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CVE-2026-63912

In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: restore combined single-frag length gate The ESP out-of-place fast path appends the trailer in esp_output_head() before esp_output_tail() allocates the destination page frag. The head-side gate currently checks skb->data_len and tailen separately, but the tail code allocates a single destination frag from the combined post-trailer skb->data_len. Reject the page-frag fast path when the combined aligned length exceed
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d0cf6c592f08b5d9bf5da30d47042e0d73054eae39ec3f031eaaf241d85aebfe
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/ipv4/esp4.c","net/ipv6/esp6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"566295735530ee513326049b0540f32ec050bf2e","status":"affected","version":"c075c3ea031757f8ea2d34567565b61a868c08d5","versionType":"git"},{"lessThan":"5d7ab86e2b6bc23054616bf6ac562013bf60af8c","status":"affected","version":"a583f2f3c8788bffd7fd7baeb76bd6d80543d7ea","versionType":"git"},{"lessThan":"36519e3d941fc99d3b52c134dbaf311f987a4708","status":"affected","version":"5bd8baab087d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv4/esp4.c","net/ipv6/esp6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv4/esp4.c","net/ipv6/esp6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"566295735530ee513326049b0540f32ec050bf2e","status":"affected","version":"c075c3ea031757f8ea2d34567565b61a868c08d5","versionType":"git"},{"lessThan":"5d7ab86e2b6bc23054616bf6ac562013bf60af8c","status":"affected","version":"a583f2f3c8788bffd7fd7baeb76bd6d80543d7ea","versionType":"git"},{"lessThan":"36519e3d941fc99d3b52c134dbaf311f987a4708","status":"affected","version":"5bd8baab087d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv4/esp4.c","net/ipv6/esp6.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/322e48187e0245ab2fff6fec2220b0cae677dbec"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/36519e3d941fc99d3b52c134dbaf311f987a4708"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/566295735530ee513326049b0540f32ec050bf2e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/5d7ab86e2b6bc23054616bf6ac562013bf60af8c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/65f3b3fc2347b89fe21db1e92c7681368415f095"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/b84091ceddc9f133229dceab3ccc930bf27f9cba"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/c093468aea8277f77272a4f199b2e15e19cabb59"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/dfa0d7b0ff1eb6b2c416b8fdb9b4f2cefba57a40"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:02622e6b7dafa03da3ef76cecc5fd824c7cdee292dc90310ee469ce6f84ff00e · sha256:f6d02c78a00b2170… · /containers/cna/references/7

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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