Tracker / CVE-2022-50382
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 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.
Prodotti e versioni affette
| linux | linux_kernel · 5.11 → 5.15.86 |
|---|---|
| linux | linux_kernel · 5.16 → 6.0.16 |
| linux | linux_kernel · 5.8 → 5.10.163 |
| linux | linux_kernel · 6.1 → 6.1.2 |