./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2099259039 <...> Warning: Permanently added '10.128.0.82' (ED25519) to the list of known hosts. execve("./syz-executor2099259039", ["./syz-executor2099259039"], 0x7ffc121c5b70 /* 10 vars */) = 0 brk(NULL) = 0x55557156c000 brk(0x55557156cd00) = 0x55557156cd00 arch_prctl(ARCH_SET_FS, 0x55557156c380) = 0 set_tid_address(0x55557156c650) = 5826 set_robust_list(0x55557156c660, 24) = 0 rseq(0x55557156cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2099259039", 4096) = 28 getrandom("\x94\x35\x7f\x5b\xfd\x6c\x29\xb5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557156cd00 brk(0x55557158dd00) = 0x55557158dd00 brk(0x55557158e000) = 0x55557158e000 mprotect(0x7f8157ee6000, 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) = 0x7f814fa00000 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(0x7f814fa00000, 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 [ 88.323967][ T5826] loop0: detected capacity change from 0 to 32768 [ 88.370310][ T5826] ======================================================= [ 88.370310][ T5826] WARNING: The mand mount option has been deprecated and [ 88.370310][ T5826] and is ignored by this kernel. Remove the mand [ 88.370310][ T5826] option from the mount to silence this warning. [ 88.370310][ T5826] ======================================================= mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,dir_resv_level=00000000000000000003,resv_level=00000000000000000006,coherency=ful"...) = 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 [ 88.434427][ T5826] JBD2: Ignoring recovery information on journal [ 88.470729][ T5826] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 88.510761][ T5826] overlayfs: upper fs does not support tmpfile. [ 88.519235][ T5826] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 88.526702][ T5826] [ 88.529035][ T5826] ====================================================== [ 88.536042][ T5826] WARNING: possible circular locking dependency detected [ 88.543067][ T5826] 6.15.0-rc6-syzkaller-00208-g3c21441eeffc #0 Not tainted [ 88.550163][ T5826] ------------------------------------------------------ [ 88.557172][ T5826] syz-executor209/5826 is trying to acquire lock: [ 88.563580][ T5826] ffff888076032640 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 88.577108][ T5826] [ 88.577108][ T5826] but task is already holding lock: [ 88.584467][ T5826] ffff88807b3f31b8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x40f/0x11f0 [ 88.593957][ T5826] [ 88.593957][ T5826] which lock already depends on the new lock. [ 88.593957][ T5826] [ 88.604351][ T5826] [ 88.604351][ T5826] the existing dependency chain (in reverse order) is: [ 88.613361][ T5826] [ 88.613361][ T5826] -> #4 (&oi->ip_xattr_sem){+.+.}-{4:4}: [ 88.621193][ T5826] lock_acquire+0x120/0x360 [ 88.626220][ T5826] down_write+0x96/0x1f0 [ 88.630995][ T5826] ocfs2_xattr_set_handle+0x3b0/0x7a0 [ 88.636889][ T5826] ocfs2_init_security_set+0xbd/0xe0 [ 88.642692][ T5826] ocfs2_mknod+0x137f/0x2050 [ 88.647806][ T5826] ocfs2_mkdir+0x191/0x440 [ 88.652746][ T5826] vfs_mkdir+0x303/0x510 [ 88.657506][ T5826] do_mkdirat+0x247/0x590 [ 88.662360][ T5826] __x64_sys_mkdir+0x6c/0x80 [ 88.667475][ T5826] do_syscall_64+0xf6/0x210 [ 88.672501][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.678911][ T5826] [ 88.678911][ T5826] -> #3 (jbd2_handle){.+.+}-{0:0}: [ 88.686216][ T5826] lock_acquire+0x120/0x360 [ 88.691241][ T5826] start_this_handle+0x1fa7/0x21c0 [ 88.696873][ T5826] jbd2__journal_start+0x2c1/0x5b0 [ 88.702498][ T5826] jbd2_journal_start+0x2a/0x40 [ 88.707873][ T5826] ocfs2_start_trans+0x376/0x6d0 [ 88.713327][ T5826] ocfs2_reserve_suballoc_bits+0x711/0x4640 [ 88.719780][ T5826] ocfs2_reserve_new_metadata_blocks+0x403/0x940 [ 88.726643][ T5826] ocfs2_mknod+0xe08/0x2050 [ 88.731670][ T5826] ocfs2_mkdir+0x191/0x440 [ 88.736617][ T5826] vfs_mkdir+0x303/0x510 [ 88.741374][ T5826] do_mkdirat+0x247/0x590 [ 88.746307][ T5826] __x64_sys_mkdir+0x6c/0x80 [ 88.751426][ T5826] do_syscall_64+0xf6/0x210 [ 88.756460][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.762890][ T5826] [ 88.762890][ T5826] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 88.771404][ T5826] lock_acquire+0x120/0x360 [ 88.776430][ T5826] down_read+0x46/0x2e0 [ 88.781104][ T5826] ocfs2_start_trans+0x36a/0x6d0 [ 88.786555][ T5826] ocfs2_reserve_suballoc_bits+0x711/0x4640 [ 88.792963][ T5826] ocfs2_reserve_new_metadata_blocks+0x403/0x940 [ 88.799808][ T5826] ocfs2_mknod+0xe08/0x2050 [ 88.804850][ T5826] ocfs2_mkdir+0x191/0x440 [ 88.809801][ T5826] vfs_mkdir+0x303/0x510 [ 88.814568][ T5826] do_mkdirat+0x247/0x590 [ 88.819428][ T5826] __x64_sys_mkdir+0x6c/0x80 [ 88.824545][ T5826] do_syscall_64+0xf6/0x210 [ 88.829574][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.836005][ T5826] [ 88.836005][ T5826] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 88.843484][ T5826] lock_acquire+0x120/0x360 [ 88.848509][ T5826] ocfs2_start_trans+0x26b/0x6d0 [ 88.853976][ T5826] ocfs2_mknod+0xe93/0x2050 [ 88.859021][ T5826] ocfs2_mkdir+0x191/0x440 [ 88.863966][ T5826] vfs_mkdir+0x303/0x510 [ 88.868729][ T5826] do_mkdirat+0x247/0x590 [ 88.873572][ T5826] __x64_sys_mkdir+0x6c/0x80 [ 88.878705][ T5826] do_syscall_64+0xf6/0x210 [ 88.883736][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.890144][ T5826] [ 88.890144][ T5826] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: [ 88.900675][ T5826] validate_chain+0xb9b/0x2140 [ 88.905963][ T5826] __lock_acquire+0xaac/0xd20 [ 88.911251][ T5826] lock_acquire+0x120/0x360 [ 88.916275][ T5826] down_write+0x96/0x1f0 [ 88.921040][ T5826] ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 88.927720][ T5826] ocfs2_reserve_clusters_with_limit+0x1be/0xba0 [ 88.934565][ T5826] ocfs2_init_xattr_set_ctxt+0x376/0x700 [ 88.940725][ T5826] ocfs2_xattr_set+0xb70/0x11f0 [ 88.946097][ T5826] __vfs_setxattr+0x439/0x480 [ 88.951307][ T5826] __vfs_setxattr_noperm+0x12d/0x660 [ 88.957116][ T5826] vfs_setxattr+0x16b/0x2f0 [ 88.962142][ T5826] ovl_get_workdir+0xb86/0x1700 [ 88.967521][ T5826] ovl_fill_super+0x1386/0x35d0 [ 88.972897][ T5826] get_tree_nodev+0xbb/0x150 [ 88.978012][ T5826] vfs_get_tree+0x92/0x2b0 [ 88.982973][ T5826] do_new_mount+0x24a/0xa40 [ 88.988020][ T5826] __se_sys_mount+0x317/0x410 [ 88.993207][ T5826] do_syscall_64+0xf6/0x210 [ 88.998243][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.004651][ T5826] [ 89.004651][ T5826] other info that might help us debug this: [ 89.004651][ T5826] [ 89.014968][ T5826] Chain exists of: [ 89.014968][ T5826] &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5 --> jbd2_handle --> &oi->ip_xattr_sem [ 89.014968][ T5826] [ 89.030729][ T5826] Possible unsafe locking scenario: [ 89.030729][ T5826] [ 89.038259][ T5826] CPU0 CPU1 [ 89.043619][ T5826] ---- ---- [ 89.048977][ T5826] lock(&oi->ip_xattr_sem); [ 89.053562][ T5826] lock(jbd2_handle); [ 89.060149][ T5826] lock(&oi->ip_xattr_sem); [ 89.067343][ T5826] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 89.074655][ T5826] [ 89.074655][ T5826] *** DEADLOCK *** [ 89.074655][ T5826] [ 89.082806][ T5826] 4 locks held by syz-executor209/5826: [ 89.088349][ T5826] #0: ffff88806fb340e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x204/0x970 [ 89.098470][ T5826] #1: ffff888034a4c420 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 [ 89.107633][ T5826] #2: ffff88807b3f3480 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: vfs_setxattr+0x144/0x2f0 [ 89.118091][ T5826] #3: ffff88807b3f31b8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x40f/0x11f0 [ 89.128019][ T5826] [ 89.128019][ T5826] stack backtrace: [ 89.133925][ T5826] CPU: 0 UID: 0 PID: 5826 Comm: syz-executor209 Not tainted 6.15.0-rc6-syzkaller-00208-g3c21441eeffc #0 PREEMPT(full) [ 89.133946][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 89.133969][ T5826] Call Trace: [ 89.133981][ T5826] [ 89.133992][ T5826] dump_stack_lvl+0x189/0x250 [ 89.134035][ T5826] ? __pfx_dump_stack_lvl+0x10/0x10 [ 89.134057][ T5826] ? __pfx__printk+0x10/0x10 [ 89.134084][ T5826] ? print_lock_name+0xde/0x100 [ 89.134110][ T5826] print_circular_bug+0x2ee/0x310 [ 89.134128][ T5826] check_noncircular+0x134/0x160 [ 89.134147][ T5826] validate_chain+0xb9b/0x2140 [ 89.134173][ T5826] ? __mutex_unlock_slowpath+0x1cd/0x700 [ 89.134198][ T5826] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 89.134224][ T5826] __lock_acquire+0xaac/0xd20 [ 89.134248][ T5826] ? ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 89.134272][ T5826] lock_acquire+0x120/0x360 [ 89.134293][ T5826] ? ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 89.134318][ T5826] ? is_bpf_text_address+0x292/0x2b0 [ 89.134341][ T5826] ? is_bpf_text_address+0x26/0x2b0 [ 89.134365][ T5826] down_write+0x96/0x1f0 [ 89.134387][ T5826] ? ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 89.134411][ T5826] ? __pfx_down_write+0x10/0x10 [ 89.134433][ T5826] ? arch_stack_walk+0xfc/0x150 [ 89.134457][ T5826] ocfs2_reserve_local_alloc_bits+0x125/0x24e0 [ 89.134481][ T5826] ? stack_trace_save+0x9c/0xe0 [ 89.134497][ T5826] ? __pfx_stack_trace_save+0x10/0x10 [ 89.134515][ T5826] ? check_path+0x21/0x40 [ 89.134528][ T5826] ? check_noncircular+0xe0/0x160 [ 89.134544][ T5826] ? lockdep_unlock+0x89/0x120 [ 89.134607][ T5826] ? validate_chain+0x897/0x2140 [ 89.134634][ T5826] ? __pfx_ocfs2_reserve_local_alloc_bits+0x10/0x10 [ 89.134658][ T5826] ? do_new_mount+0x24a/0xa40 [ 89.134687][ T5826] ? irqentry_exit+0x74/0x90 [ 89.134707][ T5826] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.134730][ T5826] ? ocfs2_alloc_should_use_local+0x34/0x310 [ 89.134761][ T5826] ? do_raw_spin_unlock+0x122/0x240 [ 89.134781][ T5826] ? _raw_spin_unlock+0x28/0x50 [ 89.134798][ T5826] ? ocfs2_alloc_should_use_local+0x152/0x310 [ 89.134822][ T5826] ? ocfs2_reserve_clusters_with_limit+0x16b/0xba0 [ 89.134922][ T5826] ocfs2_reserve_clusters_with_limit+0x1be/0xba0 [ 89.134945][ T5826] ? __pfx_ocfs2_reserve_clusters_with_limit+0x10/0x10 [ 89.134968][ T5826] ? __pfx_ocfs2_calc_xattr_set_need+0x10/0x10 [ 89.134993][ T5826] ? __lock_acquire+0xaac/0xd20 [ 89.135018][ T5826] ocfs2_init_xattr_set_ctxt+0x376/0x700 [ 89.135040][ T5826] ? __pfx_ocfs2_init_xattr_set_ctxt+0x10/0x10 [ 89.135062][ T5826] ? ocfs2_xattr_set+0xb36/0x11f0 [ 89.135081][ T5826] ? up_write+0x1c4/0x420 [ 89.135096][ T5826] ? ocfs2_xattr_set+0x334/0x11f0 [ 89.135114][ T5826] ocfs2_xattr_set+0xb70/0x11f0 [ 89.135141][ T5826] ? __pfx_ocfs2_xattr_set+0x10/0x10 [ 89.135160][ T5826] ? up+0xde/0x150 [ 89.135183][ T5826] ? smack_log+0xef/0x3f0 [ 89.135208][ T5826] ? __pfx___console_unlock+0x10/0x10 [ 89.135225][ T5826] ? smk_access+0x14c/0x4e0 [ 89.135250][ T5826] ? smk_tskacc+0x2fc/0x370 [ 89.135276][ T5826] ? posix_xattr_acl+0x93/0xc0 [ 89.135298][ T5826] ? evm_protect_xattr+0x4d4/0xa90 [ 89.135321][ T5826] ? __pfx_evm_protect_xattr+0x10/0x10 [ 89.135341][ T5826] ? safesetid_security_capable+0xa9/0x1a0 [ 89.135361][ T5826] ? __pfx_ocfs2_xattr_trusted_set+0x10/0x10 [ 89.135380][ T5826] __vfs_setxattr+0x439/0x480 [ 89.135410][ T5826] __vfs_setxattr_noperm+0x12d/0x660 [ 89.135439][ T5826] vfs_setxattr+0x16b/0x2f0 [ 89.135463][ T5826] ? lockdep_hardirqs_on+0x9c/0x150 [ 89.135484][ T5826] ? __pfx_vfs_setxattr+0x10/0x10 [ 89.135513][ T5826] ovl_get_workdir+0xb86/0x1700 [ 89.135539][ T5826] ? __pfx_ovl_get_workdir+0x10/0x10 [ 89.135586][ T5826] ? do_raw_spin_unlock+0x122/0x240 [ 89.135605][ T5826] ? _raw_spin_unlock+0x28/0x50 [ 89.135621][ T5826] ? ovl_inuse_trylock+0xae/0xf0 [ 89.135644][ T5826] ovl_fill_super+0x1386/0x35d0 [ 89.135670][ T5826] ? rcu_is_watching+0x15/0xb0 [ 89.135698][ T5826] ? shrinker_register+0x124/0x230 [ 89.135722][ T5826] ? __pfx_ovl_fill_super+0x10/0x10 [ 89.135744][ T5826] ? __pfx___mutex_lock+0x10/0x10 [ 89.135764][ T5826] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 89.135789][ T5826] ? __raw_spin_lock_init+0x45/0x100 [ 89.135813][ T5826] ? sget_fc+0x962/0xa40 [ 89.135833][ T5826] ? __pfx_set_anon_super_fc+0x10/0x10 [ 89.135854][ T5826] ? __pfx_ovl_fill_super+0x10/0x10 [ 89.135876][ T5826] get_tree_nodev+0xbb/0x150 [ 89.135899][ T5826] vfs_get_tree+0x92/0x2b0 [ 89.135939][ T5826] do_new_mount+0x24a/0xa40 [ 89.135971][ T5826] __se_sys_mount+0x317/0x410 [ 89.135988][ T5826] ? __pfx___se_sys_mount+0x10/0x10 [ 89.136004][ T5826] ? __x64_sys_mount+0x20/0xc0 [ 89.136019][ T5826] do_syscall_64+0xf6/0x210 [ 89.136041][ T5826] ? clear_bhb_loop+0x60/0xb0 [ 89.136059][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.136075][ T5826] RIP: 0033:0x7f8157e6f779 [ 89.136101][ 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 [ 89.136114][ T5826] RSP: 002b:00007ffff7e0d048 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 89.136131][ T5826] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f8157e6f779 [ 89.136143][ T5826] RDX: 0000200000000000 RSI: 00002000000000c0 RDI: 0000000000000000 [ 89.136154][ T5826] RBP: 0031656c69662f2e R08: 0000200000000400 R09: 0000000000000000 [ 89.136165][ T5826] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 89.13617