CVE-2022-48636

Katalog CVE

CVSS 7.8 · High EPSS 0,24%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup pointer being NULL. The pavgroup pointer is checked on the entrance of the function but without the lcu->lock being held. Therefore there is a race window between dasd_alias_get_start_dev() and _lcu_update() which sets pavgroup to NULL with the lcu->lock held. Fix by checking the pavgroup pointer with lcu->lock held.

Rincian

Terbit di NVD

28 April 2024

Terakhir diubah

4 Agustus 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,24% peluang dieksploitasi; lebih tinggi dari 13,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/2e473351400e3dd66f0b71eddcef82ee45a584c1 patch
• https://git.kernel.org/stable/c/49f401a98b318761ca2e15d4c7869a20043fbed4 patch
• https://git.kernel.org/stable/c/650a2e79d176db753654d3dde88e53a2033036ac patch
• https://git.kernel.org/stable/c/aaba5ff2742043705bc4c02fd0b2b246e2e16da1 patch
• https://git.kernel.org/stable/c/d3a67c21b18f33c79382084af556557c442f12a6 patch
• https://git.kernel.org/stable/c/d86b4267834e6d4af62e3073e48166e349ab1b70 patch
• https://git.kernel.org/stable/c/db7ba07108a48c0f95b74fabbfd5d63e924f992d patch
• https://git.kernel.org/stable/c/f5fcc9d6d71d9ff7fdbdd4b89074e6e24fffc20b patch