static_call: Replace pointless WARN_ON() in static_call_module_notify()
Priority LOW 24Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 5 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
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().
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.15.168, 6.1.113, 6.6.55 +3Red Hat: 1 advisoryRed Hat: 5 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.10 and later | 5.15.168, 6.1.113, 6.6.55, 6.10.14, 6.11.3, 6.12 | Patch available | CNA |
- Linux VendorLinux Affected 5.10 and later Fixed in 5.15.168, 6.1.113, 6.6.55, 6.10.14, 6.11.3, 6.12 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.10 to before 5.15.168; 5.16 to before 6.1.113; 6.2 to before 6.6.55; 6.7 to before 6.10.14; 6.11 to before 6.11.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.10 to before 5.15.168; 5.16 to before 6.1.113; 6.2 to before 6.6.55; 6.7 to before 6.10.14; 6.11 to before 6.11.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.168, 6.1.113, 6.6.55, 6.10.14, 6.11.3, 6.12
Red Hat 1 advisory
- RHSA-2025:6966 Released 2025-05-13 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.12.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.12.1.el9_6, kernel-64k-devel-5.14.0-570.12.1.el9_6 +12
- Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.12.1.el9_6, kernel-64k-5.14.0-570.12.1.el9_6, kernel-64k-core-5.14.0-570.12.1.el9_6 +28
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.12.1.el9_6, libperf-5.14.0-570.12.1.el9_6
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.12.1.el9_6, kernel-rt-64k-5.14.0-570.12.1.el9_6, kernel-rt-64k-core-5.14.0-570.12.1.el9_6 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.12.1.el9_6, kernel-rt-core-5.14.0-570.12.1.el9_6, kernel-rt-debug-5.14.0-570.12.1.el9_6 +11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2025:6966 |
Not affected: 1 product
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2024-49954
- 2026-10-03 Alias added: GHSA-hr6h-7jqj-mx8j
- 2026-10-29 Affected versions changed · Red Hat
References
Patch 6
- https://git.kernel.org/stable/c/bc9356513d56b688775497b7ac6f2b967f46a80c
- https://git.kernel.org/stable/c/ea2cdf4da093d0482f0ef36ba971e2e0c7673425
- https://git.kernel.org/stable/c/e67534bd31d79952b50e791e92adf0b3e6c13b8c
- https://git.kernel.org/stable/c/85a104aaef1f56623acc10ba4c42d5f046ba65b7
- https://git.kernel.org/stable/c/b83bef74c121a3311240fc4002d23486b85355e4
- https://git.kernel.org/stable/c/fe513c2ef0a172a58f158e2e70465c4317f0a9a2
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Sources
- CVE-2024-49954 · CVE Program
- CVE-2024-49954 · NVD
- FIRST EPSS
- GHSA-hr6h-7jqj-mx8j · GitHub Advisory Database · CC BY 4.0
- CVE-2024-49954 · Red Hat security data · CC BY 4.0
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