CVE-2022-48816
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: lock against ->sock changing during sysfs read ->sock can be set to NULL asynchronously unless ->recv_mutex is held.
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: lock against ->sock changing during sysfs read ->sock can be set to NULL asynchronously unless ->recv_mutex is held. So it is important to hold that mutex. Otherwise a sysfs read can trigger an oops. Commit 17f09d3f619a ("SUNRPC: Check if the xprt is connected before handling sysfs reads") appears to attempt to fix this problem, but it only narrows the race window.
- CVSS 3.1
- 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.29% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07Patch
- https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90eePatch
- https://git.kernel.org/stable/c/fdc42287ae3f8a35cc2098307f52d7864b4bc8ed
- https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07Patch
- https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90eePatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.