CVE-2024-49954: static_call: Replace pointless WARN_ON() in static_call_module_notify()
First published: Mon Oct 21 2024(Updated: )
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().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.10<5.15.168 | |
| Linux Kernel | >=5.16<6.1.113 | |
| Linux Kernel | >=6.2<6.6.55 | |
| Linux Kernel | >=6.7<6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- 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
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49954
- https://nvd.nist.gov/vuln/detail/CVE-2024-49954
- https://launchpad.net/bugs/cve/CVE-2024-49954
- https://security-tracker.debian.org/tracker/CVE-2024-49954
- https://ubuntu.com/security/CVE-2024-49954
- https://git.kernel.org/linus/fe513c2ef0a172a58f158e2e70465c4317f0a9a2
Frequently Asked Questions
What is the severity of CVE-2024-49954?
CVE-2024-49954 has a low severity rating as it involves a minor issue regarding a WARN_ON() trigger on memory allocation failure.
How do I fix CVE-2024-49954?
To fix CVE-2024-49954, you should upgrade your Linux kernel to a version that resolves this issue, such as 6.1.123-1 or later.
Which versions of the Linux kernel are affected by CVE-2024-49954?
CVE-2024-49954 affects Linux kernel versions between 5.10 and 5.15.168, and from 5.16 to 6.6.55.
Is there a workaround for CVE-2024-49954?
There is no known workaround for CVE-2024-49954, and the best approach is to apply the recommended updates.
Who is affected by CVE-2024-49954?
Users of the Linux kernel across the affected versions are vulnerable to CVE-2024-49954.
- agent/title
- agent/type
- agent/first-publish-date
- agent/severity
- agent/remedy
- agent/references
- agent/author
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/trending
- collector/usn-cve
- source/Ubuntu
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-api
- agent/softwarecombine
- collector/launchpad-cve
- source/Launchpad
- collector/security-tracker-debian
- source/Debian
- agent/source
- agent/tags
- agent/description
- agent/event
- vendor/linux
- canonical/linux kernel
- version/linux kernel/5.10
- version/linux kernel/5.16
- version/linux kernel/6.2
- version/linux kernel/6.7
- version/linux kernel/6.11
- package-manager/debian