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CVE-2024-26824

crypto: algif_hash - Remove bogus SGL free on zero-length error path

MEDIUM
5.5
CVSS Score
Published: April 17, 2024 at 09:43 AM UTC
Updated: August 5, 2026 at 12:04 PM 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: crypto: algif_hash - Remove bogus SGL free on zero-length error path When a zero-length message is hashed by algif_hash, and an error is triggered, it tries to free an SG list that was never allocated in the first place. Fix this by not freeing the SG list on the zero-length error path.

Affected

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

Linux Kernel· Linux
95%
6.5 ≤ v < 6.6.186.5 ≤ v < 6.7.66.5 ≤ v < 6.86.7 ≤ v < 6.7.66.8 rc16.8 rc26.8 rc3b6d972f6898308fbe7e693bf8d44ebfdb1cd2dc4
Vendor states this is fixed in 24c890dd712f6345e382256cae8c97abb0406b70 (fixed)
Vendor states this is fixed in 775f3c1882a493168e08fdb8cde0865c8f3a8a29 (fixed)
Vendor states this is fixed in 9c82920359b7c1eddaf72069bcfe0ffddf088cd0 (fixed)
Vendor states this is fixed in 6.5 (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/24c890dd712f6345e382256cae8c97abb0406b70
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/775f3c1882a493168e08fdb8cde0865c8f3a8a29
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9c82920359b7c1eddaf72069bcfe0ffddf088cd0

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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