./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1122778109 <...> Warning: Permanently added '10.128.1.155' (ED25519) to the list of known hosts. execve("./syz-executor1122778109", ["./syz-executor1122778109"], 0x7ffeadd02a40 /* 10 vars */) = 0 brk(NULL) = 0x55556a688000 brk(0x55556a688d00) = 0x55556a688d00 arch_prctl(ARCH_SET_FS, 0x55556a688380) = 0 set_tid_address(0x55556a688650) = 5816 set_robust_list(0x55556a688660, 24) = 0 rseq(0x55556a688ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1122778109", 4096) = 28 getrandom("\x01\x4c\x55\xc0\x46\x5b\x1f\xef", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556a688d00 brk(0x55556a6a9d00) = 0x55556a6a9d00 brk(0x55556a6aa000) = 0x55556a6aa000 mprotect(0x7f92f3f02000, 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 executing program write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f92eba00000 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(0x7f92eba00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 syzkaller login: [ 71.506242][ T5816] loop0: detected capacity change from 0 to 32768 [ 71.550135][ T5816] ======================================================= [ 71.550135][ T5816] WARNING: The mand mount option has been deprecated and [ 71.550135][ T5816] and is ignored by this kernel. Remove the mand [ 71.550135][ T5816] option from the mount to silence this warning. [ 71.550135][ T5816] ======================================================= [ 71.595653][ T5816] JBD2: Ignoring recovery information on journal mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,dir_resv_level=00000000000000000003,resv_level=00000000000000000006,coherency=ful"...) = 0 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 71.623557][ T5816] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. mkdir("./file0", 000) = 0 mkdir("./bus", 000) = 0 mkdir("./file1", 000) = 0 [ 71.702664][ T5816] overlayfs: upper fs does not support tmpfile. [ 71.711209][ T5816] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 71.718757][ T5816] [ 71.721083][ T5816] ====================================================== [ 71.728088][ T5816] WARNING: possible circular locking dependency detected [ 71.735104][ T5816] 6.15.0-rc3-syzkaller-00342-g5bc1018675ec #0 Not tainted [ 71.742190][ T5816] ------------------------------------------------------ [ 71.749199][ T5816] syz-executor112/5816 is trying to acquire lock: [ 71.755596][ T5816] ffff88807aaac2c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 71.769083][ T5816] [ 71.769083][ T5816] but task is already holding lock: [ 71.776428][ T5816] ffff88807aab1538 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x40f/0x11f0 [ 71.785886][ T5816] [ 71.785886][ T5816] which lock already depends on the new lock. [ 71.785886][ T5816] [ 71.796267][ T5816] [ 71.796267][ T5816] the existing dependency chain (in reverse order) is: [ 71.805257][ T5816] [ 71.805257][ T5816] -> #4 (&oi->ip_xattr_sem){+.+.}-{4:4}: [ 71.813068][ T5816] lock_acquire+0x120/0x360 [ 71.818088][ T5816] down_write+0x96/0x1f0 [ 71.822854][ T5816] ocfs2_xattr_set_handle+0x3b0/0x7a0 [ 71.828742][ T5816] ocfs2_init_security_set+0xbd/0xe0 [ 71.834542][ T5816] ocfs2_mknod+0x137f/0x2050 [ 71.839650][ T5816] ocfs2_mkdir+0x191/0x440 [ 71.844601][ T5816] vfs_mkdir+0x303/0x510 [ 71.849356][ T5816] do_mkdirat+0x247/0x590 [ 71.854199][ T5816] __x64_sys_mkdir+0x6c/0x80 [ 71.859305][ T5816] do_syscall_64+0xf6/0x210 [ 71.864327][ T5816] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 71.870735][ T5816] [ 71.870735][ T5816] -> #3 (jbd2_handle){.+.+}-{0:0}: [ 71.878040][ T5816] lock_acquire+0x120/0x360 [ 71.883066][ T5816] start_this_handle+0x1fa7/0x21c0 [ 71.888694][ T5816] jbd2__journal_start+0x2c1/0x5b0 [ 71.894320][ T5816] jbd2_journal_start+0x2a/0x40 [ 71.899680][ T5816] ocfs2_start_trans+0x376/0x6d0 [ 71.905128][ T5816] ocfs2_reserve_suballoc_bits+0x711/0x45f0 [ 71.911542][ T5816] ocfs2_reserve_new_metadata_blocks+0x403/0x940 [ 71.918387][ T5816] ocfs2_mknod+0xe08/0x2050 [ 71.923404][ T5816] ocfs2_mkdir+0x191/0x440 [ 71.928337][ T5816] vfs_mkdir+0x303/0x510 [ 71.933092][ T5816] do_mkdirat+0x247/0x590 [ 71.937932][ T5816] __x64_sys_mkdir+0x6c/0x80 [ 71.943038][ T5816] do_syscall_64+0xf6/0x210 [ 71.948052][ T5816] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 71.954454][ T5816] [ 71.954454][ T5816] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 71.962971][ T5816] lock_acquire+0x120/0x360 [ 71.967996][ T5816] down_read+0x46/0x2e0 [ 71.972662][ T5816] ocfs2_start_trans+0x36a/0x6d0 [ 71.978111][ T5816] ocfs2_reserve_suballoc_bits+0x711/0x45f0 [ 71.984519][ T5816] ocfs2_reserve_new_metadata_blocks+0x403/0x940 [ 71.991377][ T5816] ocfs2_mknod+0xe08/0x2050 [ 71.996393][ T5816] ocfs2_mkdir+0x191/0x440 [ 72.001321][ T5816] vfs_mkdir+0x303/0x510 [ 72.006080][ T5816] do_mkdirat+0x247/0x590 [ 72.010919][ T5816] __x64_sys_mkdir+0x6c/0x80 [ 72.016024][ T5816] do_syscall_64+0xf6/0x210 [ 72.021040][ T5816] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.027443][ T5816] [ 72.027443][ T5816] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 72.034922][ T5816] lock_acquire+0x120/0x360 [ 72.039944][ T5816] ocfs2_start_trans+0x26b/0x6d0 [ 72.045395][ T5816] ocfs2_mknod+0xe93/0x2050 [ 72.050411][ T5816] ocfs2_mkdir+0x191/0x440 [ 72.055341][ T5816] vfs_mkdir+0x303/0x510 [ 72.060100][ T5816] do_mkdirat+0x247/0x590 [ 72.064940][ T5816] __x64_sys_mkdir+0x6c/0x80 [ 72.070047][ T5816] do_syscall_64+0xf6/0x210 [ 72.075061][ T5816] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.081483][ T5816] [ 72.081483][ T5816] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: [ 72.092005][ T5816] validate_chain+0xb9b/0x2140 [ 72.097302][ T5816] __lock_acquire+0xaac/0xd20 [ 72.102510][ T5816] lock_acquire+0x120/0x360 [ 72.107550][ T5816] down_write+0x96/0x1f0 [ 72.112310][ T5816] ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 72.118979][ T5816] ocfs2_reserve_clusters_with_limit+0x1be/0xba0 [ 72.125827][ T5816] ocfs2_init_xattr_set_ctxt+0x376/0x700 [ 72.131976][ T5816] ocfs2_xattr_set+0xb70/0x11f0 [ 72.137341][ T5816] __vfs_setxattr+0x439/0x480 [ 72.142532][ T5816] __vfs_setxattr_noperm+0x12d/0x660 [ 72.148333][ T5816] vfs_setxattr+0x16b/0x2f0 [ 72.153353][ T5816] ovl_get_workdir+0xb86/0x1700 [ 72.158728][ T5816] ovl_fill_super+0x1386/0x35d0 [ 72.164094][ T5816] get_tree_nodev+0xb8/0x150 [ 72.169199][ T5816] vfs_get_tree+0x8f/0x2b0 [ 72.174130][ T5816] do_new_mount+0x24a/0xa40 [ 72.179146][ T5816] __se_sys_mount+0x317/0x410 [ 72.184340][ T5816] do_syscall_64+0xf6/0x210 [ 72.189358][ T5816] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.195765][ T5816] [ 72.195765][ T5816] other info that might help us debug this: [ 72.195765][ T5816] [ 72.205983][ T5816] Chain exists of: [ 72.205983][ T5816] &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5 --> jbd2_handle --> &oi->ip_xattr_sem [ 72.205983][ T5816] [ 72.221715][ T5816] Possible unsafe locking scenario: [ 72.221715][ T5816] [ 72.229153][ T5816] CPU0 CPU1 [ 72.234505][ T5816] ---- ---- [ 72.239858][ T5816] lock(&oi->ip_xattr_sem); [ 72.244442][ T5816] lock(jbd2_handle); [ 72.251023][ T5816] lock(&oi->ip_xattr_sem); [ 72.258121][ T5816] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 72.265407][ T5816] [ 72.265407][ T5816] *** DEADLOCK *** [ 72.265407][ T5816] [ 72.273539][ T5816] 4 locks held by syz-executor112/5816: [ 72.279067][ T5816] #0: ffff88802e2920e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x204/0x970 [ 72.289165][ T5816] #1: ffff888027724420 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 72.298305][ T5816] #2: ffff88807aab1800 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: vfs_setxattr+0x144/0x2f0 [ 72.308749][ T5816] #3: ffff88807aab1538 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x40f/0x11f0 [ 72.318669][ T5816] [ 72.318669][ T5816] stack backtrace: [ 72.324577][ T5816] CPU: 0 UID: 0 PID: 5816 Comm: syz-executor112 Not tainted 6.15.0-rc3-syzkaller-00342-g5bc1018675ec #0 PREEMPT(full) [ 72.324593][ T5816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.324607][ T5816] Call Trace: [ 72.324612][ T5816] [ 72.324621][ T5816] dump_stack_lvl+0x189/0x250 [ 72.324643][ T5816] ? __pfx_dump_stack_lvl+0x10/0x10 [ 72.324658][ T5816] ? __pfx__printk+0x10/0x10 [ 72.324683][ T5816] ? print_lock_name+0xde/0x100 [ 72.324700][ T5816] print_circular_bug+0x2ee/0x310 [ 72.324719][ T5816] check_noncircular+0x134/0x160 [ 72.324738][ T5816] validate_chain+0xb9b/0x2140 [ 72.324754][ T5816] ? __mutex_unlock_slowpath+0x1cd/0x700 [ 72.324769][ T5816] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 72.324784][ T5816] __lock_acquire+0xaac/0xd20 [ 72.324799][ T5816] ? ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 72.324815][ T5816] lock_acquire+0x120/0x360 [ 72.324828][ T5816] ? ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 72.324844][ T5816] ? is_bpf_text_address+0x292/0x2b0 [ 72.324859][ T5816] ? is_bpf_text_address+0x26/0x2b0 [ 72.324875][ T5816] down_write+0x96/0x1f0 [ 72.324887][ T5816] ? ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 72.324902][ T5816] ? __pfx_down_write+0x10/0x10 [ 72.324914][ T5816] ? arch_stack_walk+0xfc/0x150 [ 72.324930][ T5816] ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 72.324946][ T5816] ? stack_trace_save+0x9c/0xe0 [ 72.324957][ T5816] ? __pfx_stack_trace_save+0x10/0x10 [ 72.324969][ T5816] ? check_path+0x21/0x40 [ 72.324984][ T5816] ? check_noncircular+0xe0/0x160 [ 72.325001][ T5816] ? lockdep_unlock+0x89/0x120 [ 72.325014][ T5816] ? validate_chain+0x897/0x2140 [ 72.325030][ T5816] ? __pfx_ocfs2_reserve_local_alloc_bits+0x10/0x10 [ 72.325045][ T5816] ? do_new_mount+0x24a/0xa40 [ 72.325067][ T5816] ? __lock_acquire+0xaac/0xd20 [ 72.325086][ T5816] ? do_raw_spin_unlock+0x122/0x240 [ 72.325098][ T5816] ? _raw_spin_unlock+0x28/0x50 [ 72.325114][ T5816] ? ocfs2_alloc_should_use_local+0x152/0x310 [ 72.325127][ T5816] ? ocfs2_reserve_clusters_with_limit+0x16b/0xba0 [ 72.325146][ T5816] ocfs2_reserve_clusters_with_limit+0x1be/0xba0 [ 72.325165][ T5816] ? __pfx_ocfs2_reserve_clusters_with_limit+0x10/0x10 [ 72.325186][ T5816] ? __pfx_ocfs2_calc_xattr_set_need+0x10/0x10 [ 72.325202][ T5816] ? __lock_acquire+0xaac/0xd20 [ 72.325218][ T5816] ocfs2_init_xattr_set_ctxt+0x376/0x700 [ 72.325232][ T5816] ? __pfx_ocfs2_init_xattr_set_ctxt+0x10/0x10 [ 72.325246][ T5816] ? ocfs2_xattr_set+0xb36/0x11f0 [ 72.325259][ T5816] ? up_write+0x1c4/0x420 [ 72.325268][ T5816] ? ocfs2_xattr_set+0x334/0x11f0 [ 72.325280][ T5816] ocfs2_xattr_set+0xb70/0x11f0 [ 72.325298][ T5816] ? __pfx_ocfs2_xattr_set+0x10/0x10 [ 72.325310][ T5816] ? up+0xde/0x150 [ 72.325323][ T5816] ? smack_log+0xef/0x3f0 [ 72.325339][ T5816] ? __pfx___console_unlock+0x10/0x10 [ 72.325350][ T5816] ? smk_access+0x14c/0x4e0 [ 72.325365][ T5816] ? smk_tskacc+0x2fc/0x370 [ 72.325382][ T5816] ? posix_xattr_acl+0x93/0xc0 [ 72.325396][ T5816] ? evm_protect_xattr+0x4d4/0xa90 [ 72.325411][ T5816] ? __pfx_evm_protect_xattr+0x10/0x10 [ 72.325423][ T5816] ? safesetid_security_capable+0xa9/0x1a0 [ 72.325436][ T5816] ? __pfx_ocfs2_xattr_trusted_set+0x10/0x10 [ 72.325448][ T5816] __vfs_setxattr+0x439/0x480 [ 72.325467][ T5816] __vfs_setxattr_noperm+0x12d/0x660 [ 72.325485][ T5816] vfs_setxattr+0x16b/0x2f0 [ 72.325503][ T5816] ? __pfx_vfs_setxattr+0x10/0x10 [ 72.325519][ T5816] ? up_write+0x1c4/0x420 [ 72.325530][ T5816] ovl_get_workdir+0xb86/0x1700 [ 72.325548][ T5816] ? __pfx_ovl_get_workdir+0x10/0x10 [ 72.325569][ T5816] ? do_raw_spin_unlock+0x122/0x240 [ 72.325582][ T5816] ? _raw_spin_unlock+0x28/0x50 [ 72.325596][ T5816] ? ovl_inuse_trylock+0xae/0xf0 [ 72.325611][ T5816] ovl_fill_super+0x1386/0x35d0 [ 72.325628][ T5816] ? rcu_is_watching+0x15/0xb0 [ 72.325646][ T5816] ? shrinker_register+0x124/0x230 [ 72.325666][ T5816] ? __pfx_ovl_fill_super+0x10/0x10 [ 72.325680][ T5816] ? __pfx___mutex_lock+0x10/0x10 [ 72.325692][ T5816] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 72.325705][ T5816] ? __raw_spin_lock_init+0x45/0x100 [ 72.325721][ T5816] ? sget_fc+0x962/0xa40 [ 72.325735][ T5816] ? __pfx_set_anon_super_fc+0x10/0x10 [ 72.325749][ T5816] ? __pfx_ovl_fill_super+0x10/0x10 [ 72.325763][ T5816] get_tree_nodev+0xb8/0x150 [ 72.325777][ T5816] vfs_get_tree+0x8f/0x2b0 [ 72.325793][ T5816] do_new_mount+0x24a/0xa40 [ 72.325811][ T5816] __se_sys_mount+0x317/0x410 [ 72.325828][ T5816] ? __pfx___se_sys_mount+0x10/0x10 [ 72.325846][ T5816] ? __x64_sys_mount+0x20/0xc0 [ 72.325862][ T5816] do_syscall_64+0xf6/0x210 [ 72.325875][ T5816] ? clear_bhb_loop+0x45/0xa0 [ 72.325888][ T5816] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 72.325900][ T5816] RIP: 0033:0x7f92f3e8b779 [ 72.325917][ T5816] 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 [ 72.325927][ T5816] RSP: 002b:00007ffd28b273a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 72.325941][ T5816] RAX: ffffffffffffffda RBX: 0000200000000400 RCX: 00007f92f3e8b779 [ 72.325950][ T5816] RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000 [ 72.325958][ T5816] RBP: 0031656c69662f2e R08: 0000200000000480 R09: 0000000000000000 [ 72.325966][ T5816] R10: 000000000001048c R11: 0000000000000246 R12: 0000000000000001 [ 72.325973][ T5816] R13: 00007ffd28b27588 R14: 0000000000000001 R15: 0000000000000001 [ 72.325985][ T5816] mount(NULL, "./bus", "overlay", MS_NODEV|MS_NOEXEC|MS_DIRSYNC|MS_NOATIME|MS_POSIXACL, "workdir=./bus,lowerdir=./file0,upperdir=./file1,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 72.854179][ T5816] overlayfs: upper f