CVE-2024-42094
Published: July 31, 2024Last modified: July 31, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: net/iucv: Avoid explicit cpumask var allocation on stack For CONFIG_CPUMASK_OFFSTACK=y kernel, explicit allocation of cpumask variable on stack is not recommended since it can cause potential stack overflow. Instead, kernel code should always use *cpumask_var API(s) to allocate cpumask var in config-neutral way, leaving allocation strategy to CONFIG_CPUMASK_OFFSTACK. Use *cpumask_var API(s) to address it.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.97-r0) |
| 25 LTS | linux-lts | Fixed (6.12.41-r0) | |
| Stream | linux-lts | Fixed (6.12.41-r0) |
References
- https://git.kernel.org/stable/c/0af718a690acc089aa1bbb95a93df833d864ef53
- https://git.kernel.org/stable/c/2b085521be5292016097b5e7ca81b26be3f7098d
- https://git.kernel.org/stable/c/2d090c7f7be3b26fcb80ac04d08a4a8062b1d959
- https://git.kernel.org/stable/c/724e7965af054079242b8d6f7e50ee226730a756
- https://git.kernel.org/stable/c/842afb47d84536fc976fece8fb6c54bea711ad1a
- https://git.kernel.org/stable/c/9dadab0db7d904413ea1cdaa13f127da05c31e71
- https://git.kernel.org/stable/c/be4e1304419c99a164b4c0e101c7c2a756b635b9
- https://git.kernel.org/stable/c/d85ca8179a54ff8cf1e1f8c3c9e3799831319bae