ed/0x800 net/core/filter.c:4407
____bpf_xdp_adjust_tail net/core/filter.c:4429 [inline]
bpf_xdp_adjust_tail+0x1ce/0x210 net/core/filter.c:4422
bpf_prog_5d7dc57dfd7f985a+0x1e/0x24
__bpf_prog_run include/linux/filter.h:779 [inline]
bpf_prog_run_xdp include/net/xdp.h:701 [inline]
bpf_prog_run_generic_xdp+0x612/0x1560 net/core/dev.c:5579
netif_receive_generic_xdp net/core/dev.c:5699 [inline]
do_xdp_generic+0xae1/0x12f0 net/core/dev.c:5761
tun_get_user+0x248b/0x4450 drivers/net/tun.c:1967
tun_chr_write_iter+0x113/0x200 drivers/net/tun.c:2094
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f516bf5ed8e
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:00007f516cd9efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f516cd9f6c0 RCX: 00007f516bf5ed8e
RDX: 000000000000fdef RSI: 0000200000000280 RDI: 00000000000000c8
RBP: 00007f516c035ad8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f516c226038 R14: 00007f516c225fa0 R15: 00007fffef970748