CVE-2026-98057
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Add checking nr_subbufs to persistent ring buffer validation Sashiko reported that the code was using meta->nr_subbufs without making sure that it matched the nr_pages + 1 on data that was assuming the two were the same. Add a check to the persistent ring buffer validation code to make sure that the saved nr_subbufs matches what we expect.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedSep 25, 2026
First seenSep 25, 2026
How to fix
Update
- Linux Linuxf0467190e6a9fc61e343c8064ef16aad513788c3, 364a31052aa9ef91db137f82d797366007cd85b7, 69d502457e3f76142f7fcf6e2625e80e0ce8a60f, 6c001a62c34f13fe1c6a24304c289b387d9e697d, 6.12.111, 6.14 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 3ec743d558f111d8999aea24577ba66c65ee2eeb ≤ v < f0467190e6a9fc61e343c8064ef16aad513788c3, f5b95f1fa2ef3a03f49eeec658ba97e721412b32 ≤ v < 364a31052aa9ef91db137f82d797366007cd85b7, f5b95f1fa2ef3a03f49eeec658ba97e721412b32 ≤ v < 69d502457e3f76142f7fcf6e2625e80e0ce8a60f, f5b95f1fa2ef3a03f49eeec658ba97e721412b32 ≤ v < 6c001a62c34f13fe1c6a24304c289b387d9e697d, 0d547a6f5e8fad26ebc12f501d7d19fccdbad6bf, 6.12.16 ≤ v < 6.12.111, 6.13.4 ≤ v < 6.14, 6.14 | f0467190e6a9fc61e343c8064ef16aad513788c3, 364a31052aa9ef91db137f82d797366007cd85b7, 69d502457e3f76142f7fcf6e2625e80e0ce8a60f, 6c001a62c34f13fe1c6a24304c289b387d9e697d, 6.12.111, 6.14 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.