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CVE-2023-53646

drm/i915/perf: add sentinel to xehp_oa_b_counters

High7.8EPSS 0.20%
Published
Updated
Reserved
Assigned by
Linux

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)

Timeline

  1. ID reserved

    By Linux

  2. Published

  3. · 10 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-53646, by who scored it
Scored byCVSSScoreVector
LinuxCNA (assigner)3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Modified3.1High7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS (exploitation in 30 days)
0.20% · top 90% of all CVEs (7 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.

Weakness

Affected products

  • Linux · Linux

    • affected 0fa9349dda030fa847b36f880a5eea25c3202b66 – < 21d92025e80629fd5c25cd6751f8cf38c784dd4a
    • affected 0fa9349dda030fa847b36f880a5eea25c3202b66 – < 785b3f667b4bf98804cad135005e964df0c750de

  • Linux · Linux

    • affected 6.2
    • unaffected < 6.2
    • unaffected 6.4.7 – ≤ 6.4.*
    • unaffected 6.5 – ≤ *

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .