CVE-2026-43105

drm/vc4: Fix memory leak of BO array in hang state

MEDIUM
5.5
CVSS Score
Published: May 6, 2026 at 07:40 AM UTC
Updated: June 17, 2026 at 10:48 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Fix memory leak of BO array in hang state The hang state's BO array is allocated separately with kzalloc() in vc4_save_hang_state() but never freed in vc4_free_hang_state(). Add the missing kfree() for the BO array before freeing the hang state struct.

Affected

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

4.5 ≤ v < 5.10.2584.5 ≤ v < 5.15.2094.5 ≤ v < 6.1.1754.5 ≤ v < 6.12.834.5 ≤ v < 6.18.244.5 ≤ v < 6.19.144.5 ≤ v < 6.6.1364.5 ≤ v < 7.06.13 ≤ v < 6.18.246.19 ≤ v < 6.19.146.7 ≤ v < 6.12.83214613656b5179f0daab6e0a080814b5100d45f07.0 rc17.0 rc27.0 rc37.0 rc47.0 rc57.0 rc67.0 rc7
Vendor states this is fixed in 0d3c014a84396a147705f523a8fd6fc873e76502 (fixed)
Vendor states this is fixed in 421cea4f71f7cf65abaae878562ee4aa2b684628 (fixed)
Vendor states this is fixed in 686bb2fce082f043db50db02b5de5c64ca4dc4c4 (fixed)
Vendor states this is fixed in 7235fc096ece53211bd2c0e958c65f9b802aeb98 (fixed)
Vendor states this is fixed in 9c092941fc1d00933bcb46ecac1cb930db3abf5d (fixed)
Vendor states this is fixed in a812008fe3a0aebb778d277b35717f64e23d0302 (fixed)
Vendor states this is fixed in b8138567c4a80fd76a647849ebd4284996cf4b17 (fixed)
Vendor states this is fixed in f4dfd6847b3e5d24e336bca6057485116d17aea4 (fixed)
Vendor states this is fixed in 4.5 (unaffected)
Vendor states this is fixed in 5.10.258 (unaffected)
Vendor states this is fixed in 5.15.209 (unaffected)
Vendor states this is fixed in 6.1.175 (unaffected)
Vendor states this is fixed in 6.12.83 (unaffected)
Vendor states this is fixed in 6.18.24 (unaffected)
Vendor states this is fixed in 6.19.14 (unaffected)
Vendor states this is fixed in 6.6.136 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-401

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