7.8

CVE-2021-46963: scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand()

Modified
AliasesUBUNTU-CVE-2021-46963DEBIAN-CVE-2021-46963
Published 27-02-2024Last modified 05-08-2026

Vulnerability summary

CVE-2021-46963 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
SUSE-SU-2024:1454-1SUSE-SU-2024:1465-1SUSE-SU-2024:1489-1SUSE-SU-2024:1643-1SUSE-SU-2024:1646-1SUSE-SU-2024:1870-1

Timeline

  1. 27-02-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu82 products
  • linux< 5.4.0-77.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1051.53
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 64a8c5018a4b21b04a756a56c495ef47c14e92d9, < c5ab9b67d8b061de74e2ca51bf787ee599bd7f89 | ≥ dea6ee7173039d489977c9ed92e3749154615db4, < 77509a238547863040a42d57c72403f7d4c89a8f | ≥ af2a0c51b1205327f55a7e82e530403ae1d42cbb, < 702cdaa2c6283c135ef16d52e0e4e3c1005aa538 | ≥ af2a0c51b1205327f55a7e82e530403ae1d42cbb, < 80ef24175df2cba3860d0369d1c662b49ee2de56 | ≥ af2a0c51b1205327f55a7e82e530403ae1d42cbb, < a73208e3244127ef9f2cdf24e4adb947aaa32053 | ≥ af2a0c51b1205327f55a7e82e530403ae1d42cbb, < 6641df81ab799f28a5d564f860233dd26cca0d93 | 4a1cc2f71bc57cf8dee6f58e7d2355a43aabb312 | ≥ 4.19.90, < 4.19.191 | ≥ 5.4.4, < 5.4.118 | ≥ 5.3.17, < 5.4 | 5.5
  • linux_kernel≥ 4.19.90, < 4.19.191 | ≥ 5.4.4, < 5.4.118 | ≥ 5.5, < 5.10.36 | ≥ 5.11, < 5.11.20 | ≥ 5.12, < 5.12.3
Debian1 product
  • linux< 5.10.38-1

3 vendors · 85 products

References

10 links