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CVE-2026-63824

In the Linux kernel, the following vulnerability has been resolved: KEYS: fix overflow in keyctl_pkey_params_get_2() The length for the internal output buffer is calculated incorrectly, which can result overflow when a too small buffer is provided. Fix the bug by allocating internal output with the size of the maximum length of the cryptographic primitive instead of caller provided size.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5dfcb59a0acf28730eb8424ca1cf0328e2c8776a9e7f01d13b81afd9f10f2d4e
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":["security/keys/keyctl_pkey.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"622ec2dcd59f21623f2a7ab773c80ceb7d555e3a","status":"affected","version":"00d60fd3b93219ea854220f0fd264b86398cbc53","versionType":"git"},{"lessThan":"b1e247338bc71826a2d2def3e0874c34749df69a","status":"affected","version":"00d60fd3b93219ea854220f0fd264b86398cbc53","versionType":"git"},{"lessThan":"0f3058d7d26f81df9b68a18ddbe164bdc3c5eff3","status":"affected","version":"00d60fd3b93219ea85…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["security/keys/keyctl_pkey.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"l…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["security/keys/keyctl_pkey.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"622ec2dcd59f21623f2a7ab773c80ceb7d555e3a","status":"affected","version":"00d60fd3b93219ea854220f0fd264b86398cbc53","versionType":"git"},{"lessThan":"b1e247338bc71826a2d2def3e0874c34749df69a","status":"affected","version":"00d60fd3b93219ea854220f0fd264b86398cbc53","versionType":"git"},{"lessThan":"0f3058d7d26f81df9b68a18ddbe164bdc3c5eff3","status":"affected","version":"00d60fd3b93219ea85…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["security/keys/keyctl_pkey.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.260","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.211","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"l…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/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:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/0f3058d7d26f81df9b68a18ddbe164bdc3c5eff3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/5165f1cc727f1322456735df212d8e26ec237a8d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/5966e4e2ba213ab7ad559166152eb4f1f170dd2c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/622ec2dcd59f21623f2a7ab773c80ceb7d555e3a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/670fc6a311ed321522b7fff92cf0fc376b4f6e78"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/b11c1fa32667692a2c0566e10163758e786e430c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/b1e247338bc71826a2d2def3e0874c34749df69a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/cb481e59ea6cae3b7796ac1d7a22b6b24c3f3c0b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:64c9a75e15903de8c97cd890c08526c5281f1b1d1ddbcdd25eca68606f68f2a4 · sha256:a8555443ba44297f… · /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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