./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3192782780 <...> DUID 00:04:7c:7c:42:18:3f:30:8d:b4:e2:57:c6:a5:0a:a4:65:8b forked to background, child pid 5487 [ 36.983181][ T5488] 8021q: adding VLAN 0 to HW filter on device bond0 [ 36.997482][ T5488] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.11' (ED25519) to the list of known hosts. execve("./syz-executor3192782780", ["./syz-executor3192782780"], 0x7fffcdac1590 /* 10 vars */) = 0 brk(NULL) = 0x555562ef0000 brk(0x555562ef0d00) = 0x555562ef0d00 arch_prctl(ARCH_SET_FS, 0x555562ef0380) = 0 set_tid_address(0x555562ef0650) = 5818 set_robust_list(0x555562ef0660, 24) = 0 rseq(0x555562ef0ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3192782780", 4096) = 28 getrandom("\x25\x2f\x64\x91\x73\x56\x95\x48", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555562ef0d00 brk(0x555562f11d00) = 0x555562f11d00 brk(0x555562f12000) = 0x555562f12000 mprotect(0x7f33b030b000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 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) = 0x7f33a7e00000 write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x01\x00\x01\x00\x00\x00\x00\x00\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(0x7f33a7e00000, 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: [ 61.744089][ T5818] loop0: detected capacity change from 0 to 32768 [ 61.767119][ T5818] ======================================================= [ 61.767119][ T5818] WARNING: The mand mount option has been deprecated and [ 61.767119][ T5818] and is ignored by this kernel. Remove the mand mount("/dev/loop0", "./file1", "ocfs2", MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_STRICTATIME, "acl,heartbeat=none,errors=remount-ro,coherency=full,preferred_slot=00000000000000000001,localflocks,"...) = 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) [ 61.767119][ T5818] option from the mount to silence this warning. [ 61.767119][ T5818] ======================================================= [ 61.829106][ T5818] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. mkdir("./file0", 000) = 0 mkdirat(AT_FDCWD, "./file1", 020) = 0 mkdir("./bus", 000) = 0 [ 61.899355][ T5818] overlayfs: upper fs does not support tmpfile. [ 61.908294][ T5818] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 61.916149][ T5818] [ 61.918475][ T5818] ====================================================== [ 61.925475][ T5818] WARNING: possible circular locking dependency detected [ 61.932483][ T5818] 6.13.0-rc7-syzkaller-00191-gfda5e3f28400 #0 Not tainted [ 61.939570][ T5818] ------------------------------------------------------ [ 61.946576][ T5818] syz-executor319/5818 is trying to acquire lock: [ 61.952966][ T5818] ffff888059f6a640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 61.966451][ T5818] [ 61.966451][ T5818] but task is already holding lock: [ 61.973793][ T5818] ffff8880784031b8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 [ 61.983276][ T5818] [ 61.983276][ T5818] which lock already depends on the new lock. [ 61.983276][ T5818] [ 61.993662][ T5818] [ 61.993662][ T5818] the existing dependency chain (in reverse order) is: [ 62.002657][ T5818] [ 62.002657][ T5818] -> #4 (&oi->ip_xattr_sem){+.+.}-{4:4}: [ 62.010487][ T5818] lock_acquire+0x1ed/0x550 [ 62.015496][ T5818] down_write+0x99/0x220 [ 62.020245][ T5818] ocfs2_xattr_set_handle+0x539/0xa10 [ 62.026129][ T5818] ocfs2_init_security_set+0xbd/0xd0 [ 62.032112][ T5818] ocfs2_mknod+0x1ccf/0x2b30 [ 62.037213][ T5818] ocfs2_mkdir+0x1ab/0x470 [ 62.042143][ T5818] vfs_mkdir+0x2f9/0x4f0 [ 62.046907][ T5818] do_mkdirat+0x264/0x3a0 [ 62.051745][ T5818] __x64_sys_mkdir+0x6c/0x80 [ 62.056848][ T5818] do_syscall_64+0xf3/0x230 [ 62.061879][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.068311][ T5818] [ 62.068311][ T5818] -> #3 (jbd2_handle){.+.+}-{0:0}: [ 62.075614][ T5818] lock_acquire+0x1ed/0x550 [ 62.080635][ T5818] start_this_handle+0x1eb4/0x2110 [ 62.086269][ T5818] jbd2__journal_start+0x2da/0x5d0 [ 62.091891][ T5818] jbd2_journal_start+0x29/0x40 [ 62.097257][ T5818] ocfs2_start_trans+0x3c9/0x700 [ 62.102706][ T5818] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 [ 62.109107][ T5818] ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 [ 62.115942][ T5818] ocfs2_mknod+0x143a/0x2b30 [ 62.121038][ T5818] ocfs2_mkdir+0x1ab/0x470 [ 62.125964][ T5818] vfs_mkdir+0x2f9/0x4f0 [ 62.130717][ T5818] do_mkdirat+0x264/0x3a0 [ 62.135555][ T5818] __x64_sys_mkdir+0x6c/0x80 [ 62.140657][ T5818] do_syscall_64+0xf3/0x230 [ 62.145673][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.152077][ T5818] [ 62.152077][ T5818] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 62.160601][ T5818] lock_acquire+0x1ed/0x550 [ 62.165615][ T5818] down_read+0xb1/0xa40 [ 62.170282][ T5818] ocfs2_start_trans+0x3be/0x700 [ 62.175819][ T5818] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 [ 62.182228][ T5818] ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 [ 62.189080][ T5818] ocfs2_mknod+0x143a/0x2b30 [ 62.194179][ T5818] ocfs2_mkdir+0x1ab/0x470 [ 62.199104][ T5818] vfs_mkdir+0x2f9/0x4f0 [ 62.203856][ T5818] do_mkdirat+0x264/0x3a0 [ 62.209136][ T5818] __x64_sys_mkdir+0x6c/0x80 [ 62.214235][ T5818] do_syscall_64+0xf3/0x230 [ 62.219268][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.225674][ T5818] [ 62.225674][ T5818] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 62.233228][ T5818] lock_acquire+0x1ed/0x550 [ 62.238242][ T5818] ocfs2_start_trans+0x2b9/0x700 [ 62.243690][ T5818] ocfs2_mknod+0x150c/0x2b30 [ 62.248788][ T5818] ocfs2_mkdir+0x1ab/0x470 [ 62.253767][ T5818] vfs_mkdir+0x2f9/0x4f0 [ 62.258553][ T5818] do_mkdirat+0x264/0x3a0 [ 62.263404][ T5818] __x64_sys_mkdir+0x6c/0x80 [ 62.268531][ T5818] do_syscall_64+0xf3/0x230 [ 62.273558][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.279971][ T5818] [ 62.279971][ T5818] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: [ 62.290497][ T5818] validate_chain+0x18ef/0x5920 [ 62.295880][ T5818] __lock_acquire+0x1397/0x2100 [ 62.301253][ T5818] lock_acquire+0x1ed/0x550 [ 62.306270][ T5818] down_write+0x99/0x220 [ 62.311024][ T5818] ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 62.317861][ T5818] ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 [ 62.324717][ T5818] ocfs2_init_xattr_set_ctxt+0x420/0x8e0 [ 62.330865][ T5818] ocfs2_xattr_set+0xf4e/0x1930 [ 62.336232][ T5818] __vfs_setxattr+0x468/0x4a0 [ 62.341441][ T5818] __vfs_setxattr_noperm+0x12e/0x660 [ 62.347238][ T5818] vfs_setxattr+0x221/0x430 [ 62.352250][ T5818] ovl_get_workdir+0xd90/0x1920 [ 62.357611][ T5818] ovl_fill_super+0x12a8/0x3560 [ 62.362978][ T5818] get_tree_nodev+0xb7/0x140 [ 62.368079][ T5818] vfs_get_tree+0x90/0x2b0 [ 62.373008][ T5818] do_new_mount+0x2be/0xb40 [ 62.378021][ T5818] __se_sys_mount+0x2d6/0x3c0 [ 62.383206][ T5818] do_syscall_64+0xf3/0x230 [ 62.388305][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.394711][ T5818] [ 62.394711][ T5818] other info that might help us debug this: [ 62.394711][ T5818] [ 62.404921][ T5818] Chain exists of: [ 62.404921][ T5818] &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5 --> jbd2_handle --> &oi->ip_xattr_sem [ 62.404921][ T5818] [ 62.420653][ T5818] Possible unsafe locking scenario: [ 62.420653][ T5818] [ 62.428086][ T5818] CPU0 CPU1 [ 62.433433][ T5818] ---- ---- [ 62.438779][ T5818] lock(&oi->ip_xattr_sem); [ 62.443358][ T5818] lock(jbd2_handle); [ 62.449942][ T5818] lock(&oi->ip_xattr_sem); [ 62.457042][ T5818] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 62.464319][ T5818] [ 62.464319][ T5818] *** DEADLOCK *** [ 62.464319][ T5818] [ 62.472447][ T5818] 4 locks held by syz-executor319/5818: [ 62.477975][ T5818] #0: ffff88805882a0e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 [ 62.488084][ T5818] #1: ffff88802f1ba420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 62.497218][ T5818] #2: ffff888078403480 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: vfs_setxattr+0x1e1/0x430 [ 62.507661][ T5818] #3: ffff8880784031b8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 [ 62.517572][ T5818] [ 62.517572][ T5818] stack backtrace: [ 62.523466][ T5818] CPU: 0 UID: 0 PID: 5818 Comm: syz-executor319 Not tainted 6.13.0-rc7-syzkaller-00191-gfda5e3f28400 #0 [ 62.534589][ T5818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 62.544642][ T5818] Call Trace: [ 62.547910][ T5818] [ 62.551003][ T5818] dump_stack_lvl+0x241/0x360 [ 62.555677][ T5818] ? __pfx_dump_stack_lvl+0x10/0x10 [ 62.560866][ T5818] ? __pfx__printk+0x10/0x10 [ 62.565452][ T5818] print_circular_bug+0x13a/0x1b0 [ 62.570471][ T5818] check_noncircular+0x36a/0x4a0 [ 62.575407][ T5818] ? __pfx_check_noncircular+0x10/0x10 [ 62.580859][ T5818] ? lockdep_lock+0x123/0x2b0 [ 62.585533][ T5818] validate_chain+0x18ef/0x5920 [ 62.590379][ T5818] ? __pfx_validate_chain+0x10/0x10 [ 62.595584][ T5818] ? __pfx_validate_chain+0x10/0x10 [ 62.600777][ T5818] ? mark_lock+0x9a/0x360 [ 62.605129][ T5818] ? ocfs2_get_system_file_inode+0x1d4/0x7b0 [ 62.611124][ T5818] ? __pfx_lock_release+0x10/0x10 [ 62.616156][ T5818] ? mark_lock+0x9a/0x360 [ 62.620486][ T5818] __lock_acquire+0x1397/0x2100 [ 62.625337][ T5818] lock_acquire+0x1ed/0x550 [ 62.629831][ T5818] ? ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 62.636152][ T5818] ? __pfx_lock_acquire+0x10/0x10 [ 62.641166][ T5818] ? __pfx___might_resched+0x10/0x10 [ 62.646463][ T5818] ? __pfx_ocfs2_get_system_file_inode+0x10/0x10 [ 62.652782][ T5818] ? __pfx_validate_chain+0x10/0x10 [ 62.657973][ T5818] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 62.663945][ T5818] down_write+0x99/0x220 [ 62.668179][ T5818] ? ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 62.674494][ T5818] ? __pfx_down_write+0x10/0x10 [ 62.679334][ T5818] ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 62.685487][ T5818] ? mark_lock+0x9a/0x360 [ 62.689809][ T5818] ? __lock_acquire+0x1397/0x2100 [ 62.694826][ T5818] ? __pfx_ocfs2_reserve_local_alloc_bits+0x10/0x10 [ 62.701411][ T5818] ? __pfx_lock_acquire+0x10/0x10 [ 62.706424][ T5818] ? ocfs2_alloc_should_use_local+0x155/0x320 [ 62.712490][ T5818] ? __pfx_lock_release+0x10/0x10 [ 62.717501][ T5818] ? do_raw_spin_lock+0x14f/0x370 [ 62.722520][ T5818] ? do_raw_spin_unlock+0x13c/0x8b0 [ 62.727716][ T5818] ? _raw_spin_unlock+0x28/0x50 [ 62.732561][ T5818] ? ocfs2_alloc_should_use_local+0x155/0x320 [ 62.738629][ T5818] ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 [ 62.744950][ T5818] ? __pfx_ocfs2_reserve_clusters_with_limit+0x10/0x10 [ 62.751798][ T5818] ? __pfx_ocfs2_calc_xattr_set_need+0x10/0x10 [ 62.757949][ T5818] ? ocfs2_xattr_set+0xf00/0x1930 [ 62.762968][ T5818] ocfs2_init_xattr_set_ctxt+0x420/0x8e0 [ 62.768597][ T5818] ? __pfx_ocfs2_init_xattr_set_ctxt+0x10/0x10 [ 62.774746][ T5818] ? up_write+0x1a9/0x590 [ 62.779069][ T5818] ? __pfx_ocfs2_truncate_log_needs_flush+0x10/0x10 [ 62.785651][ T5818] ? __pfx_up_write+0x10/0x10 [ 62.790326][ T5818] ? __kmalloc_cache_noprof+0x243/0x390 [ 62.795860][ T5818] ? ocfs2_xattr_set+0x4d5/0x1930 [ 62.800877][ T5818] ocfs2_xattr_set+0xf4e/0x1930 [ 62.805728][ T5818] ? __pfx_ocfs2_xattr_set+0x10/0x10 [ 62.811005][ T5818] ? __schedule+0x1803/0x4be0 [ 62.815679][ T5818] ? mark_lock+0x9a/0x360 [ 62.820003][ T5818] ? smk_tskacc+0x300/0x370 [ 62.824503][ T5818] ? posix_xattr_acl+0xa9/0xd0 [ 62.829259][ T5818] ? evm_protect_xattr+0x4be/0xb30 [ 62.834364][ T5818] ? __pfx_ocfs2_xattr_trusted_set+0x10/0x10 [ 62.840338][ T5818] __vfs_setxattr+0x468/0x4a0 [ 62.845017][ T5818] __vfs_setxattr_noperm+0x12e/0x660 [ 62.850299][ T5818] vfs_setxattr+0x221/0x430 [ 62.854802][ T5818] ? __pfx_vfs_setxattr+0x10/0x10 [ 62.859819][ T5818] ? _raw_spin_unlock+0x28/0x50 [ 62.864752][ T5818] ? dput+0x37/0x2b0 [ 62.868635][ T5818] ovl_get_workdir+0xd90/0x1920 [ 62.873520][ T5818] ? __pfx_ovl_get_workdir+0x10/0x10 [ 62.878804][ T5818] ? ovl_inuse_trylock+0xab/0xf0 [ 62.883729][ T5818] ? do_raw_spin_lock+0x14f/0x370 [ 62.888752][ T5818] ? _raw_spin_unlock+0x28/0x50 [ 62.893591][ T5818] ? ovl_inuse_trylock+0xab/0xf0 [ 62.898547][ T5818] ovl_fill_super+0x12a8/0x3560 [ 62.903394][ T5818] ? __pfx___mutex_trylock_common+0x10/0x10 [ 62.909281][ T5818] ? shrinker_register+0x118/0x230 [ 62.914387][ T5818] ? __pfx_lock_release+0x10/0x10 [ 62.919407][ T5818] ? __pfx_ovl_fill_super+0x10/0x10 [ 62.924595][ T5818] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 62.930389][ T5818] ? __pfx___mutex_lock+0x10/0x10 [ 62.935409][ T5818] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 62.941387][ T5818] ? sget_fc+0x909/0x9c0 [ 62.945618][ T5818] ? __pfx_set_anon_super_fc+0x10/0x10 [ 62.951064][ T5818] ? __pfx_ovl_fill_super+0x10/0x10 [ 62.956254][ T5818] get_tree_nodev+0xb7/0x140 [ 62.960837][ T5818] vfs_get_tree+0x90/0x2b0 [ 62.965246][ T5818] do_new_mount+0x2be/0xb40 [ 62.969746][ T5818] ? __pfx_do_new_mount+0x10/0x10 [ 62.974763][ T5818] __se_sys_mount+0x2d6/0x3c0 [ 62.979430][ T5818] ? __pfx___se_sys_mount+0x10/0x10 [ 62.984615][ T5818] ? do_syscall_64+0x100/0x230 [ 62.989368][ T5818] ? __x64_sys_mount+0x20/0xc0 [ 62.994115][ T5818] do_syscall_64+0xf3/0x230 [ 62.998602][ T5818] ? clear_bhb_loop+0x35/0x90 [ 63.003269][ T5818] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.009169][ T5818] RIP: 0033:0x7f33b0294779 [ 63.013576][ T5818] 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 [ 63.033269][ T5818] RSP: 002b:00007ffc6aac3bd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 63.041851][ T5818] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f33b0294779 mount(NULL, "./bus", "overlay", 0, "upperdir=./file1,lowerdir=./file0,workdir=./bus,") = -1 EINVAL (Invalid argument) open(NULL, O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = -1 EFAULT (Bad address) exit_group(0) = ? +++ exited with 0 +++ [ 63.049813][ T5818] RDX: 0000000020000080 RSI: 000