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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98057

ring-buffer: Add checking nr_subbufs to persistent ring buffer validation

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 3ec743d558f111d8999aea24577ba66c65ee2eeb to < f0467190e6a9fc61e343c8064ef16aad513788c3affected
  • f5b95f1fa2ef3a03f49eeec658ba97e721412b32 to < 364a31052aa9ef91db137f82d797366007cd85b7affected
  • f5b95f1fa2ef3a03f49eeec658ba97e721412b32 to < 69d502457e3f76142f7fcf6e2625e80e0ce8a60faffected
  • f5b95f1fa2ef3a03f49eeec658ba97e721412b32 to < 6c001a62c34f13fe1c6a24304c289b387d9e697daffected
  • 0d547a6f5e8fad26ebc12f501d7d19fccdbad6bfaffected
  • 6.12.16 to < 6.12.111affected
  • 6.13.4 to < 6.14affected

Linux Linux

Default version status: affected

  • 6.14affected
  • 0 to < 6.14unaffected
  • 6.12.111 to ≤ 6.12.*unaffected
  • 6.18.57 to ≤ 6.18.*unaffected
  • 7.2.7 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References