Warning: Permanently added '10.128.1.2' (ED25519) to the list of known hosts. 2026/09/22 14:09:37 parsed 1 programs 2026/09/22 14:09:37 serving rpc on tcp://34711 [ 24.311067][ T30] audit: type=1400 audit(1790086177.361:64): avc: denied { node_bind } for pid=293 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 24.332328][ T30] audit: type=1400 audit(1790086177.361:65): avc: denied { module_request } for pid=293 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 [ 24.951551][ T30] audit: type=1400 audit(1790086178.001:66): avc: denied { mounton } for pid=299 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 [ 24.952713][ T299] cgroup: Unknown subsys name 'net' [ 24.974421][ T30] audit: type=1400 audit(1790086178.001:67): avc: denied { mount } for pid=299 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 [ 25.001835][ T30] audit: type=1400 audit(1790086178.021:68): avc: denied { unmount } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.001986][ T299] cgroup: Unknown subsys name 'devices' [ 25.111947][ T299] cgroup: Unknown subsys name 'hugetlb' [ 25.117587][ T299] cgroup: Unknown subsys name 'rlimit' [ 25.229202][ T30] audit: type=1400 audit(1790086178.271:69): avc: denied { setattr } for pid=299 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=254 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 25.252994][ T30] audit: type=1400 audit(1790086178.271:70): avc: denied { create } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.258652][ T303] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 25.273578][ T30] audit: type=1400 audit(1790086178.271:71): avc: denied { write } for pid=299 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.302438][ T30] audit: type=1400 audit(1790086178.271:72): avc: denied { read } for pid=299 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 [ 25.322827][ T30] audit: type=1400 audit(1790086178.271:73): avc: denied { mounton } for pid=299 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 25.356966][ T299] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.827573][ T307] request_module fs-gadgetfs succeeded, but still no fs? [ 26.051158][ T323] syz-executor (323) used greatest stack depth: 21792 bytes left [ 26.246416][ T339] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.254466][ T339] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.262019][ T339] device bridge_slave_0 entered promiscuous mode [ 26.269455][ T339] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.276796][ T339] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.284124][ T339] device bridge_slave_1 entered promiscuous mode [ 26.319936][ T339] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.327028][ T339] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.334644][ T339] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.341704][ T339] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.358933][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.366722][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.374215][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.392728][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.401121][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.408144][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.415791][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.424210][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.431270][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.439708][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.449083][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.461914][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.472872][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.480932][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.488489][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.496881][ T339] device veth0_vlan entered promiscuous mode [ 26.507176][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.516262][ T339] device veth1_macvtap entered promiscuous mode [ 26.524889][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.534797][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2026/09/22 14:09:39 executed programs: 0 [ 26.869891][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.877036][ T368] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.884592][ T368] device bridge_slave_0 entered promiscuous mode [ 26.892537][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.899718][ T368] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.907488][ T368] device bridge_slave_1 entered promiscuous mode [ 26.952126][ T368] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.959180][ T368] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.966505][ T368] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.973628][ T368] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.995895][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.003665][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.011310][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.023682][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 27.032661][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.041105][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.048147][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.056860][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 27.065471][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.073749][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.080787][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.097039][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 27.105292][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.114351][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 27.123721][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.142024][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 27.150471][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.161667][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 27.169908][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.179761][ T368] device veth0_vlan entered promiscuous mode [ 27.186399][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.194038][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.212755][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 27.221231][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.229692][ T368] device veth1_macvtap entered promiscuous mode [ 27.242782][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 27.250736][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 27.258992][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.268528][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 27.276791][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.341354][ T374] ================================================================== [ 27.349457][ T374] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 [ 27.356253][ T374] Write of size 8 at addr ffff88812111d950 by task syz.2.17/374 [ 27.363867][ T374] [ 27.366189][ T374] CPU: 1 PID: 374 Comm: syz.2.17 Not tainted syzkaller #0 [ 27.373284][ T374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 27.383352][ T374] Call Trace: [ 27.386625][ T374] [ 27.389540][ T374] __dump_stack+0x21/0x30 [ 27.393864][ T374] dump_stack_lvl+0x110/0x170 [ 27.398547][ T374] ? show_regs_print_info+0x20/0x20 [ 27.403734][ T374] ? load_image+0x3f0/0x3f0 [ 27.408217][ T374] print_address_description+0x7f/0x2c0 [ 27.413743][ T374] ? mutex_lock+0x8e/0x1c0 [ 27.418149][ T374] kasan_report+0x10f/0x150 [ 27.422634][ T374] ? mutex_lock+0x8e/0x1c0 [ 27.427029][ T374] kasan_check_range+0x249/0x2a0 [ 27.431950][ T374] __kasan_check_write+0x14/0x20 [ 27.436957][ T374] mutex_lock+0x8e/0x1c0 [ 27.441203][ T374] ? wait_for_completion_killable_timeout+0x10/0x10 [ 27.447790][ T374] ? l2tp_session_put+0xaf/0x1a0 [ 27.452720][ T374] ? l2tp_session_delete+0x3a9/0x4a0 [ 27.457989][ T374] pppol2tp_release+0x178/0x2b0 [ 27.462826][ T374] sock_close+0xb8/0x200 [ 27.467048][ T374] ? sock_mmap+0xa0/0xa0 [ 27.471270][ T374] __fput+0x22b/0x900 [ 27.475242][ T374] ____fput+0x15/0x20 [ 27.479221][ T374] task_work_run+0x127/0x190 [ 27.483808][ T374] do_exit+0xb70/0x29a0 [ 27.487946][ T374] ? put_task_struct+0x90/0x90 [ 27.492690][ T374] ? __remove_hrtimer+0x157/0x3d0 [ 27.497722][ T374] ? __kasan_check_write+0x14/0x20 [ 27.502910][ T374] ? _raw_spin_lock_irq+0x95/0xf0 [ 27.507935][ T374] do_group_exit+0x149/0x310 [ 27.512538][ T374] ? __kasan_check_write+0x14/0x20 [ 27.517636][ T374] ? recalc_sigpending+0x1c4/0x230 [ 27.522730][ T374] get_signal+0x64f/0x1430 [ 27.527261][ T374] ? usleep_range_state+0x130/0x130 [ 27.532459][ T374] arch_do_signal_or_restart+0xe2/0x1100 [ 27.538082][ T374] ? nanosleep_copyout+0x120/0x120 [ 27.543177][ T374] ? __remove_hrtimer+0x3d0/0x3d0 [ 27.548202][ T374] ? get_timespec64+0x116/0x1b0 [ 27.553040][ T374] ? get_sigframe_size+0x10/0x10 [ 27.557964][ T374] ? __x64_sys_clock_nanosleep+0xb0/0xb0 [ 27.563590][ T374] exit_to_user_mode_loop+0xa7/0xe0 [ 27.568785][ T374] exit_to_user_mode_prepare+0x87/0xd0 [ 27.574223][ T374] syscall_exit_to_user_mode+0x1a/0x30 [ 27.579674][ T374] do_syscall_64+0x58/0xa0 [ 27.584070][ T374] ? clear_bhb_loop+0x50/0xa0 [ 27.588729][ T374] ? clear_bhb_loop+0x50/0xa0 [ 27.593416][ T374] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.599290][ T374] RIP: 0033:0x7fa9c98b52d7 [ 27.603688][ T374] Code: Unable to access opcode bytes at RIP 0x7fa9c98b52ad. [ 27.611028][ T374] RSP: 002b:00007ffd4f4fd340 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6 [ 27.619605][ T374] RAX: fffffffffffffdfc RBX: 0000555574071500 RCX: 00007fa9c98b52d7 [ 27.627599][ T374] RDX: 00007ffd4f4fd380 RSI: 0000000000000000 RDI: 0000000000000000 [ 27.635597][ T374] RBP: 00007fa9c999106b R08: 0000000000000000 R09: 0000000000000000 [ 27.643563][ T374] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 27.651516][ T374] R13: 00007fa9c9b81fac R14: 00007fa9c9b81fa0 R15: 00007fa9c9b81fa0 [ 27.659471][ T374] [ 27.662470][ T374] [ 27.664860][ T374] Allocated by task 373: [ 27.669072][ T374] __kasan_kmalloc+0xd4/0x100 [ 27.673733][ T374] __kmalloc+0x13d/0x2c0 [ 27.678051][ T374] l2tp_session_create+0x39/0xb60 [ 27.683144][ T374] pppol2tp_connect+0xbf5/0x1640 [ 27.688088][ T374] __sys_connect+0x3cb/0x450 [ 27.692772][ T374] __x64_sys_connect+0x7a/0x90 [ 27.697546][ T374] x64_sys_call+0x7c/0x9a0 [ 27.701946][ T374] do_syscall_64+0x4c/0xa0 [ 27.706344][ T374] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.712215][ T374] [ 27.714520][ T374] Freed by task 374: [ 27.718404][ T374] kasan_set_track+0x4a/0x70 [ 27.722974][ T374] kasan_set_free_info+0x23/0x40 [ 27.727912][ T374] ____kasan_slab_free+0x125/0x160 [ 27.733018][ T374] __kasan_slab_free+0x11/0x20 [ 27.738019][ T374] slab_free_freelist_hook+0xc2/0x190 [ 27.743368][ T374] kfree+0xc4/0x270 [ 27.747592][ T374] l2tp_session_put+0xaf/0x1a0 [ 27.752353][ T374] l2tp_session_delete+0x3a9/0x4a0 [ 27.757464][ T374] pppol2tp_release+0x169/0x2b0 [ 27.762306][ T374] sock_close+0xb8/0x200 [ 27.766532][ T374] __fput+0x22b/0x900 [ 27.770499][ T374] ____fput+0x15/0x20 [ 27.774490][ T374] task_work_run+0x127/0x190 [ 27.779067][ T374] do_exit+0xb70/0x29a0 [ 27.783230][ T374] do_group_exit+0x149/0x310 [ 27.787804][ T374] get_signal+0x64f/0x1430 [ 27.792206][ T374] arch_do_signal_or_restart+0xe2/0x1100 [ 27.797827][ T374] exit_to_user_mode_loop+0xa7/0xe0 [ 27.803006][ T374] exit_to_user_mode_prepare+0x87/0xd0 [ 27.808442][ T374] syscall_exit_to_user_mode+0x1a/0x30 [ 27.813907][ T374] do_syscall_64+0x58/0xa0 [ 27.818300][ T374] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.824198][ T374] [ 27.826500][ T374] The buggy address belongs to the object at ffff88812111d800 [ 27.826500][ T374] which belongs to the cache kmalloc-512 of size 512 [ 27.840532][ T374] The buggy address is located 336 bytes inside of [ 27.840532][ T374] 512-byte region [ffff88812111d800, ffff88812111da00) [ 27.853873][ T374] The buggy address belongs to the page: [ 27.859765][ T374] page:ffffea0004844700 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12111c [ 27.870694][ T374] head:ffffea0004844700 order:2 compound_mapcount:0 compound_pincount:0 [ 27.879085][ T374] flags: 0x4000000000010200(slab|head|zone=1) [ 27.885166][ T374] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 27.894305][ T374] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 27.902897][ T374] page dumped because: kasan: bad access detected [ 27.909310][ T374] page_owner tracks the page as allocated [ 27.915029][ T374] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 368, ts 27291472735, free_ts 16677048833 [ 27.933334][ T374] post_alloc_hook+0x192/0x1b0 [ 27.938094][ T374] prep_new_page+0x1c/0x110 [ 27.942579][ T374] get_page_from_freelist+0x2c3a/0x2cd0 [ 27.948102][ T374] __alloc_pages+0x1a2/0x460 [ 27.952678][ T374] new_slab+0xa0/0x4d0 [ 27.956757][ T374] ___slab_alloc+0x3ac/0x840 [ 27.961487][ T374] __slab_alloc+0x49/0x90 [ 27.965813][ T374] __kmalloc+0x16a/0x2c0 [ 27.970039][ T374] fib6_info_alloc+0x34/0xe0 [ 27.974615][ T374] ip6_route_info_create+0x51b/0x14d0 [ 27.979977][ T374] ip6_route_add+0x27/0x130 [ 27.984571][ T374] addrconf_permanent_addr+0x635/0x940 [ 27.990073][ T374] addrconf_notify+0x752/0xe00 [ 27.995193][ T374] raw_notifier_call_chain+0x90/0x100 [ 28.000564][ T374] __dev_notify_flags+0x2f4/0x5b0 [ 28.005831][ T374] dev_change_flags+0xe3/0x1a0 [ 28.010834][ T374] page last free stack trace: [ 28.015846][ T374] free_unref_page_prepare+0x5fa/0x600 [ 28.021321][ T374] free_unref_page+0xae/0x540 [ 28.025987][ T374] free_compound_page+0x78/0xa0 [ 28.030822][ T374] __put_compound_page+0x77/0xb0 [ 28.035750][ T374] __put_page+0xbc/0xe0 [ 28.039893][ T374] skb_release_data+0x37c/0xa20 [ 28.044724][ T374] __kfree_skb+0x50/0x70 [ 28.048954][ T374] tcp_recvmsg_locked+0x13d1/0x24f0 [ 28.054130][ T374] tcp_recvmsg+0x233/0x770 [ 28.058539][ T374] inet_recvmsg+0x13a/0x470 [ 28.063020][ T374] sock_read_iter+0x2c2/0x380 [ 28.067699][ T374] vfs_read+0x6c0/0xc20 [ 28.071847][ T374] ksys_read+0x14a/0x260 [ 28.076066][ T374] __x64_sys_read+0x7b/0x90 [ 28.080543][ T374] x64_sys_call+0x96d/0x9a0 [ 28.085023][ T374] do_syscall_64+0x4c/0xa0 [ 28.089425][ T374] [ 28.091726][ T374] Memory state around the buggy address: [ 28.097332][ T374] ffff88812111d800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.105376][ T374] ffff88812111d880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.113415][ T374] >ffff88812111d900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.121449][ T374] ^ [ 28.128099][ T374] ffff88812111d980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 28.136137][ T374] ffff88812111da00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.144369][ T374] ================================================================== [ 28.152405][ T374] Disabling lock debugging due to kernel taint