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CVE-2026-43493

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Fix handling of MAY_BACKLOG requests MAY_BACKLOG requests can return EBUSY. Handle them by checking for that value and filtering out EINPROGRESS notifications.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:054c34e9d9e1edc2d96499aaf98ce9727be02dd61a26c2086573032fd48c4e7e
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":["crypto/pcrypt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.34"},{"lessThan":"2.6.34","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanO…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["crypto/pcrypt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ae7e95638d956d556d74b9abb9e780d3bd3dcd9e","status":"affected","version":"5a1436beec5744029f3ac90b6fe71a698dcd6155","versionType":"git"},{"lessThan":"1d7f07df450bac3301938fbc4251f2611be4084e","status":"affected","version":"5a1436beec5744029f3ac90b6fe71a698dcd6155","versionType":"git"},{"lessThan":"76641449b28979ebd6c02e9598367e119e385236","status":"affected","version":"5a1436beec5744029f3ac90b6fe71a…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["crypto/pcrypt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.34"},{"lessThan":"2.6.34","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanO…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["crypto/pcrypt.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ae7e95638d956d556d74b9abb9e780d3bd3dcd9e","status":"affected","version":"5a1436beec5744029f3ac90b6fe71a698dcd6155","versionType":"git"},{"lessThan":"1d7f07df450bac3301938fbc4251f2611be4084e","status":"affected","version":"5a1436beec5744029f3ac90b6fe71a698dcd6155","versionType":"git"},{"lessThan":"76641449b28979ebd6c02e9598367e119e385236","status":"affected","version":"5a1436beec5744029f3ac90b6fe71a…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/affected/0

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:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1d7f07df450bac3301938fbc4251f2611be4084e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/76641449b28979ebd6c02e9598367e119e385236"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/77d55bc8675ee851ed639dc9be77325a8024cf67"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/915b692e6cb723aac658c25eb82c58fd81235110"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/9f1cbca178c03188e201ed175251372149bb25f2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/ae7e95638d956d556d74b9abb9e780d3bd3dcd9e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/eb34e243df57e32f4c08fa191f3602ea19076276"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2755fd8f221e6cf401c6f094118b7d8ccd928b2d59796cdaa52cd97a7a4f2b4d · sha256:032c69ca914e3a33… · /containers/cna/references/4

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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