CVE-2024-49954
Published: October 23, 2024Last modified: October 23, 2024
Description
In the Linux kernel, the following vulnerability has been resolved: static_call: Replace pointless WARN_ON() in static_call_module_notify() static_call_module_notify() triggers a WARN_ON(), when memory allocation fails in __static_call_add_module(). That's not really justified, because the failure case must be correctly handled by the well known call chain and the error code is passed through to the initiating userspace application. A memory allocation fail is not a fatal problem, but the WARN_ON() takes the machine out when panic_on_warn is set. Replace it with a pr_warn().
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.114-r0) |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/85a104aaef1f56623acc10ba4c42d5f046ba65b7
- https://git.kernel.org/stable/c/b83bef74c121a3311240fc4002d23486b85355e4
- https://git.kernel.org/stable/c/bc9356513d56b688775497b7ac6f2b967f46a80c
- https://git.kernel.org/stable/c/e67534bd31d79952b50e791e92adf0b3e6c13b8c
- https://git.kernel.org/stable/c/ea2cdf4da093d0482f0ef36ba971e2e0c7673425
- https://git.kernel.org/stable/c/fe513c2ef0a172a58f158e2e70465c4317f0a9a2