./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3157095796 <...> Warning: Permanently added '10.128.0.131' (ED25519) to the list of known hosts. execve("./syz-executor3157095796", ["./syz-executor3157095796"], 0x7ffee3292d90 /* 10 vars */) = 0 brk(NULL) = 0x55558776e000 brk(0x55558776ed00) = 0x55558776ed00 arch_prctl(ARCH_SET_FS, 0x55558776e380) = 0 set_tid_address(0x55558776e650) = 5826 set_robust_list(0x55558776e660, 24) = 0 rseq(0x55558776eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3157095796", 4096) = 28 getrandom("\xf0\xb1\xd4\x74\x81\xdf\x20\x67", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558776ed00 brk(0x55558778fd00) = 0x55558778fd00 brk(0x555587790000) = 0x555587790000 mprotect(0x7f19d2284000, 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) = 0x7f19c9c00000 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(0x7f19c9c00000, 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 [ 77.101495][ T5826] loop0: detected capacity change from 0 to 32768 [ 77.144200][ T5826] ======================================================= [ 77.144200][ T5826] WARNING: The mand mount option has been deprecated and [ 77.144200][ T5826] and is ignored by this kernel. Remove the mand [ 77.144200][ T5826] option from the mount to silence this warning. [ 77.144200][ T5826] ======================================================= mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "nouser_xattr,heartbeat=none,errors=remount-ro,coherency=full,errors=continue,data=writeback,errors=r"...) = 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) mkdir("./file0", 000) = 0 mkdirat(AT_FDCWD, "./file1", 000) = 0 mkdir("./bus", 000) = 0 [ 77.197260][ T5826] ocfs2: Mounting device (7,0) on (node local, slot 0) with writeback data mode. [ 77.246890][ T5826] overlayfs: upper fs does not support tmpfile. [ 77.256271][ T5826] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 77.263584][ T5826] [ 77.265958][ T5826] ====================================================== [ 77.272983][ T5826] WARNING: possible circular locking dependency detected [ 77.280000][ T5826] 6.14.0-rc1-syzkaller-00026-gd009de7d5428 #0 Not tainted [ 77.287113][ T5826] ------------------------------------------------------ [ 77.294126][ T5826] syz-executor315/5826 is trying to acquire lock: [ 77.300533][ T5826] ffff888073855100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 77.314142][ T5826] [ 77.314142][ T5826] but task is already holding lock: [ 77.321496][ T5826] ffff8880738606f8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 [ 77.330986][ T5826] [ 77.330986][ T5826] which lock already depends on the new lock. [ 77.330986][ T5826] [ 77.341377][ T5826] [ 77.341377][ T5826] the existing dependency chain (in reverse order) is: [ 77.350534][ T5826] [ 77.350534][ T5826] -> #4 (&oi->ip_xattr_sem){+.+.}-{4:4}: [ 77.358386][ T5826] lock_acquire+0x1ed/0x550 [ 77.363440][ T5826] down_write+0x99/0x220 [ 77.368226][ T5826] ocfs2_xattr_set_handle+0x539/0xa10 [ 77.374138][ T5826] ocfs2_init_security_set+0xbd/0xd0 [ 77.379948][ T5826] ocfs2_mknod+0x1ccf/0x2b30 [ 77.385067][ T5826] ocfs2_mkdir+0x1ab/0x470 [ 77.390024][ T5826] vfs_mkdir+0x2f9/0x4f0 [ 77.394785][ T5826] do_mkdirat+0x264/0x3a0 [ 77.399649][ T5826] __x64_sys_mkdir+0x6c/0x80 [ 77.404752][ T5826] do_syscall_64+0xf3/0x230 [ 77.409820][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.416253][ T5826] [ 77.416253][ T5826] -> #3 (jbd2_handle){.+.+}-{0:0}: [ 77.423568][ T5826] lock_acquire+0x1ed/0x550 [ 77.428609][ T5826] start_this_handle+0x1eb4/0x2110 [ 77.434232][ T5826] jbd2__journal_start+0x2da/0x5d0 [ 77.439857][ T5826] jbd2_journal_start+0x29/0x40 [ 77.445255][ T5826] ocfs2_start_trans+0x3c9/0x700 [ 77.450729][ T5826] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 [ 77.457157][ T5826] ocfs2_reserve_new_inode+0x528/0xd90 [ 77.463143][ T5826] ocfs2_mknod+0xcd2/0x2b30 [ 77.468160][ T5826] ocfs2_mkdir+0x1ab/0x470 [ 77.473297][ T5826] vfs_mkdir+0x2f9/0x4f0 [ 77.478049][ T5826] do_mkdirat+0x264/0x3a0 [ 77.482888][ T5826] __x64_sys_mkdir+0x6c/0x80 [ 77.487997][ T5826] do_syscall_64+0xf3/0x230 [ 77.493045][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.499453][ T5826] [ 77.499453][ T5826] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 77.507980][ T5826] lock_acquire+0x1ed/0x550 [ 77.512992][ T5826] down_read+0xb1/0xa40 [ 77.517659][ T5826] ocfs2_start_trans+0x3be/0x700 [ 77.523110][ T5826] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 [ 77.529537][ T5826] ocfs2_reserve_new_inode+0x528/0xd90 [ 77.535506][ T5826] ocfs2_mknod+0xcd2/0x2b30 [ 77.540524][ T5826] ocfs2_mkdir+0x1ab/0x470 [ 77.545453][ T5826] vfs_mkdir+0x2f9/0x4f0 [ 77.550225][ T5826] do_mkdirat+0x264/0x3a0 [ 77.555062][ T5826] __x64_sys_mkdir+0x6c/0x80 [ 77.560162][ T5826] do_syscall_64+0xf3/0x230 [ 77.565176][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.571584][ T5826] [ 77.571584][ T5826] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 77.579054][ T5826] lock_acquire+0x1ed/0x550 [ 77.584072][ T5826] ocfs2_start_trans+0x2b9/0x700 [ 77.589524][ T5826] ocfs2_mknod+0x150c/0x2b30 [ 77.594625][ T5826] ocfs2_mkdir+0x1ab/0x470 [ 77.599575][ T5826] vfs_mkdir+0x2f9/0x4f0 [ 77.604331][ T5826] do_mkdirat+0x264/0x3a0 [ 77.609170][ T5826] __x64_sys_mkdir+0x6c/0x80 [ 77.614267][ T5826] do_syscall_64+0xf3/0x230 [ 77.619292][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.625703][ T5826] [ 77.625703][ T5826] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: [ 77.636215][ T5826] validate_chain+0x18ef/0x5920 [ 77.641582][ T5826] __lock_acquire+0x1397/0x2100 [ 77.646945][ T5826] lock_acquire+0x1ed/0x550 [ 77.651970][ T5826] down_write+0x99/0x220 [ 77.656734][ T5826] ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 77.663485][ T5826] ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 [ 77.670327][ T5826] ocfs2_init_xattr_set_ctxt+0x420/0x8e0 [ 77.676477][ T5826] ocfs2_xattr_set+0xf4e/0x1930 [ 77.681843][ T5826] __vfs_setxattr+0x468/0x4a0 [ 77.687034][ T5826] __vfs_setxattr_noperm+0x12e/0x660 [ 77.692831][ T5826] vfs_setxattr+0x221/0x430 [ 77.697847][ T5826] ovl_get_workdir+0xda0/0x1930 [ 77.703218][ T5826] ovl_fill_super+0x12a8/0x3560 [ 77.708596][ T5826] get_tree_nodev+0xb7/0x140 [ 77.713695][ T5826] vfs_get_tree+0x90/0x2b0 [ 77.718622][ T5826] do_new_mount+0x2be/0xb40 [ 77.723638][ T5826] __se_sys_mount+0x2d6/0x3c0 [ 77.728845][ T5826] do_syscall_64+0xf3/0x230 [ 77.733863][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.740274][ T5826] [ 77.740274][ T5826] other info that might help us debug this: [ 77.740274][ T5826] [ 77.750486][ T5826] Chain exists of: [ 77.750486][ T5826] &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5 --> jbd2_handle --> &oi->ip_xattr_sem [ 77.750486][ T5826] [ 77.766251][ T5826] Possible unsafe locking scenario: [ 77.766251][ T5826] [ 77.773683][ T5826] CPU0 CPU1 [ 77.779036][ T5826] ---- ---- [ 77.784387][ T5826] lock(&oi->ip_xattr_sem); [ 77.789001][ T5826] lock(jbd2_handle); [ 77.795592][ T5826] lock(&oi->ip_xattr_sem); [ 77.802725][ T5826] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 77.810017][ T5826] [ 77.810017][ T5826] *** DEADLOCK *** [ 77.810017][ T5826] [ 77.818176][ T5826] 4 locks held by syz-executor315/5826: [ 77.823712][ T5826] #0: ffff88807ea9a0e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 [ 77.833855][ T5826] #1: ffff888031cc4420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 77.843007][ T5826] #2: ffff8880738609c0 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: vfs_setxattr+0x1e1/0x430 [ 77.853452][ T5826] #3: ffff8880738606f8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 [ 77.863371][ T5826] [ 77.863371][ T5826] stack backtrace: [ 77.869280][ T5826] CPU: 0 UID: 0 PID: 5826 Comm: syz-executor315 Not tainted 6.14.0-rc1-syzkaller-00026-gd009de7d5428 #0 [ 77.869296][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 77.869307][ T5826] Call Trace: [ 77.869314][ T5826] [ 77.869321][ T5826] dump_stack_lvl+0x241/0x360 [ 77.869348][ T5826] ? __pfx_dump_stack_lvl+0x10/0x10 [ 77.869370][ T5826] ? __pfx__printk+0x10/0x10 [ 77.869393][ T5826] print_circular_bug+0x13a/0x1b0 [ 77.869417][ T5826] check_noncircular+0x36a/0x4a0 [ 77.869440][ T5826] ? __pfx_check_noncircular+0x10/0x10 [ 77.869461][ T5826] ? lockdep_lock+0x123/0x2b0 [ 77.869480][ T5826] validate_chain+0x18ef/0x5920 [ 77.869501][ T5826] ? __pfx_validate_chain+0x10/0x10 [ 77.869527][ T5826] ? __pfx_validate_chain+0x10/0x10 [ 77.869551][ T5826] ? mark_lock+0x9a/0x360 [ 77.869573][ T5826] ? ocfs2_get_system_file_inode+0x1d4/0x7b0 [ 77.869589][ T5826] ? __pfx_lock_release+0x10/0x10 [ 77.869608][ T5826] ? mark_lock+0x9a/0x360 [ 77.869627][ T5826] __lock_acquire+0x1397/0x2100 [ 77.869649][ T5826] lock_acquire+0x1ed/0x550 [ 77.869665][ T5826] ? ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 77.869684][ T5826] ? __pfx_lock_acquire+0x10/0x10 [ 77.869702][ T5826] ? __pfx___might_resched+0x10/0x10 [ 77.869718][ T5826] ? __pfx_ocfs2_get_system_file_inode+0x10/0x10 [ 77.869734][ T5826] ? __pfx_validate_chain+0x10/0x10 [ 77.869754][ T5826] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 77.869772][ T5826] down_write+0x99/0x220 [ 77.869793][ T5826] ? ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 77.869808][ T5826] ? __pfx_down_write+0x10/0x10 [ 77.869830][ T5826] ocfs2_reserve_local_alloc_bits+0x132/0x2840 [ 77.869851][ T5826] ? mark_lock+0x9a/0x360 [ 77.869870][ T5826] ? __lock_acquire+0x1397/0x2100 [ 77.869888][ T5826] ? __pfx_ocfs2_reserve_local_alloc_bits+0x10/0x10 [ 77.869910][ T5826] ? __pfx_lock_acquire+0x10/0x10 [ 77.869932][ T5826] ? ocfs2_alloc_should_use_local+0x155/0x320 [ 77.869947][ T5826] ? __pfx_lock_release+0x10/0x10 [ 77.869963][ T5826] ? do_raw_spin_lock+0x14f/0x370 [ 77.869979][ T5826] ? do_raw_spin_unlock+0x13c/0x8b0 [ 77.869995][ T5826] ? _raw_spin_unlock+0x28/0x50 [ 77.870009][ T5826] ? ocfs2_alloc_should_use_local+0x155/0x320 [ 77.870025][ T5826] ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 [ 77.870046][ T5826] ? __pfx_ocfs2_reserve_clusters_with_limit+0x10/0x10 [ 77.870068][ T5826] ? __pfx_ocfs2_calc_xattr_set_need+0x10/0x10 [ 77.870085][ T5826] ? ocfs2_xattr_set+0xf00/0x1930 [ 77.870106][ T5826] ocfs2_init_xattr_set_ctxt+0x420/0x8e0 [ 77.870129][ T5826] ? __pfx_ocfs2_init_xattr_set_ctxt+0x10/0x10 [ 77.870150][ T5826] ? up_write+0x1a9/0x590 [ 77.870172][ T5826] ? __pfx_ocfs2_truncate_log_needs_flush+0x10/0x10 [ 77.870193][ T5826] ? __pfx_up_write+0x10/0x10 [ 77.870214][ T5826] ? __kmalloc_cache_noprof+0x243/0x390 [ 77.870232][ T5826] ? ocfs2_xattr_set+0x4d5/0x1930 [ 77.870252][ T5826] ocfs2_xattr_set+0xf4e/0x1930 [ 77.870278][ T5826] ? __pfx_ocfs2_xattr_set+0x10/0x10 [ 77.870298][ T5826] ? _prb_read_valid+0xa39/0xac0 [ 77.870326][ T5826] ? mark_lock+0x9a/0x360 [ 77.870352][ T5826] ? smk_tskacc+0x300/0x370 [ 77.870369][ T5826] ? posix_xattr_acl+0xa9/0xd0 [ 77.870390][ T5826] ? evm_protect_xattr+0x4be/0xb30 [ 77.870411][ T5826] ? __pfx_ocfs2_xattr_trusted_set+0x10/0x10 [ 77.870433][ T5826] __vfs_setxattr+0x468/0x4a0 [ 77.870453][ T5826] __vfs_setxattr_noperm+0x12e/0x660 [ 77.870472][ T5826] vfs_setxattr+0x221/0x430 [ 77.870490][ T5826] ? __pfx_vfs_setxattr+0x10/0x10 [ 77.870507][ T5826] ? _raw_spin_unlock+0x28/0x50 [ 77.870522][ T5826] ? dput+0x37/0x2b0 [ 77.870540][ T5826] ovl_get_workdir+0xda0/0x1930 [ 77.870559][ T5826] ? __pfx_ovl_get_workdir+0x10/0x10 [ 77.870576][ T5826] ? ovl_inuse_trylock+0xab/0xf0 [ 77.870607][ T5826] ? do_raw_spin_lock+0x14f/0x370 [ 77.870627][ T5826] ? _raw_spin_unlock+0x28/0x50 [ 77.870642][ T5826] ? ovl_inuse_trylock+0xab/0xf0 [ 77.870657][ T5826] ovl_fill_super+0x12a8/0x3560 [ 77.870674][ T5826] ? shrinker_register+0x118/0x230 [ 77.870695][ T5826] ? __pfx_lock_release+0x10/0x10 [ 77.870719][ T5826] ? __pfx_ovl_fill_super+0x10/0x10 [ 77.870734][ T5826] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 77.870753][ T5826] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 77.870779][ T5826] ? sget_fc+0x909/0x9c0 [ 77.870800][ T5826] ? __pfx_set_anon_super_fc+0x10/0x10 [ 77.870813][ T5826] ? __pfx_ovl_fill_super+0x10/0x10 [ 77.870829][ T5826] get_tree_nodev+0xb7/0x140 [ 77.870843][ T5826] vfs_get_tree+0x90/0x2b0 [ 77.870858][ T5826] do_new_mount+0x2be/0xb40 [ 77.870877][ T5826] ? __pfx_do_new_mount+0x10/0x10 [ 77.870897][ T5826] __se_sys_mount+0x2d6/0x3c0 [ 77.870917][ T5826] ? __pfx___se_sys_mount+0x10/0x10 [ 77.870940][ T5826] ? do_syscall_64+0x100/0x230 [ 77.870961][ T5826] ? __x64_sys_mount+0x20/0xc0 [ 77.870979][ T5826] do_syscall_64+0xf3/0x230 [ 77.870998][ T5826] ? clear_bhb_loop+0x35/0x90 [ 77.871019][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.871040][ T5826] RIP: 0033:0x7f19d220d839 [ 77.871056][ T5826] 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 [ 77.871068][ T5826] RSP: 002b:00007ffcde7b3928 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 77.871083][ T5826] RAX: ffffffffffffffda RBX: 79706f636174656d RCX: 00007f19d220d839 [ 77.871093][ T5826] RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000 [ 77.871103][ T5826] RBP: 00007f19d2284610 R08: 0000200000000400 R09: 0000000000000000 mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,metacopy=on,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 77.871112][ T5826