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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
b206d9a23ac71cb905f5fb6e0cd813406f89b678 to < 3d229600c54e9e0909080ecaf1aab0642aefa5f0affectedb206d9a23ac71cb905f5fb6e0cd813406f89b678 to < ed1a8aaa344522c0c349ac9042db27ad130ef913affectedb206d9a23ac71cb905f5fb6e0cd813406f89b678 to < 8d364597de9ce2a5f52714224bfe6c2e7a29b303affectedb206d9a23ac71cb905f5fb6e0cd813406f89b678 to < fdba6d5e455388377ec7e82a5913ddfcc7edd93baffectedb206d9a23ac71cb905f5fb6e0cd813406f89b678 to < e658f1c133b854b2ae799147301d82dddb8f3162affectedb206d9a23ac71cb905f5fb6e0cd813406f89b678 to < 54376d8d26596f98ed7432a788314bb9154bf3e3affectedb206d9a23ac71cb905f5fb6e0cd813406f89b678 to < c43ec96e8d34399bd9dab2f2dc316b904892133faffected
Linux Linux
Default version status: affected
4.2affected0 to < 4.2unaffected5.4.289 to ≤ 5.4.*unaffected5.10.233 to ≤ 5.10.*unaffected5.15.176 to ≤ 5.15.*unaffected6.1.123 to ≤ 6.1.*unaffected6.6.69 to ≤ 6.6.*unaffected6.12.8 to ≤ 6.12.*unaffected6.13 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/3d229600c54e9e0909080ecaf1aab0642aefa5f0 ↗
- https://git.kernel.org/stable/c/ed1a8aaa344522c0c349ac9042db27ad130ef913 ↗
- https://git.kernel.org/stable/c/8d364597de9ce2a5f52714224bfe6c2e7a29b303 ↗
- https://git.kernel.org/stable/c/fdba6d5e455388377ec7e82a5913ddfcc7edd93b ↗
- https://git.kernel.org/stable/c/e658f1c133b854b2ae799147301d82dddb8f3162 ↗
- https://git.kernel.org/stable/c/54376d8d26596f98ed7432a788314bb9154bf3e3 ↗
- https://git.kernel.org/stable/c/c43ec96e8d34399bd9dab2f2dc316b904892133f ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html ↗