ci-upstream-linux-next-kasan-gce-root/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-linux-next-kasan-gce-root/syz-executor4202902607 <...> Warning: Permanently added '10.128.0.80' (ED25519) to the list of known hosts. execve("ci-upstream-linux-next-kasan-gce-root/syz-executor4202902607", ["ci-upstream-linux-next-kasan-gce-root/syz-executor4202902607"], 0x7ffebd0356d0 /* 10 vars */) = 0 brk(NULL) = 0x55557303c000 brk(0x55557303cd80) = 0x55557303cd80 arch_prctl(ARCH_SET_FS, 0x55557303c400) = 0 set_tid_address(0x55557303c6d0) = 5617 set_robust_list(0x55557303c6e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-linux-next-kasan-gce-root/syz-executor4202902607", 4096) = 66 getrandom("\x64\x61\x13\xa3\x4f\x4d\x1c\x2e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557303cd80 brk(0x55557305dd80) = 0x55557305dd80 brk(0x55557305e000) = 0x55557305e000 mprotect(0x7f3a0cce7000, 20480, 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 getrandom("\x25\x1e\xb6\x50\x9d\xed\x55\xba", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.zYwJPN", 0700) = 0 chmod("./syzkaller.zYwJPN", 0777) = 0 chdir("./syzkaller.zYwJPN") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-linux-next-kasan-gce-root/strace-static-x86_64: Process 5618 attached , child_tidptr=0x55557303c6d0) = 5618 [pid 5617] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5618] set_robust_list(0x55557303c6e0, 24) = 0 [pid 5618] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5618] chdir("./0") = 0 [pid 5618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5618] setpgid(0, 0) = 0 [pid 5618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5618] write(3, "1000", 4) = 4 [pid 5618] close(3) = 0 [pid 5618] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 5618] write(1, "executing program\n", 18) = 18 [pid 5618] memfd_create("syzkaller", 0) = 3 [pid 5618] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3a04800000 [pid 5618] 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"..., 1048576) = 1048576 [pid 5618] munmap(0x7f3a04800000, 138412032) = 0 [pid 5618] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5618] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5618] close(3) = 0 [pid 5618] close(4) = 0 [pid 5618] mkdir("./file0", 0777) = 0 [ 72.285793][ T5618] loop0: detected capacity change from 0 to 2048 [ 72.322935][ T5618] NILFS (loop0): invalid segment: Magic number mismatch [pid 5618] mount("/dev/loop0", "./file0", "nilfs2", 0, "") = 0 [pid 5618] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5618] chdir("./file0") = 0 [pid 5618] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5618] ioctl(4, LOOP_CLR_FD) = 0 [pid 5618] close(4) = 0 [pid 5618] openat(AT_FDCWD, ".", O_RDONLY|O_EXCL) = 4 [ 72.322962][ T5618] NILFS (loop0): trying rollback from an earlier position [ 72.335827][ T5618] NILFS (loop0): recovery complete [ 72.341311][ T5620] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 72.370312][ T5618] NILFS (loop0): nilfs_sufile_do_free: segment 9 is already clean [ 72.370596][ T5618] NILFS (loop0): nilfs_dat_move: invalid vblocknr = 9, [0, 0) [ 72.370613][ T5618] NILFS error (device loop0): nilfs_bmap_assign: broken bmap (inode number=3) [ 72.372206][ T5618] Remounting filesystem read-only [ 72.372313][ T5618] NILFS (loop0): error -5 cleaning segments [pid 5618] ioctl(4, NILFS_IOCTL_CLEAN_SEGMENTS, 0x200000000040 [pid 5617] kill(-5618, SIGKILL) = 0 [pid 5617] kill(5618, SIGKILL) = 0 [pid 5618] <... ioctl resumed>) = ? [pid 5618] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5618, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=1 /* 0.01 s */} --- umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x55557303d7b0 /* 4 entries */, 32768) = 112 [ 77.260322][ T5618] NILFS (loop0): error -30 cleaning segments [ 77.301741][ T5617] VFS: Busy inodes after unmount of loop0 (nilfs2) [ 77.301900][ T5617] ------------[ cut here ]------------ [ 77.301906][ T5617] kernel BUG at fs/super.c:761! [ 77.301935][ T5617] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 77.324983][ T5617] CPU: 0 UID: 0 PID: 5617 Comm: syz-executor420 Not tainted syzkaller #0 PREEMPT(full) [ 77.334686][ T5617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 77.344730][ T5617] RIP: 0010:generic_shutdown_super+0x2c7/0x2d0 [ 77.350889][ T5617] Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 73 d0 eb ff 49 8b 16 48 81 c3 a8 06 00 00 48 c7 c7 e0 fb 1f 8c 48 89 de e8 fa 30 d9 fe 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 77.370503][ T5617] RSP: 0018:ffffc900039bfc50 EFLAGS: 00010246 [ 77.376582][ T5617] RAX: 0000000000000030 RBX: ffff88807f4de6a8 RCX: 2a634b896de1df00 [ 77.384542][ T5617] RDX: 0000000000000000 RSI: 8000000000000000 RDI: 0000000000000000 [ 77.392504][ T5617] RBP: 1ffff1100fe9bcf7 R08: ffffc900039bf9c7 R09: 1ffff92000737f38 [ 77.400464][ T5617] R10: dffffc0000000000 R11: fffff52000737f39 R12: 0000000000000000 [ 77.408420][ T5617] R13: dffffc0000000000 R14: ffffffff8f3172a0 R15: ffff88807f4de7b8 [ 77.416376][ T5617] FS: 000055557303c400(0000) GS:ffff888124cbd000(0000) knlGS:0000000000000000 [ 77.425290][ T5617] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.431856][ T5617] CR2: 00005555730457b8 CR3: 00000000701d4000 CR4: 00000000003526f0 [ 77.439814][ T5617] Call Trace: [ 77.443084][ T5617] [ 77.446002][ T5617] kill_block_super+0x44/0xa0 [ 77.450766][ T5617] deactivate_locked_super+0xbe/0x110 [ 77.456146][ T5617] cleanup_mnt+0x3d3/0x460 [ 77.460563][ T5617] task_work_run+0x1d9/0x260 [ 77.465147][ T5617] ? __pfx_task_work_run+0x10/0x10 [ 77.470251][ T5617] ? path_umount+0x1be/0xc60 [ 77.474835][ T5617] ptrace_notify+0x258/0x290 [ 77.479856][ T5617] ? __pfx_ptrace_notify+0x10/0x10 [ 77.484960][ T5617] ? __x64_sys_umount+0x12a/0x170 [ 77.489975][ T5617] ? __pfx___x64_sys_umount+0x10/0x10 [ 77.495335][ T5617] ptrace_report_syscall_exit+0x2d/0x50 [ 77.500869][ T5617] do_syscall_64+0x4a0/0x520 [ 77.505456][ T5617] ? trace_irq_disable+0x3b/0x140 [ 77.510467][ T5617] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.516523][ T5617] ? clear_bhb_loop+0x70/0xc0 [ 77.521189][ T5617] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.527079][ T5617] RIP: 0033:0x7f3a0cc5b1f7 [ 77.531495][ T5617] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 94 18 09 00 00 00 00 00 eb 96 e8 81 05 00 00 90 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 d8 ff ff ff f7 d8 64 89 02 b8 [ 77.551089][ T5617] RSP: 002b:00007fff4369df78 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 77.559489][ T5617] RAX: 0000000000000000 RBX: 0000000000000062 RCX: 00007f3a0cc5b1f7 [ 77.567457][ T5617] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff4369e030 [ 77.575413][ T5617] RBP: 00007fff4369e030 R08: 00007fff4369f030 R09: 00000000ffffffff [ 77.583369][ T5617] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fff4369f0a0 [ 77.591326][ T5617] R13: 000055557303d780 R14: 431bde82d7b634db R15: 00007fff4369f0c0 [ 77.599291][ T5617] [ 77.602303][ T5617] Modules linked in: [ 77.606846][ T5617] ---[ end trace 0000000000000000 ]--- [ 77.612983][ T5617] RIP: 0010:generic_shutdown_super+0x2c7/0x2d0 [ 77.613011][ T5617] Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 73 d0 eb ff 49 8b 16 48 81 c3 a8 06 00 00 48 c7 c7 e0 fb 1f 8c 48 89 de e8 fa 30 d9 fe 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 77.613035][ T5617] RSP: 0018:ffffc900039bfc50 EFLAGS: 00010246 [ 77.613051][ T5617] RAX: 0000000000000030 RBX: ffff88807f4de6a8 RCX: 2a634b896de1df00 [ 77.613064][ T5617] RDX: 0000000000000000 RSI: 8000000000000000 RDI: 0000000000000000 [ 77.613075][ T5617] RBP: 1ffff1100fe9bcf7 R08: ffffc900039bf9c7 R09: 1ffff92000737f38 [ 77.613088][ T5617] R10: dffffc0000000000 R11: fffff52000737f39 R12: 0000000000000000 [ 77.613099][ T5617] R13: dffffc0000000000 R14: ffffffff8f3172a0 R15: ffff88807f4de7b8 [ 77.613111][ T5617] FS: 000055557303c400(0000) GS:ffff888124cbd000(0000) knlGS:0000000000000000 [ 77.613126][ T5617] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.613138][ T5617] CR2: 00005555730457b8 CR3: 00000000701d4000 CR4: 00000000003526f0 [ 77.613156][ T5617] Kernel panic - not syncing: Fatal exception [ 77.714498][ T5617] Kernel Offset: disabled [ 77.718820][ T5617] Rebooting in 86400 seconds..