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CVE-2023-53646

drm/i915/perf: add sentinel to xehp_oa_b_counters

HIGH
7.1
CVSS Score
Published: October 7, 2025 at 03:19 PM UTC
Updated: August 5, 2026 at 10:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: drm/i915/perf: add sentinel to xehp_oa_b_counters Arrays passed to reg_in_range_table should end with empty record. The patch solves KASAN detected bug with signature: BUG: KASAN: global-out-of-bounds in xehp_is_valid_b_counter_addr+0x2c7/0x350 [i915] Read of size 4 at addr ffffffffa1555d90 by task perf/1518 CPU: 4 PID: 1518 Comm: perf Tainted: G U 6.4.0-kasan_438-g3303d06107f3+ #1 Hardware name: Intel Corporation Meteor Lake Client Platform/MTL-P DDR5 SODIMM SBS RVP, BIOS MTLPFWI1.R00.3223.D80.2305311348 05/31/2023 Call Trace: <TASK> ... xehp_is_valid_b_counter_addr+0x2c7/0x350 [i915] (cherry picked from commit 2f42c5afb34b5696cf5fe79e744f99be9b218798)

Affected

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

Linux Kernel· Linux
95%
6.2 ≤ v < 6.4.76.2 ≤ v < 6.50fa9349dda030fa847b36f880a5eea25c3202b666.5 rc16.5 rc2
Vendor states this is fixed in 21d92025e80629fd5c25cd6751f8cf38c784dd4a (fixed)
Vendor states this is fixed in 785b3f667b4bf98804cad135005e964df0c750de (fixed)
Vendor states this is fixed in 6.2 (unaffected)
Vendor states this is fixed in 6.4.7 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: cverecord
https://git.kernel.org/stable/c/21d92025e80629fd5c25cd6751f8cf38c784dd4a
Patch
Source: cverecord
https://git.kernel.org/stable/c/785b3f667b4bf98804cad135005e964df0c750de

CVSS

7.1HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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