./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2798284128 <...> Warning: Permanently added '10.128.0.31' (ED25519) to the list of known hosts. execve("./syz-executor2798284128", ["./syz-executor2798284128"], 0x7ffd258479c0 /* 10 vars */) = 0 brk(NULL) = 0x5555945b3000 brk(0x5555945b3d00) = 0x5555945b3d00 arch_prctl(ARCH_SET_FS, 0x5555945b3380) = 0 set_tid_address(0x5555945b3650) = 5839 set_robust_list(0x5555945b3660, 24) = 0 rseq(0x5555945b3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2798284128", 4096) = 28 getrandom("\x08\xc7\x17\x62\x4e\x13\xda\x67", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555945b3d00 brk(0x5555945d4d00) = 0x5555945d4d00 brk(0x5555945d5000) = 0x5555945d5000 mprotect(0x7fae6f590000, 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 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 5840 attached [pid 5840] set_robust_list(0x5555945b3660, 24) = 0 [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5840] setpgid(0, 0) = 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5839] <... clone resumed>, child_tidptr=0x5555945b3650) = 5840 [pid 5840] <... openat resumed>) = 3 [pid 5840] write(3, "1000", 4) = 4 [pid 5840] close(3) = 0 [pid 5840] write(1, "executing program\n", 18executing program ) = 18 [pid 5840] memfd_create("syzkaller", 0) = 3 [pid 5840] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fae67000000 [pid 5840] 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 5840] munmap(0x7fae67000000, 138412032) = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5840] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5840] close(3) = 0 [pid 5840] close(4) = 0 [pid 5840] mkdir("./file1", 0777) = 0 [ 90.203127][ T5840] loop0: detected capacity change from 0 to 32768 [ 90.239419][ T5840] ======================================================= [ 90.239419][ T5840] WARNING: The mand mount option has been deprecated and [ 90.239419][ T5840] and is ignored by this kernel. Remove the mand [ 90.239419][ T5840] option from the mount to silence this warning. [ 90.239419][ T5840] ======================================================= [pid 5840] mount("/dev/loop0", "./file1", "ocfs2", MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_LAZYTIME, "acl,heartbeat=none,nouser_xattr,coherency=full,data=writeback,localalloc=00000000000000000001,acl,no"...) = 0 [pid 5840] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5840] chdir("./file1") = 0 [pid 5840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 90.295958][ T5840] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. [pid 5840] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_SYNC|O_DIRECT, 0733) = 4 [ 90.339118][ T30] audit: type=1800 audit(1752394536.589:2): pid=5840 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="syz-executor279" name="file1" dev="loop0" ino=17058 res=0 errno=0 [ 90.372480][ T5840] ------------[ cut here ]------------ [ 90.378210][ T5840] kernel BUG at fs/ocfs2/aops.c:1158! [ 90.383649][ T5840] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 90.389911][ T5840] CPU: 1 UID: 0 PID: 5840 Comm: syz-executor279 Not tainted 6.16.0-rc5-syzkaller-00266-g3f31a806a62e #0 PREEMPT(full) [ 90.402851][ T5840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 90.412918][ T5840] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 90.419754][ T5840] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 ca 4d 9c 8d ba 69 04 00 00 48 c7 c1 80 2a ca 8b e8 58 45 1b 00 90 0f 0b e8 60 5c 2a fe 90 <0f> 0b e8 58 5c 2a fe 90 0f 0b e8 50 5c 2a fe 90 0f 0b e8 48 5c 2a [ 90.439374][ T5840] RSP: 0018:ffffc900041ee820 EFLAGS: 00010293 [ 90.445444][ T5840] RAX: ffffffff8395d5f0 RBX: ffff888023624014 RCX: ffff888053ee5a00 [ 90.453428][ T5840] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 90.461401][ T5840] RBP: ffffc900041eeb50 R08: ffff88805563c023 R09: 1ffff1100aac7804 [ 90.469406][ T5840] R10: dffffc0000000000 R11: ffffed100aac7805 R12: ffff888035e50000 [ 90.477382][ T5840] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888023624014 [ 90.485353][ T5840] FS: 00005555945b3380(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000 [ 90.494284][ T5840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.500868][ T5840] CR2: 0000200000001200 CR3: 0000000078964000 CR4: 00000000003526f0 [ 90.508849][ T5840] Call Trace: [ 90.512142][ T5840] [ 90.515085][ T5840] ? __pfx_ocfs2_write_cluster_by_desc+0x10/0x10 [ 90.521424][ T5840] ? jbd2_write_access_granted+0x69/0x310 [ 90.527157][ T5840] ? __ocfs2_journal_access+0x621/0x820 [ 90.532708][ T5840] ? ocfs2_grab_folios_for_write+0xa57/0xd80 [ 90.538704][ T5840] ? __pfx_ocfs2_grab_folios_for_write+0x10/0x10 [ 90.545044][ T5840] ? rcu_is_watching+0x15/0xb0 [ 90.549810][ T5840] ? ocfs2_write_begin_nolock+0xeb9/0x4340 [ 90.555624][ T5840] ? ocfs2_metadata_cache_get_super+0x43/0x80 [ 90.561698][ T5840] ? ocfs2_inode_cache_get_super+0xd/0x40 [ 90.567424][ T5840] ocfs2_write_begin_nolock+0x31a3/0x4340 [ 90.573167][ T5840] ? __pfx_ocfs2_write_begin_nolock+0x10/0x10 [ 90.579242][ T5840] ? __bfs+0x154/0x2a0 [ 90.583312][ T5840] ? check_path+0x21/0x40 [ 90.587729][ T5840] ? check_noncircular+0xe0/0x160 [ 90.592754][ T5840] ? lockdep_unlock+0x89/0x120 [ 90.597539][ T5840] ? validate_chain+0x897/0x2140 [ 90.602481][ T5840] ? __pfx_ocfs2_journal_access_di+0x10/0x10 [ 90.608467][ T5840] ? __lock_acquire+0xab9/0xd20 [ 90.613319][ T5840] ? ocfs2_dio_wr_get_block+0x8ee/0x1770 [ 90.618959][ T5840] ? down_write+0x162/0x1f0 [ 90.623469][ T5840] ? __pfx_down_write+0x10/0x10 [ 90.628320][ T5840] ? __kasan_kmalloc+0x93/0xb0 [ 90.633093][ T5840] ? ocfs2_dio_wr_get_block+0x476/0x1770 [ 90.638740][ T5840] ocfs2_dio_wr_get_block+0xb6f/0x1770 [ 90.644207][ T5840] ? __pfx_ocfs2_dio_wr_get_block+0x10/0x10 [ 90.650105][ T5840] ? iov_iter_advance+0x8b/0x1c0 [ 90.655055][ T5840] ? iov_iter_extract_pages+0x396/0x5e0 [ 90.660641][ T5840] ? __pfx_ocfs2_dio_wr_get_block+0x10/0x10 [ 90.666544][ T5840] __blockdev_direct_IO+0x16da/0x33d0 [ 90.671943][ T5840] ? __pfx___blockdev_direct_IO+0x10/0x10 [ 90.677776][ T5840] ? __pfx_invalidate_inode_pages2_range+0x10/0x10 [ 90.684283][ T5840] ? __pfx_ocfs2_dio_wr_get_block+0x10/0x10 [ 90.690184][ T5840] ? filemap_write_and_wait_range+0x182/0x310 [ 90.696263][ T5840] ? __pfx_filemap_write_and_wait_range+0x10/0x10 [ 90.702698][ T5840] ? __pfx_ocfs2_dio_wr_get_block+0x10/0x10 [ 90.708594][ T5840] ocfs2_direct_IO+0x25f/0x2d0 [ 90.713451][ T5840] generic_file_direct_write+0x1db/0x3e0 [ 90.719103][ T5840] ? file_update_time+0x416/0x490 [ 90.724130][ T5840] __generic_file_write_iter+0x11d/0x230 [ 90.729768][ T5840] ? ocfs2_file_write_iter+0x1551/0x1d10 [ 90.735406][ T5840] ocfs2_file_write_iter+0x157a/0x1d10 [ 90.740895][ T5840] ? __pfx_ocfs2_file_write_iter+0x10/0x10 [ 90.746721][ T5840] ? __lock_acquire+0xab9/0xd20 [ 90.751578][ T5840] ? finish_task_switch+0x18b/0x950 [ 90.756792][ T5840] ? finish_task_switch+0x266/0x950 [ 90.762031][ T5840] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.767242][ T5840] do_iter_readv_writev+0x56b/0x7f0 [ 90.772452][ T5840] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 90.778181][ T5840] ? rcu_read_lock_any_held+0xb3/0x120 [ 90.783670][ T5840] vfs_writev+0x31a/0x960 [ 90.788005][ T5840] ? __pfx_vfs_writev+0x10/0x10 [ 90.792853][ T5840] ? _raw_spin_lock_irq+0xae/0xf0 [ 90.797895][ T5840] ? _raw_spin_unlock_irq+0x2e/0x50 [ 90.803120][ T5840] do_writev+0x14d/0x2d0 [ 90.807365][ T5840] ? __pfx_do_writev+0x10/0x10 [ 90.812137][ T5840] do_syscall_64+0xfa/0x3b0 [ 90.816639][ T5840] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.821846][ T5840] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.827914][ T5840] ? clear_bhb_loop+0x60/0xb0 [ 90.832591][ T5840] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.838591][ T5840] RIP: 0033:0x7fae6f518b19 [ 90.843034][ T5840] 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 [ 90.862644][ T5840] RSP: 002b:00007ffc9d57d398 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 90.871061][ T5840] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fae6f518b19 [ 90.879035][ T5840] RDX: 0000000000000001 RSI: 0000200000000140 RDI: 0000000000000004 [ 90.887007][ T5840] RBP: 00007fae6f5905f0 R08: 00005555945b44c0 R09: 00005555945b44c0 [ 90.894982][ T5840] R10: 0000000000004440 R11: 0000000000000246 R12: 00007ffc9d57d3c0 [ 90.902955][ T5840] R13: 00007ffc9d57d5e8 R14: 431bde82d7b634db R15: 00007fae6f56103b [ 90.910934][ T5840] [ 90.913949][ T5840] Modules linked in: [ 90.917993][ T5840] ---[ end trace 0000000000000000 ]--- [ 90.924260][ T5840] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 [ 90.931094][ T5840] Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 ca 4d 9c 8d ba 69 04 00 00 48 c7 c1 80 2a ca 8b e8 58 45 1b 00 90 0f 0b e8 60 5c 2a fe 90 <0f> 0b e8 58 5c 2a fe 90 0f 0b e8 50 5c 2a fe 90 0f 0b e8 48 5c 2a [ 90.950766][ T5840] RSP: 0018:ffffc900041ee820 EFLAGS: 00010293 [ 90.956899][ T5840] RAX: ffffffff8395d5f0 RBX: ffff888023624014 RCX: ffff888053ee5a00 [ 90.964880][ T5840] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 90.972889][ T5840] RBP: ffffc900041eeb50 R08: ffff88805563c023 R09: 1ffff1100aac7804 [ 90.980914][ T5840] R10: dffffc0000000000 R11: ffffed100aac7805 R12: ffff888035e50000 [ 90.988922][ T5840] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888023624014 [ 90.996940][ T5840] FS: 00005555945b3380(0000) GS:ffff888125d4f000(0000) knlGS:0000000000000000 [ 91.005887][ T5840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.012529][ T5840] CR2: 0000200000001200 CR3: 0000000078964000 CR4: 00000000003526f0 [ 91.020598][ T5840] Kernel panic - not syncing: Fatal exception [ 91.026995][ T5840] Kernel Offset: disabled [ 91.031327][ T5840] Rebooting in 86400 seconds..