./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3949020921 <...> [ 5.538027][ T94] udevd[94]: starting eudev-3.2.11 [ 6.788450][ T24] kauditd_printk_skb: 47 callbacks suppressed [ 6.788462][ T24] audit: type=1400 audit(1723254023.030:58): avc: denied { use } for pid=174 comm="ssh-keygen" path="/dev/null" dev="devtmpfs" ino=4 scontext=system_u:system_r:ssh_keygen_t tcontext=system_u:system_r:kernel_t tclass=fd permissive=1 [ 6.829380][ T24] audit: type=1400 audit(1723254023.070:59): avc: denied { search } for pid=174 comm="ssh-keygen" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:ssh_keygen_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 6.852976][ T24] audit: type=1400 audit(1723254023.090:60): avc: denied { use } for pid=179 comm="sshd" path="/dev/null" dev="devtmpfs" ino=4 scontext=system_u:system_r:sshd_t tcontext=system_u:system_r:kernel_t tclass=fd permissive=1 [ 14.645490][ T24] audit: type=1400 audit(1723254030.890:61): avc: denied { transition } for pid=218 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.652561][ T24] audit: type=1400 audit(1723254030.890:62): avc: denied { noatsecure } for pid=218 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.658585][ T24] audit: type=1400 audit(1723254030.890:63): avc: denied { write } for pid=218 comm="sh" path="pipe:[13621]" dev="pipefs" ino=13621 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 14.669907][ T24] audit: type=1400 audit(1723254030.890:64): avc: denied { rlimitinh } for pid=218 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.689951][ T24] audit: type=1400 audit(1723254030.890:65): avc: denied { siginh } for pid=218 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.107' (ED25519) to the list of known hosts. execve("./syz-executor3949020921", ["./syz-executor3949020921"], 0x7fffcadce5c0 /* 10 vars */) = 0 brk(NULL) = 0x555555e5a000 brk(0x555555e5ad00) = 0x555555e5ad00 arch_prctl(ARCH_SET_FS, 0x555555e5a380) = 0 set_tid_address(0x555555e5a650) = 288 set_robust_list(0x555555e5a660, 24) = 0 rseq(0x555555e5aca0, 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-executor3949020921", 4096) = 28 getrandom("\x78\x4f\x9e\xf9\xff\x5e\x88\x5c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555e5ad00 brk(0x555555e7bd00) = 0x555555e7bd00 brk(0x555555e7c000) = 0x555555e7c000 mprotect(0x7fad8234c000, 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.AlqU1q", 0700) = 0 chmod("./syzkaller.AlqU1q", 0777) = 0 chdir("./syzkaller.AlqU1q") = 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=0x555555e5a650) = 290 ./strace-static-x86_64: Process 290 attached [pid 290] set_robust_list(0x555555e5a660, 24) = 0 [pid 290] chdir("./0") = 0 [pid 290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 290] setpgid(0, 0) = 0 [pid 290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 290] write(3, "1000", 4) = 4 [pid 290] close(3) = 0 [pid 290] symlink("/dev/binderfs", "./binderfs"executing program ) = 0 [pid 290] write(1, "executing program\n", 18) = 18 [pid 290] memfd_create("syzkaller", 0) = 3 [pid 290] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fad79e99000 [pid 290] 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 290] munmap(0x7fad79e99000, 138412032) = 0 [pid 290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 290] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 290] close(3) = 0 [pid 290] close(4) = 0 [ 24.106238][ T24] audit: type=1400 audit(1723254040.350:66): avc: denied { execmem } for pid=288 comm="syz-executor394" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.129702][ T24] audit: type=1400 audit(1723254040.350:67): avc: denied { read write } for pid=288 comm="syz-executor394" name="loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 290] mkdir("./file0", 0777) = 0 [ 24.156579][ T24] audit: type=1400 audit(1723254040.350:68): avc: denied { open } for pid=288 comm="syz-executor394" path="/dev/loop0" dev="devtmpfs" ino=111 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 24.159529][ T290] ====================================================== [ 24.159529][ T290] WARNING: the mand mount option is being deprecated and [ 24.159529][ T290] will be removed in v5.15! [ 24.159529][ T290] ====================================================== [ 24.191192][ T24] audit: type=1400 audit(1723254040.350:69): avc: denied { ioctl } for pid=288 comm="syz-executor394" path="/dev/loop0" dev="devtmpfs" ino=111 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 24.263949][ T24] audit: type=1400 audit(1723254040.400:70): avc: denied { mounton } for pid=290 comm="syz-executor394" path="/root/syzkaller.AlqU1q/0/file0" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 24.266111][ T290] EXT4-fs error (device loop0): __ext4_iget:4958: inode #11: block 1: comm syz-executor394: invalid block [ 24.312863][ T290] EXT4-fs error (device loop0): ext4_orphan_get:1396: comm syz-executor394: couldn't read orphan inode 11 (err -117) [ 24.330646][ T290] EXT4-fs (loop0): mounted filesystem without journal. Opts: noauto_da_alloc,minixdf,nogrpid,data_err=abort,grpquota,usrjquota=,inode_readahead_blks=0x0000000000400000,i_version,acl,,errors=continue [pid 290] mount("/dev/loop0", "./file0", "ext4", MS_NODEV|MS_MANDLOCK|MS_NOSYMFOLLOW|MS_NOATIME|MS_POSIXACL|MS_I_VERSION|MS_STRICTATIME|MS_LAZYTIME|0x200, "noauto_da_alloc,minixdf,nogrpid,data_err=abort,grpquota,usrjquota=,inode_readahead_blks=0x0000000000"...) = 0 [pid 290] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 290] chdir("./file0") = 0 [pid 290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 290] ioctl(4, LOOP_CLR_FD) = 0 [pid 290] close(4) = 0 [pid 290] open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_DIRECT|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4 [pid 290] mount("/dev/loop0", "./bus", NULL, MS_BIND, NULL) = 0 [pid 290] open("./bus", O_RDWR|O_NOCTTY|O_SYNC|O_DIRECT|O_CLOEXEC) = 5 [ 24.354391][ T24] audit: type=1400 audit(1723254040.590:71): avc: denied { mount } for pid=290 comm="syz-executor394" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [pid 290] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0) = 0x20000000 [pid 290] bpf(BPF_PROG_LOAD, 0x20000a40, 144) = -1 E2BIG (Argument list too long) [pid 290] exit_group(0) = ? [pid 290] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=290, si_uid=0, si_status=0, si_utime=0, si_stime=8} --- 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, 0x555555e5b6f0 /* 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 getdents64(4, 0x555555e63730 /* 1 entries */, 32768) = 24 [ 24.382839][ T24] audit: type=1400 audit(1723254040.620:72): avc: denied { write } for pid=290 comm="syz-executor394" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 24.411721][ T24] audit: type=1400 audit(1723254040.620:73): avc: denied { add_name } for pid=290 comm="syz-executor394" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 umount2("./0/file0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./0/file0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0/bus", {st_mode=S_IFREG|000, st_size=0, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 24.438701][ T24] audit: type=1400 audit(1723254040.620:74): avc: denied { create } for pid=290 comm="syz-executor394" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 24.468713][ T24] audit: type=1400 audit(1723254040.620:75): avc: denied { read write open } for pid=290 comm="syz-executor394" path="/root/syzkaller.AlqU1q/0/file0/bus" dev="loop0" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 24.469994][ T288] ------------[ cut here ]------------ [ 24.503420][ T288] kernel BUG at fs/ext4/inode.c:5246! [ 24.508990][ T288] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 24.515330][ T288] CPU: 1 PID: 288 Comm: syz-executor394 Not tainted 5.10.222-syzkaller-01494-gfd58936f3c1f #0 [ 24.526665][ T288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 24.538617][ T288] RIP: 0010:ext4_mark_iloc_dirty+0x3e51/0x3e60 [ 24.545013][ T288] Code: 6d ca ff e9 0f f1 ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 21 f1 ff ff 48 89 df e8 79 6e ca ff e9 14 f1 ff ff e8 1f d6 8c ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 57 41 [ 24.568068][ T288] RSP: 0018:ffffc9000093f980 EFLAGS: 00010293 [ 24.574665][ T288] RAX: ffffffff81ddd2e1 RBX: 0000000000000000 RCX: ffff888120123b40 [ 24.585018][ T288] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 24.595333][ T288] RBP: ffffc9000093fa90 R08: ffffffff81ddaefd R09: ffffed102203b297 [ 24.609246][ T288] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 24.621440][ T288] R13: 00000000ffffffff R14: 0000000000000207 R15: ffff888120399000 [ 24.635267][ T288] FS: 0000555555e5a380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.647189][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.656234][ T288] CR2: 0000564765ed4088 CR3: 0000000120013000 CR4: 00000000003506a0 [ 24.667988][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.677044][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.688164][ T288] Call Trace: [ 24.692465][ T288] ? __die_body+0x62/0xb0 [ 24.696976][ T288] ? die+0x88/0xb0 [ 24.700895][ T288] ? do_trap+0x1a4/0x310 [ 24.706029][ T288] ? ext4_mark_iloc_dirty+0x3e51/0x3e60 [ 24.712041][ T288] ? handle_invalid_op+0x95/0xc0 [ 24.719832][ T288] ? ext4_mark_iloc_dirty+0x3e51/0x3e60 [ 24.725806][ T288] ? exc_invalid_op+0x32/0x50 [ 24.730494][ T288] ? asm_exc_invalid_op+0x12/0x20 [ 24.735742][ T288] ? ext4_mark_iloc_dirty+0x1a6d/0x3e60 [ 24.743054][ T288] ? ext4_mark_iloc_dirty+0x3e51/0x3e60 [ 24.748621][ T288] ? ext4_mark_iloc_dirty+0x3e51/0x3e60 [ 24.754510][ T288] __ext4_mark_inode_dirty+0x4fc/0x7b0 [ 24.760248][ T288] ? sb_end_intwrite+0x110/0x110 [ 24.765180][ T288] ? current_time+0x1af/0x2f0 [ 24.770124][ T288] ? atime_needs_update+0x5a0/0x5a0 [ 24.775245][ T288] ? __ext4_unlink+0x6f0/0xac0 [ 24.780244][ T288] ? memcpy+0x56/0x70 [ 24.784335][ T288] __ext4_unlink+0x8b5/0xac0 [ 24.789527][ T288] ? ext4_orphan_del+0x7c0/0x7c0 [ 24.795485][ T288] ? down_write+0xd7/0x150 [ 24.801667][ T288] ? down_read_killable+0x220/0x220 [ 24.809082][ T288] ? may_delete+0x533/0x760 [ 24.816689][ T288] ext4_unlink+0x142/0x3f0 [ 24.824818][ T288] vfs_unlink+0x23b/0x510 [ 24.831221][ T288] do_unlinkat+0x430/0x8b0 [ 24.837936][ T288] ? fsnotify_link_count+0x90/0x90 [ 24.845096][ T288] ? strncpy_from_user+0x18e/0x2d0 [ 24.851922][ T288] ? getname_flags+0x1fd/0x520 [ 24.857868][ T288] __x64_sys_unlink+0x49/0x50 [ 24.862999][ T288] do_syscall_64+0x34/0x70 [ 24.869308][ T288] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.875664][ T288] RIP: 0033:0x7fad822d7e57 [ 24.882652][ T288] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 24.906777][ T288] RSP: 002b:00007fff7e176fa8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 [ 24.916408][ T288] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fad822d7e57 [ 24.925639][ T288] RDX: 00007fff7e176fd0 RSI: 00007fff7e177060 RDI: 00007fff7e177060 [ 24.937504][ T288] RBP: 00007fff7e177060 R08: 0000000000000000 R09: 0000000000000000 [ 24.948952][ T288] R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff7e178150 [ 24.958881][ T288] R13: 0000555555e63700 R14: 431bde82d7b634db R15: 00007fff7e1791e0 [ 24.967053][ T288] Modules linked in: [ 24.971073][ T288] ---[ end trace a764f04daf9e4093 ]--- [ 24.976729][ T288] RIP: 0010:ext4_mark_iloc_dirty+0x3e51/0x3e60 [ 24.982929][ T288] Code: 6d ca ff e9 0f f1 ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 21 f1 ff ff 48 89 df e8 79 6e ca ff e9 14 f1 ff ff e8 1f d6 8c ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 55 48 89 e5 41 57 41 [ 25.005840][ T288] RSP: 0018:ffffc9000093f980 EFLAGS: 00010293 [ 25.012255][ T288] RAX: ffffffff81ddd2e1 RBX: 0000000000000000 RCX: ffff888120123b40 [ 25.024928][ T288] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 [ 25.033737][ T288] RBP: ffffc9000093fa90 R08: ffffffff81ddaefd R09: ffffed102203b297 [ 25.045788][ T288] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 25.055881][ T288] R13: 00000000ffffffff R14: 0000000000000207 R15: ffff888120399000 [ 25.066418][ T288] FS: 0000555555e5a380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.077619][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.085415][ T288] CR2: 0000564765ed4088 CR3: 0000000120013000 CR4: 00000000003506a0 [ 25.097276][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.106295][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.115936][ T288] Kernel panic - not syncing: Fatal exception [ 25.125351][ T288] Kernel Offset: disabled [ 25.130523][ T288] Rebooting in 86400 seconds..