./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1717416656 <...> Warning: Permanently added '10.128.0.237' (ED25519) to the list of known hosts. execve("./syz-executor1717416656", ["./syz-executor1717416656"], 0x7ffce4625d40 /* 10 vars */) = 0 brk(NULL) = 0x555556f26000 brk(0x555556f26d00) = 0x555556f26d00 arch_prctl(ARCH_SET_FS, 0x555556f26380) = 0 set_tid_address(0x555556f26650) = 5066 set_robust_list(0x555556f26660, 24) = 0 rseq(0x555556f26ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1717416656", 4096) = 28 getrandom("\xc0\x73\xd1\x92\x29\x7c\x3f\x64", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556f26d00 brk(0x555556f47d00) = 0x555556f47d00 brk(0x555556f48000) = 0x555556f48000 mprotect(0x7ff4374be000, 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, child_tidptr=0x555556f26650) = 5067 ./strace-static-x86_64: Process 5067 attached [pid 5067] set_robust_list(0x555556f26660, 24) = 0 [pid 5067] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] setsid() = 1 [pid 5067] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5067] unshare(CLONE_NEWNS) = 0 [pid 5067] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5067] unshare(CLONE_NEWIPC) = 0 [pid 5067] unshare(CLONE_NEWCGROUP) = 0 [pid 5067] unshare(CLONE_NEWUTS) = 0 [pid 5067] unshare(CLONE_SYSVSEM) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "16777216", 8) = 8 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "536870912", 9) = 9 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "8192", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5067] close(3) = 0 [pid 5067] getpid() = 1 [pid 5067] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 56.291082][ T5067] dump_stack_lvl+0xd9/0x1b0 [ 56.295665][ T5067] print_report+0xc4/0x620 [ 56.300074][ T5067] ? __virt_addr_valid+0x5e/0x2d0 [ 56.305090][ T5067] ? __phys_addr+0xc6/0x140 [ 56.309580][ T5067] kasan_report+0xda/0x110 [ 56.313978][ T5067] ? udf_close_lvid+0x508/0x5c0 [ 56.318805][ T5067] ? udf_close_lvid+0x508/0x5c0 [ 56.323640][ T5067] udf_close_lvid+0x508/0x5c0 [ 56.328306][ T5067] ? fscrypt_destroy_keyring+0x1e/0x3d0 [ 56.333839][ T5067] udf_put_super+0x19c/0x200 [ 56.338413][ T5067] ? udf_close_lvid+0x5c0/0x5c0 [ 56.343245][ T5067] generic_shutdown_super+0x161/0x3c0 [ 56.348610][ T5067] kill_block_super+0x3b/0x90 [ 56.353267][ T5067] deactivate_locked_super+0xbc/0x1a0 [ 56.358620][ T5067] deactivate_super+0xde/0x100 [ 56.363365][ T5067] cleanup_mnt+0x222/0x450 [ 56.367777][ T5067] task_work_run+0x14d/0x240 [ 56.372353][ T5067] ? task_work_cancel+0x30/0x30 [ 56.377186][ T5067] do_exit+0xa92/0x2ae0 [ 56.381327][ T5067] ? do_group_exit+0x1c5/0x2a0 [ 56.386074][ T5067] ? reacquire_held_locks+0x4b0/0x4b0 [ 56.391431][ T5067] ? do_raw_spin_lock+0x12e/0x2b0 [ 56.396440][ T5067] ? mm_update_next_owner+0x840/0x840 [ 56.401811][ T5067] ? spin_bug+0x1d0/0x1d0 [ 56.406138][ T5067] do_group_exit+0xd4/0x2a0 [ 56.410632][ T5067] __x64_sys_exit_group+0x3e/0x50 [ 56.415648][ T5067] do_syscall_64+0x3f/0x110 [ 56.420139][ T5067] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 56.426012][ T5067] RIP: 0033:0x7ff437428d49 [ 56.430408][ T5067] Code: Unable to access opcode bytes at 0x7ff437428d1f. [ 56.437397][ T5067] RSP: 002b:00007fff2ccd8168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.445784][ T5067] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff437428d49 [ 56.453734][ T5067] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.461680][ T5067] RBP: 00007ff4374c4390 R08: ffffffffffffffb8 R09: 000000000001f22c [ 56.469630][ T5067] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff4374c4390 [ 56.477583][ T5067] R13: 0000000000000000 R14: 00007ff4374c5100 R15: 00007ff4373f7030 [ 56.485571][ T5067] [ 56.488567][ T5067] [ 56.490867][ T5067] The buggy address belongs to the physical page: [ 56.497248][ T5067] page:ffffea00023bc900 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8ef24 [ 56.507375][ T5067] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 56.514457][ T5067] page_type: 0xffffffff() [ 56.518763][ T5067] raw: 00fff00000000000 ffffea00023bc908 ffffea00023bc908 0000000000000000 [ 56.527324][ T5067] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 56.535881][ T5067] page dumped because: kasan: bad access detected [ 56.542273][ T5067] page_owner info is not present (never set?) [ 56.548306][ T5067] [ 56.550608][ T5067] Memory state around the buggy address: [ 56.556209][ T5067] ffff88808ef23f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 56.564255][ T5067] ffff88808ef23f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 56.572290][ T5067] >ffff88808ef24000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 56.580325][ T5067] ^ [ 56.587750][ T5067] ffff88808ef24080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 56.595795][ T5067] ffff88808ef24100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 56.603855][ T5067] ================================================================== [ 56.617222][ T5067] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 56.624420][ T5067] CPU: 0 PID: 5067 Comm: syz-executor171 Not tainted 6.6.0-syzkaller-16201-gb57b17e88bf5 #0 [ 56.634461][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 [ 56.644496][ T5067] Call Trace: [ 56.647756][ T5067] [ 56.650673][ T5067] dump_stack_lvl+0xd9/0x1b0 [ 56.655258][ T5067] panic+0x6dc/0x790 [ 56.659159][ T5067] ? panic_smp_self_stop+0xa0/0xa0 [ 56.664256][ T5067] ? preempt_schedule_thunk+0x1a/0x30 [ 56.669621][ T5067] ? preempt_schedule_common+0x45/0xc0 [ 56.675060][ T5067] ? check_panic_on_warn+0x1f/0xb0 [ 56.680176][ T5067] check_panic_on_warn+0xab/0xb0 [ 56.685097][ T5067] end_report+0x108/0x150 [ 56.689409][ T5067] kasan_report+0xea/0x110 [ 56.693806][ T5067] ? udf_close_lvid+0x508/0x5c0 [ 56.698638][ T5067] ? udf_close_lvid+0x508/0x5c0 [ 56.703474][ T5067] udf_close_lvid+0x508/0x5c0 [ 56.708133][ T5067] ? fscrypt_destroy_keyring+0x1e/0x3d0 [ 56.713667][ T5067] udf_put_super+0x19c/0x200 [ 56.718238][ T5067] ? udf_close_lvid+0x5c0/0x5c0 [ 56.723073][ T5067] generic_shutdown_super+0x161/0x3c0 [ 56.728422][ T5067] kill_block_super+0x3b/0x90 [ 56.733077][ T5067] deactivate_locked_super+0xbc/0x1a0 [ 56.738442][ T5067] deactivate_super+0xde/0x100 [ 56.743186][ T5067] cleanup_mnt+0x222/0x450 [ 56.747588][ T5067] task_work_run+0x14d/0x240 [ 56.752166][ T5067] ? task_work_cancel+0x30/0x30 [ 56.757001][ T5067] do_exit+0xa92/0x2ae0 [ 56.761139][ T5067] ? do_group_exit+0x1c5/0x2a0 [ 56.765889][ T5067] ? reacquire_held_locks+0x4b0/0x4b0 [ 56.771244][ T5067] ? do_raw_spin_lock+0x12e/0x2b0 [ 56.776250][ T5067] ? mm_update_next_owner+0x840/0x840 [ 56.781607][ T5067] ? spin_bug+0x1d0/0x1d0 [ 56.785917][ T5067] do_group_exit+0xd4/0x2a0 [ 56.790400][ T5067] __x64_sys_exit_group+0x3e/0x50 [ 56.795425][ T5067] do_syscall_64+0x3f/0x110 [ 56.799909][ T5067] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 56.805778][ T5067] RIP: 0033:0x7ff437428d49 [ 56.810170][ T5067] Code: Unable to access opcode bytes at 0x7ff437428d1f. [ 56.817161][ T5067] RSP: 002b:00007fff2ccd8168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.825551][ T5067] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff437428d49 [ 56.833501][ T5067] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.841465][ T5067] RBP: 00007ff4374c4390 R08: ffffffffffffffb8 R09: 000000000001f22c [ 56.849504][ T5067] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff4374c4390 [ 56.857467][ T5067] R13: 0000000000000000 R14: 00007ff4374c5100 R15: 00007ff4373f7030 [ 56.865424][ T5067] [ 56.868659][ T5067] Kernel Offset: disabled [ 56.872981][ T5067] Rebooting in 86400 seconds..