ci2-android-6-1/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-1/syz-executor3444256943 <...> Warning: Permanently added '10.128.1.90' (ED25519) to the list of known hosts. execve("ci2-android-6-1/syz-executor3444256943", ["ci2-android-6-1/syz-executor3444256943"], 0x7fffc63e47b0 /* 10 vars */) = 0 brk(NULL) = 0x555569b02000 brk(0x555569b02d40) = 0x555569b02d40 arch_prctl(ARCH_SET_FS, 0x555569b023c0) = 0 set_tid_address(0x555569b02690) = 305 set_robust_list(0x555569b026a0, 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}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-6-1/syz-executor3444256943", 4096) = 44 getrandom("\xca\x7b\x34\xff\xdc\xd5\x08\x66", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555569b02d40 brk(0x555569b23d40) = 0x555569b23d40 brk(0x555569b24000) = 0x555569b24000 mprotect(0x7f6537c25000, 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("\x12\xdb\xdf\xe4\x29\x3e\x88\x20", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.YIfoI7", 0700) = 0 chmod("./syzkaller.YIfoI7", 0777) = 0 chdir("./syzkaller.YIfoI7") = 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 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555569b02690) = 306 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-6-1/strace-static-x86_64: Process 306 attached [pid 306] set_robust_list(0x555569b026a0, 24) = 0 [pid 306] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 306] chdir("./0") = 0 [pid 306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 306] setpgid(0, 0) = 0 [pid 306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 306] write(3, "1000", 4) = 4 [pid 306] close(3) = 0 [pid 306] symlink("/dev/binderfs", "./binderfs") = 0 [pid 306] write(1, "executing program\n", 18) = 18 [pid 306] memfd_create("syzkaller", 0) = 3 [pid 306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f652f774000 [pid 306] 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"..., 262144) = 262144 [pid 306] munmap(0x7f652f774000, 138412032) = 0 [pid 306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 executing program [ 24.943029][ T28] audit: type=1400 audit(1790322712.240:64): avc: denied { execmem } for pid=305 comm="syz-executor344" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.963183][ T28] audit: type=1400 audit(1790322712.240:65): avc: denied { read write } for pid=305 comm="syz-executor344" name="loop0" dev="devtmpfs" ino=118 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 306] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 306] close(3) = 0 [pid 306] close(4) = 0 [pid 306] mkdir("./file0", 0777) = 0 [ 24.976709][ T306] loop0: detected capacity change from 0 to 512 [ 24.988228][ T28] audit: type=1400 audit(1790322712.240:66): avc: denied { open } for pid=305 comm="syz-executor344" path="/dev/loop0" dev="devtmpfs" ino=118 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.018216][ T28] audit: type=1400 audit(1790322712.240:67): avc: denied { ioctl } for pid=305 comm="syz-executor344" path="/dev/loop0" dev="devtmpfs" ino=118 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.020271][ T306] EXT4-fs error (device loop0): ext4_xattr_inode_iget:401: comm syz-executor344: inode #1: comm syz-executor344: iget: illegal inode # [ 25.043945][ T28] audit: type=1400 audit(1790322712.290:68): avc: denied { mounton } for pid=306 comm="syz-executor344" path="/root/syzkaller.YIfoI7/0/file0" dev="sda1" ino=2028 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 306] mount("/dev/loop0", "./file0", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_I_VERSION|0x200, ",errors=continue") = 0 [pid 306] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 306] chdir("./file0") = 0 [pid 306] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 306] ioctl(4, LOOP_CLR_FD) = 0 [pid 306] close(4) = 0 [pid 306] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0 [pid 306] exit_group(0) = ? [pid 306] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=306, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} --- restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 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, 0x555569b03750 /* 4 entries */, 32768) = 112 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0755, st_size=1024, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [ 25.058640][ T306] EXT4-fs error (device loop0): ext4_xattr_inode_iget:406: comm syz-executor344: error while reading EA inode 1 err=-117 [ 25.094855][ T306] EXT4-fs (loop0): 1 orphan inode deleted [ 25.100622][ T306] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [ 25.109236][ T28] audit: type=1400 audit(1790322712.410:69): avc: denied { mount } for pid=306 comm="syz-executor344" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 fstat(4, {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0 getdents64(4, 0x555569b0b790 /* 5 entries */, 32768) = 144 umount2("./0/file0/lost+found", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0/lost+found", {st_mode=S_IFBLK|S_ISVTX|0614, st_rdev=makedev(0, 0xe), ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/file0/lost+found") = 0 umount2("./0/file0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0/file1", {st_mode=S_IFDIR|0700, st_size=60, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/file0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 fstat(5, {st_mode=S_IFDIR|0700, st_size=60, ...}) = 0 getdents64(5, 0x555569b137d0 /* 2 entries */, 32768) = 48 getdents64(5, 0x555569b137d0 /* 0 entries */, 32768) = 0 close(5) = 0 rmdir("./0/file0/file1") = 0 [ 25.118930][ T305] EXT4-fs error (device loop0): htree_dirblock_to_tree:1112: inode #2: block 13: comm syz-executor344: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0 [ 25.131882][ T28] audit: type=1400 audit(1790322712.410:70): avc: denied { mounton } for pid=306 comm="syz-executor344" path="/root/syzkaller.YIfoI7/0/file0/file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 25.176708][ T28] audit: type=1400 audit(1790322712.410:71): avc: denied { write } for pid=306 comm="syz-executor344" name="file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 25.176843][ T305] ------------[ cut here ]------------ [ 25.199119][ T28] audit: type=1400 audit(1790322712.410:72): avc: denied { add_name } for pid=306 comm="syz-executor344" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 25.204416][ T305] kernel BUG at fs/namei.c:2962! [ 25.225442][ T28] audit: type=1400 audit(1790322712.410:73): avc: denied { create } for pid=306 comm="syz-executor344" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=dir permissive=1 [ 25.230504][ T305] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 25.256683][ T305] CPU: 1 PID: 305 Comm: syz-executor344 Not tainted syzkaller #0 [ 25.264374][ T305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 25.274403][ T305] RIP: 0010:may_delete+0x727/0x730 [ 25.279522][ T305] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 82 fe ff ff 48 89 df e8 4a dd f3 ff e9 75 fe ff ff e8 40 52 ae ff 0f 0b e8 39 52 ae ff <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 21 52 [ 25.299201][ T305] RSP: 0018:ffffc90000df7b58 EFLAGS: 00010293 [ 25.305258][ T305] RAX: ffffffff81c317e7 RBX: ffff888122dc1440 RCX: ffff88810f8c3cc0 [ 25.313212][ T305] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.321165][ T305] RBP: ffffc90000df7bb0 R08: 0000000000000003 R09: 0000000000000004 [ 25.329114][ T305] R10: dffffc0000000000 R11: fffff520001bef48 R12: 1ffff110245b8288 [ 25.337064][ T305] R13: 0000000000000001 R14: ffff888122dc1250 R15: dffffc0000000000 [ 25.345015][ T305] FS: 0000555569b023c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 25.353925][ T305] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.360487][ T305] CR2: 0000555569b1b7d8 CR3: 000000010ff31000 CR4: 00000000003506a0 [ 25.368458][ T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.376411][ T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.384367][ T305] Call Trace: [ 25.387624][ T305] [ 25.390545][ T305] vfs_rmdir+0x2f/0x4f0 [ 25.394688][ T305] ? incfs_kill_sb+0xec/0x210 [ 25.399353][ T305] incfs_kill_sb+0xfe/0x210 [ 25.403845][ T305] deactivate_locked_super+0xb5/0x120 [ 25.409204][ T305] deactivate_super+0xaf/0xe0 [ 25.413865][ T305] cleanup_mnt+0x45e/0x4e0 [ 25.418268][ T305] __cleanup_mnt+0x19/0x20 [ 25.422660][ T305] task_work_run+0x1e1/0x250 [ 25.427234][ T305] ? __cfi_task_work_run+0x10/0x10 [ 25.432336][ T305] ? path_umount+0x345/0xf60 [ 25.436912][ T305] ? __kasan_slab_free+0x11/0x20 [ 25.441832][ T305] ptrace_notify+0x23f/0x270 [ 25.446405][ T305] ? __cfi_path_umount+0x10/0x10 [ 25.451330][ T305] ? __cfi_ptrace_notify+0x10/0x10 [ 25.456429][ T305] ? user_path_at_empty+0x162/0x1c0 [ 25.461611][ T305] ? __x64_sys_umount+0x12d/0x170 [ 25.466618][ T305] ? __cfi___x64_sys_umount+0x10/0x10 [ 25.471972][ T305] ? fpregs_restore_userregs+0x128/0x260 [ 25.477591][ T305] syscall_exit_work+0x84/0x140 [ 25.482429][ T305] syscall_exit_to_user_mode_prepare+0x1c/0x20 [ 25.488564][ T305] syscall_exit_to_user_mode+0xd/0x30 [ 25.493921][ T305] do_syscall_64+0x58/0xa0 [ 25.498326][ T305] ? clear_bhb_loop+0x30/0x80 [ 25.502983][ T305] ? clear_bhb_loop+0x30/0x80 [ 25.507640][ T305] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.513514][ T305] RIP: 0033:0x7f6537b990b7 [ 25.517909][ T305] Code: bf 41 4d 56 53 b8 9d 00 00 00 0f 05 83 f8 ea 75 a2 c7 05 d4 19 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 [ 25.537506][ T305] RSP: 002b:00007ffff9ce5f88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 25.545903][ T305] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6537b990b7 [ 25.553854][ T305] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff9ce6040 [ 25.561805][ T305] RBP: 00007ffff9ce6040 R08: 00007ffff9ce7040 R09: 00000000ffffffff [ 25.569755][ T305] R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffff9ce7130 [ 25.577710][ T305] R13: 0000555569b0b760 R14: 0000000000000001 R15: 431bde82d7b634db [ 25.585665][ T305] [ 25.588663][ T305] Modules linked in: [ 25.593213][ T305] ---[ end trace 0000000000000000 ]--- [ 25.598687][ T305] RIP: 0010:may_delete+0x727/0x730 [ 25.603798][ T305] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 82 fe ff ff 48 89 df e8 4a dd f3 ff e9 75 fe ff ff e8 40 52 ae ff 0f 0b e8 39 52 ae ff <0f> 0b 0f 1f 80 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 21 52 [ 25.623426][ T305] RSP: 0018:ffffc90000df7b58 EFLAGS: 00010293 [ 25.629513][ T305] RAX: ffffffff81c317e7 RBX: ffff888122dc1440 RCX: ffff88810f8c3cc0 [ 25.637473][ T305] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.645449][ T305] RBP: ffffc90000df7bb0 R08: 0000000000000003 R09: 0000000000000004 [ 25.653434][ T305] R10: dffffc0000000000 R11: fffff520001bef48 R12: 1ffff110245b8288 [ 25.661419][ T305] R13: 0000000000000001 R14: ffff888122dc1250 R15: dffffc0000000000 [ 25.669401][ T305] FS: 0000555569b023c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 25.678338][ T305] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.684914][ T305] CR2: 0000555569b1b7d8 CR3: 000000010ff31000 CR4: 00000000003506a0 [ 25.692895][ T305] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.700879][ T305] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.708860][ T305] Kernel panic - not syncing: Fatal exception [ 25.715159][ T305] Kernel Offset: disabled [ 25.719470][ T305] Rebooting in 86400 seconds..