./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1692980483 <...> Warning: Permanently added '10.128.0.167' (ED25519) to the list of known hosts. execve("./syz-executor1692980483", ["./syz-executor1692980483"], 0x7ffc87537d60 /* 10 vars */) = 0 brk(NULL) = 0x555580696000 brk(0x555580696d00) = 0x555580696d00 arch_prctl(ARCH_SET_FS, 0x555580696380) = 0 set_tid_address(0x555580696650) = 5830 set_robust_list(0x555580696660, 24) = 0 rseq(0x555580696ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1692980483", 4096) = 28 getrandom("\x23\x89\xf5\x37\x62\x02\x7f\x8f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555580696d00 brk(0x5555806b7d00) = 0x5555806b7d00 brk(0x5555806b8000) = 0x5555806b8000 mprotect(0x7f88c92c2000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 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) = 0x7f88c0e00000 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(0x7f88c0e00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file3", 0777) = 0 [ 84.085668][ T5830] loop0: detected capacity change from 0 to 32768 [ 84.133676][ T5830] ======================================================= [ 84.133676][ T5830] WARNING: The mand mount option has been deprecated and [ 84.133676][ T5830] and is ignored by this kernel. Remove the mand [ 84.133676][ T5830] option from the mount to silence this warning. [ 84.133676][ T5830] ======================================================= mount("/dev/loop0", "./file3", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,heartbeat=none,coherency=full,coherency=full,localalloc=00000000000000000013,erro"...) = 0 openat(AT_FDCWD, "./file3", O_RDONLY|O_DIRECTORY) = 3 chdir("./file3") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) mkdir("./bus", 0777) = 0 mount(NULL, "./bus", 0x400000000180, MS_NODEV|MS_NOEXEC|MS_REMOUNT|MS_DIRSYNC|MS_NOATIME|MS_PRIVATE|MS_RELATIME|MS_I_VERSION|MS_STRICTATIME, "") = -1 EINVAL (Invalid argument) mkdirat(AT_FDCWD, "./file0", 000) = 0 mkdirat(AT_FDCWD, "./file1", 000) = 0 [ 84.188542][ T5830] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. [ 84.240373][ T5830] [ 84.242716][ T5830] ====================================================== [ 84.249713][ T5830] WARNING: possible circular locking dependency detected [ 84.256710][ T5830] 6.14.0-rc3-next-20250218-syzkaller #0 Not tainted [ 84.263272][ T5830] ------------------------------------------------------ [ 84.270261][ T5830] syz-executor169/5830 is trying to acquire lock: [ 84.276668][ T5830] ffff888012374610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0x9dd/0x1ef0 [ 84.285656][ T5830] [ 84.285656][ T5830] but task is already holding lock: [ 84.292998][ T5830] ffff88807a388660 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x9d0/0x1ef0 [ 84.302300][ T5830] [ 84.302300][ T5830] which lock already depends on the new lock. [ 84.302300][ T5830] [ 84.312681][ T5830] [ 84.312681][ T5830] the existing dependency chain (in reverse order) is: [ 84.321671][ T5830] [ 84.321671][ T5830] -> #4 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 84.329482][ T5830] lock_acquire+0x1ed/0x550 [ 84.334492][ T5830] down_write+0x99/0x220 [ 84.339247][ T5830] ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 84.345738][ T5830] ocfs2_xattr_set+0xa4f/0x1930 [ 84.351089][ T5830] ocfs2_set_acl+0x4cb/0x580 [ 84.356176][ T5830] ocfs2_iop_set_acl+0x24a/0x3c0 [ 84.361608][ T5830] vfs_remove_acl+0x4cb/0x770 [ 84.366781][ T5830] ovl_workdir_create+0x52f/0x980 [ 84.372305][ T5830] ovl_get_workdir+0x311/0x1930 [ 84.377665][ T5830] ovl_fill_super+0x12b3/0x3640 [ 84.383014][ T5830] get_tree_nodev+0xb7/0x140 [ 84.388110][ T5830] vfs_get_tree+0x90/0x2b0 [ 84.393046][ T5830] do_new_mount+0x2be/0xb40 [ 84.398058][ T5830] __se_sys_mount+0x2d6/0x3c0 [ 84.403228][ T5830] do_syscall_64+0xf3/0x230 [ 84.408233][ T5830] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.414642][ T5830] [ 84.414642][ T5830] -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: [ 84.422431][ T5830] lock_acquire+0x1ed/0x550 [ 84.427435][ T5830] down_read+0xb1/0xa40 [ 84.432091][ T5830] ocfs2_init_acl+0x397/0x930 [ 84.437268][ T5830] ocfs2_mknod+0x1c05/0x2b30 [ 84.442356][ T5830] ocfs2_mkdir+0x1ab/0x470 [ 84.447270][ T5830] vfs_mkdir+0x2f9/0x4f0 [ 84.452009][ T5830] do_mkdirat+0x264/0x3a0 [ 84.456835][ T5830] __x64_sys_mkdir+0x6c/0x80 [ 84.461922][ T5830] do_syscall_64+0xf3/0x230 [ 84.466943][ T5830] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.473345][ T5830] [ 84.473345][ T5830] -> #2 (jbd2_handle){.+.+}-{0:0}: [ 84.480620][ T5830] lock_acquire+0x1ed/0x550 [ 84.485631][ T5830] start_this_handle+0x1e68/0x20c0 [ 84.491245][ T5830] jbd2__journal_start+0x2da/0x5d0 [ 84.496861][ T5830] jbd2_journal_start+0x29/0x40 [ 84.502206][ T5830] ocfs2_start_trans+0x3c9/0x700 [ 84.507643][ T5830] ocfs2_mknod+0x150c/0x2b30 [ 84.512728][ T5830] ocfs2_mkdir+0x1ab/0x470 [ 84.517641][ T5830] vfs_mkdir+0x2f9/0x4f0 [ 84.522381][ T5830] do_mkdirat+0x264/0x3a0 [ 84.527208][ T5830] __x64_sys_mkdir+0x6c/0x80 [ 84.532312][ T5830] do_syscall_64+0xf3/0x230 [ 84.537327][ T5830] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.543734][ T5830] [ 84.543734][ T5830] -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 84.552228][ T5830] lock_acquire+0x1ed/0x550 [ 84.557247][ T5830] down_read+0xb1/0xa40 [ 84.561905][ T5830] ocfs2_start_trans+0x3be/0x700 [ 84.567344][ T5830] ocfs2_mknod+0x150c/0x2b30 [ 84.572434][ T5830] ocfs2_mkdir+0x1ab/0x470 [ 84.577348][ T5830] vfs_mkdir+0x2f9/0x4f0 [ 84.582094][ T5830] do_mkdirat+0x264/0x3a0 [ 84.586923][ T5830] __x64_sys_mkdir+0x6c/0x80 [ 84.592009][ T5830] do_syscall_64+0xf3/0x230 [ 84.597024][ T5830] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.603425][ T5830] [ 84.603425][ T5830] -> #0 (sb_internal#2){.+.+}-{0:0}: [ 84.610876][ T5830] validate_chain+0x18ef/0x5920 [ 84.616227][ T5830] __lock_acquire+0x1397/0x2100 [ 84.621583][ T5830] lock_acquire+0x1ed/0x550 [ 84.626591][ T5830] ocfs2_start_trans+0x2b9/0x700 [ 84.632029][ T5830] ocfs2_setattr+0x9dd/0x1ef0 [ 84.637213][ T5830] notify_change+0xbca/0xe90 [ 84.642302][ T5830] ovl_workdir_create+0x782/0x980 [ 84.647830][ T5830] ovl_get_workdir+0x311/0x1930 [ 84.653184][ T5830] ovl_fill_super+0x12b3/0x3640 [ 84.658534][ T5830] get_tree_nodev+0xb7/0x140 [ 84.663621][ T5830] vfs_get_tree+0x90/0x2b0 [ 84.668537][ T5830] do_new_mount+0x2be/0xb40 [ 84.673549][ T5830] __se_sys_mount+0x2d6/0x3c0 [ 84.680477][ T5830] do_syscall_64+0xf3/0x230 [ 84.685486][ T5830] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.691879][ T5830] [ 84.691879][ T5830] other info that might help us debug this: [ 84.691879][ T5830] [ 84.702109][ T5830] Chain exists of: [ 84.702109][ T5830] sb_internal#2 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem [ 84.702109][ T5830] [ 84.715304][ T5830] Possible unsafe locking scenario: [ 84.715304][ T5830] [ 84.722733][ T5830] CPU0 CPU1 [ 84.728076][ T5830] ---- ---- [ 84.733433][ T5830] lock(&oi->ip_alloc_sem); [ 84.738002][ T5830] lock(&oi->ip_xattr_sem); [ 84.745089][ T5830] lock(&oi->ip_alloc_sem); [ 84.752173][ T5830] rlock(sb_internal#2); [ 84.756485][ T5830] [ 84.756485][ T5830] *** DEADLOCK *** [ 84.756485][ T5830] [ 84.764604][ T5830] 5 locks held by syz-executor169/5830: [ 84.770124][ T5830] #0: ffff8880345c60e0 (&type->s_umount_key#42/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 [ 84.780197][ T5830] #1: ffff888012374420 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 84.789306][ T5830] #2: ffff88807a3c5f40 (&sb->s_type->i_mutex_key#15/1){+.+.}-{4:4}, at: ovl_workdir_create+0x160/0x980 [ 84.800422][ T5830] #3: ffff88807a3889c0 (&sb->s_type->i_mutex_key#17){+.+.}-{4:4}, at: ovl_workdir_create+0x6e3/0x980 [ 84.811362][ T5830] #4: ffff88807a388660 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x9d0/0x1ef0 [ 84.821081][ T5830] [ 84.821081][ T5830] stack backtrace: [ 84.826957][ T5830] CPU: 1 UID: 0 PID: 5830 Comm: syz-executor169 Not tainted 6.14.0-rc3-next-20250218-syzkaller #0 [ 84.826971][ T5830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 84.826980][ T5830] Call Trace: [ 84.826987][ T5830] [ 84.826992][ T5830] dump_stack_lvl+0x241/0x360 [ 84.827006][ T5830] ? __pfx_dump_stack_lvl+0x10/0x10 [ 84.827016][ T5830] ? __pfx__printk+0x10/0x10 [ 84.827027][ T5830] print_circular_bug+0x13a/0x1b0 [ 84.827039][ T5830] check_noncircular+0x36a/0x4a0 [ 84.827051][ T5830] ? __pfx_check_noncircular+0x10/0x10 [ 84.827062][ T5830] ? lockdep_lock+0x123/0x2b0 [ 84.827075][ T5830] ? add_lock_to_list+0x1e8/0x2f0 [ 84.827087][ T5830] validate_chain+0x18ef/0x5920 [ 84.827103][ T5830] ? __pfx_validate_chain+0x10/0x10 [ 84.827113][ T5830] ? __pfx_validate_chain+0x10/0x10 [ 84.827130][ T5830] ? mark_lock+0x9a/0x360 [ 84.827140][ T5830] __lock_acquire+0x1397/0x2100 [ 84.827157][ T5830] lock_acquire+0x1ed/0x550 [ 84.827170][ T5830] ? ocfs2_setattr+0x9dd/0x1ef0 [ 84.827186][ T5830] ? __pfx_lock_acquire+0x10/0x10 [ 84.827200][ T5830] ? __pfx_lock_release+0x10/0x10 [ 84.827213][ T5830] ? __pfx___might_resched+0x10/0x10 [ 84.827226][ T5830] ? do_raw_spin_unlock+0x13c/0x8b0 [ 84.827238][ T5830] ? _raw_spin_unlock+0x28/0x50 [ 84.827250][ T5830] ocfs2_start_trans+0x2b9/0x700 [ 84.827261][ T5830] ? ocfs2_setattr+0x9dd/0x1ef0 [ 84.827275][ T5830] ? __pfx_ocfs2_start_trans+0x10/0x10 [ 84.827289][ T5830] ocfs2_setattr+0x9dd/0x1ef0 [ 84.827306][ T5830] ? __pfx_ocfs2_setattr+0x10/0x10 [ 84.827319][ T5830] ? seqcount_lockdep_reader_access+0x1d7/0x220 [ 84.827332][ T5830] ? __pfx_seqcount_lockdep_reader_access+0x10/0x10 [ 84.827347][ T5830] ? ktime_get_coarse_real_ts64_mg+0x20c/0x220 [ 84.827362][ T5830] ? current_time+0x279/0x3a0 [ 84.827373][ T5830] ? evm_inode_setattr+0x1b9/0x7d0 [ 84.827384][ T5830] ? security_inode_setattr+0xdb/0x350 [ 84.827393][ T5830] ? __pfx_ocfs2_setattr+0x10/0x10 [ 84.827407][ T5830] notify_change+0xbca/0xe90 [ 84.827422][ T5830] ovl_workdir_create+0x782/0x980 [ 84.827439][ T5830] ? __pfx_ovl_workdir_create+0x10/0x10 [ 84.827452][ T5830] ? rcu_read_lock_any_held+0xb7/0x160 [ 84.827465][ T5830] ? mnt_get_write_access+0x226/0x2b0 [ 84.827482][ T5830] ovl_get_workdir+0x311/0x1930 [ 84.827498][ T5830] ? __pfx_ovl_get_workdir+0x10/0x10 [ 84.827513][ T5830] ? ovl_inuse_trylock+0xab/0xf0 [ 84.827525][ T5830] ? do_raw_spin_lock+0x14f/0x370 [ 84.827536][ T5830] ? __pfx_lock_release+0x10/0x10 [ 84.827551][ T5830] ? do_raw_spin_unlock+0x13c/0x8b0 [ 84.827564][ T5830] ? _raw_spin_unlock+0x28/0x50 [ 84.827574][ T5830] ? ovl_inuse_trylock+0xab/0xf0 [ 84.827586][ T5830] ovl_fill_super+0x12b3/0x3640 [ 84.827606][ T5830] ? __pfx_ovl_fill_super+0x10/0x10 [ 84.827624][ T5830] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 84.827638][ T5830] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 84.827656][ T5830] ? sget_fc+0x960/0xa50 [ 84.827667][ T5830] ? __pfx_set_anon_super_fc+0x10/0x10 [ 84.827677][ T5830] ? __pfx_ovl_fill_super+0x10/0x10 [ 84.827690][ T5830] get_tree_nodev+0xb7/0x140 [ 84.827702][ T5830] vfs_get_tree+0x90/0x2b0 [ 84.827714][ T5830] do_new_mount+0x2be/0xb40 [ 84.827729][ T5830] ? __pfx_do_new_mount+0x10/0x10 [ 84.827745][ T5830] __se_sys_mount+0x2d6/0x3c0 [ 84.827754][ T5830] ? __pfx___se_sys_mount+0x10/0x10 [ 84.827763][ T5830] ? do_syscall_64+0x100/0x230 [ 84.827776][ T5830] ? __x64_sys_mount+0x20/0xc0 [ 84.827785][ T5830] do_syscall_64+0xf3/0x230 [ 84.827798][ T5830] ? clear_bhb_loop+0x45/0xa0 [ 84.827811][ T5830] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 84.827823][ T5830] RIP: 0033:0x7f88c924ac79 [ 84.827836][ T5830] 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 [ 84.827844][ T5830] RSP: 002b:00007ffeae906658 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 84.827854][ T5830] RAX: ffffffffffffffda RBX: 0000400000004440 RCX: 00007f88c924ac79 [ 84.827860][ T5830] RDX: 0000400000000380 RSI: 00004000000000c0 RDI: 0000000000000000 [ 84.827866][ T5830] RBP: 0000400000000ac0 R08: 0000400000000900 R09: 0000400000000000 [ 84.827872][ T5830] R10: 0000000000000000 R11: 0000000000000246 R12: 0000400000000000 [ 84.827877][ T5830] R13: 0000400000000040 R14: 00007f88c929405e R15: 0000000000000001 mount(NULL, "./bus", "overlay", 0, "upperdir=./file1,lowerdir=./file0,workdir=./bus,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 84.827887][ T583