Warning: Permanently added '10.128.0.156' (ED25519) to the list of known hosts. 2026/04/18 18:07:19 parsed 1 programs [ 24.981657][ T36] audit: type=1400 audit(1776535639.220:64): avc: denied { node_bind } for pid=290 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 26.130305][ T36] audit: type=1400 audit(1776535640.360:65): avc: denied { mounton } for pid=296 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 26.131356][ T296] cgroup: Unknown subsys name 'net' [ 26.153114][ T36] audit: type=1400 audit(1776535640.360:66): avc: denied { mount } for pid=296 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 [ 26.180887][ T36] audit: type=1400 audit(1776535640.390:67): avc: denied { unmount } for pid=296 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 26.181268][ T296] cgroup: Unknown subsys name 'devices' [ 26.363432][ T296] cgroup: Unknown subsys name 'hugetlb' [ 26.369103][ T296] cgroup: Unknown subsys name 'rlimit' [ 26.527755][ T36] audit: type=1400 audit(1776535640.760:68): avc: denied { setattr } for pid=296 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=190 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 26.551091][ T36] audit: type=1400 audit(1776535640.760:69): avc: denied { create } for pid=296 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.563565][ T299] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.571745][ T36] audit: type=1400 audit(1776535640.760:70): avc: denied { write } for pid=296 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.601058][ T36] audit: type=1400 audit(1776535640.760:71): avc: denied { read } for pid=296 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 [ 26.617027][ T296] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.621286][ T36] audit: type=1400 audit(1776535640.760:72): avc: denied { sys_module } for pid=296 comm="syz-executor" capability=16 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability permissive=1 [ 26.651333][ T36] audit: type=1400 audit(1776535640.760:73): avc: denied { mounton } for pid=296 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 [ 27.613080][ T302] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 27.796510][ T317] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.803688][ T317] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.810773][ T317] bridge_slave_0: entered allmulticast mode [ 27.817639][ T317] bridge_slave_0: entered promiscuous mode [ 27.827674][ T317] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.834874][ T317] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.841965][ T317] bridge_slave_1: entered allmulticast mode [ 27.848145][ T317] bridge_slave_1: entered promiscuous mode [ 27.891961][ T317] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.899128][ T317] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.906757][ T317] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.914090][ T317] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.935129][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.942593][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.952759][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.959824][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.968756][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.976027][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.000789][ T317] veth0_vlan: entered promiscuous mode [ 28.012480][ T317] veth1_macvtap: entered promiscuous mode [ 28.063676][ T13] bridge_slave_1: left allmulticast mode [ 28.069380][ T13] bridge_slave_1: left promiscuous mode [ 28.075223][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.083543][ T13] bridge_slave_0: left allmulticast mode [ 28.089408][ T13] bridge_slave_0: left promiscuous mode [ 28.095326][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.213879][ T13] veth1_macvtap: left promiscuous mode [ 28.219497][ T13] veth0_vlan: left promiscuous mode 2026/04/18 18:07:23 executed programs: 0 [ 29.062195][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.069461][ T365] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.077062][ T365] bridge_slave_0: entered allmulticast mode [ 29.083538][ T365] bridge_slave_0: entered promiscuous mode [ 29.090584][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.097943][ T365] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.105093][ T365] bridge_slave_1: entered allmulticast mode [ 29.112085][ T365] bridge_slave_1: entered promiscuous mode [ 29.157792][ T365] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.164888][ T365] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.172345][ T365] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.179393][ T365] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.199002][ T337] bridge0: port 1(bridge_slave_0) entered disabled state [ 29.207151][ T337] bridge0: port 2(bridge_slave_1) entered disabled state [ 29.217815][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 29.224911][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.242709][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.249789][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.264975][ T365] veth0_vlan: entered promiscuous mode [ 29.276014][ T365] veth1_macvtap: entered promiscuous mode [ 29.308605][ T365] ------------[ cut here ]------------ [ 29.314663][ T365] WARNING: CPU: 0 PID: 365 at fs/inode.c:340 drop_nlink+0xce/0x110 [ 29.323005][ T365] Modules linked in: [ 29.326914][ T365] CPU: 0 UID: 0 PID: 365 Comm: syz-executor Not tainted syzkaller #0 de3e1d1c5728fabb050931035751e453f935abb5 [ 29.338898][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 29.349270][ T365] RIP: 0010:drop_nlink+0xce/0x110 [ 29.354456][ T365] Code: 04 00 00 be 08 00 00 00 e8 7f 15 ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 58 d9 b1 03 cc e8 62 d3 95 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c [ 29.374184][ T365] RSP: 0018:ffffc9000115fc60 EFLAGS: 00010293 [ 29.380371][ T365] RAX: ffffffff81f1d94e RBX: ffff888114e8cb98 RCX: ffff888114c25f00 [ 29.388422][ T365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 29.396651][ T365] RBP: ffffc9000115fc88 R08: 0000000000000003 R09: 0000000000000004 [ 29.404943][ T365] R10: dffffc0000000000 R11: fffff5200022bf7c R12: dffffc0000000000 [ 29.413295][ T365] R13: 1ffff110229d197c R14: ffff888114e8cbe0 R15: 0000000000000000 [ 29.421721][ T365] FS: 000055556b02b500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 29.430774][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.437500][ T365] CR2: 000055556b04e948 CR3: 0000000113744000 CR4: 00000000003526b0 [ 29.445614][ T365] Call Trace: [ 29.448907][ T365] [ 29.452016][ T365] shmem_rmdir+0x5f/0x90 [ 29.456304][ T365] vfs_rmdir+0x3e3/0x560 [ 29.460558][ T365] incfs_kill_sb+0x109/0x230 [ 29.465212][ T365] deactivate_locked_super+0xd8/0x2a0 [ 29.470696][ T365] deactivate_super+0xb8/0xe0 [ 29.475455][ T365] cleanup_mnt+0x406/0x4a0 [ 29.479930][ T365] __cleanup_mnt+0x1d/0x40 [ 29.484400][ T365] task_work_run+0x1e8/0x260 [ 29.489029][ T365] ? __cfi_task_work_run+0x10/0x10 [ 29.494377][ T365] ? __x64_sys_umount+0x12e/0x180 [ 29.499426][ T365] ? __cfi___x64_sys_umount+0x10/0x10 [ 29.505110][ T365] ? __kasan_check_read+0x15/0x20 [ 29.510345][ T365] resume_user_mode_work+0x35/0x50 [ 29.515850][ T365] syscall_exit_to_user_mode+0x63/0xb0 [ 29.521469][ T365] do_syscall_64+0x63/0xf0 [ 29.525981][ T365] ? clear_bhb_loop+0x50/0xa0 [ 29.530756][ T365] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 29.536677][ T365] RIP: 0033:0x7fb97f39da57 [ 29.541232][ T365] Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 [ 29.561318][ T365] RSP: 002b:00007ffc02e3e758 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 29.569761][ T365] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb97f39da57 [ 29.577836][ T365] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc02e3e810 [ 29.586154][ T365] RBP: 00007ffc02e3e810 R08: 00007ffc02e3f810 R09: 00000000ffffffff [ 29.594390][ T365] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc02e3f8a0 [ 29.602441][ T365] R13: 00007fb97f432048 R14: 0000000000007257 R15: 00007ffc02e3f8e0 [ 29.610426][ T365] [ 29.613481][ T365] ---[ end trace 0000000000000000 ]--- [ 29.619178][ T365] ================================================================== [ 29.627801][ T365] BUG: KASAN: null-ptr-deref in ihold+0x24/0x70 [ 29.634139][ T365] Write of size 4 at addr 0000000000000168 by task syz-executor/365 [ 29.642460][ T365] [ 29.644786][ T365] CPU: 1 UID: 0 PID: 365 Comm: syz-executor Tainted: G W syzkaller #0 de3e1d1c5728fabb050931035751e453f935abb5 [ 29.644807][ T365] Tainted: [W]=WARN [ 29.644812][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 29.644820][ T365] Call Trace: [ 29.644824][ T365] [ 29.644830][ T365] __dump_stack+0x21/0x30 [ 29.644850][ T365] dump_stack_lvl+0x140/0x1c0 [ 29.644865][ T365] ? __cfi_dump_stack_lvl+0x10/0x10 [ 29.644881][ T365] print_report+0x3d/0x70 [ 29.644895][ T365] kasan_report+0x162/0x1a0 [ 29.644908][ T365] ? ihold+0x24/0x70 [ 29.644919][ T365] ? _raw_spin_unlock+0x45/0x60 [ 29.644939][ T365] ? ihold+0x24/0x70 [ 29.644949][ T365] kasan_check_range+0x25a/0x2b0 [ 29.644962][ T365] __kasan_check_write+0x18/0x20 [ 29.644977][ T365] ihold+0x24/0x70 [ 29.644987][ T365] vfs_rmdir+0x26a/0x560 [ 29.645001][ T365] incfs_kill_sb+0x109/0x230 [ 29.645018][ T365] deactivate_locked_super+0xd8/0x2a0 [ 29.645032][ T365] deactivate_super+0xb8/0xe0 [ 29.645045][ T365] cleanup_mnt+0x406/0x4a0 [ 29.645057][ T365] __cleanup_mnt+0x1d/0x40 [ 29.645067][ T365] task_work_run+0x1e8/0x260 [ 29.645082][ T365] ? __cfi_task_work_run+0x10/0x10 [ 29.645095][ T365] ? __x64_sys_umount+0x12e/0x180 [ 29.645110][ T365] ? __cfi___x64_sys_umount+0x10/0x10 [ 29.645125][ T365] ? __kasan_check_read+0x15/0x20 [ 29.645140][ T365] resume_user_mode_work+0x35/0x50 [ 29.645158][ T365] syscall_exit_to_user_mode+0x63/0xb0 [ 29.645174][ T365] do_syscall_64+0x63/0xf0 [ 29.645186][ T365] ? clear_bhb_loop+0x50/0xa0 [ 29.645199][ T365] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 29.645217][ T365] RIP: 0033:0x7fb97f39da57 [ 29.645229][ T365] Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 [ 29.645240][ T365] RSP: 002b:00007ffc02e3e758 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 29.645262][ T365] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb97f39da57 [ 29.645271][ T365] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc02e3e810 [ 29.645279][ T365] RBP: 00007ffc02e3e810 R08: 00007ffc02e3f810 R09: 00000000ffffffff [ 29.645288][ T365] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc02e3f8a0 [ 29.645297][ T365] R13: 00007fb97f432048 R14: 0000000000007257 R15: 00007ffc02e3f8e0 [ 29.645307][ T365] [ 29.645312][ T365] ================================================================== [ 29.894412][ T365] Disabling lock debugging due to kernel taint [ 29.900705][ T365] BUG: kernel NULL pointer dereference, address: 0000000000000168 [ 29.908503][ T365] #PF: supervisor write access in kernel mode [ 29.914677][ T365] #PF: error_code(0x0002) - not-present page [ 29.920653][ T365] PGD 800000010e3aa067 P4D 800000010e3aa067 PUD 0 [ 29.927198][ T365] Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI [ 29.933621][ T365] CPU: 1 UID: 0 PID: 365 Comm: syz-executor Tainted: G B W syzkaller #0 de3e1d1c5728fabb050931035751e453f935abb5 [ 29.947092][ T365] Tainted: [B]=BAD_PAGE, [W]=WARN [ 29.952214][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 29.962442][ T365] RIP: 0010:ihold+0x2a/0x70 [ 29.966958][ T365] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 4d ca 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 3c 0c ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 5d [ 29.986732][ T365] RSP: 0018:ffffc9000115fca0 EFLAGS: 00010246 [ 29.992796][ T365] RAX: ffff888114c25f00 RBX: 0000000000000000 RCX: ffff888114c25f00 [ 30.000763][ T365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 30.008726][ T365] RBP: ffffc9000115fcb0 R08: ffffffff88b99947 R09: 1ffffffff1173328 [ 30.016691][ T365] R10: dffffc0000000000 R11: fffffbfff1173329 R12: ffff888114e8cba4 [ 30.024744][ T365] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 30.032810][ T365] FS: 000055556b02b500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 30.041755][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.048421][ T365] CR2: 0000000000000168 CR3: 0000000113744000 CR4: 00000000003526b0 [ 30.056411][ T365] Call Trace: [ 30.059685][ T365] [ 30.062608][ T365] vfs_rmdir+0x26a/0x560 [ 30.066940][ T365] incfs_kill_sb+0x109/0x230 [ 30.071708][ T365] deactivate_locked_super+0xd8/0x2a0 [ 30.077160][ T365] deactivate_super+0xb8/0xe0 [ 30.081829][ T365] cleanup_mnt+0x406/0x4a0 [ 30.086248][ T365] __cleanup_mnt+0x1d/0x40 [ 30.090837][ T365] task_work_run+0x1e8/0x260 [ 30.095447][ T365] ? __cfi_task_work_run+0x10/0x10 [ 30.101002][ T365] ? __x64_sys_umount+0x12e/0x180 [ 30.106513][ T365] ? __cfi___x64_sys_umount+0x10/0x10 [ 30.111892][ T365] ? __kasan_check_read+0x15/0x20 [ 30.116923][ T365] resume_user_mode_work+0x35/0x50 [ 30.122442][ T365] syscall_exit_to_user_mode+0x63/0xb0 [ 30.128159][ T365] do_syscall_64+0x63/0xf0 [ 30.132582][ T365] ? clear_bhb_loop+0x50/0xa0 [ 30.137424][ T365] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 30.143324][ T365] RIP: 0033:0x7fb97f39da57 [ 30.147731][ T365] Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 [ 30.167471][ T365] RSP: 002b:00007ffc02e3e758 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 30.175904][ T365] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb97f39da57 [ 30.183920][ T365] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc02e3e810 [ 30.191972][ T365] RBP: 00007ffc02e3e810 R08: 00007ffc02e3f810 R09: 00000000ffffffff [ 30.200034][ T365] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc02e3f8a0 [ 30.208180][ T365] R13: 00007fb97f432048 R14: 0000000000007257 R15: 00007ffc02e3f8e0 [ 30.216167][ T365] [ 30.219208][ T365] Modules linked in: [ 30.223094][ T365] CR2: 0000000000000168 [ 30.227239][ T365] ---[ end trace 0000000000000000 ]--- [ 30.232704][ T365] RIP: 0010:ihold+0x2a/0x70 [ 30.237209][ T365] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 4d ca 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 3c 0c ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 5d [ 30.257184][ T365] RSP: 0018:ffffc9000115fca0 EFLAGS: 00010246 [ 30.263258][ T365] RAX: ffff888114c25f00 RBX: 0000000000000000 RCX: ffff888114c25f00 [ 30.271320][ T365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 30.279457][ T365] RBP: ffffc9000115fcb0 R08: ffffffff88b99947 R09: 1ffffffff1173328 [ 30.287620][ T365] R10: dffffc0000000000 R11: fffffbfff1173329 R12: ffff888114e8cba4 [ 30.295670][ T365] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 30.303633][ T365] FS: 000055556b02b500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 30.312551][ T365] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.319125][ T365] CR2: 0000000000000168 CR3: 0000000113744000 CR4: 00000000003526b0 [ 30.327094][ T365] Kernel panic - not syncing: Fatal exception [ 30.333640][ T365] Kernel Offset: disabled [ 30.337959][ T365] Rebooting in 86400 seconds..