[syzbot] [bpf?] [reiserfs?] WARNING: locking bug in corrupted (2)

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: c17414a273b8 Merge tag 'sh-for-v6.5-tag1' of git://git.ker..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13cc4baca80000
kernel config: https://syzkaller.appspot.com/x/.config?x=7ad417033279f15a
dashboard link: https://syzkaller.appspot.com/bug?extid=3779764ddb7a3e19437f
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12bbd544a80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13fd50b0a80000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ea495e93586c/disk-c17414a2.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/bdb03e817e47/vmlinux-c17414a2.xz
kernel image: https://storage.googleapis.com/syzbot-assets/20ba23616f1f/bzImage-c17414a2.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/98d086ce1a87/mount_0.gz

The issue was bisected to:

commit 2acf15b94d5b8ea8392c4b6753a6ffac3135cd78
Author: Yu Kuai <yuk...@huawei.com>
Date: Fri Jul 2 04:07:43 2021 +0000

reiserfs: add check for root_inode in reiserfs_fill_super

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=143b663ca80000
final oops: https://syzkaller.appspot.com/x/report.txt?x=163b663ca80000
console output: https://syzkaller.appspot.com/x/log.txt?x=123b663ca80000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+377976...@syzkaller.appspotmail.com
Fixes: 2acf15b94d5b ("reiserfs: add check for root_inode in reiserfs_fill_super")

------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(depth >= MAX_LOCK_DEPTH)
WARNING: CPU: 0 PID: 0 at kernel/locking/lockdep.c:5045 __lock_acquire+0x164b/0x5e20 kernel/locking/lockdep.c:5045
Modules linked in:
CPU: 0 PID: 0 Comm: Not tainted 6.4.0-syzkaller-12069-gc17414a273b8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:__lock_acquire+0x164b/0x5e20 kernel/locking/lockdep.c:5045
Code: d2 0f 85 be 47 00 00 44 8b 3d 0d b3 44 0d 45 85 ff 0f 85 40 f8 ff ff 48 c7 c6 40 9f 6c 8a 48 c7 c7 e0 6e 6c 8a e8 b5 46 e6 ff <0f> 0b e9 29 f8 ff ff 48 8d 7d f8 48 b8 00 00 00 00 00 fc ff df 48
RSP: 0018:ffffc90000007ca8 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 1ffff92000000fc7 RCX: 0000000000000000
RDX: ffff8880779d5940 RSI: ffffffff814c34f7 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880779d5940
R13: ffff8880b982b898 R14: 0000000000000000 R15: 0000000000000000
FS: 00005555573b8300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffde3197000 CR3: 00000000173e2000 CR4: 0000000000350ef0
Call Trace:
<IRQ>
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at kernel/rcu/tree_plugin.h:431 arch_local_irq_enable arch/x86/include/asm/irqflags.h:78 [inline]
WARNING: CPU: 0 PID: 0 at kernel/rcu/tree_plugin.h:431 arch_local_irq_restore arch/x86/include/asm/irqflags.h:135 [inline]
WARNING: CPU: 0 PID: 0 at kernel/rcu/tree_plugin.h:431 rcu_read_unlock_special kernel/rcu/tree_plugin.h:678 [inline]
WARNING: CPU: 0 PID: 0 at kernel/rcu/tree_plugin.h:431 __rcu_read_unlock+0x24b/0x570 kernel/rcu/tree_plugin.h:426
Modules linked in:
CPU: 0 PID: 0 Comm: Not tainted 6.4.0-syzkaller-12069-gc17414a273b8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:__rcu_read_unlock+0x24b/0x570 kernel/rcu/tree_plugin.h:431
Code: 00 e8 49 4f df ff 4d 85 f6 74 05 e8 cf c3 1c 00 9c 58 f6 c4 02 0f 85 78 02 00 00 4d 85 f6 0f 84 83 fe ff ff fb e9 7d fe ff ff <0f> 0b 5b 5d 41 5c 41 5d 41 5e c3 e8 25 50 69 00 e9 2a fe ff ff e8
RSP: 0018:ffffc900000079d8 EFLAGS: 00010096
RAX: 00000000ffff8880 RBX: ffff8880779d5940 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8192bb90 RDI: ffff8880779d5d7c
RBP: ffff8880779d5940 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880779d5940
R13: ffffc90000007bf8 R14: 0000000000000000 R15: ffffc90000007a98
FS: 00005555573b8300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffde3197000 CR3: 00000000173e2000 CR4: 0000000000350ef0
Call Trace:
<IRQ>
rcu_read_unlock include/linux/rcupdate.h:781 [inline]
is_bpf_text_address+0x85/0x1b0 kernel/bpf/core.c:721
kernel_text_address kernel/extable.c:125 [inline]
kernel_text_address+0x3d/0x80 kernel/extable.c:94
__kernel_text_address+0xd/0x30 kernel/extable.c:79
show_trace_log_lvl+0x1c7/0x390 arch/x86/kernel/dumpstack.c:259
__warn+0xe6/0x390 kernel/panic.c:671
__report_bug lib/bug.c:199 [inline]
report_bug+0x2da/0x500 lib/bug.c:219
handle_bug+0x3c/0x70 arch/x86/kernel/traps.c:324
exc_invalid_op+0x18/0x50 arch/x86/kernel/traps.c:345
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:568
RIP: 0010:__lock_acquire+0x164b/0x5e20 kernel/locking/lockdep.c:5045
Code: d2 0f 85 be 47 00 00 44 8b 3d 0d b3 44 0d 45 85 ff 0f 85 40 f8 ff ff 48 c7 c6 40 9f 6c 8a 48 c7 c7 e0 6e 6c 8a e8 b5 46 e6 ff <0f> 0b e9 29 f8 ff ff 48 8d 7d f8 48 b8 00 00 00 00 00 fc ff df 48
RSP: 0018:ffffc90000007ca8 EFLAGS: 00010082
RAX: 0000000000000000 RBX: 1ffff92000000fc7 RCX: 0000000000000000
RDX: ffff8880779d5940 RSI: ffffffff814c34f7 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880779d5940
R13: ffff8880b982b898 R14: 0000000000000000 R15: 0000000000000000
lock_acquire kernel/locking/lockdep.c:5761 [inline]
lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5726
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162
hrtimer_interrupt+0x107/0x7b0 kernel/time/hrtimer.c:1795
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline]
__sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1115
sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1109
</IRQ>


---
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If the bug is already fixed, let syzbot know by replying with:
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[syzbot]

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***

Subject: Test
Author: tinti...@gmail.com

#syz test:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

[syzbot]

[Attreyee M]

#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

[syzbot]

> #syz test:

This crash does not have a reproducer. I cannot test it.

> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

[syzbot]

syzbot suspects this issue was fixed by commit:

commit 6f861765464f43a71462d52026fbddfc858239a5
Author: Jan Kara <ja...@suse.cz>
Date: Wed Nov 1 17:43:10 2023 +0000

fs: Block writes to mounted block devices

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=120430a5e80000
start commit: c17414a273b8 Merge tag 'sh-for-v6.5-tag1' of git://git.ker..
git tree: upstream

kernel config: https://syzkaller.appspot.com/x/.config?x=7ad417033279f15a
dashboard link: https://syzkaller.appspot.com/bug?extid=3779764ddb7a3e19437f

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12bbd544a80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13fd50b0a80000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: fs: Block writes to mounted block devices

[Jan Kara]

On Thu 11-01-24 08:35:04, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
>
> commit 6f861765464f43a71462d52026fbddfc858239a5
> Author: Jan Kara <ja...@suse.cz>
> Date: Wed Nov 1 17:43:10 2023 +0000
>
> fs: Block writes to mounted block devices
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=120430a5e80000
> start commit: c17414a273b8 Merge tag 'sh-for-v6.5-tag1' of git://git.ker..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=7ad417033279f15a
> dashboard link: https://syzkaller.appspot.com/bug?extid=3779764ddb7a3e19437f
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12bbd544a80000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13fd50b0a80000
>
> If the result looks correct, please mark the issue as fixed by replying with:

Looks plausible.

#syz fix: fs: Block writes to mounted block devices

Honza
--
Jan Kara <ja...@suse.com>
SUSE Labs, CR