Description
A use-after-free flaw was found in the Linux kernel’s SGI GRU driver in the way the first gru_file_unlocked_ioctl function is called by the user, where a fail pass occurs in the gru_check_chiplet_assignment function. This flaw allows a local user to crash or potentially escalate their privileges on the system.
References (7)
Core 7
Core References
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
Issue Tracking, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2132640
Third Party Advisory
https://security.netapp.com/advisory/ntap-20230406-0005/
Mailing List, Patch
https://www.spinics.net/lists/kernel/msg4518970.html
Scores
CVSS v3
7.8
EPSS
0.0002
EPSS Percentile
6.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-416
Status
published
Products (2)
linux/linux_kernel
2.6.33 - 4.9.337
redhat/enterprise_linux
9.0
Published
Mar 06, 2023
Tracked Since
Feb 18, 2026