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CVE-2021-47511
MEDIUM5.5
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix negative period/buffer sizes The period size calculation in OSS layer may receive a negative value as an error, but the code there assumes only the positive values and handle them with size_t. Due to that, a too big value may be passed to the lower layers. This patch changes the code to handle with ssize_t and adds the proper error checks appropriately.
Details CVE
Score CVSS v3.15.5
SeveriteMEDIUM
Vecteur CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vecteur d'attaqueLOCAL
ComplexiteLOW
Privileges requisLOW
Interaction utilisateurNONE
Publie5/24/2024
Derniere modification9/29/2025
Sourcenvd
Observations honeypot0
Produits affectes
linux:linux_kernel
References
https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049(416baaa9-dc9f-4396-8d5f-8c081fb06d67)
https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243(af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049(af854a3a-2127-422b-91ae-364da2661108)
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