[syzbot] kernel BUG in set_state_bits

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 04aa64375f48 drm/i915: fix TLB invalidation for Gen12 vide..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=10eaf7fd880000
kernel config: https://syzkaller.appspot.com/x/.config?x=cc4b2e0a8e8a8366
dashboard link: https://syzkaller.appspot.com/bug?extid=b9d2e54d2301324657ed
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/eb15d8caa706/disk-04aa6437.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/34b02819c252/vmlinux-04aa6437.xz
kernel image: https://storage.googleapis.com/syzbot-assets/fce6b0f68514/bzImage-04aa6437.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b9d2e5...@syzkaller.appspotmail.com

Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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
RSP: 002b:00007fd13eafe168 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fd13dfabf80 RCX: 00007fd13de8c0d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fd13eafe1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000280404 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fff8d69463f R14: 00007fd13eafe300 R15: 0000000000022000
</TASK>
------------[ cut here ]------------
kernel BUG at fs/btrfs/extent-io-tree.c:381!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 21793 Comm: syz-executor.2 Not tainted 6.1.0-rc7-syzkaller-00102-g04aa64375f48 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:set_state_bits.isra.0+0x17b/0x1c0 fs/btrfs/extent-io-tree.c:381
Code: 38 d0 7c 04 84 d2 75 31 44 8b 73 7c e8 fe df fb fd 44 89 e0 44 09 f0 89 43 7c 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 e5 df fb fd <0f> 0b 4c 89 ef e8 7b b2 48 fe e9 e6 fe ff ff 4c 89 ef e8 6e b2 48
RSP: 0018:ffffc9000bb77a90 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88801917c240 RCX: ffffc900043b3000
RDX: 0000000000040000 RSI: ffffffff8384393b RDI: 0000000000000005
RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000000 R12: 0000000000001000
R13: ffff88801917c2bc R14: 0000000000280fff R15: 0000000000000000
FS: 00007fd13eafe700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30a31000 CR3: 000000007c091000 CR4: 0000000000350ef0
Call Trace:
<TASK>
__set_extent_bit+0x79d/0x1430 fs/btrfs/extent-io-tree.c:1019
set_record_extent_bits+0x5e/0x70 fs/btrfs/extent-io-tree.c:1601
qgroup_reserve_data+0x239/0xbc0 fs/btrfs/qgroup.c:3739
btrfs_qgroup_reserve_data+0x2f/0xd0 fs/btrfs/qgroup.c:3782
btrfs_fallocate+0x7fd/0x27c0 fs/btrfs/file.c:3451
vfs_fallocate+0x48b/0xe00 fs/open.c:323
ksys_fallocate fs/open.c:346 [inline]
__do_sys_fallocate fs/open.c:354 [inline]
__se_sys_fallocate fs/open.c:352 [inline]
__x64_sys_fallocate+0xd3/0x140 fs/open.c:352
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd13de8c0d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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
RSP: 002b:00007fd13eafe168 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fd13dfabf80 RCX: 00007fd13de8c0d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007fd13eafe1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000280404 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fff8d69463f R14: 00007fd13eafe300 R15: 0000000000022000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:set_state_bits.isra.0+0x17b/0x1c0 fs/btrfs/extent-io-tree.c:381
Code: 38 d0 7c 04 84 d2 75 31 44 8b 73 7c e8 fe df fb fd 44 89 e0 44 09 f0 89 43 7c 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 e5 df fb fd <0f> 0b 4c 89 ef e8 7b b2 48 fe e9 e6 fe ff ff 4c 89 ef e8 6e b2 48
RSP: 0018:ffffc9000bb77a90 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88801917c240 RCX: ffffc900043b3000
RDX: 0000000000040000 RSI: ffffffff8384393b RDI: 0000000000000005
RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000000 R12: 0000000000001000
R13: ffff88801917c2bc R14: 0000000000280fff R15: 0000000000000000
FS: 00007fd13eafe700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30a31000 CR3: 000000007c091000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
0: 28 00 sub %al,(%rax)
2: 00 00 add %al,(%rax)
4: 75 05 jne 0xb
6: 48 83 c4 28 add $0x28,%rsp
a: c3 retq
b: e8 f1 19 00 00 callq 0x1a01
10: 90 nop
11: 48 89 f8 mov %rdi,%rax
14: 48 89 f7 mov %rsi,%rdi
17: 48 89 d6 mov %rdx,%rsi
1a: 48 89 ca mov %rcx,%rdx
1d: 4d 89 c2 mov %r8,%r10
20: 4d 89 c8 mov %r9,%r8
23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9
28: 0f 05 syscall
* 2a: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction
30: 73 01 jae 0x33
32: c3 retq
33: 48 c7 c1 b8 ff ff ff mov $0xffffffffffffffb8,%rcx
3a: f7 d8 neg %eax
3c: 64 89 01 mov %eax,%fs:(%rcx)
3f: 48 rex.W


---
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See https://goo.gl/tpsmEJ for more information about syzbot.
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[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit: 296a7b7eb792 Merge tag 'for-linus' of git://git.armlinux.o..
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=16a12ddb880000
kernel config: https://syzkaller.appspot.com/x/.config?x=4edf421741552bc3

dashboard link: https://syzkaller.appspot.com/bug?extid=b9d2e54d2301324657ed
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=12ec2ab7880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14dc4613880000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/c19ef17ae288/disk-296a7b7e.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/68d26e4d2868/vmlinux-296a7b7e.xz
kernel image: https://storage.googleapis.com/syzbot-assets/06aad301e7dd/bzImage-296a7b7e.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/5660348a6b33/mount_0.gz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b9d2e5...@syzkaller.appspotmail.com

RBP: 00007ffe8b0af640 R08: 0000000000000001 R09: 00007f4094fa0034
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

</TASK>
------------[ cut here ]------------
kernel BUG at fs/btrfs/extent-io-tree.c:381!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN

CPU: 1 PID: 3627 Comm: syz-executor376 Not tainted 6.1.0-rc8-syzkaller-00154-g296a7b7eb792 #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:set_state_bits.isra.0+0x17b/0x1c0 fs/btrfs/extent-io-tree.c:381

Code: 38 d0 7c 04 84 d2 75 31 44 8b 73 7c e8 0e cd fb fd 44 89 e0 44 09 f0 89 43 7c 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 f5 cc fb fd <0f> 0b 4c 89 ef e8 fb a6 48 fe e9 e6 fe ff ff 4c 89 ef e8 ee a6 48
RSP: 0018:ffffc90003baf860 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880790a2840 RCX: 0000000000000000
RDX: ffff888022638000 RSI: ffffffff8384510b RDI: 0000000000000005

RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000000 R12: 0000000000001000

R13: ffff8880790a28bc R14: 0000000000000fff R15: 0000000000000000
FS: 0000555555779300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 00007fff787f16e8 CR3: 0000000072e1e000 CR4: 0000000000350ee0
Call Trace:
<TASK>
insert_state_fast fs/btrfs/extent-io-tree.c:439 [inline]
__set_extent_bit+0xd09/0x1430 fs/btrfs/extent-io-tree.c:997

set_record_extent_bits+0x5e/0x70 fs/btrfs/extent-io-tree.c:1601
qgroup_reserve_data+0x239/0xbc0 fs/btrfs/qgroup.c:3739
btrfs_qgroup_reserve_data+0x2f/0xd0 fs/btrfs/qgroup.c:3782

btrfs_check_data_free_space+0x111/0x280 fs/btrfs/delalloc-space.c:152
btrfs_buffered_write+0x4f1/0x1330 fs/btrfs/file.c:1559
btrfs_direct_write fs/btrfs/file.c:1899 [inline]
btrfs_do_write_iter+0xece/0x1450 fs/btrfs/file.c:1980
call_write_iter include/linux/fs.h:2199 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x9ed/0xdd0 fs/read_write.c:584
ksys_write+0x12b/0x250 fs/read_write.c:637

do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd

RIP: 0033:0x7f4094fe1cf9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe8b0af638 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f4094fe1cf9
RDX: 0000000000000049 RSI: 0000000020000180 RDI: 0000000000000005
RBP: 00007ffe8b0af640 R08: 0000000000000001 R09: 00007f4094fa0034
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:set_state_bits.isra.0+0x17b/0x1c0 fs/btrfs/extent-io-tree.c:381

Code: 38 d0 7c 04 84 d2 75 31 44 8b 73 7c e8 0e cd fb fd 44 89 e0 44 09 f0 89 43 7c 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 f5 cc fb fd <0f> 0b 4c 89 ef e8 fb a6 48 fe e9 e6 fe ff ff 4c 89 ef e8 ee a6 48
RSP: 0018:ffffc90003baf860 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880790a2840 RCX: 0000000000000000
RDX: ffff888022638000 RSI: ffffffff8384510b RDI: 0000000000000005

RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff4 R11: 0000000000000000 R12: 0000000000001000

R13: ffff8880790a28bc R14: 0000000000000fff R15: 0000000000000000
FS: 0000555555779300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 00007fff787f16e8 CR3: 0000000072e1e000 CR4: 0000000000350ee0

[syzbot]

syzbot has bisected this issue to:

commit 05fd9564e9faf0f23b4676385e27d9405cef6637
Author: Darrick J. Wong <djw...@kernel.org>
Date: Mon Mar 14 17:55:32 2022 +0000

btrfs: fix fallocate to use file_modified to update permissions consistently

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17db2ab6480000
start commit: 296a7b7eb792 Merge tag 'for-linus' of git://git.armlinux.o..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=143b2ab6480000
console output: https://syzkaller.appspot.com/x/log.txt?x=103b2ab6480000

kernel config: https://syzkaller.appspot.com/x/.config?x=4edf421741552bc3
dashboard link: https://syzkaller.appspot.com/bug?extid=b9d2e54d2301324657ed

syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12ec2ab7880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14dc4613880000

Reported-by: syzbot+b9d2e5...@syzkaller.appspotmail.com
Fixes: 05fd9564e9fa ("btrfs: fix fallocate to use file_modified to update permissions consistently")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection