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CVE-2026-31640

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix use of wrong skb when comparing queued RESP challenge serial In rxrpc_post_response(), the code should be comparing the challenge serial number from the cached response before deciding to switch to a newer response, but looks at the newer packet private data instead, rendering the comparison always false. Fix this by switching to look at the older packet. Fix further[1] to substitute the new packet in place of the
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c512e258416fd82994acb2229d0b9e7ce50189d319f986d5bf5fa94dc2bbd6a3
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":["include/trace/events/rxrpc.h","net/rxrpc/conn_event.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9132b1a7bf83b4a8042fffbc99d075b727a16742","status":"affected","version":"5800b1cf3fd8ccab752a101865be1e76dac33142","versionType":"git"},{"lessThan":"20386e7f8d97475b8d815873e246423317ec4260","status":"affected","version":"5800b1cf3fd8ccab752a101865be1e76dac33142","versionType":"git"},{"lessThan":"b33f5741bb187db8ff32e8f5b96def77cc94dfca","status":"affected","ve…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ff17c47fef4251795ac5a83a5d14007050935f4f2750e01322b8665905c2cd68 · sha256:8e459753150f6037… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["include/trace/events/rxrpc.h","net/rxrpc/conn_event.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","versionTyp…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ff17c47fef4251795ac5a83a5d14007050935f4f2750e01322b8665905c2cd68 · sha256:8e459753150f6037… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/trace/events/rxrpc.h","net/rxrpc/conn_event.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9132b1a7bf83b4a8042fffbc99d075b727a16742","status":"affected","version":"5800b1cf3fd8ccab752a101865be1e76dac33142","versionType":"git"},{"lessThan":"20386e7f8d97475b8d815873e246423317ec4260","status":"affected","version":"5800b1cf3fd8ccab752a101865be1e76dac33142","versionType":"git"},{"lessThan":"b33f5741bb187db8ff32e8f5b96def77cc94dfca","status":"affected","ve…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ff17c47fef4251795ac5a83a5d14007050935f4f2750e01322b8665905c2cd68 · sha256:8e459753150f6037… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["include/trace/events/rxrpc.h","net/rxrpc/conn_event.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","versionTyp…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ff17c47fef4251795ac5a83a5d14007050935f4f2750e01322b8665905c2cd68 · sha256:8e459753150f6037… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ff17c47fef4251795ac5a83a5d14007050935f4f2750e01322b8665905c2cd68 · sha256:8e459753150f6037… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/20386e7f8d97475b8d815873e246423317ec4260"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ff17c47fef4251795ac5a83a5d14007050935f4f2750e01322b8665905c2cd68 · sha256:8e459753150f6037… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/9132b1a7bf83b4a8042fffbc99d075b727a16742"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ff17c47fef4251795ac5a83a5d14007050935f4f2750e01322b8665905c2cd68 · sha256:8e459753150f6037… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/b33f5741bb187db8ff32e8f5b96def77cc94dfca"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ff17c47fef4251795ac5a83a5d14007050935f4f2750e01322b8665905c2cd68 · sha256:8e459753150f6037… · /containers/cna/references/2

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.

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