CVE-2026-43210 (GCVE-0-2026-43210)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-11 22:20
VLAI
Title
tracing: ring-buffer: Fix to check event length before using
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing: ring-buffer: Fix to check event length before using Check the event length before adding it for accessing next index in rb_read_data_buffer(). Since this function is used for validating possibly broken ring buffers, the length of the event could be broken. In that case, the new event (e + len) can point a wrong address. To avoid invalid memory access at boot, check whether the length of each event is in the possible range before using it.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7100 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5f3b6e839f3ceb8d6ef02231ba9b5aca71b8bf55 , < b4700c089a10f89de3a5149d57f8a58306458982 (git)
Affected: 5f3b6e839f3ceb8d6ef02231ba9b5aca71b8bf55 , < 5026010110a5ad2268d8c23e1e286ab7c736f7ac (git)
Affected: 5f3b6e839f3ceb8d6ef02231ba9b5aca71b8bf55 , < 9eb80e54494ef1efef8a64bec4ffa672c9cf411e (git)
Affected: 5f3b6e839f3ceb8d6ef02231ba9b5aca71b8bf55 , < 912b0ee248c529a4f45d1e7f568dc1adddbf2a4a (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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}



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