CVE-2022-50142
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Analyzed
Affected
- Linux Kernel < 5.4.211
- Linux Kernel < 5.10.137
- Linux Kernel < 5.15.61
- Linux Kernel < 5.18.18
- Linux Kernel < 5.19.2
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-50142.md and follow it. Check whether this project is affected by CVE-2022-50142. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0ed72c6bc632cbf8d979ac60f982ff84b7bb610a
- https://git.kernel.org/stable/c/4914c50670b6a531e2cb17cd984cc565b4681312
- https://git.kernel.org/stable/c/566887bad7ff2297d6b3f9659c702ba075f3d62d
- https://git.kernel.org/stable/c/6ae2881c1d1fa0e33f4763b7c786f8ef05a9c828
- https://git.kernel.org/stable/c/ac12ad3ccf6d386e64a9d6a890595a2509d24edd
- https://git.kernel.org/stable/c/b5d924cb4c7b952eaa61622f14427723a78137a3
References
- https://git.kernel.org/stable/c/0ed72c6bc632cbf8d979ac60f982ff84b7bb610a
- https://git.kernel.org/stable/c/4914c50670b6a531e2cb17cd984cc565b4681312
- https://git.kernel.org/stable/c/566887bad7ff2297d6b3f9659c702ba075f3d62d
- https://git.kernel.org/stable/c/6ae2881c1d1fa0e33f4763b7c786f8ef05a9c828
- https://git.kernel.org/stable/c/ac12ad3ccf6d386e64a9d6a890595a2509d24edd
- https://git.kernel.org/stable/c/b5d924cb4c7b952eaa61622f14427723a78137a3