9.8

CVE-2025-68741: scsi: qla2xxx: Fix improper freeing of purex item

Deferred
AliasesUBUNTU-CVE-2025-68741DEBIAN-CVE-2025-68741
Published 24-12-2025Last modified 05-08-2026

Vulnerability summary

CVE-2025-68741 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 37.2% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.43%
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 41 · Related 33
OPENSUSE-SU-2026:10039-1OPENSUSE-SU-2026:10301-1OPENSUSE-SU-2026:20287-1RHSA-2026:10996RHSA-2026:14339RHSA-2026:19568

Timeline

  1. 24-12-2025
    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 improper freeing of purex item In qla2xxx_process_purls_iocb(), an item is allocated via qla27xx_copy_multiple_pkt(), which internally calls qla24xx_alloc_purex_item(). The qla24xx_alloc_purex_item() function may return a pre-allocated item from a per-adapter pool for small allocations, instead of dynamically allocating memory with kzalloc(). An error handling path in qla2xxx_process_purls_iocb() incorrectly uses kfree() to release the item. If the item was from the pre-allocated pool, calling kfree() on it is a bug that can lead to memory corruption. Fix this by using the correct deallocation function, qla24xx_free_purex_item(), which properly handles both dynamically allocated and pre-allocated items.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.43%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.43% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu130 products
  • linux< 6.8.0-110.110 | < 6.17.0-19.19
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1052.55 | < 6.17.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.12.63-1 | < 6.17.13-1
Linux1 product
  • linux≥ 875386b98857822b77ac7f95bdf367b70af5b78c, < 4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9 | ≥ 875386b98857822b77ac7f95bdf367b70af5b78c, < 8e9f0a0717ba31d5842721627ade1e62d7aec012 | ≥ 875386b98857822b77ac7f95bdf367b70af5b78c, < cfe3e2f768d248fd3d965d561d0768a56dd0b9f8 | ≥ 875386b98857822b77ac7f95bdf367b70af5b78c, < 5fa1c8226b4532ad7011d295d3ab4ad45df105ae | ≥ 875386b98857822b77ac7f95bdf367b70af5b78c, < 78b1a242fe612a755f2158fd206ee6bb577d18ca | 6.6

3 vendors · 132 products

References

29 links
Show all 29 references