CVE-2024-53170 — Use After Free in Linux
Severity
7.8HIGHNVD
OSV8.8OSV5.5
EPSS
0.0%
top 98.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedDec 27
Latest updateMay 26
Description
In the Linux kernel, the following vulnerability has been resolved:
block: fix uaf for flush rq while iterating tags
blk_mq_clear_flush_rq_mapping() is not called during scsi probe, by
checking blk_queue_init_done(). However, QUEUE_FLAG_INIT_DONE is cleared
in del_gendisk by commit aec89dc5d421 ("block: keep q_usage_counter in
atomic mode after del_gendisk"), hence for disk like scsi, following
blk_mq_destroy_queue() will not clear flush rq from tags->rqs[] as well,
cause following uaf that is…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9