CVE-2022-49733

Katalog CVE

CVSS 4.7 · Medium EPSS 0,16%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada linux kernel. Skor CVSS 3.1 4.7 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC There is a small race window at snd_pcm_oss_sync() that is called from OSS PCM SNDCTL_DSP_SYNC ioctl; namely the function calls snd_pcm_oss_make_ready() at first, then takes the params_lock mutex for the rest. When the stream is set up again by another thread between them, it leads to inconsistency, and may result in unexpected results such as NULL dereference of OSS buffer as a fuzzer spotted recently. The fix is simply to cover snd_pcm_oss_make_ready() call into the same params_lock mutex with snd_pcm_oss_make_ready_locked() variant.

Rincian

Terbit di NVD

2 Maret 2025

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

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/4051324a6dafd7053c74c475e80b3ba10ae672b0 patch
• https://git.kernel.org/stable/c/723ac5ab2891b6c10dd6cc78ef5456af593490eb patch
• https://git.kernel.org/stable/c/8015ef9e8a0ee5cecfd0cb6805834d007ab26f86 patch
• https://git.kernel.org/stable/c/8423f0b6d513b259fdab9c9bf4aaa6188d054c2d patch
• https://git.kernel.org/stable/c/fce793a056c604b41a298317cf704dae255f1b36 patch