CVE-2022-50142
Description
In the Linux kernel, the following vulnerability has been resolved: intel_th: msu: Fix vmalloced buffers After commit f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP") there's a chance of DMA buffer getting allocated via vmalloc(), which messes up the mmapping code: > RIP: msc_mmap_fault [intel_th_msu] > Call Trace: > <TASK> > __do_fault > do_fault ... Fix this by accounting for vmalloc possibility.
How to fix
- linux linux_kernel5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2 or later
- git.kernel.org/stable/c/0ed72c6bc632cbf8d979ac60f982ff84b7bb610a
- git.kernel.org/stable/c/4914c50670b6a531e2cb17cd984cc565b4681312
- git.kernel.org/stable/c/566887bad7ff2297d6b3f9659c702ba075f3d62d
- git.kernel.org/stable/c/6ae2881c1d1fa0e33f4763b7c786f8ef05a9c828
- git.kernel.org/stable/c/ac12ad3ccf6d386e64a9d6a890595a2509d24edd
- git.kernel.org/stable/c/b5d924cb4c7b952eaa61622f14427723a78137a3
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.2 ≤ v < 5.4.211, 5.5 ≤ v < 5.10.137, 5.11 ≤ v < 5.15.61, 5.16 ≤ v < 5.18.18, 5.19 ≤ v < 5.19.2 | 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.