Warning: Permanently added '10.128.1.101' (ED25519) to the list of known hosts. 2026/07/05 06:25:35 parsed 1 programs 2026/07/05 06:25:35 serving rpc on tcp://40671 [ 26.421773][ T24] audit: type=1400 audit(1783232735.569:64): avc: denied { node_bind } for pid=287 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 26.442782][ T24] audit: type=1400 audit(1783232735.569:65): avc: denied { create } for pid=287 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 26.462447][ T24] audit: type=1400 audit(1783232735.569:66): avc: denied { module_request } for pid=287 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 27.054266][ T24] audit: type=1400 audit(1783232736.209:67): avc: denied { mounton } for pid=294 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 27.055530][ T294] cgroup: Unknown subsys name 'net' [ 27.076917][ T24] audit: type=1400 audit(1783232736.209:68): avc: denied { mount } for pid=294 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 27.104116][ T24] audit: type=1400 audit(1783232736.229:69): avc: denied { unmount } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 27.104265][ T294] cgroup: Unknown subsys name 'devices' [ 27.215317][ T294] cgroup: Unknown subsys name 'hugetlb' [ 27.220952][ T294] cgroup: Unknown subsys name 'rlimit' [ 27.364260][ T24] audit: type=1400 audit(1783232736.519:70): avc: denied { setattr } for pid=294 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 27.387747][ T24] audit: type=1400 audit(1783232736.519:71): avc: denied { create } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 27.396723][ T297] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 27.408108][ T24] audit: type=1400 audit(1783232736.519:72): avc: denied { write } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.436904][ T24] audit: type=1400 audit(1783232736.519:73): avc: denied { read } for pid=294 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 27.482735][ T294] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 27.923877][ T304] request_module fs-gadgetfs succeeded, but still no fs? [ 27.933471][ T304] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 28.407713][ T355] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.414907][ T355] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.422499][ T355] device bridge_slave_0 entered promiscuous mode [ 28.429532][ T355] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.436585][ T355] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.443929][ T355] device bridge_slave_1 entered promiscuous mode [ 28.474431][ T355] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.481491][ T355] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.488802][ T355] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.495841][ T355] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.511828][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.519441][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.526968][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.535391][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.543603][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.550643][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.559126][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.567432][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.574468][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.585811][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.595040][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.607754][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.621647][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.629809][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.637438][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.645598][ T355] device veth0_vlan entered promiscuous mode [ 28.658090][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.667308][ T355] device veth1_macvtap entered promiscuous mode [ 28.676086][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.685706][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/07/05 06:25:38 executed programs: 0 [ 28.891898][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.899012][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.906410][ T365] device bridge_slave_0 entered promiscuous mode [ 28.913193][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.920242][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.927937][ T365] device bridge_slave_1 entered promiscuous mode [ 28.966389][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.973419][ T365] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.980688][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.987744][ T365] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.008570][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 29.016585][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.024734][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.040030][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 29.048402][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 29.056967][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.064021][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.072001][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 29.080346][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 29.088573][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.095620][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.103012][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 29.111470][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 29.119628][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 29.127730][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 29.143526][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 29.151896][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.160180][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 29.168220][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.176164][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 29.183524][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.191384][ T365] device veth0_vlan entered promiscuous mode [ 29.201743][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 29.209997][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 29.218973][ T365] device veth1_macvtap entered promiscuous mode [ 29.228575][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 29.236403][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 29.244562][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.254537][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 29.262763][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 29.282212][ T396] ================================================================== [ 29.290324][ T396] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 [ 29.296982][ T396] Write of size 8 at addr ffff88811131b950 by task syz.2.17/396 [ 29.304664][ T396] [ 29.306982][ T396] CPU: 0 PID: 396 Comm: syz.2.17 Not tainted syzkaller #0 [ 29.314073][ T396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 29.324102][ T396] Call Trace: [ 29.327381][ T396] __dump_stack+0x21/0x24 [ 29.331687][ T396] dump_stack_lvl+0x1a7/0x208 [ 29.336340][ T396] ? show_regs_print_info+0x18/0x18 [ 29.341510][ T396] ? thaw_kernel_threads+0x220/0x220 [ 29.346779][ T396] ? debug_smp_processor_id+0x17/0x20 [ 29.352160][ T396] print_address_description+0x7f/0x2c0 [ 29.357815][ T396] ? mutex_lock+0x85/0xf0 [ 29.362130][ T396] kasan_report+0x100/0x140 [ 29.366613][ T396] ? mutex_lock+0x85/0xf0 [ 29.370942][ T396] kasan_check_range+0x249/0x2a0 [ 29.375858][ T396] __kasan_check_write+0x14/0x20 [ 29.380854][ T396] mutex_lock+0x85/0xf0 [ 29.384982][ T396] ? mutex_trylock+0xb0/0xb0 [ 29.389573][ T396] ? l2tp_session_put+0xb2/0x1a0 [ 29.394490][ T396] ? l2tp_session_delete+0x3a9/0x4a0 [ 29.399748][ T396] pppol2tp_release+0x178/0x2b0 [ 29.404578][ T396] sock_close+0xb8/0x200 [ 29.408799][ T396] ? sock_mmap+0xa0/0xa0 [ 29.413016][ T396] __fput+0x2dc/0x730 [ 29.416985][ T396] ____fput+0x15/0x20 [ 29.420947][ T396] task_work_run+0x127/0x190 [ 29.425511][ T396] exit_to_user_mode_loop+0xcb/0xe0 [ 29.430680][ T396] exit_to_user_mode_prepare+0x76/0xa0 [ 29.436121][ T396] syscall_exit_to_user_mode+0x1d/0x40 [ 29.441551][ T396] do_syscall_64+0x3d/0x40 [ 29.445957][ T396] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 29.451818][ T396] RIP: 0033:0x7f515b1dae59 [ 29.456223][ T396] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 29.475834][ T396] RSP: 002b:00007ffd9bc78248 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 29.484228][ T396] RAX: 0000000000000000 RBX: 00007ffd9bc78330 RCX: 00007f515b1dae59 [ 29.492180][ T396] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 29.500134][ T396] RBP: 0000000000007249 R08: 0000000000000001 R09: 0000000000000000 [ 29.508083][ T396] R10: 0000001b32c20000 R11: 0000000000000246 R12: 0000000000000000 [ 29.516038][ T396] R13: 00007f515b462fac R14: 00007f515b462fa8 R15: 00007f515b462fa0 [ 29.523989][ T396] [ 29.526295][ T396] Allocated by task 396: [ 29.530600][ T396] __kasan_kmalloc+0xd4/0x100 [ 29.535252][ T396] __kmalloc+0x19f/0x330 [ 29.539486][ T396] l2tp_session_create+0x39/0xb60 [ 29.544510][ T396] pppol2tp_connect+0xbf5/0x1640 [ 29.549425][ T396] __sys_connect+0x3ce/0x450 [ 29.553997][ T396] __x64_sys_connect+0x7a/0x90 [ 29.558741][ T396] do_syscall_64+0x31/0x40 [ 29.563136][ T396] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 29.569002][ T396] [ 29.571306][ T396] Freed by task 396: [ 29.575176][ T396] kasan_set_track+0x4a/0x70 [ 29.579739][ T396] kasan_set_free_info+0x23/0x40 [ 29.584649][ T396] ____kasan_slab_free+0x125/0x160 [ 29.589732][ T396] __kasan_slab_free+0x11/0x20 [ 29.594470][ T396] slab_free_freelist_hook+0xc5/0x190 [ 29.599817][ T396] kfree+0xc0/0x270 [ 29.603761][ T396] l2tp_session_put+0xb2/0x1a0 [ 29.608527][ T396] l2tp_session_delete+0x3a9/0x4a0 [ 29.613620][ T396] pppol2tp_release+0x169/0x2b0 [ 29.618451][ T396] sock_close+0xb8/0x200 [ 29.622697][ T396] __fput+0x2dc/0x730 [ 29.626658][ T396] ____fput+0x15/0x20 [ 29.630614][ T396] task_work_run+0x127/0x190 [ 29.635184][ T396] exit_to_user_mode_loop+0xcb/0xe0 [ 29.640355][ T396] exit_to_user_mode_prepare+0x76/0xa0 [ 29.645790][ T396] syscall_exit_to_user_mode+0x1d/0x40 [ 29.651225][ T396] do_syscall_64+0x3d/0x40 [ 29.655703][ T396] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 29.661566][ T396] [ 29.663876][ T396] The buggy address belongs to the object at ffff88811131b800 [ 29.663876][ T396] which belongs to the cache kmalloc-512 of size 512 [ 29.677915][ T396] The buggy address is located 336 bytes inside of [ 29.677915][ T396] 512-byte region [ffff88811131b800, ffff88811131ba00) [ 29.691184][ T396] The buggy address belongs to the page: [ 29.696812][ T396] page:ffffea000444c600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x111318 [ 29.707029][ T396] head:ffffea000444c600 order:2 compound_mapcount:0 compound_pincount:0 [ 29.715335][ T396] flags: 0x4000000000010200(slab|head) [ 29.720769][ T396] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 [ 29.729329][ T396] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 29.737895][ T396] page dumped because: kasan: bad access detected [ 29.744289][ T396] page_owner tracks the page as allocated [ 29.749991][ T396] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 365, ts 29274836723, free_ts 29236342117 [ 29.770376][ T396] prep_new_page+0x176/0x190 [ 29.775031][ T396] get_page_from_freelist+0x225f/0x23f0 [ 29.780550][ T396] __alloc_pages_nodemask+0x29a/0x640 [ 29.785895][ T396] new_slab+0x84/0x3f0 [ 29.789937][ T396] ___slab_alloc+0x2f8/0x4c0 [ 29.794507][ T396] __slab_alloc+0x63/0xa0 [ 29.798810][ T396] __kmalloc+0x1f9/0x330 [ 29.803031][ T396] qdisc_alloc+0x79/0x720 [ 29.807425][ T396] qdisc_create_dflt+0x6b/0x390 [ 29.812337][ T396] dev_activate+0x292/0x11c0 [ 29.816902][ T396] __dev_open+0x3e9/0x500 [ 29.821212][ T396] __dev_change_flags+0x1e4/0x6a0 [ 29.826213][ T396] dev_change_flags+0x80/0x1a0 [ 29.830954][ T396] do_setlink+0xb19/0x29a0 [ 29.835343][ T396] rtnl_newlink+0x13e6/0x1830 [ 29.839996][ T396] rtnetlink_rcv_msg+0x9e9/0xca0 [ 29.844910][ T396] page last free stack trace: [ 29.849574][ T396] __free_pages_ok+0x80b/0x830 [ 29.854310][ T396] __free_pages+0xd8/0x390 [ 29.858819][ T396] __free_slab+0xcf/0x190 [ 29.863154][ T396] unfreeze_partials+0x150/0x180 [ 29.868072][ T396] put_cpu_partial+0xc1/0x180 [ 29.872732][ T396] __slab_free+0x2c9/0x3a0 [ 29.877135][ T396] ___cache_free+0x10e/0x130 [ 29.881696][ T396] qlink_free+0x50/0x90 [ 29.885835][ T396] qlist_free_all+0x5f/0xb0 [ 29.890312][ T396] kasan_quarantine_reduce+0x14a/0x160 [ 29.895740][ T396] __kasan_slab_alloc+0x2f/0xe0 [ 29.900567][ T396] slab_post_alloc_hook+0x5d/0x2f0 [ 29.905662][ T396] kmem_cache_alloc+0x15a/0x2d0 [ 29.910487][ T396] __alloc_skb+0x9e/0x520 [ 29.914792][ T396] rtmsg_ifinfo_build_skb+0x75/0x180 [ 29.920049][ T396] rtmsg_ifinfo+0x7a/0x130 [ 29.924434][ T396] [ 29.926737][ T396] Memory state around the buggy address: [ 29.932345][ T396] ffff88811131b800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.940381][ T396] ffff88811131b880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.948416][ T396] >ffff88811131b900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.956450][ T396] ^ [ 29.963099][ T396] ffff88811131b980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.971134][ T396] ffff88811131ba00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.979164][ T396] ================================================================== [ 29.987194][ T396] Disabling lock debugging due to kernel taint