CVE-2024-38580

Katalog CVE

CVSS 4.7 · Medium EPSS 0,24%

Kerentanan pada linux kernel. Skor CVSS 3.1 4.7 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: epoll: be better about file lifetimes epoll can call out to vfs_poll() with a file pointer that may race with the last 'fput()'. That would make f_count go down to zero, and while the ep->mtx locking means that the resulting file pointer tear-down will be blocked until the poll returns, it means that f_count is already dead, and any use of it won't actually get a reference to the file any more: it's dead regardless. Make sure we have a valid ref on the file pointer before we call down to vfs_poll() from the epoll routines.

Rincian

Terbit di NVD

19 Juni 2024

Terakhir diubah

4 Agustus 2026

Status NVD

Modified

CVSS 3.1

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

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/16e3182f6322575eb7c12e728ad3c7986a189d5d patch
• https://git.kernel.org/stable/c/4efaa5acf0a1d2b5947f98abb3acf8bfd966422b patch
• https://git.kernel.org/stable/c/4f65f4defe4e23659275ce5153541cd4f76ce2d2 patch
• https://git.kernel.org/stable/c/559214eb4e5c3d05e69428af2fae2691ba1eb784 patch
• https://git.kernel.org/stable/c/cbfd1088e24ec4c1199756a37cb8e4cd0a4b016e patch