4.7

CVE-2022-48816

SUNRPC: lock against ->sock changing during sysfs read

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.10.67 < 5.11
Linux ≫ Linux Kernel Version >= 5.13.19 < 5.16.10
Linux ≫ Linux Kernel Version 5.17 Update rc1
Linux ≫ Linux Kernel Version 5.17 Update rc2
Linux ≫ Linux Kernel Version 5.17 Update rc3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.29% 0.207
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/9482ab4540f5bcc869b44c067ae99b5fca16bd07
Patch
https://git.kernel.org/stable/c/b49ea673e119f59c71645e2f65b3ccad857c90ee
Patch
https://git.kernel.org/stable/c/fdc42287ae3f8a35cc2098307f52d7864b4bc8ed
https://git.kernel.org/stable/c/cd366b9091a3e6ed8229e4b908e895d20b527dc0