./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2367962755 <...> Warning: Permanently added '10.128.0.172' (ED25519) to the list of known hosts. execve("./syz-executor2367962755", ["./syz-executor2367962755"], 0x7ffc770df790 /* 10 vars */) = 0 brk(NULL) = 0x555574a20000 brk(0x555574a20d00) = 0x555574a20d00 arch_prctl(ARCH_SET_FS, 0x555574a20380) = 0 set_tid_address(0x555574a20650) = 5820 set_robust_list(0x555574a20660, 24) = 0 rseq(0x555574a20ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2367962755", 4096) = 28 getrandom("\xe7\xbe\xe0\x24\x8c\xbc\xe5\x98", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555574a20d00 brk(0x555574a41d00) = 0x555574a41d00 brk(0x555574a42000) = 0x555574a42000 mprotect(0x7f693bd3e000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 write(1, "executing program\n", 18executing program ) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6933800000 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 munmap(0x7f6933800000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 [ 78.522501][ T5820] loop0: detected capacity change from 0 to 32768 [ 78.558190][ T5820] ======================================================= [ 78.558190][ T5820] WARNING: The mand mount option has been deprecated and [ 78.558190][ T5820] and is ignored by this kernel. Remove the mand [ 78.558190][ T5820] option from the mount to silence this warning. [ 78.558190][ T5820] ======================================================= [ 78.606504][ T5820] ocfs2: Slot 0 on device (7,0) was already allocated to this node! mount("/dev/loop0", "./file0", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,errors=remount-ro,coherency=full,coherency=full,localflocks,intr,noacl,") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 78.627158][ T5820] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 78.675571][ T5820] ------------[ cut here ]------------ [ 78.681234][ T5820] kernel BUG at fs/ocfs2/suballoc.c:1443! [ 78.687163][ T5820] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 78.693412][ T5820] CPU: 0 UID: 0 PID: 5820 Comm: syz-executor236 Not tainted 6.15.0-rc7-syzkaller-00144-gb1427432d3b6 #0 PREEMPT(full) [ 78.705901][ T5820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.715961][ T5820] RIP: 0010:ocfs2_claim_suballoc_bits+0x243c/0x2450 [ 78.722593][ T5820] Code: c2 fb ff ff e8 35 48 20 fe 90 0f 0b e8 2d 48 20 fe 90 0f 0b e8 25 48 20 fe 90 0f 0b e8 1d 48 20 fe 90 0f 0b e8 15 48 20 fe 90 <0f> 0b e8 0d 48 20 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 [ 78.742187][ T5820] RSP: 0018:ffffc900042eee80 EFLAGS: 00010293 [ 78.748253][ T5820] RAX: ffffffff839fa8cb RBX: 0000000000000000 RCX: ffff8880271e3c00 [ 78.756274][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 78.764233][ T5820] RBP: ffffc900042ef110 R08: ffffc900042ef1a0 R09: 0000000000000000 [ 78.772187][ T5820] R10: ffffc900042ef1a0 R11: fffff5200085de39 R12: ffff888027747508 [ 78.780148][ T5820] R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11004ee8ea1 [ 78.788112][ T5820] FS: 0000555574a20380(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000 [ 78.797055][ T5820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.803631][ T5820] CR2: 000000000066c7e0 CR3: 00000000778d4000 CR4: 00000000003526f0 [ 78.811595][ T5820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.819552][ T5820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.827509][ T5820] Call Trace: [ 78.830835][ T5820] [ 78.833765][ T5820] ? stack_trace_save+0x9c/0xe0 [ 78.838614][ T5820] ? check_noncircular+0xe0/0x160 [ 78.843631][ T5820] ? __pfx_ocfs2_claim_suballoc_bits+0x10/0x10 [ 78.849864][ T5820] ? lockdep_unlock+0x89/0x120 [ 78.854625][ T5820] ? validate_chain+0x897/0x2140 [ 78.859567][ T5820] ? __lock_acquire+0xaac/0xd20 [ 78.864421][ T5820] ocfs2_claim_new_inode+0x332/0x7a0 [ 78.869714][ T5820] ? __pfx_ocfs2_claim_new_inode+0x10/0x10 [ 78.875523][ T5820] ? _raw_spin_lock_irq+0xae/0xf0 [ 78.880553][ T5820] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 78.886096][ T5820] ocfs2_mknod_locked+0x100/0x250 [ 78.891122][ T5820] ? __pfx_ocfs2_mknod_locked+0x10/0x10 [ 78.896660][ T5820] ? dquot_alloc_inode+0x216/0xa50 [ 78.901760][ T5820] ? ocfs2_block_signals+0x94/0xe0 [ 78.906859][ T5820] ? __pfx_ocfs2_block_signals+0x10/0x10 [ 78.912479][ T5820] ? ocfs2_init_security_get+0x9f/0x1a0 [ 78.918015][ T5820] ocfs2_mknod+0x10c7/0x2050 [ 78.922602][ T5820] ? __pfx_ocfs2_mknod+0x10/0x10 [ 78.927543][ T5820] ? __pfx_ocfs2_find_entry+0x10/0x10 [ 78.932927][ T5820] ? __lock_acquire+0xaac/0xd20 [ 78.937775][ T5820] ? do_raw_spin_unlock+0x122/0x240 [ 78.942961][ T5820] ? look_up_lock_class+0x74/0x170 [ 78.948061][ T5820] ? register_lock_class+0x51/0x320 [ 78.953248][ T5820] ? __lock_acquire+0xaac/0xd20 [ 78.958092][ T5820] ? __lock_acquire+0xaac/0xd20 [ 78.963038][ T5820] ? do_raw_spin_lock+0x121/0x290 [ 78.968049][ T5820] ? do_raw_spin_unlock+0x122/0x240 [ 78.973239][ T5820] ? rcu_is_watching+0x15/0xb0 [ 78.977989][ T5820] ? ocfs2_lookup+0x4a0/0x990 [ 78.982660][ T5820] ocfs2_create+0x1a5/0x440 [ 78.987151][ T5820] ? __pfx_ocfs2_lookup+0x10/0x10 [ 78.992167][ T5820] ? __pfx_ocfs2_create+0x10/0x10 [ 78.997176][ T5820] ? HAS_UNMAPPED_ID+0x11a/0x180 [ 79.002110][ T5820] ? bpf_lsm_inode_create+0x9/0x20 [ 79.007207][ T5820] ? __pfx_ocfs2_create+0x10/0x10 [ 79.012232][ T5820] path_openat+0x14f1/0x3830 [ 79.016811][ T5820] ? arch_stack_walk+0xfc/0x150 [ 79.021679][ T5820] ? __pfx_path_openat+0x10/0x10 [ 79.026617][ T5820] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.032693][ T5820] do_filp_open+0x1fa/0x410 [ 79.037215][ T5820] ? __pfx_do_filp_open+0x10/0x10 [ 79.042248][ T5820] ? _raw_spin_unlock+0x28/0x50 [ 79.047098][ T5820] ? alloc_fd+0x64c/0x6c0 [ 79.051423][ T5820] do_sys_openat2+0x121/0x1c0 [ 79.056090][ T5820] ? __pfx_do_sys_openat2+0x10/0x10 [ 79.061362][ T5820] ? rcu_is_watching+0x15/0xb0 [ 79.066115][ T5820] __x64_sys_openat+0x138/0x170 [ 79.070963][ T5820] do_syscall_64+0xf6/0x210 [ 79.075452][ T5820] ? clear_bhb_loop+0x60/0xb0 [ 79.080115][ T5820] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.085989][ T5820] RIP: 0033:0x7f693bcc76f9 [ 79.090400][ T5820] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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 [ 79.110004][ T5820] RSP: 002b:00007ffcbed544e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 79.118430][ T5820] RAX: ffffffffffffffda RBX: 00007ffcbed546c8 RCX: 00007f693bcc76f9 [ 79.126400][ T5820] RDX: 0000000000040242 RSI: 00002000000002c0 RDI: 00000000ffffff9c [ 79.134518][ T5820] RBP: 00007f693bd3e610 R08: 0000000000004446 R09: 0000000000000000 [ 79.142483][ T5820] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 79.150444][ T5820] R13: 00007ffcbed546b8 R14: 0000000000000001 R15: 0000000000000001 [ 79.158404][ T5820] [ 79.161406][ T5820] Modules linked in: [ 79.165534][ T5820] ---[ end trace 0000000000000000 ]--- [ 79.171234][ T5820] RIP: 0010:ocfs2_claim_suballoc_bits+0x243c/0x2450 [ 79.177839][ T5820] Code: c2 fb ff ff e8 35 48 20 fe 90 0f 0b e8 2d 48 20 fe 90 0f 0b e8 25 48 20 fe 90 0f 0b e8 1d 48 20 fe 90 0f 0b e8 15 48 20 fe 90 <0f> 0b e8 0d 48 20 fe 90 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 [ 79.197655][ T5820] RSP: 0018:ffffc900042eee80 EFLAGS: 00010293 [ 79.203836][ T5820] RAX: ffffffff839fa8cb RBX: 0000000000000000 RCX: ffff8880271e3c00 [ 79.211833][ T5820] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 79.219796][ T5820] RBP: ffffc900042ef110 R08: ffffc900042ef1a0 R09: 0000000000000000 [ 79.227778][ T5820] R10: ffffc900042ef1a0 R11: fffff5200085de39 R12: ffff888027747508 [ 79.235765][ T5820] R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff11004ee8ea1 [ 79.243743][ T5820] FS: 0000555574a20380(0000) GS:ffff8881261f6000(0000) knlGS:0000000000000000 [ 79.252773][ T5820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.259352][ T5820] CR2: 00007f27953b4492 CR3: 00000000778d4000 CR4: 00000000003526f0 [ 79.267426][ T5820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.275776][ T5820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.284072][ T5820] Kernel panic - not syncing: Fatal exception [ 79.290505][ T5820] Kernel Offset: disabled [ 79.294821][ T5820] Rebooting in 86400 seconds..