./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1516440289 <...> Warning: Permanently added '10.128.0.61' (ED25519) to the list of known hosts. execve("./syz-executor1516440289", ["./syz-executor1516440289"], 0x7ffc8ca85e00 /* 10 vars */) = 0 brk(NULL) = 0x555556926000 brk(0x555556926d00) = 0x555556926d00 arch_prctl(ARCH_SET_FS, 0x555556926380) = 0 set_tid_address(0x555556926650) = 5034 set_robust_list(0x555556926660, 24) = 0 rseq(0x555556926ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1516440289", 4096) = 28 getrandom("\x53\x25\x09\xec\x55\x76\x68\x14", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556926d00 brk(0x555556947d00) = 0x555556947d00 brk(0x555556948000) = 0x555556948000 mprotect(0x7f7266ceb000, 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=0x555556926650) = 5035 ./strace-static-x86_64: Process 5035 attached [pid 5035] set_robust_list(0x555556926660, 24) = 0 [pid 5035] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5035] setsid() = 1 [pid 5035] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5035] unshare(CLONE_NEWNS) = 0 [pid 5035] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5035] unshare(CLONE_NEWIPC) = 0 [pid 5035] unshare(CLONE_NEWCGROUP) = 0 [pid 5035] unshare(CLONE_NEWUTS) = 0 [pid 5035] unshare(CLONE_SYSVSEM) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "16777216", 8) = 8 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "536870912", 9) = 9 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "8192", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5035] close(3) = 0 [pid 5035] getpid() = 1 [pid 5035] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 46.158592][ T5035] dump_stack_lvl+0xd9/0x1b0 [ 46.163186][ T5035] print_report+0xc4/0x620 [ 46.167616][ T5035] ? __virt_addr_valid+0x5e/0x2d0 [ 46.172660][ T5035] ? __phys_addr+0xc6/0x140 [ 46.177170][ T5035] kasan_report+0xda/0x110 [ 46.181648][ T5035] ? crc_itu_t+0xd7/0xe0 [ 46.185898][ T5035] ? crc_itu_t+0xd7/0xe0 [ 46.190151][ T5035] crc_itu_t+0xd7/0xe0 [ 46.194220][ T5035] udf_finalize_lvid+0xf2/0x1f0 [ 46.199067][ T5035] ? udf_mount+0x40/0x40 [ 46.203300][ T5035] udf_sync_fs+0xea/0x150 [ 46.207615][ T5035] ? udf_finalize_lvid+0x1f0/0x1f0 [ 46.212726][ T5035] sync_filesystem+0x109/0x280 [ 46.217480][ T5035] generic_shutdown_super+0x74/0x480 [ 46.222764][ T5035] kill_block_super+0x3b/0xc0 [ 46.227444][ T5035] deactivate_locked_super+0x9a/0x170 [ 46.232805][ T5035] deactivate_super+0xde/0x100 [ 46.237730][ T5035] cleanup_mnt+0x222/0x3d0 [ 46.242131][ T5035] task_work_run+0x14d/0x240 [ 46.246917][ T5035] ? task_work_cancel+0x30/0x30 [ 46.251756][ T5035] ? __put_net+0x61/0x70 [ 46.255995][ T5035] do_exit+0xa99/0x2a20 [ 46.260139][ T5035] ? do_group_exit+0x1c5/0x2a0 [ 46.264933][ T5035] ? reacquire_held_locks+0x4b0/0x4b0 [ 46.270317][ T5035] ? do_raw_spin_lock+0x12e/0x2b0 [ 46.275334][ T5035] ? mm_update_next_owner+0x850/0x850 [ 46.280700][ T5035] ? spin_bug+0x1d0/0x1d0 [ 46.285020][ T5035] ? rcu_is_watching+0x12/0xb0 [ 46.289771][ T5035] do_group_exit+0xd4/0x2a0 [ 46.294283][ T5035] __x64_sys_exit_group+0x3e/0x50 [ 46.299300][ T5035] do_syscall_64+0x38/0xb0 [ 46.303702][ T5035] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 46.309604][ T5035] RIP: 0033:0x7f7266c56989 [ 46.314001][ T5035] Code: Unable to access opcode bytes at 0x7f7266c5695f. [ 46.321008][ T5035] RSP: 002b:00007ffe08672a08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 46.329411][ T5035] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7266c56989 [ 46.337374][ T5035] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 46.345332][ T5035] RBP: 00007f7266cf12d0 R08: ffffffffffffffb8 R09: 0000000000000000 [ 46.353287][ T5035] R10: 0000000000000022 R11: 0000000000000246 R12: 00007f7266cf12d0 [ 46.361239][ T5035] R13: 0000000000000000 R14: 00007f7266cf2040 R15: 00007f7266c24eb0 [ 46.369200][ T5035] [ 46.372204][ T5035] [ 46.374508][ T5035] The buggy address belongs to the physical page: [ 46.380960][ T5035] page:ffffea0001cb0e80 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x72c3a [ 46.391216][ T5035] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 46.398314][ T5035] page_type: 0xffffffff() [ 46.402630][ T5035] raw: 00fff00000000000 ffffea0001cb0ec8 ffffea0001cccfc8 0000000000000000 [ 46.411210][ T5035] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 46.419772][ T5035] page dumped because: kasan: bad access detected [ 46.426167][ T5035] page_owner tracks the page as freed [ 46.431511][ T5035] page last allocated via order 0, migratetype Movable, gfp_mask 0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), pid 5018, tgid 5018 (sshd), ts 39261762319, free_ts 39314478751 [ 46.449462][ T5035] post_alloc_hook+0x2d2/0x350 [ 46.454225][ T5035] get_page_from_freelist+0x10d7/0x31b0 [ 46.459799][ T5035] __alloc_pages+0x1d0/0x4a0 [ 46.464376][ T5035] __folio_alloc+0x16/0x40 [ 46.468785][ T5035] vma_alloc_folio+0x156/0x890 [ 46.473539][ T5035] __handle_mm_fault+0x2385/0x4030 [ 46.478814][ T5035] handle_mm_fault+0x47a/0xa00 [ 46.483570][ T5035] do_user_addr_fault+0x2e7/0xfe0 [ 46.488597][ T5035] exc_page_fault+0x5c/0xd0 [ 46.493093][ T5035] asm_exc_page_fault+0x26/0x30 [ 46.498017][ T5035] page last free stack trace: [ 46.502755][ T5035] free_unref_page_prepare+0x508/0xb90 [ 46.508290][ T5035] free_unref_page_list+0xe6/0xb30 [ 46.513477][ T5035] release_pages+0x32a/0x14e0 [ 46.518229][ T5035] tlb_batch_pages_flush+0x9a/0x190 [ 46.523411][ T5035] tlb_finish_mmu+0x14b/0x6f0 [ 46.528074][ T5035] unmap_region.constprop.0+0x2e6/0x3b0 [ 46.533654][ T5035] do_vmi_align_munmap+0xde3/0x15f0 [ 46.538846][ T5035] do_vmi_munmap+0x20e/0x450 [ 46.543428][ T5035] __vm_munmap+0x144/0x390 [ 46.547860][ T5035] __x64_sys_munmap+0x62/0x80 [ 46.552527][ T5035] do_syscall_64+0x38/0xb0 [ 46.556924][ T5035] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 46.562801][ T5035] [ 46.565103][ T5035] Memory state around the buggy address: [ 46.570882][ T5035] ffff888072c39f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 46.578938][ T5035] ffff888072c39f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 46.586989][ T5035] >ffff888072c3a000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 46.595034][ T5035] ^ [ 46.599082][ T5035] ffff888072c3a080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 46.607123][ T5035] ffff888072c3a100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 46.615164][ T5035] ================================================================== [ 46.623509][ T5035] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 46.630713][ T5035] CPU: 0 PID: 5035 Comm: syz-executor151 Not tainted 6.5.0-rc3-next-20230728-syzkaller #0 [ 46.640621][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 46.650687][ T5035] Call Trace: [ 46.653964][ T5035] [ 46.656888][ T5035] dump_stack_lvl+0xd9/0x1b0 [ 46.661482][ T5035] panic+0x6a4/0x750 [ 46.665466][ T5035] ? panic_smp_self_stop+0xa0/0xa0 [ 46.670577][ T5035] ? trace_irq_enable.constprop.0+0xd0/0x100 [ 46.676561][ T5035] ? preempt_schedule_thunk+0x1a/0x30 [ 46.681937][ T5035] ? preempt_schedule_common+0x45/0xc0 [ 46.687404][ T5035] check_panic_on_warn+0xab/0xb0 [ 46.692341][ T5035] end_report+0x108/0x150 [ 46.696673][ T5035] kasan_report+0xea/0x110 [ 46.701088][ T5035] ? crc_itu_t+0xd7/0xe0 [ 46.705340][ T5035] ? crc_itu_t+0xd7/0xe0 [ 46.709598][ T5035] crc_itu_t+0xd7/0xe0 [ 46.713667][ T5035] udf_finalize_lvid+0xf2/0x1f0 [ 46.718515][ T5035] ? udf_mount+0x40/0x40 [ 46.722754][ T5035] udf_sync_fs+0xea/0x150 [ 46.727081][ T5035] ? udf_finalize_lvid+0x1f0/0x1f0 [ 46.732185][ T5035] sync_filesystem+0x109/0x280 [ 46.736944][ T5035] generic_shutdown_super+0x74/0x480 [ 46.742232][ T5035] kill_block_super+0x3b/0xc0 [ 46.746905][ T5035] deactivate_locked_super+0x9a/0x170 [ 46.752292][ T5035] deactivate_super+0xde/0x100 [ 46.757059][ T5035] cleanup_mnt+0x222/0x3d0 [ 46.761468][ T5035] task_work_run+0x14d/0x240 [ 46.766058][ T5035] ? task_work_cancel+0x30/0x30 [ 46.770933][ T5035] ? __put_net+0x61/0x70 [ 46.775267][ T5035] do_exit+0xa99/0x2a20 [ 46.779434][ T5035] ? do_group_exit+0x1c5/0x2a0 [ 46.784204][ T5035] ? reacquire_held_locks+0x4b0/0x4b0 [ 46.789592][ T5035] ? do_raw_spin_lock+0x12e/0x2b0 [ 46.794719][ T5035] ? mm_update_next_owner+0x850/0x850 [ 46.800114][ T5035] ? spin_bug+0x1d0/0x1d0 [ 46.804459][ T5035] ? rcu_is_watching+0x12/0xb0 [ 46.809228][ T5035] do_group_exit+0xd4/0x2a0 [ 46.813766][ T5035] __x64_sys_exit_group+0x3e/0x50 [ 46.818818][ T5035] do_syscall_64+0x38/0xb0 [ 46.823248][ T5035] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 46.829150][ T5035] RIP: 0033:0x7f7266c56989 [ 46.833561][ T5035] Code: Unable to access opcode bytes at 0x7f7266c5695f. [ 46.840571][ T5035] RSP: 002b:00007ffe08672a08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 46.848983][ T5035] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7266c56989 [ 46.856948][ T5035] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 46.864911][ T5035] RBP: 00007f7266cf12d0 R08: ffffffffffffffb8 R09: 0000000000000000 [ 46.872873][ T5035] R10: 0000000000000022 R11: 0000000000000246 R12: 00007f7266cf12d0 [ 46.880835][ T5035] R13: 0000000000000000 R14: 00007f7266cf2040 R15: 00007f7266c24eb0 [ 46.888809][ T5035] [ 46.892020][ T5035] Kernel Offset: disabled [ 46.896328][ T5035] Rebooting in 86400 seconds..