./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2681603668 <...> DUID 00:04:e3:38:52:80:67:3f:e9:c9:a2:47:22:a3:59:23:7d:1e forked to background, child pid 3186 [ 24.181551][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0 [ 24.192291][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.43' (ECDSA) to the list of known hosts. execve("./syz-executor2681603668", ["./syz-executor2681603668"], 0x7ffe2ffb3650 /* 10 vars */) = 0 brk(NULL) = 0x55555732c000 brk(0x55555732cc40) = 0x55555732cc40 arch_prctl(ARCH_SET_FS, 0x55555732c300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2681603668", 4096) = 28 brk(0x55555734dc40) = 0x55555734dc40 brk(0x55555734e000) = 0x55555734e000 mprotect(0x7f9f278f6000, 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 3616 attached , child_tidptr=0x55555732c5d0) = 3616 [pid 3616] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3616] setsid() = 1 [pid 3616] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3616] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3616] unshare(CLONE_NEWNS) = 0 [pid 3616] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3616] unshare(CLONE_NEWIPC) = 0 [pid 3616] unshare(CLONE_NEWCGROUP) = 0 [pid 3616] unshare(CLONE_NEWUTS) = 0 [pid 3616] unshare(CLONE_SYSVSEM) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "16777216", 8) = 8 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "536870912", 9) = 9 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "8192", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024", 4) = 4 [pid 3616] close(3) = 0 [pid 3616] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3616] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3616] close(3) = 0 [pid 3616] getpid() = 1 [pid 3616] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 40.661345][ T3616] dump_stack_lvl+0x1b1/0x28e [ 40.666012][ T3616] ? fortify_panic+0x13/0x13 [ 40.670603][ T3616] ? _printk+0xc0/0x100 [ 40.674740][ T3616] ? __wake_up_klogd+0xd6/0x100 [ 40.679572][ T3616] ? __wake_up_klogd+0xcd/0x100 [ 40.684401][ T3616] ? panic+0x715/0x715 [ 40.688448][ T3616] ? _printk+0xc0/0x100 [ 40.692583][ T3616] print_address_description+0x65/0x4b0 [ 40.698109][ T3616] print_report+0x108/0x1f0 [ 40.702590][ T3616] ? read_lock_is_recursive+0x10/0x10 [ 40.707941][ T3616] ? nilfs_test_metadata_dirty+0x39/0x210 [ 40.713645][ T3616] kasan_report+0xc3/0xf0 [ 40.717966][ T3616] ? do_raw_spin_lock+0x148/0x360 [ 40.722979][ T3616] ? nilfs_test_metadata_dirty+0x39/0x210 [ 40.728690][ T3616] nilfs_test_metadata_dirty+0x39/0x210 [ 40.734223][ T3616] nilfs_segctor_confirm+0x78/0x2d0 [ 40.739407][ T3616] nilfs_detach_log_writer+0x4c1/0xbd0 [ 40.744850][ T3616] ? __might_sleep+0xc0/0xc0 [ 40.749430][ T3616] ? nilfs_attach_log_writer+0x8f0/0x8f0 [ 40.755048][ T3616] ? hook_sb_delete+0x988/0xab0 [ 40.759883][ T3616] ? wake_bit_function+0x240/0x240 [ 40.764981][ T3616] ? hook_inode_free_security+0xa0/0xa0 [ 40.770513][ T3616] ? clear_inode+0x150/0x150 [ 40.775089][ T3616] ? nilfs_free_inode+0x70/0x70 [ 40.779927][ T3616] nilfs_put_super+0x4b/0x150 [ 40.784589][ T3616] ? nilfs_free_inode+0x70/0x70 [ 40.789425][ T3616] generic_shutdown_super+0x128/0x300 [ 40.794785][ T3616] kill_block_super+0x79/0xd0 [ 40.799446][ T3616] deactivate_locked_super+0xa7/0xf0 [ 40.804715][ T3616] cleanup_mnt+0x4ce/0x560 [ 40.809116][ T3616] ? _raw_spin_unlock_irq+0x1f/0x40 [ 40.814309][ T3616] task_work_run+0x146/0x1c0 [ 40.818887][ T3616] do_exit+0x55e/0x20a0 [ 40.823030][ T3616] ? _raw_spin_unlock_irq+0x1f/0x40 [ 40.828213][ T3616] ? lockdep_hardirqs_on+0x8d/0x130 [ 40.833399][ T3616] ? _raw_spin_unlock_irq+0x2a/0x40 [ 40.838579][ T3616] ? ptrace_notify+0x245/0x340 [ 40.843329][ T3616] ? mm_update_next_owner+0x6d0/0x6d0 [ 40.848686][ T3616] ? do_notify_parent+0xe00/0xe00 [ 40.853698][ T3616] do_group_exit+0x23b/0x2f0 [ 40.858277][ T3616] __x64_sys_exit_group+0x3b/0x40 [ 40.863286][ T3616] do_syscall_64+0x3d/0xb0 [ 40.867688][ T3616] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 40.873565][ T3616] RIP: 0033:0x7f9f27881759 [ 40.877965][ T3616] Code: Unable to access opcode bytes at RIP 0x7f9f2788172f. [ 40.885313][ T3616] RSP: 002b:00007ffc2339d5f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 40.893710][ T3616] RAX: ffffffffffffffda RBX: 00007f9f278fc3f0 RCX: 00007f9f27881759 [ 40.901667][ T3616] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 40.909622][ T3616] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: bb1414ac2339d677 [ 40.917586][ T3616] R10: bb1414ac2339d677 R11: 0000000000000246 R12: 00007f9f278fc3f0 [ 40.925542][ T3616] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 40.933502][ T3616] [ 40.936508][ T3616] [ 40.938815][ T3616] Allocated by task 3616: [ 40.943135][ T3616] ____kasan_kmalloc+0xcd/0x100 [ 40.947972][ T3616] kmem_cache_alloc_trace+0x97/0x310 [ 40.953240][ T3616] nilfs_find_or_create_root+0x142/0x4f0 [ 40.958860][ T3616] nilfs_attach_checkpoint+0xcd/0x4a0 [ 40.964215][ T3616] nilfs_fill_super+0x2e8/0x5d0 [ 40.969049][ T3616] nilfs_mount+0x613/0x9b0 [ 40.973448][ T3616] legacy_get_tree+0xea/0x180 [ 40.978108][ T3616] vfs_get_tree+0x88/0x270 [ 40.982507][ T3616] do_new_mount+0x289/0xad0 [ 40.986993][ T3616] __se_sys_mount+0x2d3/0x3c0 [ 40.991654][ T3616] do_syscall_64+0x3d/0xb0 [ 40.996057][ T3616] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 41.001937][ T3616] [ 41.004246][ T3616] Freed by task 3616: [ 41.008207][ T3616] kasan_set_track+0x3d/0x60 [ 41.012778][ T3616] kasan_set_free_info+0x1f/0x40 [ 41.017702][ T3616] ____kasan_slab_free+0xd8/0x120 [ 41.022710][ T3616] slab_free_freelist_hook+0x12e/0x1a0 [ 41.028151][ T3616] kfree+0xda/0x210 [ 41.031944][ T3616] nilfs_evict_inode+0xe5/0x3d0 [ 41.036777][ T3616] evict+0x2a4/0x620 [ 41.040659][ T3616] evict_inodes+0x658/0x700 [ 41.045146][ T3616] generic_shutdown_super+0x94/0x300 [ 41.050418][ T3616] kill_block_super+0x79/0xd0 [ 41.055079][ T3616] deactivate_locked_super+0xa7/0xf0 [ 41.060352][ T3616] cleanup_mnt+0x4ce/0x560 [ 41.064751][ T3616] task_work_run+0x146/0x1c0 [ 41.069326][ T3616] do_exit+0x55e/0x20a0 [ 41.073463][ T3616] do_group_exit+0x23b/0x2f0 [ 41.078035][ T3616] __x64_sys_exit_group+0x3b/0x40 [ 41.083040][ T3616] do_syscall_64+0x3d/0xb0 [ 41.087443][ T3616] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 41.093320][ T3616] [ 41.095630][ T3616] The buggy address belongs to the object at ffff888021ba5800 [ 41.095630][ T3616] which belongs to the cache kmalloc-256 of size 256 [ 41.109663][ T3616] The buggy address is located 48 bytes inside of [ 41.109663][ T3616] 256-byte region [ffff888021ba5800, ffff888021ba5900) [ 41.122831][ T3616] [ 41.125140][ T3616] The buggy address belongs to the physical page: [ 41.131532][ T3616] page:ffffea000086e900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x21ba4 [ 41.141664][ T3616] head:ffffea000086e900 order:1 compound_mapcount:0 compound_pincount:0 [ 41.149970][ T3616] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 41.157938][ T3616] raw: 00fff00000010200 ffffea0000792980 dead000000000003 ffff888012041b40 [ 41.166504][ T3616] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 41.175064][ T3616] page dumped because: kasan: bad access detected [ 41.181457][ T3616] page_owner tracks the page as allocated [ 41.187151][ T3616] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 6999046105, free_ts 0 [ 41.206753][ T3616] get_page_from_freelist+0x742/0x7c0 [ 41.212115][ T3616] __alloc_pages+0x259/0x560 [ 41.216690][ T3616] alloc_page_interleave+0x22/0x1c0 [ 41.221871][ T3616] alloc_slab_page+0x70/0xf0 [ 41.226450][ T3616] allocate_slab+0x5e/0x520 [ 41.230936][ T3616] ___slab_alloc+0x3ee/0xc40 [ 41.235510][ T3616] kmem_cache_alloc_trace+0x25f/0x310 [ 41.240876][ T3616] bus_add_driver+0xde/0x600 [ 41.245457][ T3616] driver_register+0x2e9/0x3e0 [ 41.250205][ T3616] do_one_initcall+0x1b9/0x3e0 [ 41.254954][ T3616] do_initcall_level+0x168/0x218 [ 41.259886][ T3616] do_initcalls+0x4b/0x8c [ 41.264200][ T3616] kernel_init_freeable+0x3f1/0x57b [ 41.269388][ T3616] kernel_init+0x19/0x2b0 [ 41.273708][ T3616] ret_from_fork+0x1f/0x30 [ 41.278113][ T3616] page_owner free stack trace missing [ 41.283465][ T3616] [ 41.285777][ T3616] Memory state around the buggy address: [ 41.291392][ T3616] ffff888021ba5700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 41.299441][ T3616] ffff888021ba5780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 41.307485][ T3616] >ffff888021ba5800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 41.315525][ T3616] ^ [ 41.321135][ T3616] ffff888021ba5880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 41.329178][ T3616] ffff888021ba5900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 41.337218][ T3616] ================================================================== [ 41.347379][ T3616] Kernel panic - not syncing: panic_on_warn set ... [ 41.353977][ T3616] CPU: 0 PID: 3616 Comm: syz-executor268 Not tainted 6.0.0-rc7-syzkaller-00220-gffb4d94b4314 #0 [ 41.364385][ T3616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 41.374427][ T3616] Call Trace: [ 41.377691][ T3616] [ 41.380612][ T3616] dump_stack_lvl+0x1b1/0x28e [ 41.385279][ T3616] ? fortify_panic+0x13/0x13 [ 41.389857][ T3616] ? panic+0x715/0x715 [ 41.393923][ T3616] ? preempt_schedule_common+0xb7/0xe0 [ 41.399370][ T3616] ? vscnprintf+0x59/0x80 [ 41.403689][ T3616] panic+0x2d6/0x715 [ 41.407574][ T3616] ? fb_is_primary_device+0xcc/0xcc [ 41.412762][ T3616] ? _raw_spin_unlock_irqrestore+0x110/0x120 [ 41.418727][ T3616] ? print_report+0x1b4/0x1f0 [ 41.423399][ T3616] ? nilfs_test_metadata_dirty+0x39/0x210 [ 41.429109][ T3616] end_report+0x91/0xa0 [ 41.433252][ T3616] kasan_report+0xd0/0xf0 [ 41.437565][ T3616] ? do_raw_spin_lock+0x148/0x360 [ 41.442850][ T3616] ? nilfs_test_metadata_dirty+0x39/0x210 [ 41.448560][ T3616] nilfs_test_metadata_dirty+0x39/0x210 [ 41.454098][ T3616] nilfs_segctor_confirm+0x78/0x2d0 [ 41.459286][ T3616] nilfs_detach_log_writer+0x4c1/0xbd0 [ 41.464731][ T3616] ? __might_sleep+0xc0/0xc0 [ 41.469309][ T3616] ? nilfs_attach_log_writer+0x8f0/0x8f0 [ 41.474928][ T3616] ? hook_sb_delete+0x988/0xab0 [ 41.479766][ T3616] ? wake_bit_function+0x240/0x240 [ 41.484863][ T3616] ? hook_inode_free_security+0xa0/0xa0 [ 41.490395][ T3616] ? clear_inode+0x150/0x150 [ 41.494971][ T3616] ? nilfs_free_inode+0x70/0x70 [ 41.499813][ T3616] nilfs_put_super+0x4b/0x150 [ 41.504481][ T3616] ? nilfs_free_inode+0x70/0x70 [ 41.509316][ T3616] generic_shutdown_super+0x128/0x300 [ 41.514674][ T3616] kill_block_super+0x79/0xd0 [ 41.519335][ T3616] deactivate_locked_super+0xa7/0xf0 [ 41.524691][ T3616] cleanup_mnt+0x4ce/0x560 [ 41.529097][ T3616] ? _raw_spin_unlock_irq+0x1f/0x40 [ 41.534281][ T3616] task_work_run+0x146/0x1c0 [ 41.538858][ T3616] do_exit+0x55e/0x20a0 [ 41.542999][ T3616] ? _raw_spin_unlock_irq+0x1f/0x40 [ 41.548182][ T3616] ? lockdep_hardirqs_on+0x8d/0x130 [ 41.553368][ T3616] ? _raw_spin_unlock_irq+0x2a/0x40 [ 41.558548][ T3616] ? ptrace_notify+0x245/0x340 [ 41.563295][ T3616] ? mm_update_next_owner+0x6d0/0x6d0 [ 41.568660][ T3616] ? do_notify_parent+0xe00/0xe00 [ 41.573672][ T3616] do_group_exit+0x23b/0x2f0 [ 41.578249][ T3616] __x64_sys_exit_group+0x3b/0x40 [ 41.583256][ T3616] do_syscall_64+0x3d/0xb0 [ 41.587660][ T3616] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 41.593537][ T3616] RIP: 0033:0x7f9f27881759 [ 41.597938][ T3616] Code: Unable to access opcode bytes at RIP 0x7f9f2788172f. [ 41.605286][ T3616] RSP: 002b:00007ffc2339d5f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 41.613683][ T3616] RAX: ffffffffffffffda RBX: 00007f9f278fc3f0 RCX: 00007f9f27881759 [ 41.621644][ T3616] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 41.629602][ T3616] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: bb1414ac2339d677 [ 41.637557][ T3616] R10: bb1414ac2339d677 R11: 0000000000000246 R12: 00007f9f278fc3f0 [ 41.645521][ T3616] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 41.653483][ T3616] [ 41.656644][ T3616] Kernel Offset: disabled [ 41.660961][ T3616] Rebooting in 86400 seconds..