./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3377632291 <...> Warning: Permanently added '10.128.0.126' (ED25519) to the list of known hosts. execve("./syz-executor3377632291", ["./syz-executor3377632291"], 0x7ffcf03db6e0 /* 10 vars */) = 0 brk(NULL) = 0x55556a807000 brk(0x55556a807d00) = 0x55556a807d00 arch_prctl(ARCH_SET_FS, 0x55556a807380) = 0 set_tid_address(0x55556a807650) = 5179 set_robust_list(0x55556a807660, 24) = 0 rseq(0x55556a807ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3377632291", 4096) = 28 getrandom("\x0a\xb5\xc4\x57\x94\xe5\x3d\x6e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556a807d00 brk(0x55556a828d00) = 0x55556a828d00 brk(0x55556a829000) = 0x55556a829000 mprotect(0x7fb7fe337000, 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, child_tidptr=0x55556a807650) = 5180 ./strace-static-x86_64: Process 5180 attached [pid 5180] set_robust_list(0x55556a807660, 24) = 0 [pid 5180] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5180] setpgid(0, 0) = 0 [pid 5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5180] write(3, "1000", 4) = 4 [pid 5180] close(3executing program ) = 0 [pid 5180] write(1, "executing program\n", 18) = 18 [pid 5180] memfd_create("syzkaller", 0) = 3 [pid 5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb7f5e00000 [pid 5180] 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 5180] munmap(0x7fb7f5e00000, 138412032) = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5180] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5180] close(3) = 0 [pid 5180] close(4) = 0 [pid 5180] mkdir("./file1", 0777) = 0 [ 189.248374][ T5180] loop0: detected capacity change from 0 to 32768 [ 189.296775][ T5180] JBD2: Ignoring recovery information on journal [pid 5180] mount("/dev/loop0", "./file1", "ocfs2", MS_NOATIME|MS_I_VERSION|MS_LAZYTIME, "localalloc=18446744073709551608,resv_level=00000000000000000002,heartbeat=none,coherency=buffered,er"...) = 0 [pid 5180] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5180] chdir("./file1") = 0 [pid 5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5180] openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 189.355306][ T5180] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 189.399951][ T5180] (syz-executor337,5180,0):ocfs2_get_block:148 get_block on system inode 0xffff888120068508 (17) [ 189.413927][ T5180] 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 [ 189.432636][ T5180] On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. [ 189.443111][ T5180] OCFS2: Returning error to the calling process. [ 189.449636][ T5180] (syz-executor337,5180,0):ocfs2_find_leaf:1940 ERROR: status = -30 [ 189.458017][ T5180] (syz-executor337,5180,0):ocfs2_get_clusters_nocache:421 ERROR: status = -30 [ 189.467268][ T5180] (syz-executor337,5180,0):ocfs2_get_clusters:624 ERROR: status = -30 [ 189.475775][ T5180] (syz-executor337,5180,0):ocfs2_extent_map_get_blocks:671 ERROR: status = -30 [ 189.485109][ T5180] ===================================================== [ 189.492248][ T5180] BUG: KMSAN: uninit-value in ocfs2_get_block+0xed2/0x2710 [ 189.499728][ T5180] ocfs2_get_block+0xed2/0x2710 [ 189.504963][ T5180] do_mpage_readpage+0xc45/0x2780 [ 189.510160][ T5180] mpage_readahead+0x43f/0x840 [ 189.515205][ T5180] ocfs2_readahead+0x269/0x320 [ 189.520189][ T5180] read_pages+0x193/0x1110 [ 189.524868][ T5180] page_cache_ra_unbounded+0x901/0x9f0 [ 189.530539][ T5180] force_page_cache_ra+0x3b1/0x4b0 [ 189.535950][ T5180] generic_fadvise+0x6b0/0xa90 [ 189.540933][ T5180] __x64_sys_fadvise64+0x1fb/0x3a0 [ 189.546398][ T5180] x64_sys_call+0xe11/0x3ba0 [ 189.551203][ T5180] do_syscall_64+0xcd/0x1e0 [ 189.555976][ T5180] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.562113][ T5180] [ 189.564758][ T5180] Local variable p_blkno created at: [ 189.570157][ T5180] ocfs2_get_block+0xc7/0x2710 [ 189.575204][ T5180] do_mpage_readpage+0xc45/0x2780 [ 189.580471][ T5180] [ 189.583038][ T5180] CPU: 0 UID: 0 PID: 5180 Comm: syz-executor337 Not tainted 6.11.0-syzkaller-07341-gbaeb9a7d8b60 #0 [ 189.594109][ T5180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 189.604441][ T5180] ===================================================== [ 189.611499][ T5180] Disabling lock debugging due to kernel taint [ 189.617901][ T5180] Kernel panic - not syncing: kmsan.panic set ... [ 189.624495][ T5180] CPU: 0 UID: 0 PID: 5180 Comm: syz-executor337 Tainted: G B 6.11.0-syzkaller-07341-gbaeb9a7d8b60 #0 [ 189.636995][ T5180] Tainted: [B]=BAD_PAGE [ 189.641229][ T5180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 189.651403][ T5180] Call Trace: [ 189.654822][ T5180] [ 189.657912][ T5180] dump_stack_lvl+0x216/0x2d0 [ 189.662750][ T5180] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 189.669120][ T5180] dump_stack+0x1e/0x30 [ 189.673441][ T5180] panic+0x4e2/0xcf0 [ 189.677463][ T5180] ? kmsan_get_metadata+0x41/0x1c0 [ 189.682793][ T5180] kmsan_report+0x2c7/0x2d0 [ 189.687542][ T5180] ? __msan_warning+0x95/0x120 [ 189.692454][ T5180] ? ocfs2_get_block+0xed2/0x2710 [ 189.697622][ T5180] ? do_mpage_readpage+0xc45/0x2780 [ 189.703027][ T5180] ? mpage_readahead+0x43f/0x840 [ 189.708158][ T5180] ? ocfs2_readahead+0x269/0x320 [ 189.713364][ T5180] ? read_pages+0x193/0x1110 [ 189.718100][ T5180] ? page_cache_ra_unbounded+0x901/0x9f0 [ 189.723900][ T5180] ? force_page_cache_ra+0x3b1/0x4b0 [ 189.729348][ T5180] ? generic_fadvise+0x6b0/0xa90 [ 189.734534][ T5180] ? __x64_sys_fadvise64+0x1fb/0x3a0 [ 189.740597][ T5180] ? x64_sys_call+0xe11/0x3ba0 [ 189.745681][ T5180] ? do_syscall_64+0xcd/0x1e0 [ 189.750497][ T5180] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.756747][ T5180] ? kmsan_get_metadata+0x13e/0x1c0 [ 189.762189][ T5180] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 189.768691][ T5180] ? kmsan_get_metadata+0x13e/0x1c0 [ 189.774059][ T5180] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 189.780058][ T5180] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 189.786058][ T5180] ? kmsan_get_metadata+0x13e/0x1c0 [ 189.791425][ T5180] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 189.797928][ T5180] ? kmsan_get_metadata+0x13e/0x1c0 [ 189.803432][ T5180] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 189.809398][ T5180] __msan_warning+0x95/0x120 [ 189.814151][ T5180] ocfs2_get_block+0xed2/0x2710 [ 189.819137][ T5180] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 189.825133][ T5180] ? __pfx_ocfs2_get_block+0x10/0x10 [ 189.830571][ T5180] do_mpage_readpage+0xc45/0x2780 [ 189.835807][ T5180] mpage_readahead+0x43f/0x840 [ 189.841869][ T5180] ? __pfx_ocfs2_get_block+0x10/0x10 [ 189.847306][ T5180] ocfs2_readahead+0x269/0x320 [ 189.852215][ T5180] ? __pfx_ocfs2_readahead+0x10/0x10 [ 189.857683][ T5180] read_pages+0x193/0x1110 [ 189.862297][ T5180] ? kmsan_get_metadata+0x13e/0x1c0 [ 189.867669][ T5180] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 189.873669][ T5180] page_cache_ra_unbounded+0x901/0x9f0 [ 189.879293][ T5180] force_page_cache_ra+0x3b1/0x4b0 [ 189.884571][ T5180] generic_fadvise+0x6b0/0xa90 [ 189.889490][ T5180] __x64_sys_fadvise64+0x1fb/0x3a0 [ 189.894792][ T5180] x64_sys_call+0xe11/0x3ba0 [ 189.899535][ T5180] do_syscall_64+0xcd/0x1e0 [ 189.904196][ T5180] ? clear_bhb_loop+0x25/0x80 [ 189.909117][ T5180] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.915220][ T5180] RIP: 0033:0x7fb7fe2bed59 [ 189.919803][ T5180] 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 [ 189.939569][ T5180] RSP: 002b:00007ffe561ddbe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd [ 189.948154][ T5180] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb7fe2bed59 [ 189.956275][ T5180] RDX: 00000800000020fc RSI: 0000000000000000 RDI: 0000000000000004 [ 189.964360][ T5180] RBP: 00007fb7fe3375f0 R08: 000055556a8084c0 R09: 000055556a8084c0 [ 189.972471][ T5180] R10: 0000000000000003 R11: 0000000000000246 R12: 00007ffe561ddc10 [ 189.980604][ T5180] R13: 00007ffe561dde38 R14: 431bde82d7b634db R15: 00007fb7fe30803b [ 189.988715][ T5180] [ 189.992009][ T5180] Kernel Offset: disabled [ 189.996443][ T5180] Rebooting in 86400 seconds..