./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3700971092 <...> Warning: Permanently added '10.128.1.182' (ED25519) to the list of known hosts. execve("./syz-executor3700971092", ["./syz-executor3700971092"], 0x7fff6d8cfda0 /* 10 vars */) = 0 brk(NULL) = 0x55558995e000 brk(0x55558995ed00) = 0x55558995ed00 arch_prctl(ARCH_SET_FS, 0x55558995e380) = 0 set_tid_address(0x55558995e650) = 5822 set_robust_list(0x55558995e660, 24) = 0 rseq(0x55558995eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3700971092", 4096) = 28 getrandom("\x88\x76\xe2\x94\xdf\x14\x3a\xe0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558995ed00 brk(0x55558997fd00) = 0x55558997fd00 brk(0x555589980000) = 0x555589980000 mprotect(0x7f317c26d000, 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) = 0x7f3173c00000 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(0x7f3173c00000, 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 [ 86.194954][ T5822] loop0: detected capacity change from 0 to 32768 [ 86.255532][ T5822] (syz-executor370,5822,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 86.272265][ T5822] (syz-executor370,5822,1):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 86.301477][ T5822] JBD2: Ignoring recovery information on journal mount("/dev/loop0", "./file0", "ocfs2", MS_RELATIME, "journal_async_commit,coherency=full,errors=continue,heartbeat=none,errors=continue,nointr,grpquota,") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 [ 86.334478][ T5822] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) mkdirat(AT_FDCWD, "./file0", 000) = 0 mkdirat(AT_FDCWD, "./file1", 000) = 0 mkdir("./bus", 000) = 0 [ 86.455032][ T5822] [ 86.457392][ T5822] ====================================================== [ 86.464397][ T5822] WARNING: possible circular locking dependency detected [ 86.471415][ T5822] 6.15.0-rc5-syzkaller-00204-g0e1329d4045c #0 Not tainted [ 86.478510][ T5822] ------------------------------------------------------ [ 86.485797][ T5822] syz-executor370/5822 is trying to acquire lock: [ 86.492209][ T5822] ffff8880119ae610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0x969/0x1b40 [ 86.501231][ T5822] [ 86.501231][ T5822] but task is already holding lock: [ 86.508594][ T5822] ffff888074063120 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x95a/0x1b40 [ 86.517928][ T5822] [ 86.517928][ T5822] which lock already depends on the new lock. [ 86.517928][ T5822] [ 86.528331][ T5822] [ 86.528331][ T5822] the existing dependency chain (in reverse order) is: [ 86.537336][ T5822] [ 86.537336][ T5822] -> #4 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 86.545174][ T5822] lock_acquire+0x120/0x360 [ 86.550239][ T5822] down_write+0x96/0x1f0 [ 86.555010][ T5822] ocfs2_try_remove_refcount_tree+0xb6/0x320 [ 86.561512][ T5822] ocfs2_xattr_set+0x595/0x11f0 [ 86.566980][ T5822] ocfs2_set_acl+0x701/0x7b0 [ 86.572080][ T5822] ocfs2_iop_set_acl+0x1aa/0x2a0 [ 86.577624][ T5822] vfs_remove_acl+0x489/0x700 [ 86.582992][ T5822] ovl_workdir_create+0x508/0x810 [ 86.588550][ T5822] ovl_get_workdir+0x324/0x1700 [ 86.593937][ T5822] ovl_fill_super+0x1386/0x35d0 [ 86.599314][ T5822] get_tree_nodev+0xb8/0x150 [ 86.604427][ T5822] vfs_get_tree+0x8f/0x2b0 [ 86.609370][ T5822] do_new_mount+0x24a/0xa40 [ 86.614414][ T5822] __se_sys_mount+0x317/0x410 [ 86.619623][ T5822] do_syscall_64+0xf6/0x210 [ 86.624672][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.631104][ T5822] [ 86.631104][ T5822] -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: [ 86.638950][ T5822] lock_acquire+0x120/0x360 [ 86.643990][ T5822] down_read+0x46/0x2e0 [ 86.648676][ T5822] ocfs2_init_acl+0x2f9/0x720 [ 86.653875][ T5822] ocfs2_mknod+0x1321/0x2050 [ 86.658990][ T5822] ocfs2_mkdir+0x191/0x440 [ 86.663927][ T5822] vfs_mkdir+0x303/0x510 [ 86.668691][ T5822] do_mkdirat+0x247/0x590 [ 86.673541][ T5822] __x64_sys_mkdirat+0x87/0xa0 [ 86.678837][ T5822] do_syscall_64+0xf6/0x210 [ 86.683870][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.690287][ T5822] [ 86.690287][ T5822] -> #2 (jbd2_handle){.+.+}-{0:0}: [ 86.697588][ T5822] lock_acquire+0x120/0x360 [ 86.702613][ T5822] start_this_handle+0x1fa7/0x21c0 [ 86.708240][ T5822] jbd2__journal_start+0x2c1/0x5b0 [ 86.713867][ T5822] jbd2_journal_start+0x2a/0x40 [ 86.719235][ T5822] ocfs2_start_trans+0x376/0x6d0 [ 86.724686][ T5822] ocfs2_modify_bh+0xe8/0x470 [ 86.729883][ T5822] ocfs2_local_read_info+0x1465/0x17e0 [ 86.735864][ T5822] dquot_load_quota_sb+0x78e/0xbd0 [ 86.741491][ T5822] dquot_load_quota_inode+0x2e1/0x5d0 [ 86.747376][ T5822] ocfs2_enable_quotas+0x1c6/0x450 [ 86.753002][ T5822] ocfs2_fill_super+0x5115/0x63d0 [ 86.758547][ T5822] get_tree_bdev_flags+0x40b/0x4d0 [ 86.764177][ T5822] vfs_get_tree+0x8f/0x2b0 [ 86.769116][ T5822] do_new_mount+0x24a/0xa40 [ 86.774143][ T5822] __se_sys_mount+0x317/0x410 [ 86.779360][ T5822] do_syscall_64+0xf6/0x210 [ 86.784394][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.790816][ T5822] [ 86.790816][ T5822] -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 86.799332][ T5822] lock_acquire+0x120/0x360 [ 86.804358][ T5822] down_read+0x46/0x2e0 [ 86.809170][ T5822] ocfs2_start_trans+0x36a/0x6d0 [ 86.814620][ T5822] ocfs2_modify_bh+0xe8/0x470 [ 86.819823][ T5822] ocfs2_local_read_info+0x1465/0x17e0 [ 86.825802][ T5822] dquot_load_quota_sb+0x78e/0xbd0 [ 86.831433][ T5822] dquot_load_quota_inode+0x2e1/0x5d0 [ 86.837319][ T5822] ocfs2_enable_quotas+0x1c6/0x450 [ 86.842954][ T5822] ocfs2_fill_super+0x5115/0x63d0 [ 86.848496][ T5822] get_tree_bdev_flags+0x40b/0x4d0 [ 86.854124][ T5822] vfs_get_tree+0x8f/0x2b0 [ 86.859062][ T5822] do_new_mount+0x24a/0xa40 [ 86.864108][ T5822] __se_sys_mount+0x317/0x410 [ 86.869306][ T5822] do_syscall_64+0xf6/0x210 [ 86.874326][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.880735][ T5822] [ 86.880735][ T5822] -> #0 (sb_internal#2){.+.+}-{0:0}: [ 86.888207][ T5822] validate_chain+0xb9b/0x2140 [ 86.893492][ T5822] __lock_acquire+0xaac/0xd20 [ 86.899053][ T5822] lock_acquire+0x120/0x360 [ 86.904071][ T5822] ocfs2_start_trans+0x26b/0x6d0 [ 86.909530][ T5822] ocfs2_setattr+0x969/0x1b40 [ 86.914808][ T5822] notify_change+0xb33/0xe40 [ 86.919934][ T5822] ovl_workdir_create+0x68b/0x810 [ 86.925567][ T5822] ovl_get_workdir+0x324/0x1700 [ 86.931028][ T5822] ovl_fill_super+0x1386/0x35d0 [ 86.936396][ T5822] get_tree_nodev+0xb8/0x150 [ 86.941501][ T5822] vfs_get_tree+0x8f/0x2b0 [ 86.946435][ T5822] do_new_mount+0x24a/0xa40 [ 86.951496][ T5822] __se_sys_mount+0x317/0x410 [ 86.956696][ T5822] do_syscall_64+0xf6/0x210 [ 86.961735][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.968145][ T5822] [ 86.968145][ T5822] other info that might help us debug this: [ 86.968145][ T5822] [ 86.978361][ T5822] Chain exists of: [ 86.978361][ T5822] sb_internal#2 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem [ 86.978361][ T5822] [ 86.991588][ T5822] Possible unsafe locking scenario: [ 86.991588][ T5822] [ 86.999038][ T5822] CPU0 CPU1 [ 87.004492][ T5822] ---- ---- [ 87.009876][ T5822] lock(&oi->ip_alloc_sem); [ 87.014487][ T5822] lock(&oi->ip_xattr_sem); [ 87.021618][ T5822] lock(&oi->ip_alloc_sem); [ 87.028735][ T5822] rlock(sb_internal#2); [ 87.033087][ T5822] [ 87.033087][ T5822] *** DEADLOCK *** [ 87.033087][ T5822] [ 87.041336][ T5822] 5 locks held by syz-executor370/5822: [ 87.046895][ T5822] #0: ffff8880330f00e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x204/0x970 [ 87.057030][ T5822] #1: ffff8880119ae420 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 87.066211][ T5822] #2: ffff888074062640 (&sb->s_type->i_mutex_key#14/1){+.+.}-{4:4}, at: ovl_workdir_create+0x143/0x810 [ 87.077463][ T5822] #3: ffff888074063480 (&sb->s_type->i_mutex_key#16){+.+.}-{4:4}, at: ovl_workdir_create+0x610/0x810 [ 87.088446][ T5822] #4: ffff888074063120 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x95a/0x1b40 [ 87.098223][ T5822] [ 87.098223][ T5822] stack backtrace: [ 87.104140][ T5822] CPU: 0 UID: 0 PID: 5822 Comm: syz-executor370 Not tainted 6.15.0-rc5-syzkaller-00204-g0e1329d4045c #0 PREEMPT(full) [ 87.104166][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.104184][ T5822] Call Trace: [ 87.104193][ T5822] [ 87.104203][ T5822] dump_stack_lvl+0x189/0x250 [ 87.104235][ T5822] ? __pfx_dump_stack_lvl+0x10/0x10 [ 87.104255][ T5822] ? __pfx__printk+0x10/0x10 [ 87.104280][ T5822] ? print_lock_name+0xde/0x100 [ 87.104304][ T5822] print_circular_bug+0x2ee/0x310 [ 87.104331][ T5822] check_noncircular+0x134/0x160 [ 87.104357][ T5822] validate_chain+0xb9b/0x2140 [ 87.104380][ T5822] ? lockdep_unlock+0x89/0x120 [ 87.104404][ T5822] __lock_acquire+0xaac/0xd20 [ 87.104425][ T5822] ? ocfs2_setattr+0x969/0x1b40 [ 87.104444][ T5822] lock_acquire+0x120/0x360 [ 87.104463][ T5822] ? ocfs2_setattr+0x969/0x1b40 [ 87.104484][ T5822] ? do_raw_spin_unlock+0x122/0x240 [ 87.104501][ T5822] ocfs2_start_trans+0x26b/0x6d0 [ 87.104516][ T5822] ? ocfs2_setattr+0x969/0x1b40 [ 87.104536][ T5822] ? __pfx_ocfs2_start_trans+0x10/0x10 [ 87.104550][ T5822] ? setattr_prepare+0x1e7/0xac0 [ 87.104573][ T5822] ocfs2_setattr+0x969/0x1b40 [ 87.104596][ T5822] ? __pfx_ocfs2_setattr+0x10/0x10 [ 87.104617][ T5822] ? smk_tskacc+0x2fc/0x370 [ 87.104639][ T5822] ? smack_inode_setattr+0x17b/0x200 [ 87.104662][ T5822] ? __pfx_smack_inode_setattr+0x10/0x10 [ 87.104692][ T5822] ? current_time+0x222/0x370 [ 87.104706][ T5822] ? evm_inode_setattr+0x1bd/0x7d0 [ 87.104723][ T5822] ? __pfx_current_time+0x10/0x10 [ 87.104740][ T5822] ? try_break_deleg+0x79/0x130 [ 87.104758][ T5822] ? __pfx_ocfs2_setattr+0x10/0x10 [ 87.104777][ T5822] notify_change+0xb33/0xe40 [ 87.104799][ T5822] ovl_workdir_create+0x68b/0x810 [ 87.104820][ T5822] ? mnt_get_write_access+0x68/0x2a0 [ 87.104839][ T5822] ? __pfx_ovl_workdir_create+0x10/0x10 [ 87.104863][ T5822] ? mnt_get_write_access+0x223/0x2a0 [ 87.104882][ T5822] ovl_get_workdir+0x324/0x1700 [ 87.104905][ T5822] ? __pfx_ovl_get_workdir+0x10/0x10 [ 87.104926][ T5822] ? __lock_acquire+0xaac/0xd20 [ 87.104949][ T5822] ? do_raw_spin_lock+0x121/0x290 [ 87.104968][ T5822] ? do_raw_spin_unlock+0x122/0x240 [ 87.104984][ T5822] ? _raw_spin_unlock+0x28/0x50 [ 87.104998][ T5822] ? ovl_inuse_trylock+0xae/0xf0 [ 87.105017][ T5822] ovl_fill_super+0x1386/0x35d0 [ 87.105041][ T5822] ? rcu_is_watching+0x15/0xb0 [ 87.105065][ T5822] ? shrinker_register+0x124/0x230 [ 87.105087][ T5822] ? __pfx_ovl_fill_super+0x10/0x10 [ 87.105106][ T5822] ? __pfx___mutex_lock+0x10/0x10 [ 87.105123][ T5822] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 87.105143][ T5822] ? __raw_spin_lock_init+0x45/0x100 [ 87.105163][ T5822] ? sget_fc+0x962/0xa40 [ 87.105181][ T5822] ? __pfx_set_anon_super_fc+0x10/0x10 [ 87.105200][ T5822] ? __pfx_ovl_fill_super+0x10/0x10 [ 87.105219][ T5822] get_tree_nodev+0xb8/0x150 [ 87.105239][ T5822] vfs_get_tree+0x8f/0x2b0 [ 87.105260][ T5822] do_new_mount+0x24a/0xa40 [ 87.105286][ T5822] __se_sys_mount+0x317/0x410 [ 87.105311][ T5822] ? __pfx___se_sys_mount+0x10/0x10 [ 87.105335][ T5822] ? __x64_sys_mount+0x20/0xc0 [ 87.105359][ T5822] do_syscall_64+0xf6/0x210 [ 87.105378][ T5822] ? clear_bhb_loop+0x45/0xa0 [ 87.105395][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.105410][ T5822] RIP: 0033:0x7f317c1f57b9 [ 87.105432][ T5822] 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 [ 87.105445][ T5822] RSP: 002b:00007ffd8b910a28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 87.105462][ T5822] RAX: ffffffffffffffda RBX: 0000200000000340 RCX: 00007f317c1f57b9 [ 87.105474][ T5822] RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000 [ 87.105484][ T5822] RBP: 0030656c69662f2e R08: 0000200000000340 R09: 0000000000000000 [ 87.105494][ T5822] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 87.105503][ T5822] R13: 00007ffd8b910c08 R14: 0000000000000001 R15: 0000000000000001 [ 87.105519][ T5822] [ 87.499508][ T5822] overlayfs: upper fs does not support tmpfile. mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,xino=on,upperdir=./file1,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 87.507079][ T5822] overlay