High · published July 25, 2026
In the Linux kernel, the following vulnerability has been resolved:
crypto: pcrypt - restore callback for non-parallel fallback
pcrypt installs pcrypt_aead_done() on the child AEAD request before
trying to submit it through padata. If padata_do_parallel() returns
-EBUSY, pcrypt falls back to calling the child AEAD directly.
That fallback must not keep the padata completion callback. Otherwise
an asynchronous completion runs pcrypt_aead_done() even though the
request was never enrolled in padata.
Restore the original request callback and callback data before calling
the child AEAD directly. This keeps the fallback path aligned with a
direct AEAD request while leaving the parallel path unchanged.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 4.19.325, < 4.20 | 4.20 |
| linux/linux_kernel | ≥ 5.4.287, < 5.5 | 5.5 |
| linux/linux_kernel | ≥ 5.10.231, < 5.10.261 | 5.10.261 |
| linux/linux_kernel | ≥ 5.15.174, < 5.15.212 | 5.15.212 |
| linux/linux_kernel | ≥ 6.1.120, < 6.1.178 | 6.1.178 |
| linux/linux_kernel | ≥ 6.6.64, < 6.6.145 | 6.6.145 |
| linux/linux_kernel | ≥ 6.11.11, < 6.12 | 6.12 |
| linux/linux_kernel | ≥ 6.12.2, < 6.12.96 | 6.12.96 |
| linux/linux_kernel | ≥ 6.13, < 6.18.39 | 6.18.39 |
| linux/linux_kernel | ≥ 6.19, < 7.1.4 | 7.1.4 |