./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2452538943 <...> [ 91.959049][ T10] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.27' (ED25519) to the list of known hosts. execve("./syz-executor2452538943", ["./syz-executor2452538943"], 0x7ffcd7d86c20 /* 10 vars */) = 0 brk(NULL) = 0x555568fbd000 brk(0x555568fbdd00) = 0x555568fbdd00 arch_prctl(ARCH_SET_FS, 0x555568fbd380) = 0 set_tid_address(0x555568fbd650) = 5835 set_robust_list(0x555568fbd660, 24) = 0 rseq(0x555568fbdca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2452538943", 4096) = 28 getrandom("\x0a\x60\x2d\x6a\x18\x86\x0a\xf8", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568fbdd00 brk(0x555568fded00) = 0x555568fded00 brk(0x555568fdf000) = 0x555568fdf000 mprotect(0x7f09288a6000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 mkdir("./syzkaller.uRrDHZ", 0700) = 0 chmod("./syzkaller.uRrDHZ", 0777) = 0 chdir("./syzkaller.uRrDHZ") = 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 5836 attached , child_tidptr=0x555568fbd650) = 5836 [pid 5836] set_robust_list(0x555568fbd660, 24) = 0 [pid 5836] chdir("./0") = 0 [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5836] setpgid(0, 0) = 0 [pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5836] write(3, "1000", 4) = 4 [pid 5836] close(3) = 0 [pid 5836] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5836] write(1, "executing program\n", 18executing program ) = 18 [pid 5836] memfd_create("syzkaller", 0) = 3 [pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0920200000 [pid 5836] 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 5836] munmap(0x7f0920200000, 138412032) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5836] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5836] close(3) = 0 [pid 5836] close(4) = 0 [pid 5836] mkdir("./file1", 0777) = 0 [pid 5836] mount("/dev/loop0", "./file1", "jfs", MS_NOSUID|MS_NODEV|MS_POSIXACL|MS_STRICTATIME, "iocharset=koi8-u,discard=0x0000000000000004,iocharset=iso8859-9,errors=continue,iocharset=koi8-ru,er"...) = 0 [pid 5836] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5836] chdir("./file1") = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5836] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 4 [pid 5836] mknod("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", S_IFIFO|000) = 0 [ 95.775748][ T5836] loop0: detected capacity change from 0 to 32768 [pid 5836] rename("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", "./file1") = -1 EIO (Input/output error) [pid 5836] exit_group(0) = ? [pid 5836] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5836, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [ 95.835625][ T5836] read_mapping_page failed! [ 95.840964][ T5836] ERROR: (device loop0): txCommit: [ 95.840964][ T5836] [ 95.850241][ T5836] ERROR: (device loop0): remounting filesystem as read-only 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, 0x555568fbe6f0 /* 4 entries */, 32768) = 112 [ 95.909561][ T5835] ------------[ cut here ]------------ [ 95.915216][ T5835] kernel BUG at fs/inode.c:753! [ 95.920203][ T5835] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 95.926460][ T5835] CPU: 0 UID: 0 PID: 5835 Comm: syz-executor245 Not tainted 6.15.0-syzkaller-13743-g8630c59e9936 #0 PREEMPT(full) [ 95.938542][ T5835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 95.948606][ T5835] RIP: 0010:clear_inode+0x169/0x190 [ 95.953907][ T5835] Code: 4c 89 f7 e8 59 20 e8 ff e9 60 ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 7c c0 4c 89 f7 e8 2f 21 e8 ff eb b6 e8 18 d4 86 ff 90 <0f> 0b e8 10 d4 86 ff 90 0f 0b e8 08 d4 86 ff 90 0f 0b e8 00 d4 86 [ 95.973524][ T5835] RSP: 0018:ffffc9000434f870 EFLAGS: 00010093 [ 95.979595][ T5835] RAX: ffffffff823979d8 RBX: ffff8880789cb248 RCX: ffff888031d2da00 [ 95.987571][ T5835] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 95.995539][ T5835] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 96.003506][ T5835] R10: dffffc0000000000 R11: fffff52000869eec R12: dffffc0000000000 [ 96.011481][ T5835] R13: dffffc0000000000 R14: ffff8880789cb470 R15: 0000000000000001 [ 96.019454][ T5835] FS: 0000555568fbd380(0000) GS:ffff888125c84000(0000) knlGS:0000000000000000 [ 96.028384][ T5835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.034969][ T5835] CR2: 00007fff7bf0eff8 CR3: 0000000077dfa000 CR4: 00000000003526f0 [ 96.043063][ T5835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 96.051062][ T5835] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 96.059047][ T5835] Call Trace: [ 96.062345][ T5835] [ 96.065283][ T5835] ? __pfx_jfs_evict_inode+0x10/0x10 [ 96.070596][ T5835] jfs_evict_inode+0xb1/0x440 [ 96.075280][ T5835] ? evict+0x4f8/0x9c0 [ 96.079359][ T5835] ? __pfx_jfs_evict_inode+0x10/0x10 [ 96.084735][ T5835] evict+0x504/0x9c0 [ 96.088637][ T5835] ? __pfx_evict+0x10/0x10 [ 96.093058][ T5835] ? do_raw_spin_unlock+0x122/0x240 [ 96.098261][ T5835] ? _raw_spin_unlock+0x28/0x50 [ 96.103218][ T5835] ? iput+0x6d8/0x9d0 [ 96.107215][ T5835] __dentry_kill+0x209/0x660 [ 96.111814][ T5835] ? shrink_kill+0x8d/0x2c0 [ 96.116325][ T5835] shrink_kill+0xa9/0x2c0 [ 96.120659][ T5835] shrink_dentry_list+0x2e0/0x5e0 [ 96.125691][ T5835] shrink_dcache_parent+0xa1/0x2c0 [ 96.130800][ T5835] ? __pfx_shrink_dcache_parent+0x10/0x10 [ 96.136519][ T5835] ? call_rcu+0x6dd/0x990 [ 96.140862][ T5835] do_one_tree+0x23/0xe0 [ 96.145110][ T5835] shrink_dcache_for_umount+0xa0/0x170 [ 96.150571][ T5835] generic_shutdown_super+0x67/0x2c0 [ 96.155860][ T5835] kill_block_super+0x44/0x90 [ 96.160552][ T5835] deactivate_locked_super+0xb9/0x130 [ 96.165921][ T5835] cleanup_mnt+0x425/0x4c0 [ 96.170335][ T5835] ? lockdep_hardirqs_on+0x9c/0x150 [ 96.175542][ T5835] task_work_run+0x1d1/0x260 [ 96.180141][ T5835] ? __pfx_task_work_run+0x10/0x10 [ 96.185256][ T5835] ? __x64_sys_umount+0x122/0x160 [ 96.190286][ T5835] ptrace_notify+0x281/0x2c0 [ 96.194881][ T5835] ? __pfx_ptrace_notify+0x10/0x10 [ 96.199997][ T5835] ? __x64_sys_umount+0x122/0x160 [ 96.205024][ T5835] ? __pfx___x64_sys_umount+0x10/0x10 [ 96.210401][ T5835] syscall_exit_work+0xc6/0x1d0 [ 96.215261][ T5835] do_syscall_64+0x2ad/0x3b0 [ 96.219856][ T5835] ? lockdep_hardirqs_on+0x9c/0x150 [ 96.225063][ T5835] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 96.231132][ T5835] ? clear_bhb_loop+0x60/0xb0 [ 96.235820][ T5835] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 96.241799][ T5835] RIP: 0033:0x7f092882d5c7 [ 96.246232][ T5835] 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 [ 96.265847][ T5835] RSP: 002b:00007fff7bf0f7c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 96.274268][ T5835] RAX: 0000000000000000 RBX: 00000000000174ee RCX: 00007f092882d5c7 [ 96.282242][ T5835] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff7bf0f880 [ 96.290221][ T5835] RBP: 00007fff7bf0f880 R08: 0000000000000000 R09: 0000000000000000 [ 96.298196][ T5835] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff7bf108f0 [ 96.306181][ T5835] R13: 0000555568fbe6c0 R14: 431bde82d7b634db R15: 00007fff7bf10910 [ 96.314164][ T5835] [ 96.317189][ T5835] Modules linked in: [ 96.321096][ T5835] ---[ end trace 0000000000000000 ]--- [ 96.326640][ T5835] RIP: 0010:clear_inode+0x169/0x190 [ 96.331847][ T5835] Code: 4c 89 f7 e8 59 20 e8 ff e9 60 ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 7c c0 4c 89 f7 e8 2f 21 e8 ff eb b6 e8 18 d4 86 ff 90 <0f> 0b e8 10 d4 86 ff 90 0f 0b e8 08 d4 86 ff 90 0f 0b e8 00 d4 86 [ 96.351541][ T5835] RSP: 0018:ffffc9000434f870 EFLAGS: 00010093 [ 96.357613][ T5835] RAX: ffffffff823979d8 RBX: ffff8880789cb248 RCX: ffff888031d2da00 [ 96.365587][ T5835] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 96.373645][ T5835] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 96.381623][ T5835] R10: dffffc0000000000 R11: fffff52000869eec R12: dffffc0000000000 [ 96.389595][ T5835] R13: dffffc0000000000 R14: ffff8880789cb470 R15: 0000000000000001 [ 96.397566][ T5835] FS: 0000555568fbd380(0000) GS:ffff888125c84000(0000) knlGS:0000000000000000 [ 96.406512][ T5835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.413106][ T5835] CR2: 00007fff7bf0eff8 CR3: 0000000077dfa000 CR4: 00000000003526f0 [ 96.421093][ T5835] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 96.429068][ T5835] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 96.437042][ T5835] Kernel panic - not syncing: Fatal exception [ 96.443502][ T5835] Kernel Offset: disabled [ 96.447833][ T5835] Rebooting in 86400 seconds..