loop9: detected capacity change from 0 to 32768
JBD2: Ignoring recovery information on journal
ocfs2: Mounting device (7,9) on (node local, slot 0) with ordered data mode.
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Tainted: G L
------------------------------------------------------
syz.9.1336/12270 is trying to acquire lock:
ffff88803579eab8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_calc_xattr_init+0x20a/0xd90 fs/ocfs2/xattr.c:631
but task is already holding lock:
ffff888059f3a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline]
ffff888059f3a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x16a/0x4940 fs/ocfs2/suballoc.c:857
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}:
down_write+0x96/0x200 kernel/locking/rwsem.c:1590
inode_lock include/linux/fs.h:1028 [inline]
ocfs2_remove_inode fs/ocfs2/inode.c:733 [inline]
ocfs2_wipe_inode fs/ocfs2/inode.c:896 [inline]
ocfs2_delete_inode fs/ocfs2/inode.c:1157 [inline]
ocfs2_evict_inode+0x1539/0x44e0 fs/ocfs2/inode.c:1299
evict+0x61e/0xb10 fs/inode.c:846
ocfs2_dentry_iput+0x24d/0x390 fs/ocfs2/dcache.c:407
__dentry_kill+0x1a2/0x5e0 fs/dcache.c:670
finish_dput+0xc9/0x480 fs/dcache.c:879
end_renaming fs/namei.c:4096 [inline]
filename_renameat2+0x61e/0x9c0 fs/namei.c:6146
__do_sys_rename fs/namei.c:6188 [inline]
__se_sys_rename+0x55/0x2c0 fs/namei.c:6184
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #2 (&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]){+.+.}-{4:4}:
down_write+0x96/0x200 kernel/locking/rwsem.c:1590
inode_lock include/linux/fs.h:1028 [inline]
ocfs2_del_inode_from_orphan+0x12e/0x7a0 fs/ocfs2/namei.c:2731
ocfs2_dio_end_io_write fs/ocfs2/aops.c:2306 [inline]
ocfs2_dio_end_io+0x543/0x1210 fs/ocfs2/aops.c:2404
dio_complete+0x25b/0x790 fs/direct-io.c:281
__blockdev_direct_IO+0x2cb0/0x32f0 fs/direct-io.c:1303
ocfs2_direct_IO+0x251/0x2c0 fs/ocfs2/aops.c:2441
generic_file_direct_write+0x1db/0x3e0 mm/filemap.c:4248
__generic_file_write_iter+0x11d/0x230 mm/filemap.c:4417
ocfs2_file_write_iter+0x1663/0x1ed0 fs/ocfs2/file.c:2476
iter_file_splice_write+0x99b/0x1100 fs/splice.c:738
do_splice_from fs/splice.c:938 [inline]
direct_splice_actor+0x101/0x160 fs/splice.c:1161
splice_direct_to_actor+0x53a/0xc70 fs/splice.c:1105
do_splice_direct_actor fs/splice.c:1204 [inline]
do_splice_direct+0x195/0x290 fs/splice.c:1230
do_sendfile+0x535/0x7d0 fs/read_write.c:1372
__do_sys_sendfile64 fs/read_write.c:1433 [inline]
__se_sys_sendfile64+0x144/0x1a0 fs/read_write.c:1419
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}:
down_write+0x96/0x200 kernel/locking/rwsem.c:1590
ocfs2_try_remove_refcount_tree+0xb6/0x340 fs/ocfs2/refcounttree.c:933
ocfs2_truncate_file+0xdf3/0x1540 fs/ocfs2/file.c:522
ocfs2_setattr+0x15e5/0x1cc0 fs/ocfs2/file.c:1219
notify_change+0xc1a/0xf40 fs/attr.c:556
do_truncate+0x1c2/0x250 fs/open.c:68
handle_truncate fs/namei.c:4279 [inline]
do_open fs/namei.c:4675 [inline]
path_openat+0x2f89/0x3860 fs/namei.c:4830
do_file_open+0x23e/0x4a0 fs/namei.c:4859
do_sys_openat2+0x113/0x200 fs/open.c:1366
do_sys_open fs/open.c:1372 [inline]
__do_sys_openat fs/open.c:1388 [inline]
__se_sys_openat fs/open.c:1383 [inline]
__x64_sys_openat+0x138/0x170 fs/open.c:1383
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (&oi->ip_xattr_sem){++++}-{4:4}:
check_prev_add kernel/locking/lockdep.c:3165 [inline]
check_prevs_add kernel/locking/lockdep.c:3284 [inline]
validate_chain kernel/locking/lockdep.c:3908 [inline]
__lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237
lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868
down_read+0x47/0x2e0 kernel/locking/rwsem.c:1537
ocfs2_calc_xattr_init+0x20a/0xd90 fs/ocfs2/xattr.c:631
ocfs2_mknod+0xf51/0x2290 fs/ocfs2/namei.c:334
ocfs2_create+0x195/0x490 fs/ocfs2/namei.c:677
vfs_create+0x2d1/0x460 fs/namei.c:4176
filename_mknodat+0x3e8/0x660 fs/namei.c:5142
__do_sys_mknod fs/namei.c:5179 [inline]
__se_sys_mknod+0x3a/0x150 fs/namei.c:5176
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Chain exists of:
&oi->ip_xattr_sem --> &ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE] --> &ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]);
lock(&ocfs2_sysfile_lock_key[ORPHAN_DIR_SYSTEM_INODE]);
lock(&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]);
rlock(&oi->ip_xattr_sem);
*** DEADLOCK ***
3 locks held by syz.9.1336/12270:
#0: ffff8880363bc420 (sb_writers#40){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:493
#1: ffff88803579ed80 (&type->i_mutex_dir_key#24/1){+.+.}-{4:4}, at: inode_lock_nested include/linux/fs.h:1073 [inline]
#1: ffff88803579ed80 (&type->i_mutex_dir_key#24/1){+.+.}-{4:4}, at: __start_dirop fs/namei.c:2923 [inline]
#1: ffff88803579ed80 (&type->i_mutex_dir_key#24/1){+.+.}-{4:4}, at: start_dirop fs/namei.c:2934 [inline]
#1: ffff88803579ed80 (&type->i_mutex_dir_key#24/1){+.+.}-{4:4}, at: filename_create+0x200/0x370 fs/namei.c:4922
#2: ffff888059f3a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline]
#2: ffff888059f3a640 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x16a/0x4940 fs/ocfs2/suballoc.c:857
stack backtrace:
CPU: 1 UID: 0 PID: 12270 Comm: syz.9.1336 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2043
check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2175
check_prev_add kernel/locking/lockdep.c:3165 [inline]
check_prevs_add kernel/locking/lockdep.c:3284 [inline]
validate_chain kernel/locking/lockdep.c:3908 [inline]
__lock_acquire+0x15a5/0x2cf0 kernel/locking/lockdep.c:5237
lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868
down_read+0x47/0x2e0 kernel/locking/rwsem.c:1537
ocfs2_calc_xattr_init+0x20a/0xd90 fs/ocfs2/xattr.c:631
ocfs2_mknod+0xf51/0x2290 fs/ocfs2/namei.c:334
ocfs2_create+0x195/0x490 fs/ocfs2/namei.c:677
vfs_create+0x2d1/0x460 fs/namei.c:4176
filename_mknodat+0x3e8/0x660 fs/namei.c:5142
__do_sys_mknod fs/namei.c:5179 [inline]
__se_sys_mknod+0x3a/0x150 fs/namei.c:5176
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff36c59aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff36d4fa028 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007ff36c815fa0 RCX: 00007ff36c59aeb9
RDX: 0000000000000713 RSI: 0000000000000408 RDI: 0000200000000000
RBP: 00007ff36c608c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff36c816038 R14: 00007ff36c815fa0 R15: 00007ffc1efc7e48
OCFS2: ERROR (device loop9): int ocfs2_validate_gd_self(struct super_block *, struct buffer_head *, int): Group descriptor #17056 has bit count 2061 but max bitmap bits of 2048
On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted.
OCFS2: File system is now read-only.
(syz.9.1336,12270,1):ocfs2_search_chain:1888 ERROR: status = -30
(syz.9.1336,12270,1):ocfs2_search_chain:2011 ERROR: status = -30
(syz.9.1336,12270,1):ocfs2_claim_suballoc_bits:2098 ERROR: status = -30
(syz.9.1336,12270,1):ocfs2_claim_suballoc_bits:2151 ERROR: status = -30
(syz.9.1336,12270,1):ocfs2_claim_new_inode:2392 ERROR: status = -30
(syz.9.1336,12270,1):ocfs2_claim_new_inode:2407 ERROR: status = -30
(syz.9.1336,12270,1):ocfs2_mknod_locked:642 ERROR: status = -30
(syz.9.1336,12270,1):ocfs2_mknod:389 ERROR: status = -30
(syz.9.1336,12270,1):ocfs2_mknod:506 ERROR: status = -30
(syz.9.1336,12270,1):ocfs2_create:679 ERROR: status = -30
syzkaller0: entered promiscuous mode
syzkaller0: entered allmulticast mode
tipc: Resetting bearer