PT-2025-25886 · Linux+4 · Linux Kernel+4
Published
2022-08-29
·
Updated
2025-07-28
·
CVE-2022-49960
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.17.0-rc1
Description
A null pointer dereference issue has been identified in the Linux kernel, specifically in the
tgl get bw info() function in drivers/gpu/drm/i915/display/intel bw.c. This issue causes a kernel panic and can lead to a crash during boot on affected devices, such as the Asus Chromebook CX550. The root cause is a null pointer dereference of bi next. Technical details about the issue include a null pointer dereference at address 000000000000002e and a call trace that includes functions like intel bw init hw() and i915 driver hw probe().Recommendations
For Linux kernel version 5.17.0-rc1, consider updating to a newer version to resolve the null pointer dereference issue.
As a temporary workaround, consider disabling the
tgl get bw info() function until a patch is available.
Restrict access to the vulnerable module drivers/gpu/drm/i915/display/intel bw.c to minimize the risk of exploitation.Exploit
Fix
Improper Resource Release
NULL Pointer Dereference
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Related Identifiers
Affected Products
Astra Linux
Centos
Linux Kernel
Red Hat
Suse