ci2-android-5-10/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-10/syz-executor3896327942 <...> Warning: Permanently added '10.128.0.42' (ED25519) to the list of known hosts. execve("ci2-android-5-10/syz-executor3896327942", ["ci2-android-5-10/syz-executor3896327942"], 0x7fff958614e0 /* 10 vars */) = 0 brk(NULL) = 0x55558f9c7000 brk(0x55558f9c7d40) = 0x55558f9c7d40 arch_prctl(ARCH_SET_FS, 0x55558f9c73c0) = 0 set_tid_address(0x55558f9c7690) = 297 set_robust_list(0x55558f9c76a0, 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-5-10/syz-executor3896327942", 4096) = 45 getrandom("\x12\xd6\x84\xf2\x6a\x20\x87\x95", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558f9c7d40 brk(0x55558f9e8d40) = 0x55558f9e8d40 brk(0x55558f9e9000) = 0x55558f9e9000 mprotect(0x7f8948718000, 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("\xe4\xaa\xb0\x9c\x8b\x05\xc9\xce", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.QdYHKq", 0700) = 0 chmod("./syzkaller.QdYHKq", 0777) = 0 chdir("./syzkaller.QdYHKq") = 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=0x55558f9c7690) = 299 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-5-10/strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x55558f9c76a0, 24) = 0 [pid 299] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 299] chdir("./0") = 0 [pid 299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] setpgid(0, 0) = 0 [pid 299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] write(3, "1000", 4) = 4 [pid 299] close(3) = 0 [pid 299] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 299] write(1, "executing program\n", 18) = 18 [pid 299] memfd_create("syzkaller", 0) = 3 [pid 299] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8940267000 [pid 299] 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 299] munmap(0x7f8940267000, 138412032) = 0 [pid 299] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 299] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 299] close(3) = 0 [pid 299] close(4) = 0 [pid 299] mkdir("./file0", 0777) = 0 [ 21.236839][ T24] audit: type=1400 audit(1785994827.230:64): avc: denied { execmem } for pid=297 comm="syz-executor389" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.243685][ T24] audit: type=1400 audit(1785994827.240:65): avc: denied { read write } for pid=297 comm="syz-executor389" name="loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.247488][ T24] audit: type=1400 audit(1785994827.240:66): avc: denied { open } for pid=297 comm="syz-executor389" path="/dev/loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.252811][ T24] audit: type=1400 audit(1785994827.250:67): avc: denied { ioctl } for pid=297 comm="syz-executor389" path="/dev/loop0" dev="devtmpfs" ino=115 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 21.289521][ T24] audit: type=1400 audit(1785994827.290:68): avc: denied { mounton } for pid=299 comm="syz-executor389" path="/root/syzkaller.QdYHKq/0/file0" dev="sda1" ino=2028 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 299] mount("/dev/loop0", "./file0", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_I_VERSION|0x200, ",errors=continue") = 0 [pid 299] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 299] chdir("./file0") = 0 [pid 299] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 299] ioctl(4, LOOP_CLR_FD) = 0 [pid 299] close(4) = 0 [ 21.332804][ T299] EXT4-fs error (device loop0): ext4_xattr_inode_iget:401: comm syz-executor389: inode #1: comm syz-executor389: iget: illegal inode # [ 21.346886][ T299] EXT4-fs error (device loop0): ext4_xattr_inode_iget:406: comm syz-executor389: error while reading EA inode 1 err=-117 [ 21.359927][ T299] EXT4-fs (loop0): 1 orphan inode deleted [ 21.365641][ T299] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [pid 299] mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0 [pid 299] exit_group(0) = ? [pid 299] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=299, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 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, 0x55558f9c8750 /* 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 fstat(4, {st_mode=S_IFDIR|0755, st_size=1024, ...}) = 0 getdents64(4, 0x55558f9d0790 /* 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, 0x55558f9d87d0 /* 2 entries */, 32768) = 48 getdents64(5, 0x55558f9d87d0 /* 0 entries */, 32768) = 0 close(5) = 0 rmdir("./0/file0/file1") = 0 [ 21.374811][ T24] audit: type=1400 audit(1785994827.380:69): avc: denied { mount } for pid=299 comm="syz-executor389" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 21.387763][ T297] EXT4-fs error (device loop0): htree_dirblock_to_tree:1092: inode #2: block 13: comm syz-executor389: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0 [ 21.396744][ T24] audit: type=1400 audit(1785994827.380:70): avc: denied { mounton } for pid=299 comm="syz-executor389" path="/root/syzkaller.QdYHKq/0/file0/file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 21.442091][ T24] audit: type=1400 audit(1785994827.380:71): avc: denied { write } for pid=299 comm="syz-executor389" name="file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 21.442231][ T297] ------------[ cut here ]------------ [ 21.464456][ T24] audit: type=1400 audit(1785994827.380:72): avc: denied { add_name } for pid=299 comm="syz-executor389" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 21.469870][ T297] kernel BUG at fs/namei.c:2794! [ 21.490798][ T24] audit: type=1400 audit(1785994827.380:73): avc: denied { create } for pid=299 comm="syz-executor389" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=dir permissive=1 [ 21.495834][ T297] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 21.522168][ T297] CPU: 0 PID: 297 Comm: syz-executor389 Not tainted syzkaller #0 [ 21.529854][ T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 21.539904][ T297] RIP: 0010:may_delete+0x7a5/0x7b0 [ 21.545000][ T297] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 bc 09 f5 ff e9 be fd ff ff e8 b2 94 ba ff 0f 0b e8 ab 94 ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 [ 21.564592][ T297] RSP: 0018:ffffc90000bb7be8 EFLAGS: 00010293 [ 21.570630][ T297] RAX: ffffffff81aa0ed5 RBX: ffff88812183acc0 RCX: ffff88810b6a4f00 [ 21.578571][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 21.586524][ T297] RBP: ffffc90000bb7c60 R08: 0000000000000003 R09: 0000000000000004 [ 21.594465][ T297] R10: dffffc0000000000 R11: fffff52000176f60 R12: ffff888121844290 [ 21.602422][ T297] R13: 1ffff11024307598 R14: ffff8881218b18b0 R15: dffffc0000000000 [ 21.610363][ T297] FS: 000055558f9c73c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.619260][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.625813][ T297] CR2: 000055558f9e07d8 CR3: 000000010aea0000 CR4: 00000000003506b0 [ 21.633777][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.641806][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.649744][ T297] Call Trace: [ 21.653005][ T297] ? __kasan_check_write+0x14/0x20 [ 21.658090][ T297] vfs_rmdir+0x29/0x3c0 [ 21.662239][ T297] ? incfs_kill_sb+0xec/0x200 [ 21.666884][ T297] incfs_kill_sb+0xf7/0x200 [ 21.671368][ T297] deactivate_locked_super+0xa0/0x100 [ 21.676707][ T297] deactivate_super+0xaf/0xe0 [ 21.681351][ T297] cleanup_mnt+0x44f/0x500 [ 21.685733][ T297] __cleanup_mnt+0x19/0x20 [ 21.690126][ T297] task_work_run+0x127/0x190 [ 21.694691][ T297] ptrace_notify+0x230/0x270 [ 21.699249][ T297] ? do_notify_parent+0x810/0x810 [ 21.704248][ T297] ? user_path_at_empty+0x43/0x50 [ 21.709253][ T297] ? __x64_sys_umount+0x12d/0x170 [ 21.714264][ T297] ? path_umount+0xfa0/0xfa0 [ 21.718841][ T297] syscall_exit_work+0x6e/0x140 [ 21.723671][ T297] syscall_exit_to_user_mode+0x2f/0x40 [ 21.729098][ T297] do_syscall_64+0x3d/0x40 [ 21.733482][ T297] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 21.739346][ T297] RIP: 0033:0x7f894868c0b7 [ 21.743731][ T297] 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 [ 21.763304][ T297] RSP: 002b:00007ffc858a57c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 21.771686][ T297] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f894868c0b7 [ 21.779643][ T297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc858a5880 [ 21.787589][ T297] RBP: 00007ffc858a5880 R08: 00007ffc858a6880 R09: 00000000ffffffff [ 21.795542][ T297] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc858a6970 [ 21.803483][ T297] R13: 000055558f9d0760 R14: 0000000000000001 R15: 431bde82d7b634db [ 21.811428][ T297] Modules linked in: [ 21.815524][ T297] ---[ end trace bd38d3e62f59b55c ]--- [ 21.821015][ T297] RIP: 0010:may_delete+0x7a5/0x7b0 [ 21.826107][ T297] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 bc 09 f5 ff e9 be fd ff ff e8 b2 94 ba ff 0f 0b e8 ab 94 ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 [ 21.845746][ T297] RSP: 0018:ffffc90000bb7be8 EFLAGS: 00010293 [ 21.851849][ T297] RAX: ffffffff81aa0ed5 RBX: ffff88812183acc0 RCX: ffff88810b6a4f00 [ 21.859825][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 21.867786][ T297] RBP: ffffc90000bb7c60 R08: 0000000000000003 R09: 0000000000000004 [ 21.875774][ T297] R10: dffffc0000000000 R11: fffff52000176f60 R12: ffff888121844290 [ 21.883788][ T297] R13: 1ffff11024307598 R14: ffff8881218b18b0 R15: dffffc0000000000 [ 21.891777][ T297] FS: 000055558f9c73c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.900703][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.907259][ T297] CR2: 000055558f9e07d8 CR3: 000000010aea0000 CR4: 00000000003506b0 [ 21.915232][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.923209][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.931183][ T297] Kernel panic - not syncing: Fatal exception [ 21.937328][ T297] Kernel Offset: disabled [ 21.941641][ T297] Rebooting in 86400 seconds..