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-executor617063931 <...> Warning: Permanently added '10.128.0.181' (ED25519) to the list of known hosts. execve("ci-upstream-linux-next-kasan-gce-root/syz-executor617063931", ["ci-upstream-linux-next-kasan-gce-root/syz-executor617063931"], 0x7ffdaab3b100 /* 10 vars */) = 0 brk(NULL) = 0x55555ff2e000 brk(0x55555ff2ed80) = 0x55555ff2ed80 arch_prctl(ARCH_SET_FS, 0x55555ff2e400) = 0 set_tid_address(0x55555ff2e6d0) = 5655 set_robust_list(0x55555ff2e6e0, 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-executor617063931", 4096) = 65 getrandom("\x22\x28\x94\x74\xc1\x7c\x52\x92", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555ff2ed80 brk(0x55555ff4fd80) = 0x55555ff4fd80 brk(0x55555ff50000) = 0x55555ff50000 mprotect(0x7f507afec000, 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("\xb3\x3a\x88\x07\xb0\x4c\xbb\x92", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.9thQF7", 0700) = 0 chmod("./syzkaller.9thQF7", 0777) = 0 chdir("./syzkaller.9thQF7") = 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 5657 attached , child_tidptr=0x55555ff2e6d0) = 5657 [pid 5657] set_robust_list(0x55555ff2e6e0, 24) = 0 [pid 5655] rt_sigprocmask(SIG_SETMASK, [] [pid 5657] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5657] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5657] chdir("./0") = 0 [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5657] setpgid(0, 0) = 0 [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5657] write(3, "1000", 4) = 4 [pid 5657] close(3) = 0 [pid 5657] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5657] write(1, "executing program\n", 18) = 18 [pid 5657] memfd_create("syzkaller", 0) = 3 executing program [pid 5657] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5072a00000 [pid 5657] 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 5657] munmap(0x7f5072a00000, 138412032) = 0 [pid 5657] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5657] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5657] close(3) = 0 [pid 5657] close(4) = 0 [pid 5657] mkdir("./file0", 0777) = 0 [ 89.973296][ T5657] loop0: detected capacity change from 0 to 2048 [ 90.007574][ T5657] NILFS (loop0): invalid segment: Magic number mismatch [ 90.007601][ T5657] NILFS (loop0): trying rollback from an earlier position [pid 5657] mount("/dev/loop0", "./file0", "nilfs2", 0, "") = 0 [pid 5657] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5657] chdir("./file0") = 0 [pid 5657] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 5657] ioctl(4, LOOP_CLR_FD) = 0 [pid 5657] close(4) = 0 [pid 5657] openat(AT_FDCWD, ".", O_RDONLY|O_EXCL) = 4 [ 90.035228][ T5657] NILFS (loop0): recovery complete [ 90.042009][ T5659] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 90.082495][ T5657] NILFS (loop0): nilfs_sufile_do_free: segment 9 is already clean [ 90.083017][ T5657] NILFS (loop0): nilfs_dat_move: invalid vblocknr = 9, [0, 0) [ 90.083047][ T5657] NILFS error (device loop0): nilfs_bmap_assign: broken bmap (inode number=3) [ 90.086732][ T5657] Remounting filesystem read-only [ 90.087185][ T5657] NILFS (loop0): error -5 cleaning segments [ 92.080987][ T2261] cfg80211: failed to load regulatory.db [pid 5657] ioctl(4, NILFS_IOCTL_CLEAN_SEGMENTS, 0x200000001680 [pid 5655] kill(-5657, SIGKILL) = 0 [pid 5655] kill(5657, SIGKILL) = 0 [pid 5657] <... ioctl resumed>) = ? [pid 5657] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5657, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4 /* 0.04 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, 0x55555ff2f7b0 /* 4 entries */, 32768) = 112 [ 94.954091][ T5657] NILFS (loop0): error -30 cleaning segments [ 94.983309][ T5655] VFS: Busy inodes after unmount of loop0 (nilfs2) [ 94.983557][ T5655] ------------[ cut here ]------------ [ 94.983573][ T5655] kernel BUG at fs/super.c:733! [ 94.983610][ T5655] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 95.006823][ T5655] CPU: 0 UID: 0 PID: 5655 Comm: syz-executor617 Not tainted syzkaller #0 PREEMPT(full) [ 95.016559][ T5655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026 [ 95.026623][ T5655] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 [ 95.032801][ T5655] Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 70 c3 eb ff 49 8b 16 48 81 c3 c0 06 00 00 48 c7 c7 e0 4d 40 8c 48 89 de e8 67 08 d2 fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 95.052523][ T5655] RSP: 0018:ffffc900038d7c50 EFLAGS: 00010246 [ 95.058611][ T5655] RAX: 0000000000000030 RBX: ffff8880797666c0 RCX: 4025783da2862900 [ 95.066589][ T5655] RDX: 0000000000000000 RSI: 8000000000000000 RDI: 0000000000000000 [ 95.074675][ T5655] RBP: 1ffff1100f2eccfa R08: ffffc900038d79c7 R09: 1ffff9200071af38 [ 95.082664][ T5655] R10: dffffc0000000000 R11: fffff5200071af39 R12: 0000000000000000 [ 95.090683][ T5655] R13: dffffc0000000000 R14: ffffffff90728ae0 R15: ffff8880797667d0 [ 95.098687][ T5655] FS: 000055555ff2e400(0000) GS:ffff8881233f9000(0000) knlGS:0000000000000000 [ 95.107642][ T5655] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.114246][ T5655] CR2: 00007ffc65e49ff8 CR3: 000000007434e000 CR4: 00000000003526f0 [ 95.122244][ T5655] Call Trace: [ 95.125542][ T5655] [ 95.128555][ T5655] kill_block_super+0x44/0xa0 [ 95.133283][ T5655] deactivate_locked_super+0xbe/0x110 [ 95.138690][ T5655] cleanup_mnt+0x204/0x2a0 [ 95.143146][ T5655] task_work_run+0x1d9/0x260 [ 95.147769][ T5655] ? __pfx_task_work_run+0x10/0x10 [ 95.152903][ T5655] ? path_umount+0x1be/0xc50 [ 95.157535][ T5655] ptrace_notify+0x258/0x290 [ 95.162159][ T5655] ? __pfx_ptrace_notify+0x10/0x10 [ 95.167302][ T5655] ? __x64_sys_umount+0x12a/0x170 [ 95.172345][ T5655] ? __pfx___x64_sys_umount+0x10/0x10 [ 95.177743][ T5655] ptrace_report_syscall_exit+0x2d/0x50 [ 95.183315][ T5655] do_syscall_64+0x4ba/0x530 [ 95.187935][ T5655] ? trace_irq_disable+0x3b/0x140 [ 95.192987][ T5655] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 95.199081][ T5655] ? clear_bhb_loop+0x70/0xc0 [ 95.203781][ T5655] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 95.209692][ T5655] RIP: 0033:0x00007f507af601b7 [ 95.214492][ T5655] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 d4 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 [ 95.234143][ T5655] RSP: 002b:00007ffc65e4a6f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 95.242581][ T5655] RAX: 0000000000000000 RBX: 0000000000000062 RCX: 00007f507af601b7 [ 95.250578][ T5655] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc65e4a7b0 [ 95.258567][ T5655] RBP: 00007ffc65e4a7b0 R08: 00007ffc65e4b7b0 R09: 00000000ffffffff [ 95.266563][ T5655] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc65e4b820 [ 95.274557][ T5655] R13: 000055555ff2f780 R14: 431bde82d7b634db R15: 00007ffc65e4b840 [ 95.282644][ T5655] [ 95.285680][ T5655] Modules linked in: [ 95.289825][ T5655] ---[ end trace 0000000000000000 ]--- [ 95.295468][ T5655] RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 [ 95.295505][ T5655] Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 70 c3 eb ff 49 8b 16 48 81 c3 c0 06 00 00 48 c7 c7 e0 4d 40 8c 48 89 de e8 67 08 d2 fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 95.295523][ T5655] RSP: 0018:ffffc900038d7c50 EFLAGS: 00010246 [ 95.295542][ T5655] RAX: 0000000000000030 RBX: ffff8880797666c0 RCX: 4025783da2862900 [ 95.295557][ T5655] RDX: 0000000000000000 RSI: 8000000000000000 RDI: 0000000000000000 [ 95.295571][ T5655] RBP: 1ffff1100f2eccfa R08: ffffc900038d79c7 R09: 1ffff9200071af38 [ 95.295587][ T5655] R10: dffffc0000000000 R11: fffff5200071af39 R12: 0000000000000000 [ 95.295599][ T5655] R13: dffffc0000000000 R14: ffffffff90728ae0 R15: ffff8880797667d0 [ 95.295613][ T5655] FS: 000055555ff2e400(0000) GS:ffff8881234f9000(0000) knlGS:0000000000000000 [ 95.295630][ T5655] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.295644][ T5655] CR2: 0000561b506b3168 CR3: 000000007434e000 CR4: 00000000003526f0 [ 95.295665][ T5655] Kernel panic - not syncing: Fatal exception [ 95.397293][ T5655] Kernel Offset: disabled [ 95.401633][ T5655] Rebooting in 86400 seconds..