drm/lima: fix shared irq handling on driver remove
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/lima: fix shared irq handling on driver remove lima uses a shared interrupt, so the interrupt handlers must be prepared to be called at any time. At driver removal time, the clocks are disabled early and the interrupts stay registered until the very end of the remove process due to the devm usage. This is potentially a bug as the interrupts access device registers which assumes clocks are enabled. A crash can be triggered by removing the driver in a kernel with CONFIG_DEBUG_SHIRQ enabled. This patch frees the interrupts at each lima device finishing callback so that the handlers are already unregistered by the time we fully disable clocks.
Why it matters now
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 | 5.2 and later | 5.4.280, 5.10.222, 5.15.163, 6.1.98, 6.6.39, 6.9.9, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 5.2 and later Fixed in 5.4.280, 5.10.222, 5.15.163, 6.1.98, 6.6.39, 6.9.9, 6.10 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.2 to before 5.4.280; 5.5 to before 5.10.222; 5.11 to before 5.15.163; 5.16 to before 6.1.98; 6.2 to before 6.6.39; 6.7 to before 6.9.9 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.2 to before 5.4.280; 5.5 to before 5.10.222; 5.11 to before 5.15.163; 5.16 to before 6.1.98; 6.2 to before 6.6.39; 6.7 to before 6.9.9 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.280, 5.10.222, 5.15.163, 6.1.98, 6.6.39, 6.9.9, 6.10
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-42127
- 2026-10-03 Alias added: GHSA-rp69-chrc-4849
References
Patch 7
- https://git.kernel.org/stable/c/0d60c43df59ef01c08dc7b0c45495178f9d05a13
- https://git.kernel.org/stable/c/25d0d9b83d855cbc5d5aa5ae3cd79d55ea0c84a8
- https://git.kernel.org/stable/c/17fe8b75aaf0bb1bdc31368963446b421c22d0af
- https://git.kernel.org/stable/c/0a487e977cb8897ae4c51ecd34bbaa2b005266c9
- https://git.kernel.org/stable/c/04d531b9a1875846d4f89953b469ad463aa7a770
- https://git.kernel.org/stable/c/b5daf9217a50636a969bc1965f827878aeb09ffe
- https://git.kernel.org/stable/c/a6683c690bbfd1f371510cb051e8fa49507f3f5e
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Sources
- CVE-2024-42127 · CVE Program
- CVE-2024-42127 · NVD
- FIRST EPSS
- GHSA-rp69-chrc-4849 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-42127 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences