CVE-2025-71238

Kernel panic via failure-path double free

Published Mar 4, 2026 · Updated Mar 4, 2026

Double free in the qla2xxx SCSI driver in Linux Kernel 5.7 through 6.19.2 allows local users to trigger a kernel panic. Several qla_bsg.c failure paths call bsg_done() even though completion handling already releases the request, causing the same object to be freed twice. Reachability requires local access to a system using the qla2xxx driver and an affected BSG request failure; the demonstrated consequence is a kernel crash.

CVSS severity7.8
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in the qla2xxx SCSI driver in Linux Kernel 5.7 through 6.19.2 allows local users to trigger a kernel panic. Several qla_bsg.c failure paths call bsg_done() even though completion handling already releases the request, causing the same object to be freed twice. Reachability requires local access to a system using the qla2xxx driver and an affected BSG request failure; the demonstrated consequence is a kernel crash.

The record

CVE
CVE-2025-71238
Published
Mar 4, 2026
Updated
Mar 4, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-415, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <057a5bdc481e58ab853117254867ffb22caf9f6e
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <27ac9679c43a09e54e2d9aae9980ada045b428e0
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <31f33b856d2324d86bcaef295f4d210477a1c018
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <708003e1bc857dd014d4c44278d7d77c26f91b1c
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <74e7458537cd9349cf019862e51491f670871707
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <871f6236da96c4a9712b8a29d7f555f767a47e95
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c2c68225b1456f4d0d393b5a8778d51bb0d5b1d0
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f2bbb4db0e4a4fbd5e649c0b5d8733f61da24720

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <057a5bdc481e58ab853117254867ffb22caf9f6e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <27ac9679c43a09e54e2d9aae9980ada045b428e0; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <31f33b856d2324d86bcaef295f4d210477a1c018; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <708003e1bc857dd014d4c44278d7d77c26f91b1c; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <74e7458537cd9349cf019862e51491f670871707; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <871f6236da96c4a9712b8a29d7f555f767a47e95; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c2c68225b1456f4d0d393b5a8778d51bb0d5b1d0; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f2bbb4db0e4a4fbd5e649c0b5d8733f61da24720

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-415Double Free
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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