./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3141085860 <...> Warning: Permanently added '10.128.0.209' (ED25519) to the list of known hosts. execve("./syz-executor3141085860", ["./syz-executor3141085860"], 0x7fff93711c80 /* 10 vars */) = 0 brk(NULL) = 0x55557975a000 brk(0x55557975ad00) = 0x55557975ad00 arch_prctl(ARCH_SET_FS, 0x55557975a380) = 0 set_tid_address(0x55557975a650) = 5226 set_robust_list(0x55557975a660, 24) = 0 rseq(0x55557975aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3141085860", 4096) = 28 getrandom("\x08\x54\x7f\x39\x07\x97\xc7\xff", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557975ad00 brk(0x55557977bd00) = 0x55557977bd00 brk(0x55557977c000) = 0x55557977c000 mprotect(0x7f53b2c23000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5227 attached [pid 5227] set_robust_list(0x55557975a660, 24 [pid 5226] <... clone resumed>, child_tidptr=0x55557975a650) = 5227 [pid 5227] <... set_robust_list resumed>) = 0 [pid 5226] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "10000000000", 11) = 11 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "20", 2) = 2 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "1", 1) = 1 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "0", 1) = 1 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "0", 1) = 1 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "1", 1) = 1 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "100", 3) = 3 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "0", 1) = 1 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "0", 1) = 1 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "7 4 1 3", 7) = 7 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "1", 1) = 1 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "1", 1) = 1 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "0", 1) = 1 [pid 5226] close(3) = 0 [pid 5226] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5226] write(3, "5227", 4) = 4 [pid 5226] close(3) = 0 [pid 5226] kill(5227, SIGKILL) = 0 [pid 5227] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5227, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=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 5228 attached [pid 5228] set_robust_list(0x55557975a660, 24 [pid 5226] <... clone resumed>, child_tidptr=0x55557975a650) = 5228 [pid 5228] <... set_robust_list resumed>) = 0 [pid 5228] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5228] setpgid(0, 0) = 0 [pid 5228] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program ) = 3 [pid 5228] write(3, "1000", 4) = 4 [pid 5228] close(3) = 0 [pid 5228] write(1, "executing program\n", 18) = 18 [pid 5228] memfd_create("syzkaller", 0) = 3 [pid 5228] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f53aa600000 [pid 5228] 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 5228] munmap(0x7f53aa600000, 138412032) = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5228] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5228] close(3) = 0 [pid 5228] close(4) = 0 [pid 5228] mkdir("./file1", 0777) = 0 syzkaller login: [ 56.103766][ T5228] loop0: detected capacity change from 0 to 32768 [ 56.127469][ T5228] ======================================================= [ 56.127469][ T5228] WARNING: The mand mount option has been deprecated and [ 56.127469][ T5228] and is ignored by this kernel. Remove the mand [ 56.127469][ T5228] option from the mount to silence this warning. [ 56.127469][ T5228] ======================================================= [ 56.175285][ T5228] JBD2: Ignoring recovery information on journal [pid 5228] mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,dir_resv_level=00003,coherency=full,coherency=full,localflocks,coherency=full,noa"...) = 0 [pid 5228] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5228] chdir("./file1") = 0 [pid 5228] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 56.199348][ T5228] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 56.213439][ T5228] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI [ 56.226024][ T5228] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 56.234427][ T5228] CPU: 0 UID: 0 PID: 5228 Comm: syz-executor314 Not tainted 6.12.0-rc2-syzkaller-00205-g1d227fcc7222 #0 [ 56.245513][ T5228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 56.255557][ T5228] RIP: 0010:ocfs2_prepare_dir_for_insert+0x3305/0x5c60 [ 56.262418][ T5228] Code: 00 00 e8 6e 19 10 fe e9 ba 06 00 00 e8 64 19 10 fe e9 4f 01 00 00 e8 5a 19 10 fe 49 8d 7f 08 49 8d 5f 09 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 bd 23 00 00 48 89 d8 48 c1 e8 03 42 0f [ 56.282008][ T5228] RSP: 0018:ffffc9000363eb00 EFLAGS: 00010202 [ 56.288069][ T5228] RAX: 0000000000000001 RBX: 0000000000000009 RCX: ffff88802e20da00 [ 56.296025][ T5228] RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000008 [ 56.303978][ T5228] RBP: ffffc9000363f310 R08: ffffffff8384a0db R09: ffffffff8384f817 [ 56.311934][ T5228] R10: 0000000000000002 R11: ffff88802e20da00 R12: dffffc0000000000 [ 56.319889][ T5228] R13: ffff88807d3a8878 R14: 0000000000047c88 R15: 0000000000000000 [ 56.327846][ T5228] FS: 000055557975a380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 56.336763][ T5228] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.343331][ T5228] CR2: 00007ffe80e43be8 CR3: 0000000028a78000 CR4: 00000000003526f0 [ 56.351289][ T5228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.359243][ T5228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.367198][ T5228] Call Trace: [ 56.370461][ T5228] [ 56.373379][ T5228] ? __die_body+0x5f/0xb0 [ 56.377705][ T5228] ? die_addr+0xb0/0xe0 [ 56.381846][ T5228] ? exc_general_protection+0x3dd/0x5d0 [ 56.387390][ T5228] ? asm_exc_general_protection+0x26/0x30 [ 56.393099][ T5228] ? ocfs2_dx_dir_name_hash+0xf7/0xc40 [ 56.398550][ T5228] ? ocfs2_prepare_dir_for_insert+0x62b/0x5c60 [ 56.404698][ T5228] ? ocfs2_prepare_dir_for_insert+0x3305/0x5c60 [ 56.410928][ T5228] ? ocfs2_buffer_cached+0x47e/0x840 [ 56.416199][ T5228] ? __pfx_lock_release+0x10/0x10 [ 56.421214][ T5228] ? __pfx_ocfs2_validate_inode_block+0x10/0x10 [ 56.427442][ T5228] ? __pfx_ocfs2_read_blocks+0x10/0x10 [ 56.432887][ T5228] ? __pfx_ocfs2_prepare_dir_for_insert+0x10/0x10 [ 56.439291][ T5228] ? rcu_is_watching+0x15/0xb0 [ 56.444039][ T5228] ? ocfs2_search_dirblock+0x376/0x830 [ 56.449481][ T5228] ? ocfs2_set_buffer_uptodate+0xb5/0x1350 [ 56.455272][ T5228] ? ocfs2_read_inode_block+0x14c/0x1e0 [ 56.460805][ T5228] ? __pfx_ocfs2_search_dirblock+0x10/0x10 [ 56.466598][ T5228] ? __mutex_unlock_slowpath+0x21d/0x750 [ 56.472216][ T5228] ? __brelse+0x59/0xa0 [ 56.476358][ T5228] ? ocfs2_find_entry+0x102f/0x2780 [ 56.481544][ T5228] ? rcu_is_watching+0x15/0xb0 [ 56.486297][ T5228] ? ocfs2_buffer_cached+0x47e/0x840 [ 56.491589][ T5228] ? rcu_is_watching+0x15/0xb0 [ 56.496359][ T5228] ? ocfs2_read_blocks+0x123a/0x1600 [ 56.501643][ T5228] ? __pfx_ocfs2_find_entry+0x10/0x10 [ 56.507010][ T5228] ? __pfx_ocfs2_validate_inode_block+0x10/0x10 [ 56.513245][ T5228] ? __pfx_ocfs2_read_blocks+0x10/0x10 [ 56.518701][ T5228] ? __pfx_lock_acquire+0x10/0x10 [ 56.523722][ T5228] ? ocfs2_inode_lock_full_nested+0x17b/0x1c30 [ 56.529868][ T5228] ? ocfs2_read_inode_block+0x14c/0x1e0 [ 56.535400][ T5228] ? __pfx_ocfs2_read_inode_block+0x10/0x10 [ 56.541279][ T5228] ? do_raw_spin_unlock+0x13c/0x8b0 [ 56.546466][ T5228] ? ocfs2_inode_lock_full_nested+0xb29/0x1c30 [ 56.552609][ T5228] ? __pfx_ocfs2_inode_lock_full_nested+0x10/0x10 [ 56.559012][ T5228] ? __asan_memset+0x23/0x50 [ 56.563597][ T5228] ? ocfs2_check_dir_for_entry+0x2c9/0x4a0 [ 56.569394][ T5228] ? __pfx_ocfs2_check_dir_for_entry+0x10/0x10 [ 56.575540][ T5228] ? ocfs2_mknod+0x2c7/0x2b40 [ 56.580208][ T5228] ocfs2_mknod+0xcaf/0x2b40 [ 56.584697][ T5228] ? __pfx_validate_chain+0x10/0x10 [ 56.589887][ T5228] ? __pfx_ocfs2_mknod+0x10/0x10 [ 56.594816][ T5228] ? __lock_acquire+0x1384/0x2050 [ 56.599837][ T5228] ? __pfx_lock_acquire+0x10/0x10 [ 56.604851][ T5228] ? ocfs2_inode_unlock+0xa7/0x150 [ 56.609946][ T5228] ? __pfx_lock_release+0x10/0x10 [ 56.614959][ T5228] ? do_raw_spin_lock+0x14f/0x370 [ 56.620074][ T5228] ? do_raw_spin_unlock+0x13c/0x8b0 [ 56.625269][ T5228] ? _raw_spin_unlock+0x28/0x50 [ 56.630109][ T5228] ? rcu_is_watching+0x15/0xb0 [ 56.634861][ T5228] ? ocfs2_lookup+0x503/0xa60 [ 56.639530][ T5228] ocfs2_create+0x1ab/0x480 [ 56.644038][ T5228] ? __pfx_ocfs2_create+0x10/0x10 [ 56.649063][ T5228] ? bpf_lsm_inode_create+0x9/0x10 [ 56.654165][ T5228] ? security_inode_create+0xbe/0x340 [ 56.659526][ T5228] ? __pfx_ocfs2_create+0x10/0x10 [ 56.664545][ T5228] path_openat+0x1c03/0x3590 [ 56.669139][ T5228] ? __pfx_path_openat+0x10/0x10 [ 56.674073][ T5228] do_filp_open+0x235/0x490 [ 56.678567][ T5228] ? __pfx_do_filp_open+0x10/0x10 [ 56.683588][ T5228] ? _raw_spin_unlock+0x28/0x50 [ 56.688428][ T5228] ? alloc_fd+0x5a1/0x640 [ 56.692750][ T5228] do_sys_openat2+0x13e/0x1d0 [ 56.697413][ T5228] ? __pfx_do_sys_openat2+0x10/0x10 [ 56.702595][ T5228] ? lockdep_hardirqs_on+0x99/0x150 [ 56.707784][ T5228] ? _raw_spin_unlock_irq+0x2e/0x50 [ 56.712971][ T5228] ? ptrace_notify+0x279/0x380 [ 56.717722][ T5228] __x64_sys_openat+0x247/0x2a0 [ 56.722561][ T5228] ? __pfx___x64_sys_openat+0x10/0x10 [ 56.727920][ T5228] ? do_syscall_64+0x100/0x230 [ 56.732672][ T5228] do_syscall_64+0xf3/0x230 [ 56.737161][ T5228] ? clear_bhb_loop+0x35/0x90 [ 56.741822][ T5228] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 56.747708][ T5228] RIP: 0033:0x7f53b2babd49 [ 56.752206][ T5228] 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 [ 56.771796][ T5228] RSP: 002b:00007fff46a925b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 56.780198][ T5228] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f53b2babd49 [ 56.788153][ T5228] RDX: 000000000000275a RSI: 0000000020000180 RDI: 00000000ffffff9c [ 56.796110][ T5228] RBP: 000000000000146b R08: 0000000000004433 R09: 0000000000000000 [ 56.804065][ T5228] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff46a92600 [ 56.812021][ T5228] R13: 00007fff46a926e0 R14: 431bde82d7b634db R15: 00007f53b2bf401d [ 56.819984][ T5228] [ 56.822989][ T5228] Modules linked in: [ 56.827080][ T5228] ---[ end trace 0000000000000000 ]--- [ 56.832724][ T5228] RIP: 0010:ocfs2_prepare_dir_for_insert+0x3305/0x5c60 [ 56.839598][ T5228] Code: 00 00 e8 6e 19 10 fe e9 ba 06 00 00 e8 64 19 10 fe e9 4f 01 00 00 e8 5a 19 10 fe 49 8d 7f 08 49 8d 5f 09 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 bd 23 00 00 48 89 d8 48 c1 e8 03 42 0f [ 56.859279][ T5228] RSP: 0018:ffffc9000363eb00 EFLAGS: 00010202 [ 56.865476][ T5228] RAX: 0000000000000001 RBX: 0000000000000009 RCX: ffff88802e20da00 [ 56.873473][ T5228] RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000008 [ 56.881440][ T5228] RBP: ffffc9000363f310 R08: ffffffff8384a0db R09: ffffffff8384f817 [ 56.889435][ T5228] R10: 0000000000000002 R11: ffff88802e20da00 R12: dffffc0000000000 [ 56.897428][ T5228] R13: ffff88807d3a8878 R14: 0000000000047c88 R15: 0000000000000000 [ 56.905413][ T5228] FS: 000055557975a380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 56.914362][ T5228] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.920926][ T5228] CR2: 00007ffe80e43be8 CR3: 0000000028a78000 CR4: 00000000003526f0 [ 56.928910][ T5228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.936909][ T5228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.944902][ T5228] Kernel panic - not syncing: Fatal exception [ 56.951184][ T5228] Kernel Offset: disabled [ 56.955491][ T5228] Rebooting in 86400 seconds..