./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3028689222 <...> Warning: Permanently added '10.128.1.78' (ED25519) to the list of known hosts. execve("./syz-executor3028689222", ["./syz-executor3028689222"], 0x7ffdb5d01850 /* 10 vars */) = 0 brk(NULL) = 0x555562fe1000 brk(0x555562fe1e00) = 0x555562fe1e00 arch_prctl(ARCH_SET_FS, 0x555562fe1480) = 0 set_tid_address(0x555562fe1750) = 5825 set_robust_list(0x555562fe1760, 24) = 0 rseq(0x555562fe1da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3028689222", 4096) = 28 getrandom("\xa3\x68\xa4\x1d\xc5\x7f\x9b\x49", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555562fe1e00 brk(0x555563002e00) = 0x555563002e00 brk(0x555563003000) = 0x555563003000 mprotect(0x7f9f36a0d000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f9f36961070, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9f369690e0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f9f36961070, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9f369690e0}, NULL, 8) = 0 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) = 0x7f9f2e400000 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(0x7f9f2e400000, 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 [ 74.376330][ T5825] loop0: detected capacity change from 0 to 32768 [ 74.418970][ T5825] (syz-executor302,5825,0):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 74.435383][ T5825] (syz-executor302,5825,1):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 74.460342][ T5825] 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 [ 74.487822][ T5825] 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) mkdir("./file2", 0777) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- mkdir("./file0", 0777) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 74.608928][ T5825] [ 74.611321][ T5825] ====================================================== [ 74.618333][ T5825] WARNING: possible circular locking dependency detected [ 74.625348][ T5825] 6.14.0-rc6-syzkaller-00244-g31d7109a19f6 #0 Not tainted [ 74.632441][ T5825] ------------------------------------------------------ [ 74.639446][ T5825] syz-executor302/5825 is trying to acquire lock: [ 74.645842][ T5825] ffff888030618610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_setattr+0x9dd/0x1ef0 [ 74.654852][ T5825] [ 74.654852][ T5825] but task is already holding lock: [ 74.662218][ T5825] ffff8880781014a0 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x9d0/0x1ef0 [ 74.671573][ T5825] [ 74.671573][ T5825] which lock already depends on the new lock. [ 74.671573][ T5825] [ 74.681972][ T5825] [ 74.681972][ T5825] the existing dependency chain (in reverse order) is: [ 74.691061][ T5825] [ 74.691061][ T5825] -> #4 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 74.698875][ T5825] lock_acquire+0x1ed/0x550 [ 74.703900][ T5825] down_write+0x99/0x220 [ 74.708663][ T5825] ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 74.715158][ T5825] ocfs2_xattr_set+0xa4f/0x1930 [ 74.720538][ T5825] ocfs2_set_acl+0x4cb/0x580 [ 74.725648][ T5825] ocfs2_iop_set_acl+0x24a/0x3c0 [ 74.731114][ T5825] vfs_remove_acl+0x4cb/0x770 [ 74.736305][ T5825] ovl_workdir_create+0x52f/0x980 [ 74.741849][ T5825] ovl_get_workdir+0x311/0x1930 [ 74.747216][ T5825] ovl_fill_super+0x12b3/0x3640 [ 74.752599][ T5825] get_tree_nodev+0xb7/0x140 [ 74.757716][ T5825] vfs_get_tree+0x90/0x2b0 [ 74.762662][ T5825] do_new_mount+0x2be/0xb40 [ 74.767679][ T5825] __se_sys_mount+0x2d6/0x3c0 [ 74.772867][ T5825] do_syscall_64+0xf3/0x230 [ 74.777891][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.784313][ T5825] [ 74.784313][ T5825] -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: [ 74.792130][ T5825] lock_acquire+0x1ed/0x550 [ 74.797169][ T5825] down_read+0xb1/0xa40 [ 74.801846][ T5825] ocfs2_init_acl+0x397/0x930 [ 74.807035][ T5825] ocfs2_mknod+0x1c05/0x2b30 [ 74.812222][ T5825] ocfs2_mkdir+0x1ab/0x470 [ 74.817148][ T5825] vfs_mkdir+0x2f9/0x4f0 [ 74.821905][ T5825] do_mkdirat+0x264/0x3a0 [ 74.826768][ T5825] __x64_sys_mkdir+0x6c/0x80 [ 74.831883][ T5825] do_syscall_64+0xf3/0x230 [ 74.836904][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.843314][ T5825] [ 74.843314][ T5825] -> #2 (jbd2_handle){.+.+}-{0:0}: [ 74.850628][ T5825] lock_acquire+0x1ed/0x550 [ 74.855646][ T5825] start_this_handle+0x1eb4/0x2110 [ 74.861288][ T5825] jbd2__journal_start+0x2da/0x5d0 [ 74.866916][ T5825] jbd2_journal_start+0x29/0x40 [ 74.872282][ T5825] ocfs2_start_trans+0x3c9/0x700 [ 74.877731][ T5825] ocfs2_modify_bh+0xed/0x4d0 [ 74.882932][ T5825] ocfs2_local_read_info+0x158f/0x19f0 [ 74.888903][ T5825] dquot_load_quota_sb+0x762/0xbb0 [ 74.894539][ T5825] dquot_load_quota_inode+0x320/0x600 [ 74.900417][ T5825] ocfs2_enable_quotas+0x169/0x450 [ 74.906040][ T5825] ocfs2_fill_super+0x5ce8/0x74d0 [ 74.911580][ T5825] get_tree_bdev_flags+0x48c/0x5c0 [ 74.917263][ T5825] vfs_get_tree+0x90/0x2b0 [ 74.922198][ T5825] do_new_mount+0x2be/0xb40 [ 74.927215][ T5825] __se_sys_mount+0x2d6/0x3c0 [ 74.932404][ T5825] do_syscall_64+0xf3/0x230 [ 74.937425][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.943859][ T5825] [ 74.943859][ T5825] -> #1 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 74.952377][ T5825] lock_acquire+0x1ed/0x550 [ 74.957396][ T5825] down_read+0xb1/0xa40 [ 74.962072][ T5825] ocfs2_start_trans+0x3be/0x700 [ 74.967522][ T5825] ocfs2_modify_bh+0xed/0x4d0 [ 74.972720][ T5825] ocfs2_local_read_info+0x158f/0x19f0 [ 74.978691][ T5825] dquot_load_quota_sb+0x762/0xbb0 [ 74.984316][ T5825] dquot_load_quota_inode+0x320/0x600 [ 74.990198][ T5825] ocfs2_enable_quotas+0x169/0x450 [ 74.995824][ T5825] ocfs2_fill_super+0x5ce8/0x74d0 [ 75.001365][ T5825] get_tree_bdev_flags+0x48c/0x5c0 [ 75.006992][ T5825] vfs_get_tree+0x90/0x2b0 [ 75.011925][ T5825] do_new_mount+0x2be/0xb40 [ 75.016937][ T5825] __se_sys_mount+0x2d6/0x3c0 [ 75.022124][ T5825] do_syscall_64+0xf3/0x230 [ 75.027150][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.033596][ T5825] [ 75.033596][ T5825] -> #0 (sb_internal#2){.+.+}-{0:0}: [ 75.041077][ T5825] validate_chain+0x18ef/0x5920 [ 75.046441][ T5825] __lock_acquire+0x1397/0x2100 [ 75.051813][ T5825] lock_acquire+0x1ed/0x550 [ 75.056842][ T5825] ocfs2_start_trans+0x2b9/0x700 [ 75.062312][ T5825] ocfs2_setattr+0x9dd/0x1ef0 [ 75.067520][ T5825] notify_change+0xbca/0xe90 [ 75.072626][ T5825] ovl_workdir_create+0x782/0x980 [ 75.078183][ T5825] ovl_get_workdir+0x311/0x1930 [ 75.083553][ T5825] ovl_fill_super+0x12b3/0x3640 [ 75.088926][ T5825] get_tree_nodev+0xb7/0x140 [ 75.094048][ T5825] vfs_get_tree+0x90/0x2b0 [ 75.098979][ T5825] do_new_mount+0x2be/0xb40 [ 75.104083][ T5825] __se_sys_mount+0x2d6/0x3c0 [ 75.109279][ T5825] do_syscall_64+0xf3/0x230 [ 75.114303][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.120715][ T5825] [ 75.120715][ T5825] other info that might help us debug this: [ 75.120715][ T5825] [ 75.130929][ T5825] Chain exists of: [ 75.130929][ T5825] sb_internal#2 --> &oi->ip_xattr_sem --> &oi->ip_alloc_sem [ 75.130929][ T5825] [ 75.144148][ T5825] Possible unsafe locking scenario: [ 75.144148][ T5825] [ 75.151606][ T5825] CPU0 CPU1 [ 75.156977][ T5825] ---- ---- [ 75.162375][ T5825] lock(&oi->ip_alloc_sem); [ 75.166984][ T5825] lock(&oi->ip_xattr_sem); [ 75.174106][ T5825] lock(&oi->ip_alloc_sem); [ 75.181226][ T5825] rlock(sb_internal#2); [ 75.185560][ T5825] [ 75.185560][ T5825] *** DEADLOCK *** [ 75.185560][ T5825] [ 75.193706][ T5825] 5 locks held by syz-executor302/5825: [ 75.199236][ T5825] #0: ffff88807e4120e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 [ 75.209350][ T5825] #1: ffff888030618420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 75.218514][ T5825] #2: ffff8880781009c0 (&sb->s_type->i_mutex_key#14/1){+.+.}-{4:4}, at: ovl_workdir_create+0x160/0x980 [ 75.229702][ T5825] #3: ffff888078101800 (&sb->s_type->i_mutex_key#16){+.+.}-{4:4}, at: ovl_workdir_create+0x6e3/0x980 [ 75.240701][ T5825] #4: ffff8880781014a0 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_setattr+0x9d0/0x1ef0 [ 75.250467][ T5825] [ 75.250467][ T5825] stack backtrace: [ 75.256365][ T5825] CPU: 1 UID: 0 PID: 5825 Comm: syz-executor302 Not tainted 6.14.0-rc6-syzkaller-00244-g31d7109a19f6 #0 [ 75.256383][ T5825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 75.256394][ T5825] Call Trace: [ 75.256402][ T5825] [ 75.256409][ T5825] dump_stack_lvl+0x241/0x360 [ 75.256427][ T5825] ? __pfx_dump_stack_lvl+0x10/0x10 [ 75.256440][ T5825] ? __pfx__printk+0x10/0x10 [ 75.256466][ T5825] print_circular_bug+0x13a/0x1b0 [ 75.256483][ T5825] check_noncircular+0x36a/0x4a0 [ 75.256499][ T5825] ? __pfx_check_noncircular+0x10/0x10 [ 75.256526][ T5825] ? lockdep_lock+0x123/0x2b0 [ 75.256544][ T5825] ? add_lock_to_list+0x1e8/0x2f0 [ 75.256560][ T5825] validate_chain+0x18ef/0x5920 [ 75.256586][ T5825] ? __pfx_validate_chain+0x10/0x10 [ 75.256618][ T5825] ? __pfx_validate_chain+0x10/0x10 [ 75.256641][ T5825] ? mark_lock+0x9a/0x360 [ 75.256664][ T5825] __lock_acquire+0x1397/0x2100 [ 75.256694][ T5825] lock_acquire+0x1ed/0x550 [ 75.256715][ T5825] ? ocfs2_setattr+0x9dd/0x1ef0 [ 75.256739][ T5825] ? __pfx_lock_acquire+0x10/0x10 [ 75.256759][ T5825] ? __pfx_lock_release+0x10/0x10 [ 75.256779][ T5825] ? __pfx___might_resched+0x10/0x10 [ 75.256798][ T5825] ? do_raw_spin_unlock+0x13c/0x8b0 [ 75.256815][ T5825] ? _raw_spin_unlock+0x28/0x50 [ 75.256834][ T5825] ocfs2_start_trans+0x2b9/0x700 [ 75.256851][ T5825] ? ocfs2_setattr+0x9dd/0x1ef0 [ 75.256873][ T5825] ? __pfx_ocfs2_start_trans+0x10/0x10 [ 75.256893][ T5825] ocfs2_setattr+0x9dd/0x1ef0 [ 75.256919][ T5825] ? __pfx_ocfs2_setattr+0x10/0x10 [ 75.256945][ T5825] ? __pfx_smack_inode_setattr+0x10/0x10 [ 75.256967][ T5825] ? current_time+0x279/0x3a0 [ 75.256985][ T5825] ? evm_inode_setattr+0x1b9/0x7d0 [ 75.257011][ T5825] ? security_inode_setattr+0xdb/0x350 [ 75.257032][ T5825] ? __pfx_ocfs2_setattr+0x10/0x10 [ 75.257053][ T5825] notify_change+0xbca/0xe90 [ 75.257077][ T5825] ovl_workdir_create+0x782/0x980 [ 75.257103][ T5825] ? __pfx_ovl_workdir_create+0x10/0x10 [ 75.257124][ T5825] ? rcu_read_lock_any_held+0xb7/0x160 [ 75.257142][ T5825] ? mnt_get_write_access+0x226/0x2b0 [ 75.257163][ T5825] ovl_get_workdir+0x311/0x1930 [ 75.257186][ T5825] ? __pfx_ovl_get_workdir+0x10/0x10 [ 75.257209][ T5825] ? ovl_inuse_trylock+0xab/0xf0 [ 75.257227][ T5825] ? do_raw_spin_lock+0x14f/0x370 [ 75.257243][ T5825] ? __pfx_lock_release+0x10/0x10 [ 75.257265][ T5825] ? do_raw_spin_unlock+0x13c/0x8b0 [ 75.257283][ T5825] ? _raw_spin_unlock+0x28/0x50 [ 75.257300][ T5825] ? ovl_inuse_trylock+0xab/0xf0 [ 75.257319][ T5825] ovl_fill_super+0x12b3/0x3640 [ 75.257348][ T5825] ? __pfx_ovl_fill_super+0x10/0x10 [ 75.257367][ T5825] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 75.257388][ T5825] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 75.257418][ T5825] ? sget_fc+0x960/0xa50 [ 75.257435][ T5825] ? __pfx_set_anon_super_fc+0x10/0x10 [ 75.257453][ T5825] ? __pfx_ovl_fill_super+0x10/0x10 [ 75.257472][ T5825] get_tree_nodev+0xb7/0x140 [ 75.257492][ T5825] vfs_get_tree+0x90/0x2b0 [ 75.257513][ T5825] do_new_mount+0x2be/0xb40 [ 75.257528][ T5825] ? __pfx_do_new_mount+0x10/0x10 [ 75.257544][ T5825] __se_sys_mount+0x2d6/0x3c0 [ 75.257560][ T5825] ? __pfx___se_sys_mount+0x10/0x10 [ 75.257579][ T5825] ? exc_page_fault+0x590/0x8b0 [ 75.257600][ T5825] ? __x64_sys_mount+0x20/0xc0 [ 75.257614][ T5825] do_syscall_64+0xf3/0x230 [ 75.257636][ T5825] ? clear_bhb_loop+0x35/0x90 [ 75.257658][ T5825] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.257685][ T5825] RIP: 0033:0x7f9f369950f9 [ 75.257700][ T5825] 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 [ 75.257712][ T5825] RSP: 002b:00007fffd654b3b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 75.257727][ T5825] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9f369950f9 [ 75.257737][ T5825] RDX: 0000400000000000 RSI: 0000400000000040 RDI: 0000000000000000 [ 75.257746][ T5825] RBP: 00007fffd654b3c8 R08: 0000400000000100 R09: 00007f9f36961070 [ 75.257757][ T5825] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 75.257765][ T5825] R13: 00007fffd654b628 R14: 0000000000000001 R15: 0000000000000001 mount(NULL, "./file0", "overlay", 0, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 75