CVE-2024-50174

drm/panthor: Fix race when converting group handle to group object

MEDIUM
4.7
CVSS Score
Published: November 8, 2024 at 05:23 AM UTC
Updated: August 5, 2026 at 12:05 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix race when converting group handle to group object XArray provides it's own internal lock which protects the internal array when entries are being simultaneously added and removed. However there is still a race between retrieving the pointer from the XArray and incrementing the reference count. To avoid this race simply hold the internal XArray lock when incrementing the reference count, this ensures there cannot be a racing call to xa_erase().

Affected

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

6.10 ≤ v < 6.10.146.10 ≤ v < 6.11.36.10 ≤ v < 6.126.11 ≤ v < 6.11.36.12 rc1de85488138247d034eb3241840424a54d660926b
Vendor states this is fixed in 44742138d151c3a945460ae7beff8ae45ac0bf58 (fixed)
Vendor states this is fixed in 8a585d553c11965332d7a2d74e79ef92a42bfc87 (fixed)
Vendor states this is fixed in cac075706f298948898b1f63e81709df42afa75d (fixed)
Vendor states this is fixed in 6.10 (unaffected)
Vendor states this is fixed in 6.10.14 (unaffected)
Vendor states this is fixed in 6.11.3 (unaffected)
Vendor states this is fixed in 6.12 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/44742138d151c3a945460ae7beff8ae45ac0bf58
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8a585d553c11965332d7a2d74e79ef92a42bfc87
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/cac075706f298948898b1f63e81709df42afa75d

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

4.7MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-362

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