CVE-2021-46963

low-risk
Published 2024-02-27

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.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (12)

Patch https://git.kernel.org/stable/c/6641df81ab799f28a5d564f860233dd26cca0d93
Patch https://git.kernel.org/stable/c/702cdaa2c6283c135ef16d52e0e4e3c1005aa538
Patch https://git.kernel.org/stable/c/77509a238547863040a42d57c72403f7d4c89a8f
Patch https://git.kernel.org/stable/c/80ef24175df2cba3860d0369d1c662b49ee2de56
Patch https://git.kernel.org/stable/c/a73208e3244127ef9f2cdf24e4adb947aaa32053
Patch https://git.kernel.org/stable/c/c5ab9b67d8b061de74e2ca51bf787ee599bd7f89
Patch https://git.kernel.org/stable/c/6641df81ab799f28a5d564f860233dd26cca0d93
Patch https://git.kernel.org/stable/c/702cdaa2c6283c135ef16d52e0e4e3c1005aa538
Patch https://git.kernel.org/stable/c/77509a238547863040a42d57c72403f7d4c89a8f
Patch https://git.kernel.org/stable/c/80ef24175df2cba3860d0369d1c662b49ee2de56
Patch https://git.kernel.org/stable/c/a73208e3244127ef9f2cdf24e4adb947aaa32053
Patch https://git.kernel.org/stable/c/c5ab9b67d8b061de74e2ca51bf787ee599bd7f89
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal