./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor489349129 <...> forked to background, child pid 3182 no interfaces have a carrier [ 18.425497][ T3183] 8021q: adding VLAN 0 to HW filter on device bond0 [ 18.434861][ T3183] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.9' (ECDSA) to the list of known hosts. execve("./syz-executor489349129", ["./syz-executor489349129"], 0x7ffe6e67f9f0 /* 10 vars */) = 0 brk(NULL) = 0x5555556d0000 brk(0x5555556d0c40) = 0x5555556d0c40 arch_prctl(ARCH_SET_FS, 0x5555556d0300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor489349129", 4096) = 27 brk(0x5555556f1c40) = 0x5555556f1c40 brk(0x5555556f2000) = 0x5555556f2000 mprotect(0x7fedf6f30000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3605 attached , child_tidptr=0x5555556d05d0) = 3605 [pid 3605] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3605] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3605] setsid() = 1 [pid 3605] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3605] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3605] unshare(CLONE_NEWNS) = 0 [pid 3605] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3605] unshare(CLONE_NEWIPC) = 0 [pid 3605] unshare(CLONE_NEWCGROUP) = 0 [pid 3605] unshare(CLONE_NEWUTS) = 0 [pid 3605] unshare(CLONE_SYSVSEM) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "16777216", 8) = 8 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "536870912", 9) = 9 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "8192", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024", 4) = 4 [pid 3605] close(3) = 0 [pid 3605] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3605] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3605] close(3) = 0 [pid 3605] getpid() = 1 [pid 3605] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 39.217971][ T3605] dump_stack_lvl+0xcd/0x134 [ 39.222570][ T3605] print_report.cold+0x2ba/0x719 [ 39.227493][ T3605] ? nilfs_segctor_confirm+0x175/0x190 [ 39.232942][ T3605] kasan_report+0xb1/0x1e0 [ 39.237363][ T3605] ? nilfs_segctor_confirm+0x175/0x190 [ 39.242812][ T3605] nilfs_segctor_confirm+0x175/0x190 [ 39.248097][ T3605] nilfs_detach_log_writer+0x856/0x9f0 [ 39.253544][ T3605] ? nilfs_clean_segments+0xa80/0xa80 [ 39.259003][ T3605] ? collect_domain_accesses+0xbf0/0xbf0 [ 39.264637][ T3605] ? __fsnotify_vfsmount_delete+0x20/0x20 [ 39.270356][ T3605] ? dispose_list+0x1e0/0x1e0 [ 39.275026][ T3605] nilfs_put_super+0x3f/0x1a0 [ 39.279694][ T3605] ? nilfs_freeze+0xc0/0xc0 [ 39.284187][ T3605] generic_shutdown_super+0x154/0x410 [ 39.289549][ T3605] kill_block_super+0x97/0xf0 [ 39.294219][ T3605] deactivate_locked_super+0x94/0x160 [ 39.299667][ T3605] deactivate_super+0xad/0xd0 [ 39.304339][ T3605] cleanup_mnt+0x2ae/0x3d0 [ 39.308740][ T3605] task_work_run+0xdd/0x1a0 [ 39.313229][ T3605] do_exit+0xb2f/0x2a20 [ 39.317375][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 39.322212][ T3605] ? do_raw_spin_lock+0x120/0x2a0 [ 39.327288][ T3605] ? mm_update_next_owner+0x7a0/0x7a0 [ 39.332697][ T3605] ? rwlock_bug.part.0+0x90/0x90 [ 39.337713][ T3605] do_group_exit+0xd0/0x2a0 [ 39.342204][ T3605] __x64_sys_exit_group+0x3a/0x50 [ 39.347222][ T3605] do_syscall_64+0x35/0xb0 [ 39.351629][ T3605] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 39.357520][ T3605] RIP: 0033:0x7fedf6ebeb69 [ 39.361932][ T3605] Code: Unable to access opcode bytes at 0x7fedf6ebeb3f. [ 39.368938][ T3605] RSP: 002b:00007ffe9c323778 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 39.377344][ T3605] RAX: ffffffffffffffda RBX: 00007fedf6f36330 RCX: 00007fedf6ebeb69 [ 39.385304][ T3605] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 39.393259][ T3605] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fedf6f30e40 [ 39.401246][ T3605] R10: 00007ffe9c323690 R11: 0000000000000246 R12: 00007fedf6f36330 [ 39.409211][ T3605] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 39.417176][ T3605] [ 39.420189][ T3605] [ 39.422489][ T3605] Allocated by task 3605: [ 39.426795][ T3605] kasan_save_stack+0x1e/0x40 [ 39.431458][ T3605] __kasan_kmalloc+0xa9/0xd0 [ 39.436036][ T3605] nilfs_find_or_create_root+0x84/0x4d0 [ 39.441568][ T3605] nilfs_attach_checkpoint+0xc1/0x4b0 [ 39.447117][ T3605] nilfs_mount+0xb12/0xfb0 [ 39.451521][ T3605] legacy_get_tree+0x105/0x220 [ 39.456263][ T3605] vfs_get_tree+0x89/0x2f0 [ 39.460665][ T3605] path_mount+0x1326/0x1e20 [ 39.465150][ T3605] __x64_sys_mount+0x27f/0x300 [ 39.469910][ T3605] do_syscall_64+0x35/0xb0 [ 39.474416][ T3605] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 39.480295][ T3605] [ 39.482607][ T3605] Freed by task 3605: [ 39.486653][ T3605] kasan_save_stack+0x1e/0x40 [ 39.491321][ T3605] kasan_set_track+0x21/0x30 [ 39.495897][ T3605] kasan_set_free_info+0x20/0x30 [ 39.500924][ T3605] ____kasan_slab_free+0x166/0x1c0 [ 39.506023][ T3605] slab_free_freelist_hook+0x8b/0x1c0 [ 39.511400][ T3605] kfree+0xe2/0x580 [ 39.515211][ T3605] nilfs_put_root+0xb1/0xd0 [ 39.519701][ T3605] nilfs_clear_inode+0x29a/0x330 [ 39.524623][ T3605] nilfs_evict_inode+0x318/0x440 [ 39.529547][ T3605] evict+0x2ed/0x6b0 [ 39.533421][ T3605] dispose_list+0x117/0x1e0 [ 39.537914][ T3605] evict_inodes+0x352/0x450 [ 39.542402][ T3605] generic_shutdown_super+0xab/0x410 [ 39.547678][ T3605] kill_block_super+0x97/0xf0 [ 39.552356][ T3605] deactivate_locked_super+0x94/0x160 [ 39.557715][ T3605] deactivate_super+0xad/0xd0 [ 39.562382][ T3605] cleanup_mnt+0x2ae/0x3d0 [ 39.566792][ T3605] task_work_run+0xdd/0x1a0 [ 39.571283][ T3605] do_exit+0xb2f/0x2a20 [ 39.575423][ T3605] do_group_exit+0xd0/0x2a0 [ 39.579902][ T3605] __x64_sys_exit_group+0x3a/0x50 [ 39.584907][ T3605] do_syscall_64+0x35/0xb0 [ 39.589308][ T3605] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 39.595194][ T3605] [ 39.597499][ T3605] The buggy address belongs to the object at ffff88801d5c9800 [ 39.597499][ T3605] which belongs to the cache kmalloc-256 of size 256 [ 39.611537][ T3605] The buggy address is located 48 bytes inside of [ 39.611537][ T3605] 256-byte region [ffff88801d5c9800, ffff88801d5c9900) [ 39.624806][ T3605] [ 39.627224][ T3605] The buggy address belongs to the physical page: [ 39.633631][ T3605] page:ffffea0000757200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1d5c8 [ 39.643779][ T3605] head:ffffea0000757200 order:1 compound_mapcount:0 compound_pincount:0 [ 39.652089][ T3605] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 39.660061][ T3605] raw: 00fff00000010200 ffffea000080e880 dead000000000003 ffff888011841b40 [ 39.668636][ T3605] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 39.677480][ T3605] page dumped because: kasan: bad access detected [ 39.683867][ T3605] page_owner tracks the page as allocated [ 39.689645][ T3605] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 12, tgid 12 (kworker/u4:1), ts 6626692195, free_ts 0 [ 39.709693][ T3605] get_page_from_freelist+0x109b/0x2ce0 [ 39.715251][ T3605] __alloc_pages+0x1c7/0x510 [ 39.720102][ T3605] alloc_pages+0x1a6/0x270 [ 39.724504][ T3605] allocate_slab+0x27e/0x3d0 [ 39.729074][ T3605] ___slab_alloc+0x84f/0xe80 [ 39.733648][ T3605] __slab_alloc.constprop.0+0x4d/0xa0 [ 39.739036][ T3605] kmem_cache_alloc_trace+0x323/0x3e0 [ 39.744396][ T3605] scsi_probe_and_add_lun+0x3ae/0x3650 [ 39.749835][ T3605] __scsi_scan_target+0x21f/0xdb0 [ 39.754850][ T3605] scsi_scan_channel+0x148/0x1e0 [ 39.759771][ T3605] scsi_scan_host_selected+0x2df/0x3b0 [ 39.765231][ T3605] do_scsi_scan_host+0x1e8/0x260 [ 39.770151][ T3605] do_scan_async+0x3e/0x500 [ 39.774634][ T3605] async_run_entry_fn+0x98/0x530 [ 39.779548][ T3605] process_one_work+0x991/0x1610 [ 39.784464][ T3605] worker_thread+0x665/0x1080 [ 39.789123][ T3605] page_owner free stack trace missing [ 39.794474][ T3605] [ 39.796775][ T3605] Memory state around the buggy address: [ 39.802377][ T3605] ffff88801d5c9700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.810515][ T3605] ffff88801d5c9780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.818568][ T3605] >ffff88801d5c9800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.826702][ T3605] ^ [ 39.832311][ T3605] ffff88801d5c9880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.840360][ T3605] ffff88801d5c9900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.848409][ T3605] ================================================================== [ 39.857208][ T3605] Kernel panic - not syncing: panic_on_warn set ... [ 39.863808][ T3605] CPU: 0 PID: 3605 Comm: syz-executor489 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 [ 39.873879][ T3605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 39.883940][ T3605] Call Trace: [ 39.887203][ T3605] [ 39.890113][ T3605] dump_stack_lvl+0xcd/0x134 [ 39.894777][ T3605] panic+0x2c8/0x622 [ 39.898771][ T3605] ? panic_print_sys_info.part.0+0x10b/0x10b [ 39.904741][ T3605] ? preempt_schedule_common+0x59/0xc0 [ 39.910204][ T3605] ? preempt_schedule_thunk+0x16/0x18 [ 39.915569][ T3605] ? nilfs_segctor_confirm+0x175/0x190 [ 39.921015][ T3605] end_report.part.0+0x3f/0x7c [ 39.925766][ T3605] kasan_report.cold+0xa/0xf [ 39.930350][ T3605] ? nilfs_segctor_confirm+0x175/0x190 [ 39.935800][ T3605] nilfs_segctor_confirm+0x175/0x190 [ 39.941085][ T3605] nilfs_detach_log_writer+0x856/0x9f0 [ 39.946527][ T3605] ? nilfs_clean_segments+0xa80/0xa80 [ 39.951880][ T3605] ? collect_domain_accesses+0xbf0/0xbf0 [ 39.957505][ T3605] ? __fsnotify_vfsmount_delete+0x20/0x20 [ 39.963222][ T3605] ? dispose_list+0x1e0/0x1e0 [ 39.967886][ T3605] nilfs_put_super+0x3f/0x1a0 [ 39.972556][ T3605] ? nilfs_freeze+0xc0/0xc0 [ 39.977052][ T3605] generic_shutdown_super+0x154/0x410 [ 39.982436][ T3605] kill_block_super+0x97/0xf0 [ 39.987125][ T3605] deactivate_locked_super+0x94/0x160 [ 39.992489][ T3605] deactivate_super+0xad/0xd0 [ 39.997158][ T3605] cleanup_mnt+0x2ae/0x3d0 [ 40.001650][ T3605] task_work_run+0xdd/0x1a0 [ 40.006143][ T3605] do_exit+0xb2f/0x2a20 [ 40.010277][ T3605] ? lock_downgrade+0x6e0/0x6e0 [ 40.015116][ T3605] ? do_raw_spin_lock+0x120/0x2a0 [ 40.020120][ T3605] ? mm_update_next_owner+0x7a0/0x7a0 [ 40.025472][ T3605] ? rwlock_bug.part.0+0x90/0x90 [ 40.030394][ T3605] do_group_exit+0xd0/0x2a0 [ 40.034987][ T3605] __x64_sys_exit_group+0x3a/0x50 [ 40.039994][ T3605] do_syscall_64+0x35/0xb0 [ 40.044396][ T3605] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 40.050285][ T3605] RIP: 0033:0x7fedf6ebeb69 [ 40.054687][ T3605] Code: Unable to access opcode bytes at 0x7fedf6ebeb3f. [ 40.061698][ T3605] RSP: 002b:00007ffe9c323778 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 40.070180][ T3605] RAX: ffffffffffffffda RBX: 00007fedf6f36330 RCX: 00007fedf6ebeb69 [ 40.078155][ T3605] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 40.086119][ T3605] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007fedf6f30e40 [ 40.094068][ T3605] R10: 00007ffe9c323690 R11: 0000000000000246 R12: 00007fedf6f36330 [ 40.102016][ T3605] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 40.109976][ T3605] [ 40.113834][ T3605] Kernel Offset: disabled [ 40.118162][ T3605] Rebooting in 86400 seconds..