REISERFS (device loop3): Created .reiserfs_priv - reserved for xattr storage.
======================================================
WARNING: possible circular locking dependency detected
6.7.0-rc8-syzkaller-g0802e17d9aca #0 Not tainted
------------------------------------------------------
syz-executor.3/27921 is trying to acquire lock:
ffff8000978e90f0 (&journal->j_mutex){+.+.}-{3:3}, at: reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:813 [inline]
ffff8000978e90f0 (&journal->j_mutex){+.+.}-{3:3}, at: lock_journal fs/reiserfs/journal.c:533 [inline]
ffff8000978e90f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x2e0/0xe40 fs/reiserfs/journal.c:3047
but task is already holding lock:
ffff000129eb6418 (sb_writers#24){.+.+}-{0:0}, at: mnt_want_write_file+0x64/0x1e8 fs/namespace.c:448
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (sb_writers#24){.+.+}-{0:0}:
percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
__sb_start_write include/linux/fs.h:1635 [inline]
sb_start_write+0x60/0x2ec include/linux/fs.h:1710
mnt_want_write_file+0x64/0x1e8 fs/namespace.c:448
reiserfs_ioctl+0x188/0x42c fs/reiserfs/ioctl.c:103
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
-> #1 (&sbi->lock){+.+.}-{3:3}:
__mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799
reiserfs_write_lock_nested+0x68/0xd8 fs/reiserfs/lock.c:78
reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:814 [inline]
lock_journal fs/reiserfs/journal.c:533 [inline]
do_journal_begin_r+0x2ec/0xe40 fs/reiserfs/journal.c:3047
journal_begin+0x110/0x2f4 fs/reiserfs/journal.c:3254
reiserfs_fill_super+0x14e0/0x2028 fs/reiserfs/super.c:2104
mount_bdev+0x1e8/0x2b4 fs/super.c:1650
get_super_block+0x44/0x58 fs/reiserfs/super.c:2601
legacy_get_tree+0xd4/0x16c fs/fs_context.c:662
vfs_get_tree+0x90/0x288 fs/super.c:1771
do_new_mount+0x25c/0x8c8 fs/namespace.c:3337
path_mount+0x590/0xe04 fs/namespace.c:3664
do_mount fs/namespace.c:3677 [inline]
__do_sys_mount fs/namespace.c:3886 [inline]
__se_sys_mount fs/namespace.c:3863 [inline]
__arm64_sys_mount+0x45c/0x594 fs/namespace.c:3863
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
-> #0
(&journal->j_mutex){+.+.}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain kernel/locking/lockdep.c:3869 [inline]
__lock_acquire+0x3384/0x763c kernel/locking/lockdep.c:5137
lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5754
__mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799
reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:813 [inline]
lock_journal fs/reiserfs/journal.c:533 [inline]
do_journal_begin_r+0x2e0/0xe40 fs/reiserfs/journal.c:3047
journal_begin+0x110/0x2f4 fs/reiserfs/journal.c:3254
reiserfs_dirty_inode+0x104/0x204 fs/reiserfs/super.c:710
__mark_inode_dirty+0x2b0/0x10f4 fs/fs-writeback.c:2452
mark_inode_dirty include/linux/fs.h:2306 [inline]
reiserfs_ioctl+0x330/0x42c fs/reiserfs/ioctl.c:111
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
other info that might help us debug this:
Chain exists of:
&journal->j_mutex --> &sbi->lock --> sb_writers#24
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
rlock(sb_writers#24);
lock(&sbi->lock);
lock(sb_writers#24);
lock(&journal->j_mutex);
*** DEADLOCK ***
1 lock held by syz-executor.3/27921:
#0: ffff000129eb6418 (sb_writers#24){.+.+}-{0:0}, at: mnt_want_write_file+0x64/0x1e8 fs/namespace.c:448
stack backtrace:
CPU: 0 PID: 27921 Comm: syz-executor.3 Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call trace:
dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
dump_stack+0x1c/0x28 lib/dump_stack.c:113
print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2060
check_noncircular+0x310/0x404 kernel/locking/lockdep.c:2187
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain kernel/locking/lockdep.c:3869 [inline]
__lock_acquire+0x3384/0x763c kernel/locking/lockdep.c:5137
lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5754
__mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:603
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:799
reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:813 [inline]
lock_journal fs/reiserfs/journal.c:533 [inline]
do_journal_begin_r+0x2e0/0xe40 fs/reiserfs/journal.c:3047
journal_begin+0x110/0x2f4 fs/reiserfs/journal.c:3254
reiserfs_dirty_inode+0x104/0x204 fs/reiserfs/super.c:710
__mark_inode_dirty+0x2b0/0x10f4 fs/fs-writeback.c:2452
mark_inode_dirty include/linux/fs.h:2306 [inline]
reiserfs_ioctl+0x330/0x42c fs/reiserfs/ioctl.c:111
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:871 [inline]
__se_sys_ioctl fs/ioctl.c:857 [inline]
__arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595