CVE-2022-49498

ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

CVSS 5.5 MEDIUMEPSS 0.2%CWE-476

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 5.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

26 fev 2025Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Check for null pointer of pointer substream before dereferencing it Pointer substream is being dereferenced on the assignment of pointer card before substream is being null checked with the macro PCM_RUNTIME_CHECK. Although PCM_RUNTIME_CHECK calls BUG_ON, it still is useful to perform the the pointer check before card is assigned.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Produtos afetados

Linux · Linux

Referências

https://git.kernel.org/stable/c/011b559be832194f992f73d6c0d5485f5925a10b https://git.kernel.org/stable/c/1f2e28857be1e5c7db39bbc221332215fc5467e3 https://git.kernel.org/stable/c/7784d22f81a29df2ec57ca90d54f93a35cbcd1a2 https://git.kernel.org/stable/c/b2421a196cb0911ea95aec1050a0b830464c8fa6 https://git.kernel.org/stable/c/b41ef7ad9238c22aa2e142f5ce4ce1a1a0d48123 https://git.kernel.org/stable/c/f2c68c52898f623fe84518da4606538d193b0cca