wifi: iwlwifi: pcie: null RX pointers after free (CVE-2026-93796) | HOL Guard CVE

High · CVSS 7.0CVE-2026-93796

wifi: iwlwifi: pcie: null RX pointers after free

Answer in brief

CVE-2026-93796 records a High severity (CVSS 7.0) vulnerability in wifi: iwlwifi: pcie: null RX pointers after free. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 24, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.0
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 7.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6ec5bf430cf7466cb412e47f2761594092781fac \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3456c5bcc987aeb182e50e30c9b02be8420e9953 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2c79d7a7b583050c9f58041465cb46fe3483ab5d \|\| >=0 <6.12.111 \|\| >=0 <6.18.53	6ec5bf430cf7466cb412e47f2761594092781fac, 3456c5bcc987aeb182e50e30c9b02be8420e9953, 2c79d7a7b583050c9f58041465cb46fe3483ab5d, 6.12.111, 6.18.53

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux.
Review the reported fix. Update Linux/Linux to 6ec5bf430cf7466cb412e47f2761594092781fac if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: pcie: null RX pointers after free When iwl_pcie_tx_init() fails after RX init, nic init unwinds via iwl_pcie_rx_free(). The freed RX members stayed non-NULL on the live transport object, so later teardown or retry could touch stale RX state. Set rx_pool, global_table, rxq, and alloc_page to NULL after free to make repeated cleanup and retry paths safe.

Quoted source text, attributed separately from HOL analysis.