CVE-2024-56767
Published: January 13, 2025Last modified: January 13, 2025
Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: at_xdmac: avoid null_prt_deref in at_xdmac_prep_dma_memset The at_xdmac_memset_create_desc may return NULL, which will lead to a null pointer dereference. For example, the len input is error, or the atchan->free_descs_list is empty and memory is exhausted. Therefore, add check to avoid this.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.124-r0) |
| Stream | linux-lts | Fixed (6.6.69-r0) |
References
- https://git.kernel.org/stable/c/3d229600c54e9e0909080ecaf1aab0642aefa5f0
- https://git.kernel.org/stable/c/54376d8d26596f98ed7432a788314bb9154bf3e3
- https://git.kernel.org/stable/c/8d364597de9ce2a5f52714224bfe6c2e7a29b303
- https://git.kernel.org/stable/c/c43ec96e8d34399bd9dab2f2dc316b904892133f
- https://git.kernel.org/stable/c/e658f1c133b854b2ae799147301d82dddb8f3162
- https://git.kernel.org/stable/c/ed1a8aaa344522c0c349ac9042db27ad130ef913
- https://git.kernel.org/stable/c/fdba6d5e455388377ec7e82a5913ddfcc7edd93b