CVE-2022-50382
published 2025-09-18CVE-2022-50382: In the Linux kernel, the following vulnerability has been resolved: padata: Always leave BHs disabled when running ->parallel() A deadlock can happen when an…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.11%
1.5th percentile
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
...
__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.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.4-1 (bookworm) | linux 6.1.4-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 4611ce22468895acd61fee9ac1da810d60617d9a < 8e0681dd4eee029eb1d533d06993f7cb091efb73 | 8e0681dd4eee029eb1d533d06993f7cb091efb73 |
| linux | linux | >= 4611ce22468895acd61fee9ac1da810d60617d9a < 17afa98bccec4f52203508b3f49b5f948c6fd6ac | 17afa98bccec4f52203508b3f49b5f948c6fd6ac |
| linux | linux | >= 4611ce22468895acd61fee9ac1da810d60617d9a < 7337adb20fcc0aebb50eaff2bc5a8dd9a7c6743d | 7337adb20fcc0aebb50eaff2bc5a8dd9a7c6743d |
| linux | linux | >= 4611ce22468895acd61fee9ac1da810d60617d9a < 6cfa9e60c0f88fdec6368e081ab968411cc706b1 | 6cfa9e60c0f88fdec6368e081ab968411cc706b1 |
| linux | linux | >= 4611ce22468895acd61fee9ac1da810d60617d9a < 34c3a47d20ae55b3600fed733bf96eafe9c500d5 | 34c3a47d20ae55b3600fed733bf96eafe9c500d5 |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 5.11 < 5.15.86 | 5.15.86 |
| linux | linux_kernel | >= 5.16 < 6.0.16 | 6.0.16 |
| linux | linux_kernel | >= 5.8 < 5.10.163 | 5.10.163 |
| linux | linux_kernel | >= 6.1 < 6.1.2 | 6.1.2 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-hffq-87g8-8r3x: In the Linux kernel, the following vulnerability has been resolved:
padata: Always leave BHs disabled when running ->parallel()
A deadlock can happe
ghsa_unreviewed·2025-09-18
CVE-2022-50382 [MEDIUM] CWE-667 GHSA-hffq-87g8-8r3x: In the Linux kernel, the following vulnerability has been resolved:
padata: Always leave BHs disabled when running ->parallel()
A deadlock can happe
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
...
__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.
OSV
CVE-2022-50382: In the Linux kernel, the following vulnerability has been resolved: padata: Always leave BHs disabled when running ->parallel() A deadlock can happen
osv·2025-09-18·CVSS 5.5
CVE-2022-50382 [MEDIUM] CVE-2022-50382: In the Linux kernel, the following vulnerability has been resolved: padata: Always leave BHs disabled when running ->parallel() A deadlock can happen
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 ... __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.
Red Hat
kernel: padata: Always leave BHs disabled when running ->parallel()
vendor_redhat·2025-09-18·CVSS 5.5
CVE-2022-50382 [MEDIUM] CWE-833 kernel: padata: Always leave BHs disabled when running ->parallel()
kernel: padata: Always leave BHs disabled when running ->parallel()
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
...
__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.
Statement: A deadlock could occur in the Linux kernel’s padata subsystem when ->parallel() was executed in the context of the current task w
Debian
CVE-2022-50382: linux - In the Linux kernel, the following vulnerability has been resolved: padata: Alw...
vendor_debian·2022·CVSS 5.5
CVE-2022-50382 [MEDIUM] CVE-2022-50382: linux - In the Linux kernel, the following vulnerability has been resolved: padata: Alw...
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 ... __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.
Scope: local
bookworm: resolved (fixed in 6.1.4-1)
bullseye: resolved (fixed in 5.10.178-1)
forky: resolved (fixed in 6.1.4-1)
sid: resolved (fixed in 6.1.4-1)
trixie: resolved (fixed in 6.1.4-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/17afa98bccec4f52203508b3f49b5f948c6fd6achttps://git.kernel.org/stable/c/34c3a47d20ae55b3600fed733bf96eafe9c500d5https://git.kernel.org/stable/c/6cfa9e60c0f88fdec6368e081ab968411cc706b1https://git.kernel.org/stable/c/7337adb20fcc0aebb50eaff2bc5a8dd9a7c6743dhttps://git.kernel.org/stable/c/8e0681dd4eee029eb1d533d06993f7cb091efb73
2025-09-18
Published