CVE-2024-26694

wifi: iwlwifi: fix double-free bug

HIGH
7.8
CVSS Score
Published: April 3, 2024 at 02:54 PM UTC
Updated: June 17, 2026 at 07:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix double-free bug The storage for the TLV PC register data wasn't done like all the other storage in the drv->fw area, which is cleared at the end of deallocation. Therefore, the freeing must also be done differently, explicitly NULL'ing it out after the free, since otherwise there's a nasty double-free bug here if a file fails to load after this has been parsed, and we get another free later (e.g. because no other file exists.) Fix that by adding the missing NULL assignment.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.4 ≤ v < 6.6.186.4 ≤ v < 6.7.66.4 ≤ v < 6.86.7 ≤ v < 6.7.65e31b3df86ec6fbb925eee77fe2c450099c61dff6.8 rc16.8 rc26.8 rc3
Vendor states this is fixed in 353d321f63f7dbfc9ef58498cc732c9fe886a596 (fixed)
Vendor states this is fixed in ab9d4bb9a1892439b3123fc52b19e32b9cdf80ad (fixed)
Vendor states this is fixed in d24eb9a27bea8fe5237fa71be274391d9d51eff2 (fixed)
Vendor states this is fixed in 6.4 (unaffected)
Vendor states this is fixed in 6.6.18 (unaffected)
Vendor states this is fixed in 6.7.6 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/353d321f63f7dbfc9ef58498cc732c9fe886a596
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ab9d4bb9a1892439b3123fc52b19e32b9cdf80ad
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d24eb9a27bea8fe5237fa71be274391d9d51eff2

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-415

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