./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1936651588 <...> Warning: Permanently added '10.128.0.73' (ED25519) to the list of known hosts. execve("./syz-executor1936651588", ["./syz-executor1936651588"], 0x7fff56f7eab0 /* 10 vars */) = 0 brk(NULL) = 0x5555850f8000 brk(0x5555850f8d00) = 0x5555850f8d00 arch_prctl(ARCH_SET_FS, 0x5555850f8380) = 0 set_tid_address(0x5555850f8650) = 5171 set_robust_list(0x5555850f8660, 24) = 0 rseq(0x5555850f8ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1936651588", 4096) = 28 getrandom("\xbd\xdc\xcf\x04\x7e\xc8\x26\x84", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555850f8d00 brk(0x555585119d00) = 0x555585119d00 brk(0x55558511a000) = 0x55558511a000 mprotect(0x7f0831de1000, 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 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 5172 attached , child_tidptr=0x5555850f8650) = 5172 [pid 5172] set_robust_list(0x5555850f8660, 24) = 0 [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5172] setpgid(0, 0) = 0 [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5172] write(3, "1000", 4) = 4 [pid 5172] close(3executing program ) = 0 [pid 5172] write(1, "executing program\n", 18) = 18 [pid 5172] memfd_create("syzkaller", 0) = 3 [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0829800000 [pid 5172] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 [pid 5172] munmap(0x7f0829800000, 138412032) = 0 [pid 5172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5172] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5172] close(3) = 0 [pid 5172] close(4) = 0 [pid 5172] mkdir("./file1", 0777) = 0 [ 191.096488][ T5172] loop0: detected capacity change from 0 to 32768 [ 191.146216][ T5172] JBD2: Ignoring recovery information on journal [pid 5172] mount("/dev/loop0", "./file1", "ocfs2", MS_NOATIME|MS_I_VERSION|MS_LAZYTIME, "localalloc=18446744073709551608,resv_level=00000000000000000002,heartbeat=none,coherency=buffered,er"...) = 0 [pid 5172] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5172] chdir("./file1") = 0 [pid 5172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5172] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 191.197305][ T5172] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 191.227063][ T5172] (syz-executor193,5172,1):ocfs2_get_block:148 get_block on system inode 0xffff888127980508 (17) [ 191.240695][ T5172] OCFS2: ERROR (device loop0): int __ocfs2_find_path(struct ocfs2_caching_info *, struct ocfs2_extent_list *, u32, path_insert_t *, void *): Owner 17 has empty extent list at depth 312 [ 191.259528][ T5172] On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. [ 191.269755][ T5172] OCFS2: Returning error to the calling process. [ 191.276330][ T5172] (syz-executor193,5172,1):ocfs2_find_leaf:1940 ERROR: status = -30 [ 191.284922][ T5172] (syz-executor193,5172,1):ocfs2_get_clusters_nocache:421 ERROR: status = -30 [ 191.294419][ T5172] (syz-executor193,5172,1):ocfs2_get_clusters:624 ERROR: status = -30 [ 191.303146][ T5172] (syz-executor193,5172,1):ocfs2_extent_map_get_blocks:671 ERROR: status = -30 [ 191.312450][ T5172] ===================================================== [ 191.319819][ T5172] BUG: KMSAN: uninit-value in ocfs2_get_block+0xed2/0x2710 [ 191.327264][ T5172] ocfs2_get_block+0xed2/0x2710 [ 191.332483][ T5172] do_mpage_readpage+0xc45/0x2780 [ 191.337772][ T5172] mpage_readahead+0x43f/0x840 [ 191.342933][ T5172] ocfs2_readahead+0x269/0x320 [ 191.347913][ T5172] read_pages+0x193/0x1110 [ 191.352578][ T5172] page_cache_ra_unbounded+0x901/0x9f0 [ 191.358319][ T5172] force_page_cache_ra+0x3b1/0x4b0 [ 191.363984][ T5172] generic_fadvise+0x6b0/0xa90 [ 191.369388][ T5172] __x64_sys_fadvise64+0x1fb/0x3a0 [ 191.374759][ T5172] x64_sys_call+0xe11/0x3ba0 [ 191.379734][ T5172] do_syscall_64+0xcd/0x1e0 [ 191.384460][ T5172] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.390735][ T5172] [ 191.393167][ T5172] Local variable p_blkno created at: [ 191.398562][ T5172] ocfs2_get_block+0xc7/0x2710 [ 191.403736][ T5172] do_mpage_readpage+0xc45/0x2780 [ 191.409116][ T5172] [ 191.411567][ T5172] CPU: 1 UID: 0 PID: 5172 Comm: syz-executor193 Not tainted 6.11.0-syzkaller-07341-gbaeb9a7d8b60 #0 [ 191.422657][ T5172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 191.433195][ T5172] ===================================================== [ 191.440360][ T5172] Disabling lock debugging due to kernel taint [ 191.446658][ T5172] Kernel panic - not syncing: kmsan.panic set ... [ 191.453182][ T5172] CPU: 1 UID: 0 PID: 5172 Comm: syz-executor193 Tainted: G B 6.11.0-syzkaller-07341-gbaeb9a7d8b60 #0 [ 191.465679][ T5172] Tainted: [B]=BAD_PAGE [ 191.469937][ T5172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 191.480295][ T5172] Call Trace: [ 191.483699][ T5172] [ 191.486748][ T5172] dump_stack_lvl+0x216/0x2d0 [ 191.491613][ T5172] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 191.497587][ T5172] dump_stack+0x1e/0x30 [ 191.501889][ T5172] panic+0x4e2/0xcf0 [ 191.505948][ T5172] ? kmsan_get_metadata+0x41/0x1c0 [ 191.511329][ T5172] kmsan_report+0x2c7/0x2d0 [ 191.516069][ T5172] ? __msan_warning+0x95/0x120 [ 191.521039][ T5172] ? ocfs2_get_block+0xed2/0x2710 [ 191.526469][ T5172] ? do_mpage_readpage+0xc45/0x2780 [ 191.531881][ T5172] ? mpage_readahead+0x43f/0x840 [ 191.536992][ T5172] ? ocfs2_readahead+0x269/0x320 [ 191.542094][ T5172] ? read_pages+0x193/0x1110 [ 191.546821][ T5172] ? page_cache_ra_unbounded+0x901/0x9f0 [ 191.552615][ T5172] ? force_page_cache_ra+0x3b1/0x4b0 [ 191.558094][ T5172] ? generic_fadvise+0x6b0/0xa90 [ 191.563174][ T5172] ? __x64_sys_fadvise64+0x1fb/0x3a0 [ 191.568685][ T5172] ? x64_sys_call+0xe11/0x3ba0 [ 191.573813][ T5172] ? do_syscall_64+0xcd/0x1e0 [ 191.578673][ T5172] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.585182][ T5172] ? kmsan_get_metadata+0x13e/0x1c0 [ 191.590569][ T5172] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 191.597073][ T5172] ? kmsan_get_metadata+0x13e/0x1c0 [ 191.602441][ T5172] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 191.608504][ T5172] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 191.614599][ T5172] ? kmsan_get_metadata+0x13e/0x1c0 [ 191.619973][ T5172] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 191.626463][ T5172] ? kmsan_get_metadata+0x13e/0x1c0 [ 191.631856][ T5172] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 191.637837][ T5172] __msan_warning+0x95/0x120 [ 191.642579][ T5172] ocfs2_get_block+0xed2/0x2710 [ 191.647576][ T5172] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 191.653566][ T5172] ? __pfx_ocfs2_get_block+0x10/0x10 [ 191.659024][ T5172] do_mpage_readpage+0xc45/0x2780 [ 191.664301][ T5172] mpage_readahead+0x43f/0x840 [ 191.669273][ T5172] ? __pfx_ocfs2_get_block+0x10/0x10 [ 191.674880][ T5172] ocfs2_readahead+0x269/0x320 [ 191.679795][ T5172] ? __pfx_ocfs2_readahead+0x10/0x10 [ 191.685246][ T5172] read_pages+0x193/0x1110 [ 191.689822][ T5172] ? kmsan_get_metadata+0x13e/0x1c0 [ 191.695289][ T5172] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 191.701371][ T5172] page_cache_ra_unbounded+0x901/0x9f0 [ 191.707037][ T5172] force_page_cache_ra+0x3b1/0x4b0 [ 191.712318][ T5172] generic_fadvise+0x6b0/0xa90 [ 191.717276][ T5172] __x64_sys_fadvise64+0x1fb/0x3a0 [ 191.722667][ T5172] x64_sys_call+0xe11/0x3ba0 [ 191.727572][ T5172] do_syscall_64+0xcd/0x1e0 [ 191.732333][ T5172] ? clear_bhb_loop+0x25/0x80 [ 191.737290][ T5172] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.743391][ T5172] RIP: 0033:0x7f0831d68d59 [ 191.747923][ T5172] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 191.767981][ T5172] RSP: 002b:00007ffcd3ecd038 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 191.776667][ T5172] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0831d68d59 [ 191.785059][ T5172] RDX: 00000800000020fc RSI: 0000000000000000 RDI: 0000000000000004 [ 191.793244][ T5172] RBP: 00007f0831de15f0 R08: 00005555850f94c0 R09: 00005555850f94c0 [ 191.801439][ T5172] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffcd3ecd060 [ 191.809643][ T5172] R13: 00007ffcd3ecd288 R14: 431bde82d7b634db R15: 00007f0831db203b [ 191.817998][ T5172] [ 191.821568][ T5172] Kernel Offset: disabled [ 191.826004][ T5172] Rebooting in 86400 seconds..