CVE-2021-47511
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < be8869d388593e57223ad39297c8e54be632f2f2 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 502e1146873d870f87da3b8f93d6bf2de5f38d0c | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8af815ab052eaf74addbbfb556d63ce2137c0e1b | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f96c0959c1ee92adc911c10d6ec209af50105049 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f12c8a7515f641885677960af450082569a87243 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 02b2b691b77cd7b951fa7b6c9d44d4e472cdc823 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9d2479c960875ca1239bcb899f386970c13d9cfe | affected |
| Linux | Linux | 2.6.12 | affected |
| Linux | Linux | 0 < 2.6.12 | unaffected |
| Linux | Linux | 4.4.295 <= 4.4.* | unaffected |
| Linux | Linux | 4.9.293 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.258 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.221 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.165 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.85 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.8 <= 5.15.* | unaffected |
| Linux | Linux | 5.16 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2
- https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c
- https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b
- https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049
- https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243
- https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823
- https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc
- https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe
References
- https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2
- https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c
- https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b
- https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049
- https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243
- https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823
- https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc
- https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe
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