./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3551898874 <...> Warning: Permanently added '10.128.0.75' (ED25519) to the list of known hosts. execve("./syz-executor3551898874", ["./syz-executor3551898874"], 0x7ffce91d3740 /* 10 vars */) = 0 brk(NULL) = 0x55556ba4b000 brk(0x55556ba4bd00) = 0x55556ba4bd00 arch_prctl(ARCH_SET_FS, 0x55556ba4b380) = 0 set_tid_address(0x55556ba4b650) = 5085 set_robust_list(0x55556ba4b660, 24) = 0 rseq(0x55556ba4bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3551898874", 4096) = 28 getrandom("\x99\xd5\x3b\xcb\x68\x85\xf5\x17", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556ba4bd00 brk(0x55556ba6cd00) = 0x55556ba6cd00 brk(0x55556ba6d000) = 0x55556ba6d000 mprotect(0x7fd2ac7ff000, 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.zUgeki", 0700) = 0 chmod("./syzkaller.zUgeki", 0777) = 0 chdir("./syzkaller.zUgeki") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 106.805617][ T28] audit: type=1400 audit(1714708372.113:87): avc: denied { execmem } for pid=5085 comm="syz-executor355" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 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./strace-static-x86_64: Process 5086 attached [pid 5086] set_robust_list(0x55556ba4b660, 24 [pid 5085] <... clone resumed>, child_tidptr=0x55556ba4b650) = 5086 [pid 5086] <... set_robust_list resumed>) = 0 [pid 5086] chdir("./0") = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setpgid(0, 0) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5086] memfd_create("syzkaller", 0) = 3 [ 106.860646][ T28] audit: type=1400 audit(1714708372.173:88): avc: denied { read write } for pid=5085 comm="syz-executor355" name="loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 106.886728][ T28] audit: type=1400 audit(1714708372.173:89): avc: denied { open } for pid=5085 comm="syz-executor355" path="/dev/loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd2a4200000 [ 106.927441][ T28] audit: type=1400 audit(1714708372.183:90): avc: denied { ioctl } for pid=5085 comm="syz-executor355" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5086] 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"..., 16777216) = 16777216 [pid 5086] munmap(0x7fd2a4200000, 138412032) = 0 [pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5086] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5086] close(3) = 0 [pid 5086] close(4) = 0 [pid 5086] mkdir("./bus", 0777) = 0 [pid 5086] mount("/dev/loop0", "./bus", "jfs", MS_NOSUID|MS_LAZYTIME, "") = 0 [ 107.254646][ T5086] loop0: detected capacity change from 0 to 32768 [ 107.276580][ T28] audit: type=1400 audit(1714708372.583:91): avc: denied { mounton } for pid=5086 comm="syz-executor355" path="/root/syzkaller.zUgeki/0/bus" dev="sda1" ino=1930 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 5086] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5086] chdir("./bus") = 0 [pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5086] mkdir("./file1", 000) = 0 [ 107.325986][ T28] audit: type=1400 audit(1714708372.633:92): avc: denied { mount } for pid=5086 comm="syz-executor355" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 107.348797][ T28] audit: type=1400 audit(1714708372.633:93): avc: denied { write } for pid=5086 comm="syz-executor355" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [pid 5086] mkdir("./bus", 0600) = 0 [pid 5086] mkdir("./file0", 000) = 0 [pid 5086] mount(NULL, "./file0", "ramfs", 0, NULL) = 0 [pid 5086] exit_group(0) = ? [pid 5086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=29 /* 0.29 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 [ 107.371955][ T28] audit: type=1400 audit(1714708372.633:94): avc: denied { add_name } for pid=5086 comm="syz-executor355" name="file1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 107.393977][ T28] audit: type=1400 audit(1714708372.633:95): avc: denied { create } for pid=5086 comm="syz-executor355" name="file1" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=dir permissive=1 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, 0x55556ba4c6f0 /* 4 entries */, 32768) = 104 umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) newfstatat(AT_FDCWD, "./0/bus", {st_mode=S_IFDIR|0755, st_size=64, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [ 107.420020][ T28] audit: type=1400 audit(1714708372.733:96): avc: denied { mounton } for pid=5086 comm="syz-executor355" path="/root/syzkaller.zUgeki/0/bus/file0" dev="loop0" ino=8 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=dir permissive=1 openat(AT_FDCWD, "./0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0755, st_size=64, ...}, AT_EMPTY_PATH) = 0 [ 107.504725][ T5085] ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 [ 107.504725][ T5085] [ 107.517338][ T5085] ERROR: (device loop0): remounting filesystem as read-only [ 107.524854][ T5085] ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 3 [ 107.524854][ T5085] [ 107.536173][ T5085] ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 4 [ 107.536173][ T5085] getdents64(4, 0x55556ba54730 /* 4 entries */, 32768) = 112 umount2("./0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = 0 umount2("./0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/bus/file0", {st_mode=S_IFDIR|000, st_size=1, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/bus/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 newfstatat(5, "", {st_mode=S_IFDIR|000, st_size=1, ...}, AT_EMPTY_PATH) = 0 getdents64(5, 0x55556ba5c770 /* 2 entries */, 32768) = 48 getdents64(5, 0x55556ba5c770 /* 0 entries */, 32768) = 0 close(5) = 0 rmdir("./0/bus/file0") = -1 EROFS (Read-only file system) [ 107.547457][ T5085] ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 5 [ 107.547457][ T5085] [ 107.559196][ T5085] ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 6 [ 107.559196][ T5085] [ 107.570520][ T5085] ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 7 [ 107.570520][ T5085] umount2("./0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/bus/file0", {st_mode=S_IFDIR|000, st_size=1, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/bus/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 newfstatat(5, "", {st_mode=S_IFDIR|000, st_size=1, ...}, AT_EMPTY_PATH) = 0 getdents64(5, 0x55556ba5c770 /* 2 entries */, 32768) = 48 getdents64(5, 0x55556ba5c770 /* 0 entries */, 32768) = 0 close(5) = 0 rmdir("./0/bus/file0") = -1 EROFS (Read-only file system) getdents64(4, 0x55556ba54730 /* 0 entries */, 32768) = 0 close(4) = 0 rmdir("./0/bus") = -1 EBUSY (Device or resource busy) [ 107.730781][ T5085] ================================================================== [ 107.738889][ T5085] BUG: KASAN: user-memory-access in __destroy_inode+0x3bc/0x750 [ 107.746555][ T5085] Write of size 4 at addr 0000000b00000000 by task syz-executor355/5085 [ 107.754919][ T5085] [ 107.757247][ T5085] CPU: 0 PID: 5085 Comm: syz-executor355 Not tainted 6.9.0-rc6-syzkaller-00113-g49a73b1652c5 #0 [ 107.768049][ T5085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 107.778117][ T5085] Call Trace: [ 107.781400][ T5085] [ 107.784345][ T5085] dump_stack_lvl+0x116/0x1f0 [ 107.789083][ T5085] kasan_report+0xd9/0x110 [ 107.793512][ T5085] ? __destroy_inode+0x3bc/0x750 [ 107.798473][ T5085] ? __destroy_inode+0x3bc/0x750 [ 107.803521][ T5085] kasan_check_range+0xef/0x1a0 [ 107.808491][ T5085] __destroy_inode+0x3bc/0x750 [ 107.813294][ T5085] destroy_inode+0x91/0x1b0 [ 107.817850][ T5085] dispose_list+0x117/0x1e0 [ 107.822369][ T5085] evict_inodes+0x34e/0x450 [ 107.826884][ T5085] ? __pfx_evict_inodes+0x10/0x10 [ 107.831926][ T5085] ? shrink_dcache_for_umount+0x17e/0x390 [ 107.837668][ T5085] generic_shutdown_super+0xb5/0x3d0 [ 107.842975][ T5085] kill_block_super+0x3b/0x90 [ 107.847667][ T5085] deactivate_locked_super+0xbe/0x1a0 [ 107.853059][ T5085] deactivate_super+0xde/0x100 [ 107.857861][ T5085] cleanup_mnt+0x222/0x450 [ 107.862304][ T5085] task_work_run+0x14e/0x250 [ 107.866930][ T5085] ? __pfx_task_work_run+0x10/0x10 [ 107.872053][ T5085] ptrace_notify+0x10e/0x130 [ 107.876659][ T5085] syscall_exit_to_user_mode_prepare+0x126/0x260 [ 107.883002][ T5085] syscall_exit_to_user_mode+0x11/0x2a0 [ 107.888583][ T5085] do_syscall_64+0xdc/0x260 [ 107.893095][ T5085] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 107.899015][ T5085] RIP: 0033:0x7fd2ac7863c7 [ 107.903434][ T5085] 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 [ 107.923050][ T5085] RSP: 002b:00007ffc66199398 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 107.931480][ T5085] RAX: 0000000000000000 RBX: 000055556ba4b338 RCX: 00007fd2ac7863c7 [ 107.939558][ T5085] RDX: 00000000000108d0 RSI: 0000000000000009 RDI: 00007ffc6619a540 [ 107.947550][ T5085] RBP: 0000000000000064 R08: 000055556ba5c79b R09: 0000000000000000 [ 107.955538][ T5085] R10: 0000000000001000 R11: 0000000000000246 R12: 00007ffc6619a540 [ 107.963516][ T5085] R13: 000055556ba54700 R14: 0000000000000001 R15: 431bde82d7b634db [ 107.971509][ T5085] [ 107.974530][ T5085] ================================================================== [ 107.982732][ T5085] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 107.989959][ T5085] CPU: 0 PID: 5085 Comm: syz-executor355 Not tainted 6.9.0-rc6-syzkaller-00113-g49a73b1652c5 #0 [ 108.000398][ T5085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 108.010503][ T5085] Call Trace: [ 108.013853][ T5085] [ 108.016812][ T5085] dump_stack_lvl+0x3d/0x1f0 [ 108.021451][ T5085] panic+0x6f5/0x7a0 [ 108.025390][ T5085] ? __pfx_panic+0x10/0x10 [ 108.029848][ T5085] ? check_panic_on_warn+0x1f/0xb0 [ 108.034983][ T5085] check_panic_on_warn+0xab/0xb0 [ 108.039942][ T5085] end_report+0x117/0x180 [ 108.044298][ T5085] kasan_report+0xe9/0x110 [ 108.048739][ T5085] ? __destroy_inode+0x3bc/0x750 [ 108.053737][ T5085] ? __destroy_inode+0x3bc/0x750 [ 108.058729][ T5085] kasan_check_range+0xef/0x1a0 [ 108.063693][ T5085] __destroy_inode+0x3bc/0x750 [ 108.068494][ T5085] destroy_inode+0x91/0x1b0 [ 108.073042][ T5085] dispose_list+0x117/0x1e0 [ 108.077566][ T5085] evict_inodes+0x34e/0x450 [ 108.082173][ T5085] ? __pfx_evict_inodes+0x10/0x10 [ 108.087216][ T5085] ? shrink_dcache_for_umount+0x17e/0x390 [ 108.092978][ T5085] generic_shutdown_super+0xb5/0x3d0 [ 108.098318][ T5085] kill_block_super+0x3b/0x90 [ 108.103024][ T5085] deactivate_locked_super+0xbe/0x1a0 [ 108.108430][ T5085] deactivate_super+0xde/0x100 [ 108.113316][ T5085] cleanup_mnt+0x222/0x450 [ 108.117767][ T5085] task_work_run+0x14e/0x250 [ 108.122394][ T5085] ? __pfx_task_work_run+0x10/0x10 [ 108.127547][ T5085] ptrace_notify+0x10e/0x130 [ 108.132168][ T5085] syscall_exit_to_user_mode_prepare+0x126/0x260 [ 108.138522][ T5085] syscall_exit_to_user_mode+0x11/0x2a0 [ 108.144108][ T5085] do_syscall_64+0xdc/0x260 [ 108.148631][ T5085] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 108.154572][ T5085] RIP: 0033:0x7fd2ac7863c7 [ 108.159001][ T5085] 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 [ 108.178626][ T5085] RSP: 002b:00007ffc66199398 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 108.187062][ T5085] RAX: 0000000000000000 RBX: 000055556ba4b338 RCX: 00007fd2ac7863c7 [ 108.195049][ T5085] RDX: 00000000000108d0 RSI: 0000000000000009 RDI: 00007ffc6619a540 [ 108.203063][ T5085] RBP: 0000000000000064 R08: 000055556ba5c79b R09: 0000000000000000 [ 108.211049][ T5085] R10: 0000000000001000 R11: 0000000000000246 R12: 00007ffc6619a540 [ 108.219036][ T5085] R13: 000055556ba54700 R14: 0000000000000001 R15: 431bde82d7b634db [ 108.227023][ T5085] [ 108.230299][ T5085] Kernel Offset: disabled [ 108.234642][ T5085] Rebooting in 86400 seconds..