CVE-2026-22991

Katalog CVE

CVSS 5.5 · Medium EPSS 0,44%

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: libceph: make free_choose_arg_map() resilient to partial allocation free_choose_arg_map() may dereference a NULL pointer if its caller fails after a partial allocation. For example, in decode_choose_args(), if allocation of arg_map->args fails, execution jumps to the fail label and free_choose_arg_map() is called. Since arg_map->size is updated to a non-zero value before memory allocation, free_choose_arg_map() will iterate over arg_map->args and dereference a NULL pointer. To prevent this potential NULL pointer dereference and make free_choose_arg_map() more resilient, add checks for pointers before iterating.

Rincian

Terbit di NVD

23 Januari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Modified

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)

0,44% peluang dieksploitasi; lebih tinggi dari 36,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/8081faaf089db5280c3be820948469f7c58ef8dd patch
• https://git.kernel.org/stable/c/851241d3f78a5505224dc21c03d8692f530256b4 patch
• https://git.kernel.org/stable/c/9b3730dabcf3764bfe3ff07caf55e641a0b45234 patch
• https://git.kernel.org/stable/c/c4c2152a858c0ce4d2bff6ca8c1d5b0ef9f2cbdf patch
• https://git.kernel.org/stable/c/e3fe30e57649c551757a02e1cad073c47e1e075e patch
• https://git.kernel.org/stable/c/ec1850f663da64842614c86b20fe734be070c2ba patch
• https://git.kernel.org/stable/c/f21c3fdb96833aac2f533506899fe38c19cf49d5 patch