In the Linux kernel, the following vulnerability has been resolved:
Drivers: vmbus: Check for channel allocation before looking up relids
relid2channel() assumes vmbus channel array to be allocated when called.
However, in cases such as kdump/kexec, not all relids will be reset by the host.
When the second kernel boots and if the guest receives a vmbus interrupt during
vmbus driver initialization before vmbus_connect() is called, before it finishes,
or if it fails, the vmbus interrupt service routine is called which in turn calls
relid2channel() and can cause a null pointer dereference.
Print a warning and error out in relid2channel() for a channel id that's invalid
in the second kernel.
References
Configurations
Configuration 1 (hide)
|
History
03 Dec 2025, 16:54
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:6.3:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.3:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:* |
|
| CWE | CWE-476 | |
| References | () https://git.kernel.org/stable/c/176c6b4889195fbe7016d9401175b48c5c9edf68 - Patch | |
| References | () https://git.kernel.org/stable/c/1eb65c8687316c65140b48fad27133d583178e15 - Patch | |
| References | () https://git.kernel.org/stable/c/8c3f0ae5435fd20bb1e3a8308488aa6ac33151ee - Patch | |
| References | () https://git.kernel.org/stable/c/a5c44f3446a0565139b7d8abc78f58b86c398123 - Patch | |
| References | () https://git.kernel.org/stable/c/c373e49fbb87aa177819866ed9194ebc5414dfd6 - Patch |
Information
Published : 2025-09-16 08:15
Updated : 2025-12-03 16:54
NVD link : CVE-2023-53273
Mitre link : CVE-2023-53273
CVE.ORG link : CVE-2023-53273
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference