./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4051263945 <...> Warning: Permanently added '10.128.1.91' (ED25519) to the list of known hosts. execve("./syz-executor4051263945", ["./syz-executor4051263945"], 0x7ffdec539350 /* 10 vars */) = 0 brk(NULL) = 0x555574c6f000 brk(0x555574c6fd00) = 0x555574c6fd00 arch_prctl(ARCH_SET_FS, 0x555574c6f380) = 0 set_tid_address(0x555574c6f650) = 297 set_robust_list(0x555574c6f660, 24) = 0 rseq(0x555574c6fca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4051263945", 4096) = 28 getrandom("\x03\x3f\x4f\xe2\x34\x7f\x2a\x24", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555574c6fd00 brk(0x555574c90d00) = 0x555574c90d00 brk(0x555574c91000) = 0x555574c91000 mprotect(0x7f4406968000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 mkdir("./syzkaller.P9PSqn", 0700) = 0 chmod("./syzkaller.P9PSqn", 0777) = 0 chdir("./syzkaller.P9PSqn") = 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555574c6f650) = 299 ./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x555574c6f660, 24) = 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"executing program ) = 0 [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) = 0x7f43fe4b5000 [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(0x7f43fe4b5000, 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 [ 25.395996][ T28] audit: type=1400 audit(1734093241.197:66): avc: denied { execmem } for pid=297 comm="syz-executor405" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 25.415682][ T28] audit: type=1400 audit(1734093241.207:67): avc: denied { read write } for pid=297 comm="syz-executor405" name="loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.420858][ T299] loop0: detected capacity change from 0 to 512 [pid 299] close(4) = 0 [pid 299] mkdir("./file0", 0777) = 0 [ 25.441160][ T28] audit: type=1400 audit(1734093241.207:68): avc: denied { open } for pid=297 comm="syz-executor405" path="/dev/loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.453528][ T299] EXT4-fs: Ignoring removed nobh option [ 25.472357][ T28] audit: type=1400 audit(1734093241.207:69): avc: denied { ioctl } for pid=297 comm="syz-executor405" path="/dev/loop0" dev="devtmpfs" ino=114 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 25.501013][ T28] audit: type=1400 audit(1734093241.257:70): avc: denied { mounton } for pid=299 comm="syz-executor405" path="/root/syzkaller.P9PSqn/0/file0" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 25.503341][ T299] EXT4-fs error (device loop0): ext4_xattr_inode_iget:404: comm syz-executor405: inode #1: comm syz-executor405: iget: illegal inode # [pid 299] mount("/dev/loop0", "./file0", "ext4", MS_NOSYMFOLLOW|MS_NOATIME|MS_I_VERSION|0x200, "journal_ioprio=0x0000000000000005,journal_dev=0x0000000000008000,nobh,minixdf,resgid=0x0000000000000"...) = 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 [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=5} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x555574c706f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 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 newfstatat(4, "", {st_mode=S_IFDIR|0755, st_size=1024, ...}, AT_EMPTY_PATH) = 0 [ 25.539007][ T299] EXT4-fs error (device loop0): ext4_xattr_inode_iget:409: comm syz-executor405: error while reading EA inode 1 err=-117 [ 25.551932][ T299] EXT4-fs (loop0): 1 orphan inode deleted [ 25.557462][ T299] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 25.566542][ T28] audit: type=1400 audit(1734093241.377:71): avc: denied { mount } for pid=299 comm="syz-executor405" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 getdents64(4, 0x555574c78730 /* 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 newfstatat(5, "", {st_mode=S_IFDIR|0700, st_size=60, ...}, AT_EMPTY_PATH) = 0 getdents64(5, 0x555574c80770 /* 2 entries */, 32768) = 48 getdents64(5, 0x555574c80770 /* 0 entries */, 32768) = 0 close(5) = 0 rmdir("./0/file0/file1") = 0 [ 25.582535][ T297] EXT4-fs error (device loop0): htree_dirblock_to_tree:1112: inode #2: block 13: comm syz-executor405: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0 [ 25.589131][ T28] audit: type=1400 audit(1734093241.377:72): avc: denied { mounton } for pid=299 comm="syz-executor405" path="/root/syzkaller.P9PSqn/0/file0/file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 25.633769][ T28] audit: type=1400 audit(1734093241.377:73): avc: denied { write } for pid=299 comm="syz-executor405" name="file0" dev="loop0" ino=12 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 25.656089][ T297] ------------[ cut here ]------------ [ 25.656414][ T28] audit: type=1400 audit(1734093241.377:74): avc: denied { add_name } for pid=299 comm="syz-executor405" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 25.661466][ T297] kernel BUG at fs/namei.c:2954! [ 25.682138][ T28] audit: type=1400 audit(1734093241.377:75): avc: denied { create } for pid=299 comm="syz-executor405" name=".index" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=dir permissive=1 [ 25.707231][ T297] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 25.713108][ T297] CPU: 1 PID: 297 Comm: syz-executor405 Not tainted 6.1.115-syzkaller-00017-g22b7ded8b55b #0 [ 25.723097][ T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 25.732982][ T297] RIP: 0010:may_delete+0x6eb/0x6f0 [ 25.737936][ T297] Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 16 6b f3 ff e9 72 fe ff ff e8 0c f9 ab ff 0f 0b e8 05 f9 ab ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 f1 f8 ab ff 4c 8d [ 25.757387][ T297] RSP: 0018:ffffc90000dd7b18 EFLAGS: 00010293 [ 25.763269][ T297] RAX: ffffffff81c98dab RBX: ffff888123221030 RCX: ffff8881114de540 [ 25.771083][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.778893][ T297] RBP: ffffc90000dd7b80 R08: ffffffff81c9873f R09: 0000000000000003 [ 25.786726][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888123221110 [ 25.794518][ T297] R13: 1ffff11024644222 R14: ffff88810bda3a98 R15: dffffc0000000000 [ 25.802327][ T297] FS: 0000555574c6f380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 25.811097][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.817526][ T297] CR2: 0000555574c88778 CR3: 0000000127494000 CR4: 00000000003506a0 [ 25.825331][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.833141][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.840956][ T297] Call Trace: [ 25.844074][ T297] [ 25.846852][ T297] ? __die_body+0x62/0xb0 [ 25.851043][ T297] ? die+0x88/0xb0 [ 25.854578][ T297] ? do_trap+0x103/0x330 [ 25.858663][ T297] ? may_delete+0x6eb/0x6f0 [ 25.863001][ T297] ? handle_invalid_op+0x95/0xc0 [ 25.867779][ T297] ? may_delete+0x6eb/0x6f0 [ 25.872267][ T297] ? exc_invalid_op+0x32/0x50 [ 25.876777][ T297] ? asm_exc_invalid_op+0x1b/0x20 [ 25.881768][ T297] ? may_delete+0x7f/0x6f0 [ 25.886004][ T297] ? may_delete+0x6eb/0x6f0 [ 25.890344][ T297] ? may_delete+0x6eb/0x6f0 [ 25.894690][ T297] ? may_delete+0x6eb/0x6f0 [ 25.899033][ T297] vfs_rmdir+0x32/0x500 [ 25.903014][ T297] ? generic_shutdown_super+0x2b8/0x370 [ 25.908396][ T297] incfs_kill_sb+0x113/0x230 [ 25.912822][ T297] deactivate_locked_super+0xad/0x110 [ 25.918058][ T297] deactivate_super+0xbe/0xf0 [ 25.922546][ T297] cleanup_mnt+0x485/0x510 [ 25.926811][ T297] __cleanup_mnt+0x19/0x20 [ 25.931057][ T297] task_work_run+0x24d/0x2e0 [ 25.935483][ T297] ? task_work_cancel+0x2e0/0x2e0 [ 25.940345][ T297] ptrace_notify+0x29e/0x350 [ 25.944770][ T297] ? do_notify_parent+0xa20/0xa20 [ 25.949620][ T297] ? user_path_at_empty+0x14e/0x1a0 [ 25.954677][ T297] ? __x64_sys_umount+0x122/0x170 [ 25.959516][ T297] ? path_umount+0xe70/0xe70 [ 25.963945][ T297] syscall_exit_to_user_mode+0x99/0x130 [ 25.969335][ T297] do_syscall_64+0x47/0xb0 [ 25.973589][ T297] ? clear_bhb_loop+0x55/0xb0 [ 25.978089][ T297] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 25.983817][ T297] RIP: 0033:0x7f44068f54c7 [ 25.988079][ T297] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 26.007516][ T297] RSP: 002b:00007fff64248838 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 26.015758][ T297] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f44068f54c7 [ 26.023571][ T297] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff642488f0 [ 26.031399][ T297] RBP: 00007fff642488f0 R08: 0000000000000000 R09: 0000000000000000 [ 26.039208][ T297] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007fff642499e0 [ 26.047001][ T297] R13: 0000555574c78700 R14: 431bde82d7b634db R15: 00007fff6424aa70 [ 26.054825][ T297] [ 26.057681][ T297] Modules linked in: [ 26.061550][ T297] ---[ end trace 0000000000000000 ]--- [ 26.066817][ T297] RIP: 0010:may_delete+0x6eb/0x6f0 [ 26.071934][ T297] Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 16 6b f3 ff e9 72 fe ff ff e8 0c f9 ab ff 0f 0b e8 05 f9 ab ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 f1 f8 ab ff 4c 8d [ 26.091416][ T297] RSP: 0018:ffffc90000dd7b18 EFLAGS: 00010293 [ 26.097268][ T297] RAX: ffffffff81c98dab RBX: ffff888123221030 RCX: ffff8881114de540 [ 26.105107][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 26.112913][ T297] RBP: ffffc90000dd7b80 R08: ffffffff81c9873f R09: 0000000000000003 [ 26.120719][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888123221110 [ 26.128526][ T297] R13: 1ffff11024644222 R14: ffff88810bda3a98 R15: dffffc0000000000 [ 26.136321][ T297] FS: 0000555574c6f380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 26.145113][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.151542][ T297] CR2: 000055aba6266098 CR3: 0000000127494000 CR4: 00000000003506b0 [ 26.159342][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.167136][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.174974][ T297] Kernel panic - not syncing: Fatal exception [ 26.181000][ T297] Kernel Offset: disabled [ 26.185150][ T297] Rebooting in 86400 seconds..