CVE-2026-63824
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 00d60fd3b93219ea854220f0fd264b86398cbc53 < 622ec2dcd59f21623f2a7ab773c80ceb7d555e3a | affected |
| Linux | Linux | 00d60fd3b93219ea854220f0fd264b86398cbc53 < b1e247338bc71826a2d2def3e0874c34749df69a | affected |
| Linux | Linux | 00d60fd3b93219ea854220f0fd264b86398cbc53 < 0f3058d7d26f81df9b68a18ddbe164bdc3c5eff3 | affected |
| Linux | Linux | 00d60fd3b93219ea854220f0fd264b86398cbc53 < 5966e4e2ba213ab7ad559166152eb4f1f170dd2c | affected |
| Linux | Linux | 00d60fd3b93219ea854220f0fd264b86398cbc53 < 5165f1cc727f1322456735df212d8e26ec237a8d | affected |
| Linux | Linux | 00d60fd3b93219ea854220f0fd264b86398cbc53 < b11c1fa32667692a2c0566e10163758e786e430c | affected |
| Linux | Linux | 00d60fd3b93219ea854220f0fd264b86398cbc53 < 670fc6a311ed321522b7fff92cf0fc376b4f6e78 | affected |
| Linux | Linux | 00d60fd3b93219ea854220f0fd264b86398cbc53 < cb481e59ea6cae3b7796ac1d7a22b6b24c3f3c0b | affected |
| Linux | Linux | 4.20 | affected |
| Linux | Linux | 0 < 4.20 | unaffected |
| Linux | Linux | 5.10.260 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.211 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.177 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.144 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.95 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.38 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.3 <= 7.1.* | unaffected |
| Linux | Linux | 7.2-rc1 <= * | unaffected |
Weaknesses
References
- 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
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