CVE-2026-63824
HIGH
7.8
CVSS 3.1
Description
In the Linux kernel, the following vulnerability has been resolved:
KEYS: fix overflow in keyctl_pkey_params_get_2()
The length for the internal output buffer is calculated incorrectly, which
can result overflow when a too small buffer is provided.
Fix the bug by allocating internal output with the size of the maximum
length of the cryptographic primitive instead of caller provided size.
Metadata
Severity & Metrics
7.8
HIGH CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 00d60fd3b93219ea854220f0fd264b86398cbc53 < 622ec2dcd59f21623f2a7ab773c80ceb7d555e3a, 00d60fd3b93219ea854220f0fd264b86398cbc53 < b1e247338bc71826a2d2def3e0874c34749df69a, 00d60fd3b93219ea854220f0fd264b86398cbc53 < 0f3058d7d26f81df9b68a18ddbe164bdc3c5eff3, 00d60fd3b93219ea854220f0fd264b86398cbc53 < 5966e4e2ba213ab7ad559166152eb4f1f170dd2c … |
| Linux | Linux | — | 4.20, 0 < 4.20, 5.10.260 ≤ 5.10.*, 5.15.211 ≤ 5.15.* … |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 7.8 | HIGH | 3.1 | cna | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References (8)
- https://git.kernel.org/stable/c/622ec2dcd59f21623f2a7ab773c80ceb7d555e3a
- https://git.kernel.org/stable/c/b1e247338bc71826a2d2def3e0874c34749df69a
- https://git.kernel.org/stable/c/0f3058d7d26f81df9b68a18ddbe164bdc3c5eff3
- https://git.kernel.org/stable/c/5966e4e2ba213ab7ad559166152eb4f1f170dd2c
- https://git.kernel.org/stable/c/5165f1cc727f1322456735df212d8e26ec237a8d
- https://git.kernel.org/stable/c/b11c1fa32667692a2c0566e10163758e786e430c
- https://git.kernel.org/stable/c/670fc6a311ed321522b7fff92cf0fc376b4f6e78
- https://git.kernel.org/stable/c/cb481e59ea6cae3b7796ac1d7a22b6b24c3f3c0b