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CVE-2026-52936

In the Linux kernel, the following vulnerability has been resolved: crypto: jitterentropy - replace long-held spinlock with mutex jent_kcapi_random() serializes the shared jitterentropy state, but it currently holds a spinlock across the jent_read_entropy() call. That path performs expensive jitter collection and SHA3 conditioning, so parallel readers can trigger stalls as contending waiters spin for the same lock. To prevent non-preemptible lock hold, replace rng->jent_lock with a mutex so c
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6dfc1fa17693fb058448176bab5e9913e8e7e2c6b04aab26376e91621d5a4315
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":["crypto/jitterentropy-kcapi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"18216b8ab6904753eaf31baf453cb02ecd202ba4","status":"affected","version":"bb5530e4082446aac3a3d69780cd4dbfa4520013","versionType":"git"},{"lessThan":"4c03e6eb98443dc4d6d422a9780034a5b75376b4","status":"affected","version":"bb5530e4082446aac3a3d69780cd4dbfa4520013","versionType":"git"},{"lessThan":"ff734dbd9e2432601a6dcd167cfb0bf8a36d1880","status":"affected","version":"bb5530e4082446aac…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:59184e7d1590b6f2628b2f685fcde515310b3b36dcf890c1190e25f90a831f59 · sha256:5f0cacc98fea9960… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["crypto/jitterentropy-kcapi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.2"},{"lessThan":"4.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"less…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:59184e7d1590b6f2628b2f685fcde515310b3b36dcf890c1190e25f90a831f59 · sha256:5f0cacc98fea9960… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["crypto/jitterentropy-kcapi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"18216b8ab6904753eaf31baf453cb02ecd202ba4","status":"affected","version":"bb5530e4082446aac3a3d69780cd4dbfa4520013","versionType":"git"},{"lessThan":"4c03e6eb98443dc4d6d422a9780034a5b75376b4","status":"affected","version":"bb5530e4082446aac3a3d69780cd4dbfa4520013","versionType":"git"},{"lessThan":"ff734dbd9e2432601a6dcd167cfb0bf8a36d1880","status":"affected","version":"bb5530e4082446aac…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:59184e7d1590b6f2628b2f685fcde515310b3b36dcf890c1190e25f90a831f59 · sha256:5f0cacc98fea9960… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["crypto/jitterentropy-kcapi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.2"},{"lessThan":"4.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"less…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:59184e7d1590b6f2628b2f685fcde515310b3b36dcf890c1190e25f90a831f59 · sha256:5f0cacc98fea9960… · /containers/cna/affected/1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/01d798e9feb30212952d4e992801ba6bd6a82351"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:59184e7d1590b6f2628b2f685fcde515310b3b36dcf890c1190e25f90a831f59 · sha256:5f0cacc98fea9960… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/18216b8ab6904753eaf31baf453cb02ecd202ba4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:59184e7d1590b6f2628b2f685fcde515310b3b36dcf890c1190e25f90a831f59 · sha256:5f0cacc98fea9960… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/4c03e6eb98443dc4d6d422a9780034a5b75376b4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:59184e7d1590b6f2628b2f685fcde515310b3b36dcf890c1190e25f90a831f59 · sha256:5f0cacc98fea9960… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/ec427dc5286da1ed08f2d510e2147a7581b0cb02"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:59184e7d1590b6f2628b2f685fcde515310b3b36dcf890c1190e25f90a831f59 · sha256:5f0cacc98fea9960… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/ff734dbd9e2432601a6dcd167cfb0bf8a36d1880"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:59184e7d1590b6f2628b2f685fcde515310b3b36dcf890c1190e25f90a831f59 · sha256:5f0cacc98fea9960… · /containers/cna/references/2

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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