scsi: qla2xxx: Fix improper freeing of purex item
Summary
| CVE | CVE-2025-68741 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-12-24 13:16:29 UTC |
| Updated | 2026-10-13 10:10:00 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 9.8 CRITICAL from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.003730000 probability, percentile 0.300420000 (date 2026-08-01)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 875386b98857822b77ac7f95bdf367b70af5b78c 4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9 git | Not specified |
| CNA | Linux | Linux | affected 875386b98857822b77ac7f95bdf367b70af5b78c 8e9f0a0717ba31d5842721627ade1e62d7aec012 git | Not specified |
| CNA | Linux | Linux | affected 875386b98857822b77ac7f95bdf367b70af5b78c cfe3e2f768d248fd3d965d561d0768a56dd0b9f8 git | Not specified |
| CNA | Linux | Linux | affected 875386b98857822b77ac7f95bdf367b70af5b78c 5fa1c8226b4532ad7011d295d3ab4ad45df105ae git | Not specified |
| CNA | Linux | Linux | affected 875386b98857822b77ac7f95bdf367b70af5b78c 78b1a242fe612a755f2158fd206ee6bb577d18ca git | Not specified |
| CNA | Linux | Linux | affected 6.6 | Not specified |
| CNA | Linux | Linux | unaffected 6.6 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.120 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.63 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.17.13 6.17.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.2 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.19 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/cfe3e2f768d248fd3d965d561d0768a56dd0b9f8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/8e9f0a0717ba31d5842721627ade1e62d7aec012 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/78b1a242fe612a755f2158fd206ee6bb577d18ca | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/5fa1c8226b4532ad7011d295d3ab4ad45df105ae | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.