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CVE-2026-43373

In the Linux kernel, the following vulnerability has been resolved: net: ncsi: fix skb leak in error paths Early return paths in NCSI RX and AEN handlers fail to release the received skb, resulting in a memory leak. Specifically, ncsi_aen_handler() returns on invalid AEN packets without consuming the skb. Similarly, ncsi_rcv_rsp() exits early when failing to resolve the NCSI device, response handler, or request, leaving the skb unfreed.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d7626641c64dfdc03b78c4730a7854c138f16915e5f4b190714c535890fadea3
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/ncsi/ncsi-aen.c","net/ncsi/ncsi-rsp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.8"},{"lessThan":"4.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ncsi/ncsi-aen.c","net/ncsi/ncsi-rsp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9891d7f4f1ede473c54b49776ae07755083eef06","status":"affected","version":"138635cc27c9737f940c3aa80912ff7a61c825af","versionType":"git"},{"lessThan":"fef5aa6e3bcf3c8053307642663a63b7362d7552","status":"affected","version":"138635cc27c9737f940c3aa80912ff7a61c825af","versionType":"git"},{"lessThan":"81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a","status":"affected","version":"1386…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ncsi/ncsi-aen.c","net/ncsi/ncsi-rsp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.8"},{"lessThan":"4.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ncsi/ncsi-aen.c","net/ncsi/ncsi-rsp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9891d7f4f1ede473c54b49776ae07755083eef06","status":"affected","version":"138635cc27c9737f940c3aa80912ff7a61c825af","versionType":"git"},{"lessThan":"fef5aa6e3bcf3c8053307642663a63b7362d7552","status":"affected","version":"138635cc27c9737f940c3aa80912ff7a61c825af","versionType":"git"},{"lessThan":"81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a","status":"affected","version":"1386…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /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:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/553366c271479c0d571dd1bb5d1bcde4747fb82e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/59962588197863d0d746879f193905c0c6b3df49"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/5c3398a54266541610c8d0a7082e654e9ff3e259"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/87138dde2d6937b12b967f28fe598a7d59000ae4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/9891d7f4f1ede473c54b49776ae07755083eef06"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/b70c4e5e711931cdd56e6e905737b72f1e649189"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/fef5aa6e3bcf3c8053307642663a63b7362d7552"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:50e86303d5cb16a9e7334b8bb05d12533d0230a6102e1819383061077f913833 · sha256:cbc004c680d78420… · /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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