ci2-android-5-10/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-5-10/syz-executor2160144385 <...> Warning: Permanently added '10.128.0.90' (ED25519) to the list of known hosts. execve("ci2-android-5-10/syz-executor2160144385", ["ci2-android-5-10/syz-executor2160144385"], 0x7ffd02c8c6f0 /* 10 vars */) = 0 brk(NULL) = 0x555593eb1000 brk(0x555593eb1d40) = 0x555593eb1d40 arch_prctl(ARCH_SET_FS, 0x555593eb13c0) = 0 set_tid_address(0x555593eb1690) = 297 set_robust_list(0x555593eb16a0, 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-executor2160144385", 4096) = 45 getrandom("\xd2\xd3\xfe\x69\x66\xc6\x0d\x58", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555593eb1d40 brk(0x555593ed2d40) = 0x555593ed2d40 brk(0x555593ed3000) = 0x555593ed3000 mprotect(0x7f909cb01000, 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("\xb2\x59\xe7\x54\x80\x34\x83\xd4", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.utNXNK", 0700) = 0 chmod("./syzkaller.utNXNK", 0777) = 0 chdir("./syzkaller.utNXNK") = 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|SIGCHLD, child_tidptr=0x555593eb1690) = 298 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-5-10/strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x555593eb16a0, 24) = 0 [pid 298] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 298] chdir("./0") = 0 [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setpgid(0, 0) = 0 [pid 298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 298] write(3, "1000", 4) = 4 [pid 298] close(3) = 0 [pid 298] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 298] write(1, "executing program\n", 18) = 18 [pid 298] memfd_create("syzkaller", 0) = 3 [pid 298] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9094650000 [pid 298] 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 298] munmap(0x7f9094650000, 138412032) = 0 [pid 298] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 298] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 298] close(3) = 0 [pid 298] close(4) = 0 [pid 298] mkdir("./file0", 0777) = 0 [ 20.399266][ T24] audit: type=1400 audit(1791704912.360:64): avc: denied { execmem } for pid=297 comm="syz-executor216" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 20.405342][ T24] audit: type=1400 audit(1791704912.370:65): avc: denied { read } for pid=297 comm="syz-executor216" 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 [ 20.408581][ T24] audit: type=1400 audit(1791704912.370:66): avc: denied { open } for pid=297 comm="syz-executor216" 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 [ 20.413276][ T24] audit: type=1400 audit(1791704912.380:67): avc: denied { ioctl } for pid=297 comm="syz-executor216" 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 [ 20.420146][ T24] audit: type=1400 audit(1791704912.390:68): avc: denied { write } for pid=298 comm="syz-executor216" 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 [ 20.460340][ T24] audit: type=1400 audit(1791704912.430:69): avc: denied { mounton } for pid=298 comm="syz-executor216" path="/root/syzkaller.utNXNK/0/file0" dev="sda1" ino=2028 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 298] mount("/dev/loop0", "./file0", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_I_VERSION|MS_LAZYTIME|0x200, "seclabel,,errors=continue") = 0 [pid 298] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 298] chdir("./file0") = 0 [pid 298] openat(AT_FDCWD, "/dev/loop0", O_RDONLY) = 4 [pid 298] ioctl(4, LOOP_CLR_FD) = 0 [pid 298] close(4) = 0 [pid 298] mount("./file0", "./file0", "incremental-fs", MS_NODEV|MS_NOATIME, NULL) = 0 [pid 298] exit_group(0) = ? [pid 298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=298, 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, 0x555593eb2750 /* 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 [ 20.503442][ T298] EXT4-fs error (device loop0): ext4_xattr_inode_iget:397: comm syz-executor216: Parent and EA inode have the same ino 15 [ 20.516355][ T298] EXT4-fs (loop0): 1 orphan inode deleted [ 20.522092][ T298] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 20.531213][ T24] audit: type=1400 audit(1791704912.510:70): avc: denied { mount } for pid=298 comm="syz-executor216" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 getdents64(4, 0x555593eba790 /* 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, 0x555593ec27d0 /* 2 entries */, 32768) = 48 getdents64(5, 0x555593ec27d0 /* 0 entries */, 32768) = 0 close(5) = 0 rmdir("./0/file0/file1") = 0 [ 20.543143][ T297] EXT4-fs error (device loop0): htree_dirblock_to_tree:1092: inode #2: block 13: comm syz-executor216: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0 [ 20.553549][ T24] audit: type=1400 audit(1791704912.510:71): avc: denied { mounton } for pid=298 comm="syz-executor216" path="/root/syzkaller.utNXNK/0/file0/file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 20.598597][ T297] ------------[ cut here ]------------ [ 20.598870][ T24] audit: type=1400 audit(1791704912.510:72): avc: denied { write } for pid=298 comm="syz-executor216" name="file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 20.604233][ T297] kernel BUG at fs/namei.c:2836! [ 20.626306][ T24] audit: type=1400 audit(1791704912.510:73): avc: denied { add_name } for pid=298 comm="syz-executor216" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 20.652197][ T297] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 20.658241][ T297] CPU: 1 PID: 297 Comm: syz-executor216 Not tainted syzkaller #0 [ 20.665919][ T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 20.675963][ T297] RIP: 0010:may_delete+0x7a5/0x7b0 [ 20.681062][ T297] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 bc 02 f5 ff e9 be fd ff ff e8 42 7e ba ff 0f 0b e8 3b 7e ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 [ 20.700637][ T297] RSP: 0018:ffffc90000b07be8 EFLAGS: 00010293 [ 20.706675][ T297] RAX: ffffffff81aa3a55 RBX: ffff88811a666000 RCX: ffff8881059d3c00 [ 20.714617][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 20.722558][ T297] RBP: ffffc90000b07c60 R08: 0000000000000003 R09: 0000000000000004 [ 20.730498][ T297] R10: dffffc0000000000 R11: fffff52000160f60 R12: ffff88811a440d68 [ 20.738442][ T297] R13: 1ffff110234ccc00 R14: ffff88811a666140 R15: dffffc0000000000 [ 20.746388][ T297] FS: 0000555593eb13c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 20.755282][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.761839][ T297] CR2: 0000555593eca7d8 CR3: 000000011f7f8000 CR4: 00000000003506a0 [ 20.769790][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.777737][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.785682][ T297] Call Trace: [ 20.788951][ T297] ? __kasan_check_write+0x14/0x20 [ 20.794046][ T297] vfs_rmdir+0x29/0x3c0 [ 20.798181][ T297] ? incfs_kill_sb+0xec/0x200 [ 20.802836][ T297] incfs_kill_sb+0xf7/0x200 [ 20.807315][ T297] deactivate_locked_super+0xa0/0x100 [ 20.812660][ T297] deactivate_super+0xaf/0xe0 [ 20.817309][ T297] cleanup_mnt+0x44f/0x500 [ 20.821705][ T297] __cleanup_mnt+0x19/0x20 [ 20.826097][ T297] task_work_run+0x127/0x190 [ 20.830663][ T297] ptrace_notify+0x230/0x270 [ 20.835230][ T297] ? do_notify_parent+0x810/0x810 [ 20.840227][ T297] ? user_path_at_empty+0x43/0x50 [ 20.845223][ T297] ? __x64_sys_umount+0x12d/0x170 [ 20.850220][ T297] ? path_umount+0xfa0/0xfa0 [ 20.854783][ T297] syscall_exit_work+0x6e/0x140 [ 20.859611][ T297] syscall_exit_to_user_mode+0x2f/0x40 [ 20.865045][ T297] do_syscall_64+0x3d/0x40 [ 20.869460][ T297] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 20.875326][ T297] RIP: 0033:0x7f909ca750b7 [ 20.879715][ 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 [ 20.899292][ T297] RSP: 002b:00007ffc858148a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 20.907800][ T297] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f909ca750b7 [ 20.915748][ T297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc85814960 [ 20.923695][ T297] RBP: 00007ffc85814960 R08: 00007ffc85815960 R09: 00000000ffffffff [ 20.931656][ T297] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffc85815a50 [ 20.939603][ T297] R13: 0000555593eba760 R14: 0000000000000001 R15: 431bde82d7b634db [ 20.947553][ T297] Modules linked in: [ 20.951526][ T297] ---[ end trace 0f9ecc0200cbf892 ]--- [ 20.956986][ T297] RIP: 0010:may_delete+0x7a5/0x7b0 [ 20.962132][ T297] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 bc 02 f5 ff e9 be fd ff ff e8 42 7e ba ff 0f 0b e8 3b 7e ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 [ 20.981753][ T297] RSP: 0018:ffffc90000b07be8 EFLAGS: 00010293 [ 20.987813][ T297] RAX: ffffffff81aa3a55 RBX: ffff88811a666000 RCX: ffff8881059d3c00 [ 20.995786][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 21.003756][ T297] RBP: ffffc90000b07c60 R08: 0000000000000003 R09: 0000000000000004 [ 21.011731][ T297] R10: dffffc0000000000 R11: fffff52000160f60 R12: ffff88811a440d68 [ 21.019709][ T297] R13: 1ffff110234ccc00 R14: ffff88811a666140 R15: dffffc0000000000 [ 21.027656][ T297] FS: 0000555593eb13c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.036579][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.043160][ T297] CR2: 000055ee4fc9b890 CR3: 000000011f7f8000 CR4: 00000000003506b0 [ 21.051128][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.059082][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.067050][ T297] Kernel panic - not syncing: Fatal exception [ 21.073323][ T297] Kernel Offset: disabled [ 21.077629][ T297] Rebooting in 86400 seconds..