CVE-2021-46963: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() RIP: 0010:kmem_cache_free+0xfa/0x1b0 Call Trace: qla2xxx_mqueuecommand+0x2b5/0x2c0 [qla2xxx] scsi_queue_rq+0x5e2/0xa40 __blk_mq_try_issue_directly+0x128/0x1d0 blk_mq_request_issue_directly+0x4e/0xb0 Fix incorrect call to free srb in qla2xxx_mqueuecommand(), as srb is now allocated by upper layers. This fixes smatch warning of srb unintended free.

Affected products

• Linux Linux Kernel: from 4.19.90, before 4.19.191 (fixed in 4.19.191); from 5.4.4, before 5.4.118 (fixed in 5.4.118); from 5.5, before 5.10.36 (fixed in 5.10.36); from 5.11, before 5.11.20 (fixed in 5.11.20); from 5.12, before 5.12.3 (fixed in 5.12.3)

Published 2024-02-27. Last modified 2026-08-04.