CVE-2023-52482

x86/srso: Add SRSO mitigation for Hygon processors

HIGH
7.8
CVSS Score
Published: February 29, 2024 at 05:43 AM UTC
Updated: June 17, 2026 at 06:42 AM UTC
2 products affected across 2 vendorsLinux KernelDebian Linux

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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: x86/srso: Add SRSO mitigation for Hygon processors Add mitigation for the speculative return stack overflow vulnerability which exists on Hygon processors too.

Affected

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

4.20 ≤ v < 5.10.2154.20 ≤ v < 5.15.1344.20 ≤ v < 6.1.564.20 ≤ v < 6.5.64.20 ≤ v < 6.65.10.189 ≤ v < 5.10.2155.15.125 ≤ v < 5.15.1346.1.44 ≤ v < 6.1.566.4.9 ≤ v < 6.5.66.6 rc16.6 rc26.6 rc3c9661c1e80b609cd038db7c908e061f0535804ef
Vendor states this is fixed in 6ce2f297a7168274547d0b5aea6c7c16268b8a96 (fixed)
Vendor states this is fixed in a5ef7d68cea1344cf524f04981c2b3f80bedbb0d (fixed)
Vendor states this is fixed in cf43b304b6952b549d58feabc342807b334f03d4 (fixed)
Vendor states this is fixed in e7ea043bc3f19473561c08565047b3f1671bf35d (fixed)
Vendor states this is fixed in f090a8b4d2e3ec6f318d6fdab243a2edc5a8cc37 (fixed)
Vendor states this is fixed in 4.20 (unaffected)
Vendor states this is fixed in 5.10.215 (unaffected)
Vendor states this is fixed in 5.15.134 (unaffected)
Vendor states this is fixed in 6.1.56 (unaffected)
Vendor states this is fixed in 6.5.6 (unaffected)
Vendor states this is fixed in 6.6 (unaffected)

References (6)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6ce2f297a7168274547d0b5aea6c7c16268b8a96
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a5ef7d68cea1344cf524f04981c2b3f80bedbb0d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/cf43b304b6952b549d58feabc342807b334f03d4
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e7ea043bc3f19473561c08565047b3f1671bf35d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f090a8b4d2e3ec6f318d6fdab243a2edc5a8cc37
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

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-787

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