./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1182819433 <...> Warning: Permanently added '10.128.1.188' (ED25519) to the list of known hosts. execve("./syz-executor1182819433", ["./syz-executor1182819433"], 0x7fff5be34350 /* 10 vars */) = 0 brk(NULL) = 0x555556ac7000 brk(0x555556ac7d00) = 0x555556ac7d00 arch_prctl(ARCH_SET_FS, 0x555556ac7380) = 0 set_tid_address(0x555556ac7650) = 5030 set_robust_list(0x555556ac7660, 24) = 0 rseq(0x555556ac7ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1182819433", 4096) = 28 getrandom("\x0d\x8f\x8c\xd7\xd5\xd2\xef\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556ac7d00 brk(0x555556ae8d00) = 0x555556ae8d00 brk(0x555556ae9000) = 0x555556ae9000 mprotect(0x7f2f643fa000, 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 mkdir("./syzkaller.jtjkyG", 0700) = 0 chmod("./syzkaller.jtjkyG", 0777) = 0 chdir("./syzkaller.jtjkyG") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5031 attached , child_tidptr=0x555556ac7650) = 5031 [pid 5031] set_robust_list(0x555556ac7660, 24) = 0 [pid 5031] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5031] setsid() = 1 [pid 5031] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5031] unshare(CLONE_NEWNS) = 0 [pid 5031] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5031] unshare(CLONE_NEWIPC) = 0 [pid 5031] unshare(CLONE_NEWCGROUP) = 0 [pid 5031] unshare(CLONE_NEWUTS) = 0 [pid 5031] unshare(CLONE_SYSVSEM) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "16777216", 8) = 8 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "536870912", 9) = 9 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "8192", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5031] close(3) = 0 [pid 5031] getpid() = 1 [pid 5031] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 73.161728][ T5031] dump_stack_lvl+0x1e7/0x2d0 [ 73.166417][ T5031] ? nf_tcp_handle_invalid+0x650/0x650 [ 73.171897][ T5031] ? panic+0x770/0x770 [ 73.175965][ T5031] ? _printk+0xd5/0x120 [ 73.180119][ T5031] print_report+0x163/0x540 [ 73.184636][ T5031] ? ktime_get_real_ts64+0x460/0x460 [ 73.189917][ T5031] ? __mutex_lock+0x2ee/0xd60 [ 73.194602][ T5031] ? time64_to_tm+0x331/0x4d0 [ 73.199287][ T5031] ? __virt_addr_valid+0x22f/0x2e0 [ 73.204414][ T5031] ? __phys_addr+0xba/0x170 [ 73.208922][ T5031] ? crc_itu_t+0x1d5/0x2a0 [ 73.213338][ T5031] kasan_report+0x175/0x1b0 [ 73.217849][ T5031] ? crc_itu_t+0x1d5/0x2a0 [ 73.222276][ T5031] ? pvclock_gtod_unregister_notifier+0x50/0x50 [ 73.228531][ T5031] crc_itu_t+0x1d5/0x2a0 [ 73.232789][ T5031] udf_sync_fs+0x1d2/0x380 [ 73.237210][ T5031] ? udf_put_super+0x160/0x160 [ 73.241995][ T5031] ? dentry_kill+0xbb/0x290 [ 73.246512][ T5031] ? get_nr_dirty_inodes+0x1c7/0x210 [ 73.251804][ T5031] sync_filesystem+0xec/0x220 [ 73.256488][ T5031] generic_shutdown_super+0x72/0x2c0 [ 73.261778][ T5031] kill_block_super+0x41/0x70 [ 73.266471][ T5031] deactivate_locked_super+0xa4/0x110 [ 73.271875][ T5031] cleanup_mnt+0x426/0x4c0 [ 73.276306][ T5031] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.281514][ T5031] task_work_run+0x24a/0x300 [ 73.286111][ T5031] ? kasan_quarantine_put+0xd8/0x230 [ 73.291401][ T5031] ? task_work_cancel+0x2b0/0x2b0 [ 73.296436][ T5031] ? kmem_cache_free+0x292/0x500 [ 73.301380][ T5031] ? do_exit+0xa27/0x2650 [ 73.305746][ T5031] do_exit+0xa2c/0x2650 [ 73.309917][ T5031] ? put_task_struct+0xb0/0xb0 [ 73.314685][ T5031] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 73.320683][ T5031] ? print_irqtrace_events+0x220/0x220 [ 73.326150][ T5031] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.331351][ T5031] ? lockdep_hardirqs_on+0x98/0x140 [ 73.336552][ T5031] do_group_exit+0x206/0x2c0 [ 73.341146][ T5031] __x64_sys_exit_group+0x3f/0x40 [ 73.346171][ T5031] do_syscall_64+0x41/0xc0 [ 73.350594][ T5031] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 73.356498][ T5031] RIP: 0033:0x7f2f64381a29 [ 73.360911][ T5031] Code: Unable to access opcode bytes at 0x7f2f643819ff. [ 73.367922][ T5031] RSP: 002b:00007ffd94bda798 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 73.376337][ T5031] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f2f64381a29 [ 73.384309][ T5031] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 73.392277][ T5031] RBP: 00007f2f64400390 R08: ffffffffffffffb8 R09: 00007ffd94bda870 [ 73.400242][ T5031] R10: 00007ffd94bda870 R11: 0000000000000246 R12: 00007f2f64400390 [ 73.408216][ T5031] R13: 0000000000000000 R14: 00007f2f644031c0 R15: 00007f2f6434f1e0 [ 73.416192][ T5031] [ 73.419206][ T5031] [ 73.421523][ T5031] The buggy address belongs to the physical page: [ 73.427940][ T5031] page:ffffea0001d39540 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x74e55 [ 73.438105][ T5031] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 73.445214][ T5031] page_type: 0xffffffff() [ 73.449545][ T5031] raw: 00fff00000000000 ffffea0001f1b348 ffffea0001fdf848 0000000000000000 [ 73.458138][ T5031] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 73.466710][ T5031] page dumped because: kasan: bad access detected [ 73.473111][ T5031] page_owner tracks the page as freed [ 73.478473][ T5031] page last allocated via order 0, migratetype Movable, gfp_mask 0x140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO), pid 5022, tgid 5022 (sshd), ts 64906829657, free_ts 64933611039 [ 73.496446][ T5031] post_alloc_hook+0x1e6/0x210 [ 73.501215][ T5031] get_page_from_freelist+0x31db/0x3360 [ 73.506766][ T5031] __alloc_pages+0x255/0x670 [ 73.511361][ T5031] __folio_alloc+0x13/0x30 [ 73.515778][ T5031] vma_alloc_folio+0x48a/0x9a0 [ 73.520542][ T5031] handle_mm_fault+0x2376/0x62b0 [ 73.525503][ T5031] exc_page_fault+0x455/0x860 [ 73.530186][ T5031] asm_exc_page_fault+0x26/0x30 [ 73.535046][ T5031] page last free stack trace: [ 73.539707][ T5031] free_unref_page_prepare+0x8c3/0x9f0 [ 73.545178][ T5031] free_unref_page_list+0x596/0x830 [ 73.550379][ T5031] release_pages+0x2113/0x23f0 [ 73.555146][ T5031] tlb_flush_mmu+0x34c/0x4e0 [ 73.559735][ T5031] tlb_finish_mmu+0xd4/0x1f0 [ 73.564324][ T5031] unmap_region+0x300/0x350 [ 73.568827][ T5031] do_vmi_align_munmap+0x121e/0x1850 [ 73.574109][ T5031] do_vmi_munmap+0x24d/0x2d0 [ 73.578702][ T5031] __vm_munmap+0x230/0x450 [ 73.583116][ T5031] __x64_sys_munmap+0x69/0x80 [ 73.587795][ T5031] do_syscall_64+0x41/0xc0 [ 73.592216][ T5031] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 73.598119][ T5031] [ 73.600450][ T5031] Memory state around the buggy address: [ 73.606077][ T5031] ffff888074e54f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 73.614132][ T5031] ffff888074e54f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 73.622191][ T5031] >ffff888074e55000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 73.630242][ T5031] ^ [ 73.634302][ T5031] ffff888074e55080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 73.642355][ T5031] ffff888074e55100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 73.650409][ T5031] ================================================================== [ 73.664103][ T5031] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 73.671328][ T5031] CPU: 1 PID: 5031 Comm: syz-executor118 Not tainted 6.6.0-rc7-syzkaller #0 [ 73.680017][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 73.690074][ T5031] Call Trace: [ 73.693400][ T5031] [ 73.696332][ T5031] dump_stack_lvl+0x1e7/0x2d0 [ 73.701038][ T5031] ? nf_tcp_handle_invalid+0x650/0x650 [ 73.706506][ T5031] ? panic+0x770/0x770 [ 73.710577][ T5031] ? vscnprintf+0x5d/0x80 [ 73.714905][ T5031] panic+0x30f/0x770 [ 73.718796][ T5031] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 73.724947][ T5031] ? check_panic_on_warn+0x21/0xa0 [ 73.730053][ T5031] ? __memcpy_flushcache+0x2b0/0x2b0 [ 73.735336][ T5031] ? _raw_spin_unlock_irqrestore+0x12c/0x140 [ 73.741313][ T5031] ? _raw_spin_unlock+0x40/0x40 [ 73.746159][ T5031] check_panic_on_warn+0x82/0xa0 [ 73.751116][ T5031] ? crc_itu_t+0x1d5/0x2a0 [ 73.755554][ T5031] end_report+0x6e/0x130 [ 73.759813][ T5031] kasan_report+0x186/0x1b0 [ 73.764317][ T5031] ? crc_itu_t+0x1d5/0x2a0 [ 73.768739][ T5031] ? pvclock_gtod_unregister_notifier+0x50/0x50 [ 73.774980][ T5031] crc_itu_t+0x1d5/0x2a0 [ 73.779229][ T5031] udf_sync_fs+0x1d2/0x380 [ 73.783644][ T5031] ? udf_put_super+0x160/0x160 [ 73.788409][ T5031] ? dentry_kill+0xbb/0x290 [ 73.792909][ T5031] ? get_nr_dirty_inodes+0x1c7/0x210 [ 73.798203][ T5031] sync_filesystem+0xec/0x220 [ 73.802902][ T5031] generic_shutdown_super+0x72/0x2c0 [ 73.808189][ T5031] kill_block_super+0x41/0x70 [ 73.812867][ T5031] deactivate_locked_super+0xa4/0x110 [ 73.818241][ T5031] cleanup_mnt+0x426/0x4c0 [ 73.822661][ T5031] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.827866][ T5031] task_work_run+0x24a/0x300 [ 73.832463][ T5031] ? kasan_quarantine_put+0xd8/0x230 [ 73.837748][ T5031] ? task_work_cancel+0x2b0/0x2b0 [ 73.842779][ T5031] ? kmem_cache_free+0x292/0x500 [ 73.847712][ T5031] ? do_exit+0xa27/0x2650 [ 73.852055][ T5031] do_exit+0xa2c/0x2650 [ 73.856217][ T5031] ? put_task_struct+0xb0/0xb0 [ 73.860988][ T5031] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 73.866969][ T5031] ? print_irqtrace_events+0x220/0x220 [ 73.872427][ T5031] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.877652][ T5031] ? lockdep_hardirqs_on+0x98/0x140 [ 73.882851][ T5031] do_group_exit+0x206/0x2c0 [ 73.887448][ T5031] __x64_sys_exit_group+0x3f/0x40 [ 73.892487][ T5031] do_syscall_64+0x41/0xc0 [ 73.896909][ T5031] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 73.902819][ T5031] RIP: 0033:0x7f2f64381a29 [ 73.907239][ T5031] Code: Unable to access opcode bytes at 0x7f2f643819ff. [ 73.914747][ T5031] RSP: 002b:00007ffd94bda798 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 73.923161][ T5031] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f2f64381a29 [ 73.931123][ T5031] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 73.939088][ T5031] RBP: 00007f2f64400390 R08: ffffffffffffffb8 R09: 00007ffd94bda870 [ 73.947064][ T5031] R10: 00007ffd94bda870 R11: 0000000000000246 R12: 00007f2f64400390 [ 73.955042][ T5031] R13: 0000000000000000 R14: 00007f2f644031c0 R15: 00007f2f6434f1e0 [ 73.963021][ T5031] [ 73.966303][ T5031] Kernel Offset: disabled [ 73.970628][ T5031] Rebooting in 86400 seconds..