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CVE-2026-43029

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix soft lockup in mptcp_recvmsg() syzbot reported a soft lockup in mptcp_recvmsg() [0]. When receiving data with MSG_PEEK | MSG_WAITALL flags, the skb is not removed from the sk_receive_queue. This causes sk_wait_data() to always find available data and never perform actual waiting, leading to a soft lockup. Fix this by adding a 'last' parameter to track the last peeked skb. This allows sk_wait_data() to make informe
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:75d260bdd3220497e6eca5be8c5698629606761470da21d41df63c62850f2c9b
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":"affected","product":"Linux","programFiles":["net/mptcp/protocol.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.22","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fab07e0890445bafbd52b9e03a48c395bec7a8683d7e602cad77fb9eefd80df3 · sha256:889c415389f734b1… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mptcp/protocol.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"58b58b9ba89c43914eea90c18928e51852d10c24","status":"affected","version":"8e04ce45a8db7a080220e86e249198fa676b83dc","versionType":"git"},{"lessThan":"de3c248d1b69eaefa2d5b3da4005936dcf590f1b","status":"affected","version":"8e04ce45a8db7a080220e86e249198fa676b83dc","versionType":"git"},{"lessThan":"5dd8025a49c268ab6b94d978532af3ad341132a7","status":"affected","version":"8e04ce45a8db7a080220e86e2…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fab07e0890445bafbd52b9e03a48c395bec7a8683d7e602cad77fb9eefd80df3 · sha256:889c415389f734b1… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/mptcp/protocol.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.22","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fab07e0890445bafbd52b9e03a48c395bec7a8683d7e602cad77fb9eefd80df3 · sha256:889c415389f734b1… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mptcp/protocol.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"58b58b9ba89c43914eea90c18928e51852d10c24","status":"affected","version":"8e04ce45a8db7a080220e86e249198fa676b83dc","versionType":"git"},{"lessThan":"de3c248d1b69eaefa2d5b3da4005936dcf590f1b","status":"affected","version":"8e04ce45a8db7a080220e86e249198fa676b83dc","versionType":"git"},{"lessThan":"5dd8025a49c268ab6b94d978532af3ad341132a7","status":"affected","version":"8e04ce45a8db7a080220e86e2…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fab07e0890445bafbd52b9e03a48c395bec7a8683d7e602cad77fb9eefd80df3 · sha256:889c415389f734b1… · /containers/cna/affected/0

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:fab07e0890445bafbd52b9e03a48c395bec7a8683d7e602cad77fb9eefd80df3 · sha256:889c415389f734b1… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/58b58b9ba89c43914eea90c18928e51852d10c24"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab07e0890445bafbd52b9e03a48c395bec7a8683d7e602cad77fb9eefd80df3 · sha256:889c415389f734b1… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/5dd8025a49c268ab6b94d978532af3ad341132a7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab07e0890445bafbd52b9e03a48c395bec7a8683d7e602cad77fb9eefd80df3 · sha256:889c415389f734b1… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/de3c248d1b69eaefa2d5b3da4005936dcf590f1b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fab07e0890445bafbd52b9e03a48c395bec7a8683d7e602cad77fb9eefd80df3 · sha256:889c415389f734b1… · /containers/cna/references/1

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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