2023-01-30 08:18:57

by syzbot

[permalink] [raw]
Subject: [syzbot] [erofs?] WARNING in z_erofs_decompress_queue

Hello,

syzbot found the following issue on:

HEAD commit: 7c46948a6e9c Merge tag 'fs.fuse.acl.v6.2-rc6' of git://git..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1360d6c1480000
kernel config: https://syzkaller.appspot.com/x/.config?x=c8d5c2ee6c2bd4b8
dashboard link: https://syzkaller.appspot.com/bug?extid=c679d2fb47506ba04298
compiler: Debian clang version 13.0.1-6~deb11u1, 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/cc51645b6401/disk-7c46948a.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/be036b5604a3/vmlinux-7c46948a.xz
kernel image: https://storage.googleapis.com/syzbot-assets/274f5abf2c8f/bzImage-7c46948a.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]

------------[ cut here ]------------
WARNING: CPU: 1 PID: 11026 at mm/page_alloc.c:5525 __alloc_pages+0x30a/0x560 mm/page_alloc.c:5525
Modules linked in:
CPU: 1 PID: 11026 Comm: syz-executor.2 Not tainted 6.2.0-rc5-syzkaller-00047-g7c46948a6e9c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:__alloc_pages+0x30a/0x560 mm/page_alloc.c:5525
Code: 5c 24 04 0f 85 f3 00 00 00 44 89 e1 81 e1 7f ff ff ff a9 00 00 04 00 41 0f 44 cc 41 89 cc e9 e3 00 00 00 c6 05 30 8a ad 0c 01 <0f> 0b 83 fb 0a 0f 86 c8 fd ff ff 31 db 48 c7 44 24 20 0e 36 e0 45
RSP: 0018:ffffc9000552db20 EFLAGS: 00010246
RAX: ffffc9000552db80 RBX: 000000000000000b RCX: 0000000000000000
RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc9000552dba8
RBP: ffffc9000552dc38 R08: dffffc0000000000 R09: ffffc9000552db80
R10: fffff52000aa5b75 R11: 1ffff92000aa5b70 R12: 0000000000048dc0
R13: 1ffff92000aa5b6c R14: dffffc0000000000 R15: 1ffff92000aa5b68
FS: 00007f3ea5dfe700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555612f888 CR3: 000000001d1c2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__alloc_pages_node include/linux/gfp.h:237 [inline]
alloc_pages_node include/linux/gfp.h:260 [inline]
__kmalloc_large_node+0x95/0x1e0 mm/slab_common.c:1113
__do_kmalloc_node mm/slab_common.c:956 [inline]
__kmalloc+0xfe/0x190 mm/slab_common.c:981
kmalloc_array include/linux/slab.h:636 [inline]
kcalloc include/linux/slab.h:667 [inline]
z_erofs_decompress_pcluster fs/erofs/zdata.c:1035 [inline]
z_erofs_decompress_queue+0x68e/0x2c20 fs/erofs/zdata.c:1141
z_erofs_decompressqueue_work fs/erofs/zdata.c:1153 [inline]
z_erofs_decompress_kickoff+0x24c/0x2f0 fs/erofs/zdata.c:1181
z_erofs_submit_queue+0xe8e/0x1050 fs/erofs/zdata.c:1509
z_erofs_runqueue fs/erofs/zdata.c:1519 [inline]
z_erofs_readahead+0x70b/0x910 fs/erofs/zdata.c:1666
read_pages+0x169/0x9c0 mm/readahead.c:161
page_cache_ra_unbounded+0x703/0x820 mm/readahead.c:270
page_cache_sync_readahead include/linux/pagemap.h:1210 [inline]
filemap_get_pages+0x465/0x10d0 mm/filemap.c:2600
filemap_read+0x3cf/0xea0 mm/filemap.c:2694
__kernel_read+0x3fc/0x830 fs/read_write.c:428
integrity_kernel_read+0xac/0xf0 security/integrity/iint.c:199
ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline]
ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
ima_calc_file_hash+0x178f/0x1ca0 security/integrity/ima/ima_crypto.c:573
ima_collect_measurement+0x444/0x8c0 security/integrity/ima/ima_api.c:292
process_measurement+0xf41/0x1bc0 security/integrity/ima/ima_main.c:339
ima_file_check+0xd8/0x130 security/integrity/ima/ima_main.c:519
do_open fs/namei.c:3559 [inline]
path_openat+0x2600/0x2dd0 fs/namei.c:3714
do_filp_open+0x264/0x4f0 fs/namei.c:3741
do_sys_openat2+0x124/0x4e0 fs/open.c:1310
do_sys_open fs/open.c:1326 [inline]
__do_sys_open fs/open.c:1334 [inline]
__se_sys_open fs/open.c:1330 [inline]
__x64_sys_open+0x221/0x270 fs/open.c:1330
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3ea728c0c9
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:00007f3ea5dfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f3ea73abf80 RCX: 00007f3ea728c0c9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007f3ea72e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd3dfcbf0f R14: 00007f3ea5dfe300 R15: 0000000000022000
</TASK>


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at [email protected].

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.


2023-04-10 09:11:20

by Gao Xiang

[permalink] [raw]
Subject: Re: [syzbot] [erofs?] WARNING in z_erofs_decompress_queue



On 2023/1/30 16:18, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 7c46948a6e9c Merge tag 'fs.fuse.acl.v6.2-rc6' of git://git..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1360d6c1480000
> kernel config: https://syzkaller.appspot.com/x/.config?x=c8d5c2ee6c2bd4b8
> dashboard link: https://syzkaller.appspot.com/bug?extid=c679d2fb47506ba04298
> compiler: Debian clang version 13.0.1-6~deb11u1, 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/cc51645b6401/disk-7c46948a.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/be036b5604a3/vmlinux-7c46948a.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/274f5abf2c8f/bzImage-7c46948a.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: [email protected]
>

#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ v6.3-rc6

> ------------[ cut here ]------------
> WARNING: CPU: 1 PID: 11026 at mm/page_alloc.c:5525 __alloc_pages+0x30a/0x560 mm/page_alloc.c:5525
> Modules linked in:
> CPU: 1 PID: 11026 Comm: syz-executor.2 Not tainted 6.2.0-rc5-syzkaller-00047-g7c46948a6e9c #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
> RIP: 0010:__alloc_pages+0x30a/0x560 mm/page_alloc.c:5525
> Code: 5c 24 04 0f 85 f3 00 00 00 44 89 e1 81 e1 7f ff ff ff a9 00 00 04 00 41 0f 44 cc 41 89 cc e9 e3 00 00 00 c6 05 30 8a ad 0c 01 <0f> 0b 83 fb 0a 0f 86 c8 fd ff ff 31 db 48 c7 44 24 20 0e 36 e0 45
> RSP: 0018:ffffc9000552db20 EFLAGS: 00010246
> RAX: ffffc9000552db80 RBX: 000000000000000b RCX: 0000000000000000
> RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc9000552dba8
> RBP: ffffc9000552dc38 R08: dffffc0000000000 R09: ffffc9000552db80
> R10: fffff52000aa5b75 R11: 1ffff92000aa5b70 R12: 0000000000048dc0
> R13: 1ffff92000aa5b6c R14: dffffc0000000000 R15: 1ffff92000aa5b68
> FS: 00007f3ea5dfe700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 000055555612f888 CR3: 000000001d1c2000 CR4: 00000000003506e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Call Trace:
> <TASK>
> __alloc_pages_node include/linux/gfp.h:237 [inline]
> alloc_pages_node include/linux/gfp.h:260 [inline]
> __kmalloc_large_node+0x95/0x1e0 mm/slab_common.c:1113
> __do_kmalloc_node mm/slab_common.c:956 [inline]
> __kmalloc+0xfe/0x190 mm/slab_common.c:981
> kmalloc_array include/linux/slab.h:636 [inline]
> kcalloc include/linux/slab.h:667 [inline]
> z_erofs_decompress_pcluster fs/erofs/zdata.c:1035 [inline]
> z_erofs_decompress_queue+0x68e/0x2c20 fs/erofs/zdata.c:1141
> z_erofs_decompressqueue_work fs/erofs/zdata.c:1153 [inline]
> z_erofs_decompress_kickoff+0x24c/0x2f0 fs/erofs/zdata.c:1181
> z_erofs_submit_queue+0xe8e/0x1050 fs/erofs/zdata.c:1509
> z_erofs_runqueue fs/erofs/zdata.c:1519 [inline]
> z_erofs_readahead+0x70b/0x910 fs/erofs/zdata.c:1666
> read_pages+0x169/0x9c0 mm/readahead.c:161
> page_cache_ra_unbounded+0x703/0x820 mm/readahead.c:270
> page_cache_sync_readahead include/linux/pagemap.h:1210 [inline]
> filemap_get_pages+0x465/0x10d0 mm/filemap.c:2600
> filemap_read+0x3cf/0xea0 mm/filemap.c:2694
> __kernel_read+0x3fc/0x830 fs/read_write.c:428
> integrity_kernel_read+0xac/0xf0 security/integrity/iint.c:199
> ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline]
> ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
> ima_calc_file_hash+0x178f/0x1ca0 security/integrity/ima/ima_crypto.c:573
> ima_collect_measurement+0x444/0x8c0 security/integrity/ima/ima_api.c:292
> process_measurement+0xf41/0x1bc0 security/integrity/ima/ima_main.c:339
> ima_file_check+0xd8/0x130 security/integrity/ima/ima_main.c:519
> do_open fs/namei.c:3559 [inline]
> path_openat+0x2600/0x2dd0 fs/namei.c:3714
> do_filp_open+0x264/0x4f0 fs/namei.c:3741
> do_sys_openat2+0x124/0x4e0 fs/open.c:1310
> do_sys_open fs/open.c:1326 [inline]
> __do_sys_open fs/open.c:1334 [inline]
> __se_sys_open fs/open.c:1330 [inline]
> __x64_sys_open+0x221/0x270 fs/open.c:1330
> do_syscall_x64 arch/x86/entry/common.c:50 [inline]
> do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
> entry_SYSCALL_64_after_hwframe+0x63/0xcd
> RIP: 0033:0x7f3ea728c0c9
> 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:00007f3ea5dfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
> RAX: ffffffffffffffda RBX: 00007f3ea73abf80 RCX: 00007f3ea728c0c9
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
> RBP: 00007f3ea72e7ae9 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
> R13: 00007ffd3dfcbf0f R14: 00007f3ea5dfe300 R15: 0000000000022000
> </TASK>
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at [email protected].
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>

2023-04-10 09:11:24

by syzbot

[permalink] [raw]
Subject: Re: [syzbot] [erofs?] WARNING in z_erofs_decompress_queue

>
>
> On 2023/1/30 16:18, syzbot wrote:
>> Hello,
>>
>> syzbot found the following issue on:
>>
>> HEAD commit: 7c46948a6e9c Merge tag 'fs.fuse.acl.v6.2-rc6' of git://git..
>> git tree: upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=1360d6c1480000
>> kernel config: https://syzkaller.appspot.com/x/.config?x=c8d5c2ee6c2bd4b8
>> dashboard link: https://syzkaller.appspot.com/bug?extid=c679d2fb47506ba04298
>> compiler: Debian clang version 13.0.1-6~deb11u1, 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/cc51645b6401/disk-7c46948a.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/be036b5604a3/vmlinux-7c46948a.xz
>> kernel image: https://storage.googleapis.com/syzbot-assets/274f5abf2c8f/bzImage-7c46948a.xz
>>
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: [email protected]
>>
>
> #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ v6.3-rc6

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

>
>> ------------[ cut here ]------------
>> WARNING: CPU: 1 PID: 11026 at mm/page_alloc.c:5525 __alloc_pages+0x30a/0x560 mm/page_alloc.c:5525
>> Modules linked in:
>> CPU: 1 PID: 11026 Comm: syz-executor.2 Not tainted 6.2.0-rc5-syzkaller-00047-g7c46948a6e9c #0
>> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
>> RIP: 0010:__alloc_pages+0x30a/0x560 mm/page_alloc.c:5525
>> Code: 5c 24 04 0f 85 f3 00 00 00 44 89 e1 81 e1 7f ff ff ff a9 00 00 04 00 41 0f 44 cc 41 89 cc e9 e3 00 00 00 c6 05 30 8a ad 0c 01 <0f> 0b 83 fb 0a 0f 86 c8 fd ff ff 31 db 48 c7 44 24 20 0e 36 e0 45
>> RSP: 0018:ffffc9000552db20 EFLAGS: 00010246
>> RAX: ffffc9000552db80 RBX: 000000000000000b RCX: 0000000000000000
>> RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc9000552dba8
>> RBP: ffffc9000552dc38 R08: dffffc0000000000 R09: ffffc9000552db80
>> R10: fffff52000aa5b75 R11: 1ffff92000aa5b70 R12: 0000000000048dc0
>> R13: 1ffff92000aa5b6c R14: dffffc0000000000 R15: 1ffff92000aa5b68
>> FS: 00007f3ea5dfe700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
>> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> CR2: 000055555612f888 CR3: 000000001d1c2000 CR4: 00000000003506e0
>> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
>> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
>> Call Trace:
>> <TASK>
>> __alloc_pages_node include/linux/gfp.h:237 [inline]
>> alloc_pages_node include/linux/gfp.h:260 [inline]
>> __kmalloc_large_node+0x95/0x1e0 mm/slab_common.c:1113
>> __do_kmalloc_node mm/slab_common.c:956 [inline]
>> __kmalloc+0xfe/0x190 mm/slab_common.c:981
>> kmalloc_array include/linux/slab.h:636 [inline]
>> kcalloc include/linux/slab.h:667 [inline]
>> z_erofs_decompress_pcluster fs/erofs/zdata.c:1035 [inline]
>> z_erofs_decompress_queue+0x68e/0x2c20 fs/erofs/zdata.c:1141
>> z_erofs_decompressqueue_work fs/erofs/zdata.c:1153 [inline]
>> z_erofs_decompress_kickoff+0x24c/0x2f0 fs/erofs/zdata.c:1181
>> z_erofs_submit_queue+0xe8e/0x1050 fs/erofs/zdata.c:1509
>> z_erofs_runqueue fs/erofs/zdata.c:1519 [inline]
>> z_erofs_readahead+0x70b/0x910 fs/erofs/zdata.c:1666
>> read_pages+0x169/0x9c0 mm/readahead.c:161
>> page_cache_ra_unbounded+0x703/0x820 mm/readahead.c:270
>> page_cache_sync_readahead include/linux/pagemap.h:1210 [inline]
>> filemap_get_pages+0x465/0x10d0 mm/filemap.c:2600
>> filemap_read+0x3cf/0xea0 mm/filemap.c:2694
>> __kernel_read+0x3fc/0x830 fs/read_write.c:428
>> integrity_kernel_read+0xac/0xf0 security/integrity/iint.c:199
>> ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline]
>> ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
>> ima_calc_file_hash+0x178f/0x1ca0 security/integrity/ima/ima_crypto.c:573
>> ima_collect_measurement+0x444/0x8c0 security/integrity/ima/ima_api.c:292
>> process_measurement+0xf41/0x1bc0 security/integrity/ima/ima_main.c:339
>> ima_file_check+0xd8/0x130 security/integrity/ima/ima_main.c:519
>> do_open fs/namei.c:3559 [inline]
>> path_openat+0x2600/0x2dd0 fs/namei.c:3714
>> do_filp_open+0x264/0x4f0 fs/namei.c:3741
>> do_sys_openat2+0x124/0x4e0 fs/open.c:1310
>> do_sys_open fs/open.c:1326 [inline]
>> __do_sys_open fs/open.c:1334 [inline]
>> __se_sys_open fs/open.c:1330 [inline]
>> __x64_sys_open+0x221/0x270 fs/open.c:1330
>> do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>> do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
>> entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> RIP: 0033:0x7f3ea728c0c9
>> 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:00007f3ea5dfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
>> RAX: ffffffffffffffda RBX: 00007f3ea73abf80 RCX: 00007f3ea728c0c9
>> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
>> RBP: 00007f3ea72e7ae9 R08: 0000000000000000 R09: 0000000000000000
>> R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
>> R13: 00007ffd3dfcbf0f R14: 00007f3ea5dfe300 R15: 0000000000022000
>> </TASK>
>>
>>
>> ---
>> This report is generated by a bot. It may contain errors.
>> See https://goo.gl/tpsmEJ for more information about syzbot.
>> syzbot engineers can be reached at [email protected].
>>
>> syzbot will keep track of this issue. See:
>> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>>