[moderation] [xfs?] KASAN: slab-out-of-bounds Write in xlog_cil_push_work
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syzbot
Jun 2, 2024, 5:23:27 AMJun 2
to syzkaller-upst...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: e0cce98fe279 Merge tag 'tpmdd-next-6.10-rc2' of git://git...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=110691ec980000
kernel config: https://syzkaller.appspot.com/x/.config?x=733cc7a95171d8e7
dashboard link: https://syzkaller.appspot.com/bug?extid=83b9b8ec3e9bb4474fb9
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: i386
CC: [chanda...@oracle.com djw...@kernel.org linux-...@vger.kernel.org linu...@vger.kernel.org]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-e0cce98f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/eb24795b031d/vmlinux-e0cce98f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/bcfa9241b1bb/bzImage-e0cce98f.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+83b9b8...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: slab-out-of-bounds in __list_splice include/linux/list.h:530 [inline]
BUG: KASAN: slab-out-of-bounds in list_splice_init include/linux/list.h:572 [inline]
BUG: KASAN: slab-out-of-bounds in xlog_cil_push_pcp_aggregate fs/xfs/xfs_log_cil.c:137 [inline]
BUG: KASAN: slab-out-of-bounds in xlog_cil_push_work+0x1d9b/0x21d0 fs/xfs/xfs_log_cil.c:1168
Write of size 8 at addr ffff88802a084507 by task kworker/u32:2/45
CPU: 3 PID: 45 Comm: kworker/u32:2 Not tainted 6.10.0-rc1-syzkaller-00021-ge0cce98fe279 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: xfs-cil/loop0 xlog_cil_push_work
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
__list_splice include/linux/list.h:530 [inline]
list_splice_init include/linux/list.h:572 [inline]
xlog_cil_push_pcp_aggregate fs/xfs/xfs_log_cil.c:137 [inline]
xlog_cil_push_work+0x1d9b/0x21d0 fs/xfs/xfs_log_cil.c:1168
process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Allocated by task 6524:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:312 [inline]
__kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:338
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3940 [inline]
slab_alloc_node mm/slub.c:4000 [inline]
kmem_cache_alloc_noprof+0x121/0x2f0 mm/slub.c:4007
xfs_inode_item_init+0x24/0xc0 fs/xfs/xfs_inode_item.c:838
xfs_trans_ijoin+0xfc/0x160 fs/xfs/libxfs/xfs_trans_inode.c:36
xfs_init_new_inode+0x881/0x1870 fs/xfs/xfs_inode.c:881
xfs_qm_qino_alloc+0x244/0x6b0 fs/xfs/xfs_qm.c:800
xfs_qm_init_quotainos+0x57b/0x6d0 fs/xfs/xfs_qm.c:1601
xfs_qm_init_quotainfo+0xf8/0xac0 fs/xfs/xfs_qm.c:643
xfs_qm_mount_quotas+0x59/0x650 fs/xfs/xfs_qm.c:1477
xfs_mountfs+0x1b72/0x1e80 fs/xfs/xfs_mount.c:980
xfs_fs_fill_super+0x1434/0x1df0 fs/xfs/xfs_super.c:1753
get_tree_bdev+0x36f/0x610 fs/super.c:1615
vfs_get_tree+0x8f/0x380 fs/super.c:1780
do_new_mount fs/namespace.c:3352 [inline]
path_mount+0x6e1/0x1f10 fs/namespace.c:3679
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount fs/namespace.c:3875 [inline]
__ia32_sys_mount+0x295/0x320 fs/namespace.c:3875
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
The buggy address belongs to the object at ffff88802a0843d8
which belongs to the cache xfs_ili of size 264
The buggy address is located 39 bytes to the right of
allocated 264-byte region [ffff88802a0843d8, ffff88802a0844e0)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802a084520 pfn:0x2a084
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffefff(slab)
raw: 00fff00000000040 ffff8880196f3b80 dead000000000122 0000000000000000
raw: ffff88802a084520 0000000080180014 00000001ffffefff 0000000000000000
head: 00fff00000000040 ffff8880196f3b80 dead000000000122 0000000000000000
head: ffff88802a084520 0000000080180014 00000001ffffefff 0000000000000000
head: 00fff00000000001 ffffea0000a82101 ffffffffffffffff 0000000000000000
head: ffff888000000002 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 5393, tgid 5392 (syz-executor.1), ts 55333370466, free_ts 51671300773
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1468
prep_new_page mm/page_alloc.c:1476 [inline]
get_page_from_freelist+0x136a/0x2df0 mm/page_alloc.c:3402
__alloc_pages_noprof+0x22b/0x2460 mm/page_alloc.c:4660
__alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
alloc_slab_page+0x56/0x110 mm/slub.c:2264
allocate_slab mm/slub.c:2427 [inline]
new_slab+0x84/0x260 mm/slub.c:2480
___slab_alloc+0xdac/0x1870 mm/slub.c:3666
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3756
__slab_alloc_node mm/slub.c:3809 [inline]
slab_alloc_node mm/slub.c:3988 [inline]
kmem_cache_alloc_noprof+0x2ae/0x2f0 mm/slub.c:4007
xfs_inode_item_init+0x24/0xc0 fs/xfs/xfs_inode_item.c:838
xfs_trans_ijoin+0xfc/0x160 fs/xfs/libxfs/xfs_trans_inode.c:36
xfs_init_new_inode+0x881/0x1870 fs/xfs/xfs_inode.c:881
xfs_qm_qino_alloc+0x244/0x6b0 fs/xfs/xfs_qm.c:800
xfs_qm_init_quotainos+0x57b/0x6d0 fs/xfs/xfs_qm.c:1601
xfs_qm_init_quotainfo+0xf8/0xac0 fs/xfs/xfs_qm.c:643
xfs_qm_mount_quotas+0x59/0x650 fs/xfs/xfs_qm.c:1477
xfs_mountfs+0x1b72/0x1e80 fs/xfs/xfs_mount.c:980
page last free pid 5324 tgid 5324 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1088 [inline]
free_unref_page+0x64a/0xe40 mm/page_alloc.c:2565
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:322
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3940 [inline]
slab_alloc_node mm/slub.c:4000 [inline]
kmem_cache_alloc_noprof+0x121/0x2f0 mm/slub.c:4007
getname_flags.part.0+0x50/0x4f0 fs/namei.c:139
getname_flags+0x9b/0xf0 include/linux/audit.h:322
vfs_fstatat+0x9a/0x150 fs/stat.c:303
__do_sys_newfstatat+0xa6/0x130 fs/stat.c:468
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff88802a084400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88802a084480: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff88802a084500: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb
^
ffff88802a084580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802a084600: fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb
==================================================================
---
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 syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: e0cce98fe279 Merge tag 'tpmdd-next-6.10-rc2' of git://git...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=110691ec980000
kernel config: https://syzkaller.appspot.com/x/.config?x=733cc7a95171d8e7
dashboard link: https://syzkaller.appspot.com/bug?extid=83b9b8ec3e9bb4474fb9
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: i386
CC: [chanda...@oracle.com djw...@kernel.org linux-...@vger.kernel.org linu...@vger.kernel.org]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-e0cce98f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/eb24795b031d/vmlinux-e0cce98f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/bcfa9241b1bb/bzImage-e0cce98f.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+83b9b8...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: slab-out-of-bounds in __list_splice include/linux/list.h:530 [inline]
BUG: KASAN: slab-out-of-bounds in list_splice_init include/linux/list.h:572 [inline]
BUG: KASAN: slab-out-of-bounds in xlog_cil_push_pcp_aggregate fs/xfs/xfs_log_cil.c:137 [inline]
BUG: KASAN: slab-out-of-bounds in xlog_cil_push_work+0x1d9b/0x21d0 fs/xfs/xfs_log_cil.c:1168
Write of size 8 at addr ffff88802a084507 by task kworker/u32:2/45
CPU: 3 PID: 45 Comm: kworker/u32:2 Not tainted 6.10.0-rc1-syzkaller-00021-ge0cce98fe279 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: xfs-cil/loop0 xlog_cil_push_work
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
__list_splice include/linux/list.h:530 [inline]
list_splice_init include/linux/list.h:572 [inline]
xlog_cil_push_pcp_aggregate fs/xfs/xfs_log_cil.c:137 [inline]
xlog_cil_push_work+0x1d9b/0x21d0 fs/xfs/xfs_log_cil.c:1168
process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Allocated by task 6524:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:312 [inline]
__kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:338
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3940 [inline]
slab_alloc_node mm/slub.c:4000 [inline]
kmem_cache_alloc_noprof+0x121/0x2f0 mm/slub.c:4007
xfs_inode_item_init+0x24/0xc0 fs/xfs/xfs_inode_item.c:838
xfs_trans_ijoin+0xfc/0x160 fs/xfs/libxfs/xfs_trans_inode.c:36
xfs_init_new_inode+0x881/0x1870 fs/xfs/xfs_inode.c:881
xfs_qm_qino_alloc+0x244/0x6b0 fs/xfs/xfs_qm.c:800
xfs_qm_init_quotainos+0x57b/0x6d0 fs/xfs/xfs_qm.c:1601
xfs_qm_init_quotainfo+0xf8/0xac0 fs/xfs/xfs_qm.c:643
xfs_qm_mount_quotas+0x59/0x650 fs/xfs/xfs_qm.c:1477
xfs_mountfs+0x1b72/0x1e80 fs/xfs/xfs_mount.c:980
xfs_fs_fill_super+0x1434/0x1df0 fs/xfs/xfs_super.c:1753
get_tree_bdev+0x36f/0x610 fs/super.c:1615
vfs_get_tree+0x8f/0x380 fs/super.c:1780
do_new_mount fs/namespace.c:3352 [inline]
path_mount+0x6e1/0x1f10 fs/namespace.c:3679
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount fs/namespace.c:3875 [inline]
__ia32_sys_mount+0x295/0x320 fs/namespace.c:3875
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386
do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
The buggy address belongs to the object at ffff88802a0843d8
which belongs to the cache xfs_ili of size 264
The buggy address is located 39 bytes to the right of
allocated 264-byte region [ffff88802a0843d8, ffff88802a0844e0)
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802a084520 pfn:0x2a084
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffefff(slab)
raw: 00fff00000000040 ffff8880196f3b80 dead000000000122 0000000000000000
raw: ffff88802a084520 0000000080180014 00000001ffffefff 0000000000000000
head: 00fff00000000040 ffff8880196f3b80 dead000000000122 0000000000000000
head: ffff88802a084520 0000000080180014 00000001ffffefff 0000000000000000
head: 00fff00000000001 ffffea0000a82101 ffffffffffffffff 0000000000000000
head: ffff888000000002 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Reclaimable, gfp_mask 0x1d2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_RECLAIMABLE), pid 5393, tgid 5392 (syz-executor.1), ts 55333370466, free_ts 51671300773
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1468
prep_new_page mm/page_alloc.c:1476 [inline]
get_page_from_freelist+0x136a/0x2df0 mm/page_alloc.c:3402
__alloc_pages_noprof+0x22b/0x2460 mm/page_alloc.c:4660
__alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
alloc_slab_page+0x56/0x110 mm/slub.c:2264
allocate_slab mm/slub.c:2427 [inline]
new_slab+0x84/0x260 mm/slub.c:2480
___slab_alloc+0xdac/0x1870 mm/slub.c:3666
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3756
__slab_alloc_node mm/slub.c:3809 [inline]
slab_alloc_node mm/slub.c:3988 [inline]
kmem_cache_alloc_noprof+0x2ae/0x2f0 mm/slub.c:4007
xfs_inode_item_init+0x24/0xc0 fs/xfs/xfs_inode_item.c:838
xfs_trans_ijoin+0xfc/0x160 fs/xfs/libxfs/xfs_trans_inode.c:36
xfs_init_new_inode+0x881/0x1870 fs/xfs/xfs_inode.c:881
xfs_qm_qino_alloc+0x244/0x6b0 fs/xfs/xfs_qm.c:800
xfs_qm_init_quotainos+0x57b/0x6d0 fs/xfs/xfs_qm.c:1601
xfs_qm_init_quotainfo+0xf8/0xac0 fs/xfs/xfs_qm.c:643
xfs_qm_mount_quotas+0x59/0x650 fs/xfs/xfs_qm.c:1477
xfs_mountfs+0x1b72/0x1e80 fs/xfs/xfs_mount.c:980
page last free pid 5324 tgid 5324 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1088 [inline]
free_unref_page+0x64a/0xe40 mm/page_alloc.c:2565
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:322
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3940 [inline]
slab_alloc_node mm/slub.c:4000 [inline]
kmem_cache_alloc_noprof+0x121/0x2f0 mm/slub.c:4007
getname_flags.part.0+0x50/0x4f0 fs/namei.c:139
getname_flags+0x9b/0xf0 include/linux/audit.h:322
vfs_fstatat+0x9a/0x150 fs/stat.c:303
__do_sys_newfstatat+0xa6/0x130 fs/stat.c:468
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Memory state around the buggy address:
ffff88802a084400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88802a084480: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff88802a084500: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb
^
ffff88802a084580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802a084600: fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb
==================================================================
---
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 syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
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