./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3617464114 <...> Warning: Permanently added '10.128.1.108' (ED25519) to the list of known hosts. execve("./syz-executor3617464114", ["./syz-executor3617464114"], 0x7ffe40d9f400 /* 10 vars */) = 0 brk(NULL) = 0x555578a76000 brk(0x555578a76d00) = 0x555578a76d00 arch_prctl(ARCH_SET_FS, 0x555578a76380) = 0 set_tid_address(0x555578a76650) = 5822 set_robust_list(0x555578a76660, 24) = 0 rseq(0x555578a76ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3617464114", 4096) = 28 getrandom("\x88\x95\x96\xac\x4c\x78\xf6\x59", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555578a76d00 brk(0x555578a97d00) = 0x555578a97d00 brk(0x555578a98000) = 0x555578a98000 mprotect(0x7f21be268000, 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.YGQ20O", 0700) = 0 chmod("./syzkaller.YGQ20O", 0777) = 0 chdir("./syzkaller.YGQ20O") = 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./strace-static-x86_64: Process 5823 attached [pid 5823] set_robust_list(0x555578a76660, 24) = 0 [pid 5822] <... clone resumed>, child_tidptr=0x555578a76650) = 5823 [pid 5823] chdir("./0") = 0 [pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5823] setpgid(0, 0) = 0 [pid 5823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1000", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5823] write(1, "executing program\n", 18executing program ) = 18 [pid 5823] memfd_create("syzkaller", 0) = 3 [pid 5823] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f21b5c00000 [pid 5823] write(3, "\xeb\x76\x90\x45\x58\x46\x41\x54\x20\x20\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x08\x00\x00\x00\x88\x00\x00\x00\x0f\x00\x00\x00\x05\x00\x00\x00"..., 131072) = 131072 [pid 5823] munmap(0x7f21b5c00000, 138412032) = 0 [pid 5823] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5823] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5823] close(3) = 0 [pid 5823] close(4) = 0 [pid 5823] mkdir("./file1", 0777) = 0 [pid 5823] mount("/dev/loop0", "./file1", "exfat", 0, "") = 0 [pid 5823] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5823] chdir("./file1") = 0 [pid 5823] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 62.962689][ T5823] loop0: detected capacity change from 0 to 256 [ 62.988362][ T5823] exFAT-fs (loop0): failed to load upcase table (idx : 0x000104d0, chksum : 0x60d18cb2, utbl_chksum : 0xe619d30d) [pid 5823] openat(AT_FDCWD, "pids.events", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EROFS (Read-only file system) [pid 5823] exit_group(0) = ? [pid 5823] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5823, si_uid=0, si_status=0, si_utime=0, si_stime=3 /* 0.03 s */} --- 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, 0x555578a776f0 /* 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 [ 63.007603][ T5823] exFAT-fs (loop0): error, in sector 160, dentry 11 should be unused, but 0xc1 [ 63.017294][ T5823] exFAT-fs (loop0): Filesystem has been set read-only [ 63.065092][ T5822] ------------[ cut here ]------------ [ 63.070635][ T5822] VFS: brelse: Trying to free free buffer [ 63.076440][ T5822] WARNING: CPU: 0 PID: 5822 at fs/buffer.c:1229 invalidate_bh_lru+0x102/0x1b0 [ 63.085307][ T5822] Modules linked in: [ 63.089209][ T5822] CPU: 0 UID: 0 PID: 5822 Comm: syz-executor361 Not tainted 6.12.0-syzkaller-12128-gf788b5ef1ca9 #0 [ 63.099988][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 63.110056][ T5822] RIP: 0010:invalidate_bh_lru+0x102/0x1b0 [ 63.115774][ T5822] Code: 44 f4 da ff f0 ff 0b eb 25 e8 9a 35 73 ff 41 80 3c 2e 00 75 2a eb 30 e8 8c 35 73 ff 90 48 c7 c7 a0 ce 18 8c e8 3f dc 33 ff 90 <0f> 0b 90 90 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c [ 63.135372][ T5822] RSP: 0018:ffffc90003e978c8 EFLAGS: 00010046 [ 63.141427][ T5822] RAX: 5ab5e72b44a27e00 RBX: ffff888072c3a970 RCX: ffff88807ea6bc00 [ 63.149384][ T5822] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 63.157341][ T5822] RBP: 0000000000000000 R08: ffffffff81601b22 R09: 1ffff110170c519a [ 63.165302][ T5822] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff8880b8639838 [ 63.173292][ T5822] R13: 0000000000000018 R14: 1ffff110170c730a R15: ffff8880b8639850 [ 63.181253][ T5822] FS: 0000555578a76380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 63.190169][ T5822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.196830][ T5822] CR2: 0000555578a7f6f8 CR3: 0000000077074000 CR4: 00000000003526f0 [ 63.204788][ T5822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.212756][ T5822] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.220728][ T5822] Call Trace: [ 63.224004][ T5822] [ 63.226929][ T5822] ? __warn+0x165/0x4d0 [ 63.231075][ T5822] ? invalidate_bh_lru+0x102/0x1b0 [ 63.236176][ T5822] ? report_bug+0x2b3/0x500 [ 63.240676][ T5822] ? invalidate_bh_lru+0x102/0x1b0 [ 63.245776][ T5822] ? handle_bug+0x60/0x90 [ 63.250102][ T5822] ? exc_invalid_op+0x1a/0x50 [ 63.254769][ T5822] ? asm_exc_invalid_op+0x1a/0x20 [ 63.259818][ T5822] ? __warn_printk+0x292/0x360 [ 63.264595][ T5822] ? invalidate_bh_lru+0x102/0x1b0 [ 63.269727][ T5822] ? invalidate_bh_lru+0x101/0x1b0 [ 63.274838][ T5822] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 63.280294][ T5822] smp_call_function_many_cond+0x1760/0x2c60 [ 63.286267][ T5822] ? __pfx_has_bh_in_lru+0x10/0x10 [ 63.291388][ T5822] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 63.296847][ T5822] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 63.303169][ T5822] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 63.308621][ T5822] ? __pfx_has_bh_in_lru+0x10/0x10 [ 63.313727][ T5822] on_each_cpu_cond_mask+0x3f/0x80 [ 63.318835][ T5822] blkdev_flush_mapping+0xfe/0x270 [ 63.323948][ T5822] ? bdev_release+0x456/0x700 [ 63.328613][ T5822] bdev_release+0x460/0x700 [ 63.333128][ T5822] blkdev_release+0x15/0x20 [ 63.337620][ T5822] ? __pfx_blkdev_release+0x10/0x10 [ 63.342802][ T5822] __fput+0x23c/0xa50 [ 63.346781][ T5822] task_work_run+0x24f/0x310 [ 63.351363][ T5822] ? __pfx_task_work_run+0x10/0x10 [ 63.356462][ T5822] ? path_umount+0x284/0xf70 [ 63.361047][ T5822] ptrace_notify+0x2d2/0x380 [ 63.365635][ T5822] ? __pfx_ptrace_notify+0x10/0x10 [ 63.370732][ T5822] ? kmem_cache_free+0x195/0x410 [ 63.375657][ T5822] ? __x64_sys_umount+0x123/0x170 [ 63.380665][ T5822] syscall_exit_work+0xc7/0x1d0 [ 63.385519][ T5822] syscall_exit_to_user_mode+0x24a/0x340 [ 63.391143][ T5822] do_syscall_64+0x100/0x230 [ 63.395724][ T5822] ? clear_bhb_loop+0x35/0x90 [ 63.400397][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.406277][ T5822] RIP: 0033:0x7f21be1f43c7 [ 63.410694][ T5822] 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 [ 63.430292][ T5822] RSP: 002b:00007fff60d3aad8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 63.438696][ T5822] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f21be1f43c7 [ 63.446674][ T5822] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff60d3ab90 [ 63.454630][ T5822] RBP: 00007fff60d3ab90 R08: 0000000000000000 R09: 0000000000000000 [ 63.462584][ T5822] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff60d3bbf0 [ 63.470543][ T5822] R13: 0000555578a776c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 63.478533][ T5822] [ 63.481552][ T5822] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 63.488827][ T5822] CPU: 0 UID: 0 PID: 5822 Comm: syz-executor361 Not tainted 6.12.0-syzkaller-12128-gf788b5ef1ca9 #0 [ 63.499567][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 63.509604][ T5822] Call Trace: [ 63.512868][ T5822] [ 63.515961][ T5822] dump_stack_lvl+0x241/0x360 [ 63.520629][ T5822] ? __pfx_dump_stack_lvl+0x10/0x10 [ 63.525818][ T5822] ? __pfx__printk+0x10/0x10 [ 63.530392][ T5822] ? _printk+0xd5/0x120 [ 63.534533][ T5822] ? __init_begin+0x41000/0x41000 [ 63.539542][ T5822] ? vscnprintf+0x5d/0x90 [ 63.543853][ T5822] panic+0x349/0x880 [ 63.547756][ T5822] ? __warn+0x174/0x4d0 [ 63.551901][ T5822] ? __pfx_panic+0x10/0x10 [ 63.556320][ T5822] __warn+0x344/0x4d0 [ 63.560295][ T5822] ? invalidate_bh_lru+0x102/0x1b0 [ 63.565396][ T5822] report_bug+0x2b3/0x500 [ 63.569712][ T5822] ? invalidate_bh_lru+0x102/0x1b0 [ 63.574814][ T5822] handle_bug+0x60/0x90 [ 63.578958][ T5822] exc_invalid_op+0x1a/0x50 [ 63.583446][ T5822] asm_exc_invalid_op+0x1a/0x20 [ 63.588285][ T5822] RIP: 0010:invalidate_bh_lru+0x102/0x1b0 [ 63.593989][ T5822] Code: 44 f4 da ff f0 ff 0b eb 25 e8 9a 35 73 ff 41 80 3c 2e 00 75 2a eb 30 e8 8c 35 73 ff 90 48 c7 c7 a0 ce 18 8c e8 3f dc 33 ff 90 <0f> 0b 90 90 48 bd 00 00 00 00 00 fc ff df 41 80 3c 2e 00 74 08 4c [ 63.613578][ T5822] RSP: 0018:ffffc90003e978c8 EFLAGS: 00010046 [ 63.619634][ T5822] RAX: 5ab5e72b44a27e00 RBX: ffff888072c3a970 RCX: ffff88807ea6bc00 [ 63.627592][ T5822] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 63.635555][ T5822] RBP: 0000000000000000 R08: ffffffff81601b22 R09: 1ffff110170c519a [ 63.643509][ T5822] R10: dffffc0000000000 R11: ffffed10170c519b R12: ffff8880b8639838 [ 63.651466][ T5822] R13: 0000000000000018 R14: 1ffff110170c730a R15: ffff8880b8639850 [ 63.659426][ T5822] ? __warn_printk+0x292/0x360 [ 63.664181][ T5822] ? invalidate_bh_lru+0x101/0x1b0 [ 63.669277][ T5822] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 63.674751][ T5822] smp_call_function_many_cond+0x1760/0x2c60 [ 63.680725][ T5822] ? __pfx_has_bh_in_lru+0x10/0x10 [ 63.685822][ T5822] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 63.691273][ T5822] ? __pfx_smp_call_function_many_cond+0x10/0x10 [ 63.697591][ T5822] ? __pfx_invalidate_bh_lru+0x10/0x10 [ 63.703042][ T5822] ? __pfx_has_bh_in_lru+0x10/0x10 [ 63.708138][ T5822] on_each_cpu_cond_mask+0x3f/0x80 [ 63.713233][ T5822] blkdev_flush_mapping+0xfe/0x270 [ 63.718330][ T5822] ? bdev_release+0x456/0x700 [ 63.722993][ T5822] bdev_release+0x460/0x700 [ 63.727489][ T5822] blkdev_release+0x15/0x20 [ 63.731976][ T5822] ? __pfx_blkdev_release+0x10/0x10 [ 63.737160][ T5822] __fput+0x23c/0xa50 [ 63.741133][ T5822] task_work_run+0x24f/0x310 [ 63.745733][ T5822] ? __pfx_task_work_run+0x10/0x10 [ 63.750856][ T5822] ? path_umount+0x284/0xf70 [ 63.755447][ T5822] ptrace_notify+0x2d2/0x380 [ 63.760038][ T5822] ? __pfx_ptrace_notify+0x10/0x10 [ 63.765148][ T5822] ? kmem_cache_free+0x195/0x410 [ 63.770098][ T5822] ? __x64_sys_umount+0x123/0x170 [ 63.775119][ T5822] syscall_exit_work+0xc7/0x1d0 [ 63.779969][ T5822] syscall_exit_to_user_mode+0x24a/0x340 [ 63.785596][ T5822] do_syscall_64+0x100/0x230 [ 63.790176][ T5822] ? clear_bhb_loop+0x35/0x90 [ 63.794843][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.800724][ T5822] RIP: 0033:0x7f21be1f43c7 [ 63.805126][ T5822] 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 [ 63.824728][ T5822] RSP: 002b:00007fff60d3aad8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 63.833151][ T5822] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f21be1f43c7 [ 63.841111][ T5822] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff60d3ab90 [ 63.849068][ T5822] RBP: 00007fff60d3ab90 R08: 0000000000000000 R09: 0000000000000000 [ 63.857023][ T5822] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007fff60d3bbf0 [ 63.864984][ T5822] R13: 0000555578a776c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 63.872948][ T5822] [ 63.876117][ T5822] Kernel Offset: disabled [ 63.880465][ T5822] Rebooting in 86400 seconds..