CVE-2024-26943

Katalog CVE

CVSS 5.5 · Medium EPSS 0,22%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: nouveau/dmem: handle kcalloc() allocation failure The kcalloc() in nouveau_dmem_evict_chunk() will return null if the physical memory has run out. As a result, if we dereference src_pfns, dst_pfns or dma_addrs, the null pointer dereference bugs will happen. Moreover, the GPU is going away. If the kcalloc() fails, we could not evict all pages mapping a chunk. So this patch adds a __GFP_NOFAIL flag in kcalloc(). Finally, as there is no need to have physically contiguous memory, this patch switches kcalloc() to kvcalloc() in order to avoid failing allocations.

Rincian

Terbit di NVD

1 Mei 2024

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,22% peluang dieksploitasi; lebih tinggi dari 12,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b mailing list · patch
• https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d mailing list · patch
• https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee mailing list · patch
• https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2 mailing list · patch
• https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2 mailing list · patch