./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2071422427 <...> forked to background, child pid 3182 no interfa[ 18.932623][ T3183] 8021q: adding VLAN 0 to HW filter on device bond0 ces have a carrier [ 18.944337][ T3183] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.54' (ECDSA) to the list of known hosts. execve("./syz-executor2071422427", ["./syz-executor2071422427"], 0x7ffeee54b160 /* 10 vars */) = 0 brk(NULL) = 0x55555743f000 brk(0x55555743fd00) = 0x55555743fd00 arch_prctl(ARCH_SET_FS, 0x55555743f3c0) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2071422427", 4096) = 28 brk(0x555557460d00) = 0x555557460d00 brk(0x555557461000) = 0x555557461000 mprotect(0x7f7c7d08a000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f7c7cfd22f0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f7c7cfd9150}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f7c7cfd22f0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f7c7cfd9150}, NULL, 8) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555743f690) = 3611 ./strace-static-x86_64: Process 3611 attached [pid 3611] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3611] setsid() = 1 [pid 3611] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3611] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3611] unshare(CLONE_NEWNS) = 0 [pid 3611] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3611] unshare(CLONE_NEWIPC) = 0 [pid 3611] unshare(CLONE_NEWCGROUP) = 0 [pid 3611] unshare(CLONE_NEWUTS) = 0 [pid 3611] unshare(CLONE_SYSVSEM) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "16777216", 8) = 8 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "536870912", 9) = 9 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "1024", 4) = 4 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "8192", 4) = 4 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "1024", 4) = 4 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "1024", 4) = 4 [pid 3611] close(3) = 0 [pid 3611] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3611] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3611] close(3) = 0 [pid 3611] getpid() = 1 [pid 3611] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 36.139698][ T3612] dump_stack_lvl+0xcd/0x134 [ 36.144298][ T3612] print_report.cold+0x2ba/0x719 [ 36.149248][ T3612] ? udf_find_entry+0x9f3/0x1230 [ 36.154184][ T3612] kasan_report+0xb1/0x1e0 [ 36.158607][ T3612] ? udf_find_entry+0x9f3/0x1230 [ 36.163541][ T3612] kasan_check_range+0x13d/0x180 [ 36.168484][ T3612] memcpy+0x39/0x60 [ 36.172287][ T3612] udf_find_entry+0x9f3/0x1230 [ 36.177047][ T3612] ? empty_dir+0x840/0x840 [ 36.181454][ T3612] ? mntput+0xc/0x90 [ 36.185354][ T3612] ? rcu_read_lock_sched_held+0xd/0x70 [ 36.190826][ T3612] ? lock_release+0x780/0x780 [ 36.195505][ T3612] ? rcu_read_lock_sched_held+0xd/0x70 [ 36.200974][ T3612] ? kmem_cache_alloc_lru+0x49/0x720 [ 36.206262][ T3612] ? lock_downgrade+0x6e0/0x6e0 [ 36.211205][ T3612] ? lock_acquire+0x480/0x570 [ 36.215880][ T3612] ? rcu_read_lock_sched_held+0xd/0x70 [ 36.221349][ T3612] udf_lookup+0x156/0x270 [ 36.225676][ T3612] ? udf_get_parent+0x210/0x210 [ 36.230525][ T3612] ? d_alloc+0x1b7/0x230 [ 36.234767][ T3612] ? lock_downgrade+0x6e0/0x6e0 [ 36.239621][ T3612] ? rwlock_bug.part.0+0x90/0x90 [ 36.244565][ T3612] ? do_raw_spin_unlock+0x171/0x230 [ 36.249766][ T3612] ? _raw_spin_unlock+0x24/0x40 [ 36.254615][ T3612] ? d_alloc+0x1bc/0x230 [ 36.258859][ T3612] __lookup_hash+0x117/0x180 [ 36.263452][ T3612] do_unlinkat+0x284/0x650 [ 36.267868][ T3612] ? __ia32_sys_rmdir+0x110/0x110 [ 36.272888][ T3612] ? kmem_cache_alloc+0x31b/0x3b0 [ 36.277913][ T3612] ? memcpy+0x39/0x60 [ 36.281887][ T3612] do_coredump+0xcf7/0x3c40 [ 36.286390][ T3612] ? dump_emit+0x340/0x340 [ 36.290809][ T3612] ? finish_task_switch.isra.0+0x2b5/0xc70 [ 36.296615][ T3612] ? __switch_to+0x5cc/0x1050 [ 36.301288][ T3612] ? __switch_to_asm+0x3a/0x60 [ 36.306054][ T3612] ? __schedule+0xae7/0x5270 [ 36.310650][ T3612] ? trace_hardirqs_on+0x2d/0x120 [ 36.315681][ T3612] ? lock_release+0x780/0x780 [ 36.320352][ T3612] ? ptrace_stop.part.0+0x49a/0x8c0 [ 36.325547][ T3612] ? kstrtou8+0x120/0x120 [ 36.329878][ T3612] ? recalc_sigpending_tsk+0x18f/0x1d0 [ 36.335342][ T3612] get_signal+0x1be1/0x2430 [ 36.339852][ T3612] ? lock_release+0x780/0x780 [ 36.344529][ T3612] ? exit_signals+0x8b0/0x8b0 [ 36.349212][ T3612] ? do_raw_spin_lock+0x120/0x2a0 [ 36.354241][ T3612] ? rwlock_bug.part.0+0x90/0x90 [ 36.359182][ T3612] arch_do_signal_or_restart+0x82/0x2300 [ 36.364816][ T3612] ? recalc_sigpending_tsk+0x18f/0x1d0 [ 36.370289][ T3612] ? ptrace_stop.part.0+0x5f4/0x8c0 [ 36.375488][ T3612] ? get_sigframe_size+0x10/0x10 [ 36.380512][ T3612] ? ptrace_notify+0xfa/0x140 [ 36.385193][ T3612] ? lock_downgrade+0x6e0/0x6e0 [ 36.390046][ T3612] ? trace_hardirqs_on+0x2d/0x120 [ 36.395082][ T3612] exit_to_user_mode_prepare+0x15f/0x250 [ 36.400729][ T3612] syscall_exit_to_user_mode+0x19/0x50 [ 36.406187][ T3612] do_syscall_64+0x42/0xb0 [ 36.410603][ T3612] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 36.416497][ T3612] RIP: 0033:0x7f7c7cfd90a6 [ 36.420901][ T3612] Code: b8 ff ff ff ff eb b9 e8 c8 39 04 00 0f 1f 84 00 00 00 00 00 49 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 90 48 83 ec 28 48 89 54 24 10 48 89 74 [ 36.440512][ T3612] RSP: 002b:00007ffc1996ea58 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 36.448931][ T3612] RAX: ffffffffffffffe5 RBX: 0000000000000006 RCX: 00007f7c7cfd90a6 [ 36.456898][ T3612] RDX: 0000000000000027 RSI: 0000020006000001 RDI: 0000000000000006 [ 36.464859][ T3612] RBP: 00007ffc1996ea70 R08: 00007ffc1996e8f0 R09: 000055555743f380 [ 36.472832][ T3612] R10: 6608000000000014 R11: 0000000000000246 R12: 0000000000000028 [ 36.480799][ T3612] R13: 0000000000000006 R14: 000000000000001c R15: 00000000200004a0 [ 36.488772][ T3612] [ 36.491777][ T3612] [ 36.494086][ T3612] Allocated by task 3612: [ 36.498415][ T3612] kasan_save_stack+0x1e/0x40 [ 36.503112][ T3612] __kasan_kmalloc+0xa9/0xd0 [ 36.507702][ T3612] udf_find_entry+0xd3f/0x1230 [ 36.512455][ T3612] udf_lookup+0x156/0x270 [ 36.516773][ T3612] __lookup_hash+0x117/0x180 [ 36.521384][ T3612] do_unlinkat+0x284/0x650 [ 36.525795][ T3612] do_coredump+0xcf7/0x3c40 [ 36.530294][ T3612] get_signal+0x1be1/0x2430 [ 36.534791][ T3612] arch_do_signal_or_restart+0x82/0x2300 [ 36.540418][ T3612] exit_to_user_mode_prepare+0x15f/0x250 [ 36.546041][ T3612] syscall_exit_to_user_mode+0x19/0x50 [ 36.551496][ T3612] do_syscall_64+0x42/0xb0 [ 36.555908][ T3612] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 36.561797][ T3612] [ 36.564110][ T3612] The buggy address belongs to the object at ffff88802069da00 [ 36.564110][ T3612] which belongs to the cache kmalloc-256 of size 256 [ 36.578156][ T3612] The buggy address is located 90 bytes inside of [ 36.578156][ T3612] 256-byte region [ffff88802069da00, ffff88802069db00) [ 36.591338][ T3612] [ 36.593648][ T3612] The buggy address belongs to the physical page: [ 36.600046][ T3612] page:ffffea000081a700 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2069c [ 36.610188][ T3612] head:ffffea000081a700 order:1 compound_mapcount:0 compound_pincount:0 [ 36.618499][ T3612] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 36.626474][ T3612] raw: 00fff00000010200 ffffea0000813100 dead000000000004 ffff888011841b40 [ 36.635053][ T3612] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 36.643626][ T3612] page dumped because: kasan: bad access detected [ 36.650027][ T3612] page_owner tracks the page as allocated [ 36.655724][ T3612] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 9, tgid 9 (kworker/u4:0), ts 6748281877, free_ts 0 [ 36.675607][ T3612] get_page_from_freelist+0x109b/0x2ce0 [ 36.681163][ T3612] __alloc_pages+0x1c7/0x510 [ 36.685753][ T3612] alloc_pages+0x1a6/0x270 [ 36.690167][ T3612] allocate_slab+0x27e/0x3d0 [ 36.694749][ T3612] ___slab_alloc+0x84f/0xe80 [ 36.699340][ T3612] __slab_alloc.constprop.0+0x4d/0xa0 [ 36.704707][ T3612] kmem_cache_alloc_trace+0x323/0x3e0 [ 36.710165][ T3612] scsi_probe_and_add_lun+0x3ae/0x3650 [ 36.715621][ T3612] __scsi_scan_target+0x21f/0xdb0 [ 36.720637][ T3612] scsi_scan_channel+0x148/0x1e0 [ 36.725568][ T3612] scsi_scan_host_selected+0x2df/0x3b0 [ 36.731020][ T3612] do_scsi_scan_host+0x1e8/0x260 [ 36.735977][ T3612] do_scan_async+0x3e/0x500 [ 36.740476][ T3612] async_run_entry_fn+0x98/0x530 [ 36.745406][ T3612] process_one_work+0x991/0x1610 [ 36.750369][ T3612] worker_thread+0x665/0x1080 [ 36.755045][ T3612] page_owner free stack trace missing [ 36.760398][ T3612] [ 36.762708][ T3612] Memory state around the buggy address: [ 36.768321][ T3612] ffff88802069d980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 36.776375][ T3612] ffff88802069da00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 36.784435][ T3612] >ffff88802069da80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 06 [ 36.792495][ T3612] ^ [ 36.800461][ T3612] ffff88802069db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 36.808513][ T3612] ffff88802069db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 36.816561][ T3612] ================================================================== [ 36.824881][ T3612] Kernel panic - not syncing: panic_on_warn set ... [ 36.831493][ T3612] CPU: 1 PID: 3612 Comm: syz-executor207 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 [ 36.841566][ T3612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.851622][ T3612] Call Trace: [ 36.854897][ T3612] [ 36.857817][ T3612] dump_stack_lvl+0xcd/0x134 [ 36.862404][ T3612] panic+0x2c8/0x622 [ 36.866314][ T3612] ? panic_print_sys_info.part.0+0x10b/0x10b [ 36.872324][ T3612] ? preempt_schedule_common+0x59/0xc0 [ 36.877789][ T3612] ? preempt_schedule_thunk+0x16/0x18 [ 36.883182][ T3612] ? udf_find_entry+0x9f3/0x1230 [ 36.888116][ T3612] end_report.part.0+0x3f/0x7c [ 36.892888][ T3612] kasan_report.cold+0xa/0xf [ 36.897473][ T3612] ? udf_find_entry+0x9f3/0x1230 [ 36.902402][ T3612] kasan_check_range+0x13d/0x180 [ 36.907340][ T3612] memcpy+0x39/0x60 [ 36.911136][ T3612] udf_find_entry+0x9f3/0x1230 [ 36.915896][ T3612] ? empty_dir+0x840/0x840 [ 36.920301][ T3612] ? mntput+0xc/0x90 [ 36.924208][ T3612] ? rcu_read_lock_sched_held+0xd/0x70 [ 36.929672][ T3612] ? lock_release+0x780/0x780 [ 36.934341][ T3612] ? rcu_read_lock_sched_held+0xd/0x70 [ 36.939802][ T3612] ? kmem_cache_alloc_lru+0x49/0x720 [ 36.945081][ T3612] ? lock_downgrade+0x6e0/0x6e0 [ 36.949926][ T3612] ? lock_acquire+0x480/0x570 [ 36.954591][ T3612] ? rcu_read_lock_sched_held+0xd/0x70 [ 36.960051][ T3612] udf_lookup+0x156/0x270 [ 36.964372][ T3612] ? udf_get_parent+0x210/0x210 [ 36.969238][ T3612] ? d_alloc+0x1b7/0x230 [ 36.973491][ T3612] ? lock_downgrade+0x6e0/0x6e0 [ 36.978334][ T3612] ? rwlock_bug.part.0+0x90/0x90 [ 36.983270][ T3612] ? do_raw_spin_unlock+0x171/0x230 [ 36.988479][ T3612] ? _raw_spin_unlock+0x24/0x40 [ 36.993325][ T3612] ? d_alloc+0x1bc/0x230 [ 36.997563][ T3612] __lookup_hash+0x117/0x180 [ 37.002150][ T3612] do_unlinkat+0x284/0x650 [ 37.006555][ T3612] ? __ia32_sys_rmdir+0x110/0x110 [ 37.011570][ T3612] ? kmem_cache_alloc+0x31b/0x3b0 [ 37.016606][ T3612] ? memcpy+0x39/0x60 [ 37.020579][ T3612] do_coredump+0xcf7/0x3c40 [ 37.025079][ T3612] ? dump_emit+0x340/0x340 [ 37.029493][ T3612] ? finish_task_switch.isra.0+0x2b5/0xc70 [ 37.035319][ T3612] ? __switch_to+0x5cc/0x1050 [ 37.039986][ T3612] ? __switch_to_asm+0x3a/0x60 [ 37.044745][ T3612] ? __schedule+0xae7/0x5270 [ 37.049331][ T3612] ? trace_hardirqs_on+0x2d/0x120 [ 37.054362][ T3612] ? lock_release+0x780/0x780 [ 37.059025][ T3612] ? ptrace_stop.part.0+0x49a/0x8c0 [ 37.064219][ T3612] ? kstrtou8+0x120/0x120 [ 37.068549][ T3612] ? recalc_sigpending_tsk+0x18f/0x1d0 [ 37.074009][ T3612] get_signal+0x1be1/0x2430 [ 37.078511][ T3612] ? lock_release+0x780/0x780 [ 37.083179][ T3612] ? exit_signals+0x8b0/0x8b0 [ 37.087865][ T3612] ? do_raw_spin_lock+0x120/0x2a0 [ 37.092886][ T3612] ? rwlock_bug.part.0+0x90/0x90 [ 37.097817][ T3612] arch_do_signal_or_restart+0x82/0x2300 [ 37.103533][ T3612] ? recalc_sigpending_tsk+0x18f/0x1d0 [ 37.108992][ T3612] ? ptrace_stop.part.0+0x5f4/0x8c0 [ 37.114181][ T3612] ? get_sigframe_size+0x10/0x10 [ 37.119110][ T3612] ? ptrace_notify+0xfa/0x140 [ 37.123775][ T3612] ? lock_downgrade+0x6e0/0x6e0 [ 37.128623][ T3612] ? trace_hardirqs_on+0x2d/0x120 [ 37.133651][ T3612] exit_to_user_mode_prepare+0x15f/0x250 [ 37.139276][ T3612] syscall_exit_to_user_mode+0x19/0x50 [ 37.144726][ T3612] do_syscall_64+0x42/0xb0 [ 37.149140][ T3612] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 37.155118][ T3612] RIP: 0033:0x7f7c7cfd90a6 [ 37.159543][ T3612] Code: b8 ff ff ff ff eb b9 e8 c8 39 04 00 0f 1f 84 00 00 00 00 00 49 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 90 48 83 ec 28 48 89 54 24 10 48 89 74 [ 37.179158][ T3612] RSP: 002b:00007ffc1996ea58 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 37.187587][ T3612] RAX: ffffffffffffffe5 RBX: 0000000000000006 RCX: 00007f7c7cfd90a6 [ 37.195551][ T3612] RDX: 0000000000000027 RSI: 0000020006000001 RDI: 0000000000000006 [ 37.203517][ T3612] RBP: 00007ffc1996ea70 R08: 00007ffc1996e8f0 R09: 000055555743f380 [ 37.211571][ T3612] R10: 6608000000000014 R11: 0000000000000246 R12: 0000000000000028 [ 37.219537][ T3612] R13: 0000000000000006 R14: 000000000000001c R15: 00000000200004a0 [ 37.227524][ T3612] [ 37.230886][ T3612] Kernel Offset: disabled [ 37.235197][ T3612] Rebooting in 86400 seconds..