CVE-2024-56767
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.
Does this matter?
Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.22% probability · 12th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/3d229600c54e9e0909080ecaf1aab0642aefa5f0
- https://git.kernel.org/stable/c/54376d8d26596f98ed7432a788314bb9154bf3e3Patch
- https://git.kernel.org/stable/c/8d364597de9ce2a5f52714224bfe6c2e7a29b303
- https://git.kernel.org/stable/c/c43ec96e8d34399bd9dab2f2dc316b904892133fPatch
- https://git.kernel.org/stable/c/e658f1c133b854b2ae799147301d82dddb8f3162Patch
- https://git.kernel.org/stable/c/ed1a8aaa344522c0c349ac9042db27ad130ef913
- https://git.kernel.org/stable/c/fdba6d5e455388377ec7e82a5913ddfcc7edd93bPatch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.