CVE-2023-52849 is a NULL pointer dereference vulnerability in the Linux kernel's CXL memory subsystem, specifically affecting the cxl/mem component. This flaw occurs due to an incorrect shutdown order, where the driver context (cxlds) is cleared prematurely, leading to a crash when the system attempts to dereference it during region teardown. Rated as Medium severity (CVSS 5.5), an attacker with local privileges could exploit this to cause a denial of service (system crash). There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.14.8, < 5.15CPE match | cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.14.8, < 5.15.139CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 5.16, < 6.1.63CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.2, < 6.5.12CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.6, < 6.6.2CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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