./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3466580189 <...> Warning: Permanently added '10.128.0.98' (ED25519) to the list of known hosts. execve("./syz-executor3466580189", ["./syz-executor3466580189"], 0x7ffea4a591e0 /* 10 vars */) = 0 brk(NULL) = 0x55558b3fe000 brk(0x55558b3fed00) = 0x55558b3fed00 arch_prctl(ARCH_SET_FS, 0x55558b3fe380) = 0 set_tid_address(0x55558b3fe650) = 5829 set_robust_list(0x55558b3fe660, 24) = 0 rseq(0x55558b3feca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3466580189", 4096) = 28 getrandom("\xc4\x57\x4e\xcf\x88\xbb\x94\xa7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558b3fed00 brk(0x55558b41fd00) = 0x55558b41fd00 brk(0x55558b420000) = 0x55558b420000 mprotect(0x7fa745ceb000, 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) = 0x7fa73d800000 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(0x7fa73d800000, 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 [ 79.011754][ T5829] loop0: detected capacity change from 0 to 32768 [ 79.035015][ T5829] ======================================================= [ 79.035015][ T5829] WARNING: The mand mount option has been deprecated and [ 79.035015][ T5829] and is ignored by this kernel. Remove the mand mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,nouser_xattr,coherency=full,data=writeback,localalloc=00000000000000000001,acl,no"...) = 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) [ 79.035015][ T5829] option from the mount to silence this warning. [ 79.035015][ T5829] ======================================================= [ 79.098083][ T5829] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. mkdir("./file1", 000) = 0 mkdirat(AT_FDCWD, "./file0", 0721) = 0 mkdir("./bus", 000) = 0 [ 79.175620][ T5829] overlayfs: upper fs does not support tmpfile. [ 79.184546][ T5829] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 79.191900][ T5829] [ 79.194242][ T5829] ====================================================== [ 79.201251][ T5829] WARNING: possible circular locking dependency detected [ 79.208263][ T5829] 6.14.0-syzkaller-12886-ga1b5bd45d4ee #0 Not tainted [ 79.215013][ T5829] ------------------------------------------------------ [ 79.222012][ T5829] syz-executor346/5829 is trying to acquire lock: [ 79.228404][ T5829] ffff888076645100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x18d/0x4f30 [ 79.241631][ T5829] [ 79.241631][ T5829] but task is already holding lock: [ 79.248982][ T5829] ffff888076679538 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x635/0x1940 [ 79.258449][ T5829] [ 79.258449][ T5829] which lock already depends on the new lock. [ 79.258449][ T5829] [ 79.268844][ T5829] [ 79.268844][ T5829] the existing dependency chain (in reverse order) is: [ 79.277853][ T5829] [ 79.277853][ T5829] -> #4 (&oi->ip_xattr_sem){+.+.}-{4:4}: [ 79.285663][ T5829] lock_acquire+0x116/0x2f0 [ 79.290681][ T5829] down_write+0x9c/0x220 [ 79.295441][ T5829] ocfs2_xattr_set_handle+0x53b/0xa20 [ 79.301327][ T5829] ocfs2_init_security_set+0xbd/0xd0 [ 79.307126][ T5829] ocfs2_mknod+0x1cd3/0x2b30 [ 79.312230][ T5829] ocfs2_mkdir+0x19c/0x470 [ 79.317155][ T5829] vfs_mkdir+0x2f9/0x500 [ 79.321911][ T5829] do_mkdirat+0x273/0x3f0 [ 79.326754][ T5829] __x64_sys_mkdir+0x6c/0x80 [ 79.331860][ T5829] do_syscall_64+0xf3/0x230 [ 79.336894][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.343299][ T5829] [ 79.343299][ T5829] -> #3 (jbd2_handle){.+.+}-{0:0}: [ 79.350592][ T5829] lock_acquire+0x116/0x2f0 [ 79.355602][ T5829] start_this_handle+0x1ee4/0x21a0 [ 79.361225][ T5829] jbd2__journal_start+0x2da/0x5d0 [ 79.366851][ T5829] jbd2_journal_start+0x29/0x40 [ 79.372225][ T5829] ocfs2_start_trans+0x3cd/0x710 [ 79.377679][ T5829] ocfs2_reserve_suballoc_bits+0xa54/0x4f30 [ 79.384085][ T5829] ocfs2_reserve_new_metadata_blocks+0x41c/0x9b0 [ 79.390922][ T5829] ocfs2_mknod+0x143e/0x2b30 [ 79.396023][ T5829] ocfs2_mkdir+0x19c/0x470 [ 79.400952][ T5829] vfs_mkdir+0x2f9/0x500 [ 79.405721][ T5829] do_mkdirat+0x273/0x3f0 [ 79.410561][ T5829] __x64_sys_mkdir+0x6c/0x80 [ 79.415657][ T5829] do_syscall_64+0xf3/0x230 [ 79.420661][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.427057][ T5829] [ 79.427057][ T5829] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 79.435551][ T5829] lock_acquire+0x116/0x2f0 [ 79.440558][ T5829] down_read+0xb3/0xa50 [ 79.445232][ T5829] ocfs2_start_trans+0x3c2/0x710 [ 79.450677][ T5829] ocfs2_reserve_suballoc_bits+0xa54/0x4f30 [ 79.457073][ T5829] ocfs2_reserve_new_metadata_blocks+0x41c/0x9b0 [ 79.463904][ T5829] ocfs2_mknod+0x143e/0x2b30 [ 79.469014][ T5829] ocfs2_mkdir+0x19c/0x470 [ 79.473933][ T5829] vfs_mkdir+0x2f9/0x500 [ 79.478683][ T5829] do_mkdirat+0x273/0x3f0 [ 79.483517][ T5829] __x64_sys_mkdir+0x6c/0x80 [ 79.488613][ T5829] do_syscall_64+0xf3/0x230 [ 79.493627][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.500034][ T5829] [ 79.500034][ T5829] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 79.507506][ T5829] lock_acquire+0x116/0x2f0 [ 79.512523][ T5829] ocfs2_start_trans+0x2bd/0x710 [ 79.517981][ T5829] ocfs2_reserve_suballoc_bits+0xa54/0x4f30 [ 79.524389][ T5829] ocfs2_reserve_new_metadata_blocks+0x41c/0x9b0 [ 79.531234][ T5829] ocfs2_mknod+0x143e/0x2b30 [ 79.536334][ T5829] ocfs2_mkdir+0x19c/0x470 [ 79.541260][ T5829] vfs_mkdir+0x2f9/0x500 [ 79.546019][ T5829] do_mkdirat+0x273/0x3f0 [ 79.550862][ T5829] __x64_sys_mkdir+0x6c/0x80 [ 79.555965][ T5829] do_syscall_64+0xf3/0x230 [ 79.560980][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.567382][ T5829] [ 79.567382][ T5829] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4){+.+.}-{4:4}: [ 79.577898][ T5829] validate_chain+0xa69/0x24e0 [ 79.583179][ T5829] __lock_acquire+0xad5/0xd80 [ 79.588373][ T5829] lock_acquire+0x116/0x2f0 [ 79.593394][ T5829] down_write+0x9c/0x220 [ 79.598147][ T5829] ocfs2_reserve_suballoc_bits+0x18d/0x4f30 [ 79.604553][ T5829] ocfs2_reserve_clusters_with_limit+0x3df/0xb60 [ 79.611395][ T5829] ocfs2_init_xattr_set_ctxt+0x435/0x900 [ 79.617541][ T5829] ocfs2_xattr_set+0xf52/0x1940 [ 79.622910][ T5829] __vfs_setxattr+0x468/0x4a0 [ 79.628104][ T5829] __vfs_setxattr_noperm+0x12e/0x660 [ 79.633900][ T5829] vfs_setxattr+0x223/0x430 [ 79.638910][ T5829] ovl_get_workdir+0xea3/0x19e0 [ 79.644268][ T5829] ovl_fill_super+0x1386/0x3720 [ 79.649628][ T5829] get_tree_nodev+0xb7/0x140 [ 79.654732][ T5829] vfs_get_tree+0x90/0x2b0 [ 79.659665][ T5829] do_new_mount+0x2cf/0xb70 [ 79.664677][ T5829] __se_sys_mount+0x38c/0x400 [ 79.669863][ T5829] do_syscall_64+0xf3/0x230 [ 79.674877][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.681277][ T5829] [ 79.681277][ T5829] other info that might help us debug this: [ 79.681277][ T5829] [ 79.691490][ T5829] Chain exists of: [ 79.691490][ T5829] &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4 --> jbd2_handle --> &oi->ip_xattr_sem [ 79.691490][ T5829] [ 79.707219][ T5829] Possible unsafe locking scenario: [ 79.707219][ T5829] [ 79.714670][ T5829] CPU0 CPU1 [ 79.720038][ T5829] ---- ---- [ 79.725401][ T5829] lock(&oi->ip_xattr_sem); [ 79.729986][ T5829] lock(jbd2_handle); [ 79.736568][ T5829] lock(&oi->ip_xattr_sem); [ 79.743675][ T5829] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#4); [ 79.750959][ T5829] [ 79.750959][ T5829] *** DEADLOCK *** [ 79.750959][ T5829] [ 79.759105][ T5829] 4 locks held by syz-executor346/5829: [ 79.764643][ T5829] #0: ffff88807cda40e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 [ 79.774754][ T5829] #1: ffff88802ec54420 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 79.783921][ T5829] #2: ffff888076679800 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: vfs_setxattr+0x1e3/0x430 [ 79.794366][ T5829] #3: ffff888076679538 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x635/0x1940 [ 79.804284][ T5829] [ 79.804284][ T5829] stack backtrace: [ 79.810176][ T5829] CPU: 1 UID: 0 PID: 5829 Comm: syz-executor346 Not tainted 6.14.0-syzkaller-12886-ga1b5bd45d4ee #0 PREEMPT(full) [ 79.810193][ T5829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 79.810205][ T5829] Call Trace: [ 79.810213][ T5829] [ 79.810220][ T5829] dump_stack_lvl+0x241/0x360 [ 79.810244][ T5829] ? __pfx_dump_stack_lvl+0x10/0x10 [ 79.810261][ T5829] ? __pfx__printk+0x10/0x10 [ 79.810279][ T5829] ? print_lock+0x171/0x1a0 [ 79.810296][ T5829] print_circular_bug+0x2e1/0x300 [ 79.810313][ T5829] check_noncircular+0x142/0x160 [ 79.810332][ T5829] validate_chain+0xa69/0x24e0 [ 79.810350][ T5829] ? do_raw_spin_lock+0x151/0x370 [ 79.810373][ T5829] __lock_acquire+0xad5/0xd80 [ 79.810388][ T5829] lock_acquire+0x116/0x2f0 [ 79.810399][ T5829] ? ocfs2_reserve_suballoc_bits+0x18d/0x4f30 [ 79.810420][ T5829] down_write+0x9c/0x220 [ 79.810437][ T5829] ? ocfs2_reserve_suballoc_bits+0x18d/0x4f30 [ 79.810453][ T5829] ? __pfx_down_write+0x10/0x10 [ 79.810468][ T5829] ? rcu_is_watching+0x15/0xb0 [ 79.810483][ T5829] ? lock_release+0x4e/0x3e0 [ 79.810495][ T5829] ? lock_release+0x4e/0x3e0 [ 79.810508][ T5829] ocfs2_reserve_suballoc_bits+0x18d/0x4f30 [ 79.810525][ T5829] ? is_bpf_text_address+0x288/0x2a0 [ 79.810539][ T5829] ? is_bpf_text_address+0x26/0x2a0 [ 79.810553][ T5829] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 79.810572][ T5829] ? kernel_text_address+0xa7/0xe0 [ 79.810592][ T5829] ? __kernel_text_address+0xd/0x40 [ 79.810612][ T5829] ? arch_stack_walk+0xff/0x150 [ 79.810633][ T5829] ? stack_trace_save+0x11a/0x1d0 [ 79.810650][ T5829] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 79.810672][ T5829] ? __pfx_ocfs2_reserve_suballoc_bits+0x10/0x10 [ 79.810687][ T5829] ? __bfs+0x14a/0x270 [ 79.810701][ T5829] ? check_path+0x21/0x40 [ 79.810716][ T5829] ? check_noncircular+0xee/0x160 [ 79.810733][ T5829] ? lockdep_unlock+0x8d/0x120 [ 79.810752][ T5829] ? validate_chain+0x8a7/0x24e0 [ 79.810773][ T5829] ? __vfs_setxattr+0x468/0x4a0 [ 79.810786][ T5829] ? vfs_setxattr+0x223/0x430 [ 79.810800][ T5829] ? vfs_get_tree+0x90/0x2b0 [ 79.810818][ T5829] ? do_new_mount+0x2cf/0xb70 [ 79.810838][ T5829] ? __lock_acquire+0xad5/0xd80 [ 79.810851][ T5829] ? do_raw_spin_lock+0x151/0x370 [ 79.810871][ T5829] ? do_raw_spin_unlock+0x13c/0x8b0 [ 79.810891][ T5829] ? _raw_spin_unlock+0x28/0x50 [ 79.810910][ T5829] ? ocfs2_alloc_should_use_local+0x155/0x320 [ 79.810933][ T5829] ocfs2_reserve_clusters_with_limit+0x3df/0xb60 [ 79.810952][ T5829] ? __pfx_ocfs2_reserve_clusters_with_limit+0x10/0x10 [ 79.810972][ T5829] ? __pfx_ocfs2_calc_xattr_set_need+0x10/0x10 [ 79.810988][ T5829] ? __lock_acquire+0xad5/0xd80 [ 79.811002][ T5829] ocfs2_init_xattr_set_ctxt+0x435/0x900 [ 79.811023][ T5829] ? __pfx_ocfs2_init_xattr_set_ctxt+0x10/0x10 [ 79.811042][ T5829] ? up_write+0x1ab/0x590 [ 79.811058][ T5829] ? __pfx_ocfs2_truncate_log_needs_flush+0x10/0x10 [ 79.811077][ T5829] ? __pfx_up_write+0x10/0x10 [ 79.811093][ T5829] ? __kmalloc_cache_noprof+0x236/0x370 [ 79.811107][ T5829] ? ocfs2_xattr_set+0x4d7/0x1940 [ 79.811125][ T5829] ocfs2_xattr_set+0xf52/0x1940 [ 79.811150][ T5829] ? __pfx_ocfs2_xattr_set+0x10/0x10 [ 79.811168][ T5829] ? _prb_read_valid+0xb13/0xbb0 [ 79.811186][ T5829] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 79.811220][ T5829] ? smk_tskacc+0x300/0x370 [ 79.811237][ T5829] ? posix_xattr_acl+0xa9/0xd0 [ 79.811249][ T5829] ? evm_protect_xattr+0x4c0/0xb50 [ 79.811271][ T5829] ? __pfx_ocfs2_xattr_trusted_set+0x10/0x10 [ 79.811292][ T5829] __vfs_setxattr+0x468/0x4a0 [ 79.811310][ T5829] __vfs_setxattr_noperm+0x12e/0x660 [ 79.811327][ T5829] vfs_setxattr+0x223/0x430 [ 79.811344][ T5829] ? __pfx_vfs_setxattr+0x10/0x10 [ 79.811358][ T5829] ? dput+0x37/0x2b0 [ 79.811373][ T5829] ? dput+0x37/0x2b0 [ 79.811388][ T5829] ovl_get_workdir+0xea3/0x19e0 [ 79.811405][ T5829] ? __pfx_ovl_get_workdir+0x10/0x10 [ 79.811420][ T5829] ? do_raw_spin_lock+0x151/0x370 [ 79.811444][ T5829] ? _raw_spin_unlock+0x28/0x50 [ 79.811463][ T5829] ? ovl_inuse_trylock+0xab/0xf0 [ 79.811484][ T5829] ovl_fill_super+0x1386/0x3720 [ 79.811503][ T5829] ? shrinker_register+0x118/0x230 [ 79.811528][ T5829] ? __pfx_ovl_fill_super+0x10/0x10 [ 79.811544][ T5829] ? __raw_spin_lock_init+0x45/0x100 [ 79.811567][ T5829] ? sget_fc+0x960/0xa50 [ 79.811601][ T5829] ? __pfx_set_anon_super_fc+0x10/0x10 [ 79.811620][ T5829] ? __pfx_ovl_fill_super+0x10/0x10 [ 79.811633][ T5829] get_tree_nodev+0xb7/0x140 [ 79.811654][ T5829] vfs_get_tree+0x90/0x2b0 [ 79.811676][ T5829] do_new_mount+0x2cf/0xb70 [ 79.811694][ T5829] ? __pfx_do_new_mount+0x10/0x10 [ 79.811712][ T5829] __se_sys_mount+0x38c/0x400 [ 79.811730][ T5829] ? __pfx___se_sys_mount+0x10/0x10 [ 79.811748][ T5829] ? __x64_sys_mount+0x20/0xc0 [ 79.811769][ T5829] do_syscall_64+0xf3/0x230 [ 79.811786][ T5829] ? clear_bhb_loop+0x45/0xa0 [ 79.811802][ T5829] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.811816][ T5829] RIP: 0033:0x7fa745c74779 [ 79.811837][ T5829] 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 [ 79.811849][ T5829] RSP: 002b:00007ffc2eaa39a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 79.811864][ T5829] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fa745c74779 mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 79.811875][ T5829] RDX: 0000200000000080 RSI: 00002000000000c0 RDI: