./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1952869455 <...> DUID 00:04:76:8b:f6:84:a4:3b:36:39:6c:68:e7:10:38:dd:b7:2c forked to background, child pid 5491 [ 40.783440][ T5492] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.797742][ T5492] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.145' (ED25519) to the list of known hosts. execve("./syz-executor1952869455", ["./syz-executor1952869455"], 0x7ffe3cd13210 /* 10 vars */) = 0 brk(NULL) = 0x555591422000 brk(0x555591422d00) = 0x555591422d00 arch_prctl(ARCH_SET_FS, 0x555591422380) = 0 set_tid_address(0x555591422650) = 5828 set_robust_list(0x555591422660, 24) = 0 rseq(0x555591422ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1952869455", 4096) = 28 getrandom("\xbe\x43\x3a\x1d\xff\x2e\xc8\x61", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555591422d00 brk(0x555591443d00) = 0x555591443d00 brk(0x555591444000) = 0x555591444000 mprotect(0x7fcd7ff77000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 mkdir("./syzkaller.9lkVDu", 0700) = 0 chmod("./syzkaller.9lkVDu", 0777) = 0 chdir("./syzkaller.9lkVDu") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5829 attached [pid 5829] set_robust_list(0x555591422660, 24) = 0 [pid 5829] chdir("./0" [pid 5828] <... clone resumed>, child_tidptr=0x555591422650) = 5829 [pid 5829] <... chdir resumed>) = 0 [pid 5829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5829] setpgid(0, 0) = 0 [pid 5829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5829] write(3, "1000", 4) = 4 [pid 5829] close(3) = 0 [pid 5829] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5829] write(1, "executing program\n", 18) = 18 [pid 5829] memfd_create("syzkaller", 0) = 3 [pid 5829] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fcd77a00000 [pid 5829] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5829] munmap(0x7fcd77a00000, 138412032) = 0 [pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5829] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5829] close(3) = 0 [pid 5829] close(4) = 0 [pid 5829] mkdir("./file0", 0777) = 0 [pid 5829] mount("/dev/loop0", "./file0", "jfs", MS_NOSUID|MS_RELATIME|MS_STRICTATIME, "iocharset=cp936,quota,errors=remount-ro,errors=remount-ro,nodiscard,noquota,discard=0x00000000000005"...) = 0 [pid 5829] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5829] chdir("./file0") = 0 [pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5829] chdir("./file0") = 0 [pid 5829] openat(AT_FDCWD, "blkio.bfq.io_merged_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 syzkaller login: [ 67.649468][ T5829] loop0: detected capacity change from 0 to 32768 [pid 5829] openat(AT_FDCWD, "devices.list", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 5 [pid 5829] exit_group(0) = ? [pid 5829] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5829, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x5555914236f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 [ 67.817558][ T5828] ================================================================== [ 67.825653][ T5828] BUG: KASAN: user-memory-access in dqput+0x79/0x490 [ 67.832350][ T5828] Read of size 4 at addr 000000000074020f by task syz-executor195/5828 [ 67.840571][ T5828] [ 67.842886][ T5828] CPU: 0 UID: 0 PID: 5828 Comm: syz-executor195 Not tainted 6.14.0-rc3-syzkaller-00295-g27102b38b8ca #0 [ 67.842897][ T5828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 67.842906][ T5828] Call Trace: [ 67.842914][ T5828] [ 67.842920][ T5828] dump_stack_lvl+0x241/0x360 [ 67.842933][ T5828] ? __pfx_dump_stack_lvl+0x10/0x10 [ 67.842941][ T5828] ? __pfx__printk+0x10/0x10 [ 67.842955][ T5828] ? _printk+0xd5/0x120 [ 67.842967][ T5828] print_report+0xe3/0x5b0 [ 67.842981][ T5828] ? __virt_addr_valid+0x58/0x530 [ 67.842995][ T5828] ? dqput+0x79/0x490 [ 67.843008][ T5828] kasan_report+0x143/0x180 [ 67.843020][ T5828] ? dqput+0x79/0x490 [ 67.843032][ T5828] kasan_check_range+0x282/0x290 [ 67.843045][ T5828] dqput+0x79/0x490 [ 67.843057][ T5828] __dquot_drop+0x20b/0x420 [ 67.843070][ T5828] jfs_evict_inode+0xbd/0x440 [ 67.843085][ T5828] ? __pfx_jfs_evict_inode+0x10/0x10 [ 67.843097][ T5828] evict+0x4e8/0x9a0 [ 67.843115][ T5828] ? __pfx_evict+0x10/0x10 [ 67.843126][ T5828] ? do_raw_spin_unlock+0x13c/0x8b0 [ 67.843137][ T5828] ? list_lru_del_obj+0xa8/0x250 [ 67.843152][ T5828] evict_inodes+0x6f6/0x790 [ 67.843162][ T5828] ? __pfx_evict_inodes+0x10/0x10 [ 67.843170][ T5828] ? jfs_sync_fs+0x8a/0xa0 [ 67.843181][ T5828] generic_shutdown_super+0xa0/0x2d0 [ 67.843192][ T5828] kill_block_super+0x44/0x90 [ 67.843204][ T5828] deactivate_locked_super+0xc4/0x130 [ 67.843214][ T5828] cleanup_mnt+0x41f/0x4b0 [ 67.843224][ T5828] ? lockdep_hardirqs_on+0x99/0x150 [ 67.843239][ T5828] task_work_run+0x24f/0x310 [ 67.843253][ T5828] ? __pfx_task_work_run+0x10/0x10 [ 67.843267][ T5828] ? path_umount+0x211/0xf80 [ 67.843279][ T5828] ptrace_notify+0x2d9/0x380 [ 67.843288][ T5828] ? __x64_sys_umount+0x123/0x170 [ 67.843300][ T5828] ? user_path_at+0x44/0x60 [ 67.843311][ T5828] ? __pfx_ptrace_notify+0x10/0x10 [ 67.843319][ T5828] ? kmem_cache_free+0x195/0x410 [ 67.843330][ T5828] ? __x64_sys_umount+0x123/0x170 [ 67.843342][ T5828] syscall_exit_work+0xc7/0x1d0 [ 67.843355][ T5828] syscall_exit_to_user_mode+0x24a/0x340 [ 67.843367][ T5828] do_syscall_64+0x100/0x230 [ 67.843379][ T5828] ? clear_bhb_loop+0x35/0x90 [ 67.843392][ T5828] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 67.843404][ T5828] RIP: 0033:0x7fcd7fefe407 [ 67.843417][ T5828] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 67.843424][ T5828] RSP: 002b:00007ffc5f71e678 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 67.843435][ T5828] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fcd7fefe407 [ 67.843441][ T5828] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc5f71e730 [ 67.843447][ T5828] RBP: 00007ffc5f71e730 R08: 0000000000000000 R09: 0000000000000000 [ 67.843452][ T5828] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc5f71f7a0 [ 67.843458][ T5828] R13: 00005555914236c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 67.843468][ T5828] [ 67.843471][ T5828] ================================================================== [ 68.142758][ T5828] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 68.149950][ T5828] CPU: 0 UID: 0 PID: 5828 Comm: syz-executor195 Not tainted 6.14.0-rc3-syzkaller-00295-g27102b38b8ca #0 [ 68.161048][ T5828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 68.171088][ T5828] Call Trace: [ 68.174362][ T5828] [ 68.177279][ T5828] dump_stack_lvl+0x241/0x360 [ 68.181946][ T5828] ? __pfx_dump_stack_lvl+0x10/0x10 [ 68.187131][ T5828] ? __pfx__printk+0x10/0x10 [ 68.191713][ T5828] ? lock_release+0xbf/0xa30 [ 68.196294][ T5828] ? vscnprintf+0x5d/0x90 [ 68.200609][ T5828] panic+0x349/0x880 [ 68.204499][ T5828] ? check_panic_on_warn+0x21/0xb0 [ 68.209600][ T5828] ? __pfx_panic+0x10/0x10 [ 68.214003][ T5828] ? mark_lock+0x9a/0x360 [ 68.218325][ T5828] ? _raw_spin_unlock_irqrestore+0xd8/0x140 [ 68.224205][ T5828] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 68.230080][ T5828] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 68.236401][ T5828] ? print_report+0xe3/0x5b0 [ 68.240985][ T5828] check_panic_on_warn+0x86/0xb0 [ 68.245915][ T5828] ? dqput+0x79/0x490 [ 68.249887][ T5828] end_report+0x77/0x160 [ 68.254125][ T5828] kasan_report+0x154/0x180 [ 68.258620][ T5828] ? dqput+0x79/0x490 [ 68.262595][ T5828] kasan_check_range+0x282/0x290 [ 68.267521][ T5828] dqput+0x79/0x490 [ 68.271325][ T5828] __dquot_drop+0x20b/0x420 [ 68.275818][ T5828] jfs_evict_inode+0xbd/0x440 [ 68.280481][ T5828] ? __pfx_jfs_evict_inode+0x10/0x10 [ 68.285759][ T5828] evict+0x4e8/0x9a0 [ 68.289643][ T5828] ? __pfx_evict+0x10/0x10 [ 68.294047][ T5828] ? do_raw_spin_unlock+0x13c/0x8b0 [ 68.299238][ T5828] ? list_lru_del_obj+0xa8/0x250 [ 68.304169][ T5828] evict_inodes+0x6f6/0x790 [ 68.308658][ T5828] ? __pfx_evict_inodes+0x10/0x10 [ 68.313666][ T5828] ? jfs_sync_fs+0x8a/0xa0 [ 68.318069][ T5828] generic_shutdown_super+0xa0/0x2d0 [ 68.323351][ T5828] kill_block_super+0x44/0x90 [ 68.328014][ T5828] deactivate_locked_super+0xc4/0x130 [ 68.333371][ T5828] cleanup_mnt+0x41f/0x4b0 [ 68.337770][ T5828] ? lockdep_hardirqs_on+0x99/0x150 [ 68.342957][ T5828] task_work_run+0x24f/0x310 [ 68.347538][ T5828] ? __pfx_task_work_run+0x10/0x10 [ 68.352639][ T5828] ? path_umount+0x211/0xf80 [ 68.357219][ T5828] ptrace_notify+0x2d9/0x380 [ 68.361796][ T5828] ? __x64_sys_umount+0x123/0x170 [ 68.366805][ T5828] ? user_path_at+0x44/0x60 [ 68.371292][ T5828] ? __pfx_ptrace_notify+0x10/0x10 [ 68.376385][ T5828] ? kmem_cache_free+0x195/0x410 [ 68.381310][ T5828] ? __x64_sys_umount+0x123/0x170 [ 68.386325][ T5828] syscall_exit_work+0xc7/0x1d0 [ 68.391168][ T5828] syscall_exit_to_user_mode+0x24a/0x340 [ 68.396788][ T5828] do_syscall_64+0x100/0x230 [ 68.401386][ T5828] ? clear_bhb_loop+0x35/0x90 [ 68.406053][ T5828] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.411940][ T5828] RIP: 0033:0x7fcd7fefe407 [ 68.416341][ T5828] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 68.435945][ T5828] RSP: 002b:00007ffc5f71e678 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 68.444347][ T5828] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fcd7fefe407 [ 68.452304][ T5828] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc5f71e730 [ 68.460265][ T5828] RBP: 00007ffc5f71e730 R08: 0000000000000000 R09: 0000000000000000 [ 68.468220][ T5828] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc5f71f7a0 [ 68.476177][ T5828] R13: 00005555914236c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 68.484138][ T5828] [ 68.487373][ T5828] Kernel Offset: disabled [ 68.491679][ T5828] Rebooting in 86400 seconds..