Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-31636

In the Linux kernel, the following vulnerability has been resolved: rxrpc: fix RESPONSE authenticator parser OOB read rxgk_verify_authenticator() copies auth_len bytes into a temporary buffer and then passes p + auth_len as the parser limit to rxgk_do_verify_authenticator(). Since p is a __be32 *, that inflates the parser end pointer by a factor of four and lets malformed RESPONSE authenticators read past the kmalloc() buffer. Decoded from the original latest-net reproduction logs with script
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e69058901bdbae6468864753498611306bbc5ed081701d9239f8bce019ecae59
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/rxrpc/rxgk.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7875f3d9777bd4e9892c4db830571ab8ac2044c0","status":"affected","version":"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a","versionType":"git"},{"lessThan":"20a188775a9a9982d1987e12660d9b44b40a6c99","status":"affected","version":"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a","versionType":"git"},{"lessThan":"3e3138007887504ee9206d0bfb5acb062c600025","status":"affected","version":"9d1d2b59341f58126a69b51f9f5f8…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b3f6e2171a2a7d2c42264e3a6d6c8934d1813a5dba4874f8f87d4ab891f0d873 · sha256:805d2f8e6e7cfbd7… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/rxrpc/rxgk.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.23","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b3f6e2171a2a7d2c42264e3a6d6c8934d1813a5dba4874f8f87d4ab891f0d873 · sha256:805d2f8e6e7cfbd7… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/rxrpc/rxgk.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7875f3d9777bd4e9892c4db830571ab8ac2044c0","status":"affected","version":"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a","versionType":"git"},{"lessThan":"20a188775a9a9982d1987e12660d9b44b40a6c99","status":"affected","version":"9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a","versionType":"git"},{"lessThan":"3e3138007887504ee9206d0bfb5acb062c600025","status":"affected","version":"9d1d2b59341f58126a69b51f9f5f8…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b3f6e2171a2a7d2c42264e3a6d6c8934d1813a5dba4874f8f87d4ab891f0d873 · sha256:805d2f8e6e7cfbd7… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/rxrpc/rxgk.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.23","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b3f6e2171a2a7d2c42264e3a6d6c8934d1813a5dba4874f8f87d4ab891f0d873 · sha256:805d2f8e6e7cfbd7… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b3f6e2171a2a7d2c42264e3a6d6c8934d1813a5dba4874f8f87d4ab891f0d873 · sha256:805d2f8e6e7cfbd7… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/20a188775a9a9982d1987e12660d9b44b40a6c99"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b3f6e2171a2a7d2c42264e3a6d6c8934d1813a5dba4874f8f87d4ab891f0d873 · sha256:805d2f8e6e7cfbd7… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/3e3138007887504ee9206d0bfb5acb062c600025"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b3f6e2171a2a7d2c42264e3a6d6c8934d1813a5dba4874f8f87d4ab891f0d873 · sha256:805d2f8e6e7cfbd7… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/7875f3d9777bd4e9892c4db830571ab8ac2044c0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b3f6e2171a2a7d2c42264e3a6d6c8934d1813a5dba4874f8f87d4ab891f0d873 · sha256:805d2f8e6e7cfbd7… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer