CVE-2021-47141

gve: Add NULL pointer checks when freeing irqs.

MEDIUM
5.5
CVSS Score
Published: March 25, 2024 at 09:07 AM UTC
Updated: June 17, 2026 at 04:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: gve: Add NULL pointer checks when freeing irqs. When freeing notification blocks, we index priv->msix_vectors. If we failed to allocate priv->msix_vectors (see abort_with_msix_vectors) this could lead to a NULL pointer dereference if the driver is unloaded.

Affected

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

5.11 ≤ v < 5.12.95.3 ≤ v < 5.10.425.3 ≤ v < 5.12.95.3 ≤ v < 5.135.3 ≤ v < 5.4.1245.5 ≤ v < 5.10.425.13 rc15.13 rc25.13 rc3893ce44df56580fb878ca5af9c4a5fd87567da50
Vendor states this is fixed in 5218e919c8d06279884aa0baf76778a6817d5b93 (fixed)
Vendor states this is fixed in 5278c75266c5094d3c0958793bf12fc90300e580 (fixed)
Vendor states this is fixed in 821149ee88c206fa37e79c1868cc270518484876 (fixed)
Vendor states this is fixed in da21a35c00ff1a1794d4f166d3b3fa8db4d0f6fb (fixed)
Vendor states this is fixed in 5.10.42 (unaffected)
Vendor states this is fixed in 5.12.9 (unaffected)
Vendor states this is fixed in 5.13 (unaffected)
Vendor states this is fixed in 5.3 (unaffected)
Vendor states this is fixed in 5.4.124 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5218e919c8d06279884aa0baf76778a6817d5b93
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5278c75266c5094d3c0958793bf12fc90300e580
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/821149ee88c206fa37e79c1868cc270518484876
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/da21a35c00ff1a1794d4f166d3b3fa8db4d0f6fb

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
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-476

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