CVE-2022-50382padata: Always leave BHs disabled when running ->parallel()
- 5.5MediumCVSS base score
- 0.12%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: padata: Always leave BHs disabled when running ->parallel() A deadlock can happen when an overloaded system runs ->parallel() in the context of the current task: padata_do_parallel ->parallel() pcrypt_aead_enc/dec padata_do_serial spin_lock(&reorder->lock) // BHs still enabled <interrupt> ... __do_softirq ... padata_do_serial spin_lock(&reorder->lock) It's a bug for BHs to be on in _do_serial as Steffen points out, so ensure they're off in the "current task" case like they are in padata_parallel_worker to avoid this situation.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 8 months later
· 8 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.12% · top 98% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 4611ce22468895acd61fee9ac1da810d60617d9a – < 8e0681dd4eee029eb1d533d06993f7cb091efb73
- affected 4611ce22468895acd61fee9ac1da810d60617d9a – < 17afa98bccec4f52203508b3f49b5f948c6fd6ac
- affected 4611ce22468895acd61fee9ac1da810d60617d9a – < 7337adb20fcc0aebb50eaff2bc5a8dd9a7c6743d
- affected 4611ce22468895acd61fee9ac1da810d60617d9a – < 6cfa9e60c0f88fdec6368e081ab968411cc706b1
- affected 4611ce22468895acd61fee9ac1da810d60617d9a – < 34c3a47d20ae55b3600fed733bf96eafe9c500d5
- affected 5.8
- unaffected < 5.8
- unaffected 5.10.163 – ≤ 5.10.*
- unaffected 5.15.86 – ≤ 5.15.*
- unaffected 6.0.16 – ≤ 6.0.*
- unaffected 6.1.2 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References
References5
- https://git.kernel.org/stable/c/8e0681dd4eee029eb1d533d06993f7cb091efb73 (opens in a new tab)
- https://git.kernel.org/stable/c/17afa98bccec4f52203508b3f49b5f948c6fd6ac (opens in a new tab)
- https://git.kernel.org/stable/c/7337adb20fcc0aebb50eaff2bc5a8dd9a7c6743d (opens in a new tab)
- https://git.kernel.org/stable/c/6cfa9e60c0f88fdec6368e081ab968411cc706b1 (opens in a new tab)
- https://git.kernel.org/stable/c/34c3a47d20ae55b3600fed733bf96eafe9c500d5 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-29986 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-50382)Record last updated .