On Fri, 12 Nov 2021 17:33:54 +0800, Laibin Qiu wrote:
> KASAN reports a use-after-free report when doing block test:
>
> ==================================================================
> [10050.967049] BUG: KASAN: use-after-free in
> submit_bio_checks+0x1539/0x1550
>
> [10050.977638] Call Trace:
> [10050.978190] dump_stack+0x9b/0xce
> [10050.979674] print_address_description.constprop.6+0x3e/0x60
> [10050.983510] kasan_report.cold.9+0x22/0x3a
> [10050.986089] submit_bio_checks+0x1539/0x1550
> [10050.989576] submit_bio_noacct+0x83/0xc80
> [10050.993714] submit_bio+0xa7/0x330
> [10050.994435] mpage_readahead+0x380/0x500
> [10050.998009] read_pages+0x1c1/0xbf0
> [10051.002057] page_cache_ra_unbounded+0x4c2/0x6f0
> [10051.007413] do_page_cache_ra+0xda/0x110
> [10051.008207] force_page_cache_ra+0x23d/0x3d0
> [10051.009087] page_cache_sync_ra+0xca/0x300
> [10051.009970] generic_file_buffered_read+0xbea/0x2130
> [10051.012685] generic_file_read_iter+0x315/0x490
> [10051.014472] blkdev_read_iter+0x113/0x1b0
> [10051.015300] aio_read+0x2ad/0x450
> [10051.023786] io_submit_one+0xc8e/0x1d60
> [10051.029855] __se_sys_io_submit+0x125/0x350
> [10051.033442] do_syscall_64+0x2d/0x40
> [10051.034156] entry_SYSCALL_64_after_hwframe+0x44/0xa9
>
> [...]
Applied, thanks!
[1/1] blkcg: Remove extra blkcg_bio_issue_init
commit: b781d8db580c058ecd54ed7d5dde7f8270b25f5b
Best regards,
--
Jens Axboe
