nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error The `nouveau_dmem_copy_one` function ensures that the copy push command is sent to the device firmware but does not track whether it was executed successfully. In the case of a copy error (e.g., firmware or hardware failure), the copy push command will be sent via the firmware channel, and `nouveau_dmem_copy_one` will likely report success, leading to the `migrate_to_ram` function returning a dirty HIGH_USER page to the user. This can result in a security vulnerability, as a HIGH_USER page that may contain sensitive or corrupted data could be returned to the user. To prevent this vulnerability, we allocate a zero page. Thus, in case of an error, a non-dirty (zero) page will be returned to the user.
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 | 5.1 and later | 5.4.285, 5.10.227, 5.15.168, 6.1.113, 6.6.57, 6.11.4, 6.12 | Patch available | CNA |
- Linux VendorLinux Affected 5.1 and later Fixed in 5.4.285, 5.10.227, 5.15.168, 6.1.113, 6.6.57, 6.11.4, 6.12 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.1 to before 5.4.285; 5.5 to before 5.10.227; 5.11 to before 5.15.168; 5.16 to before 6.1.113; 6.2 to before 6.6.57; 6.7 to before 6.11.4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* | 6.12 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* | 6.12 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.1 to before 5.4.285; 5.5 to before 5.10.227; 5.11 to before 5.15.168; 5.16 to before 6.1.113; 6.2 to before 6.6.57; 6.7 to before 6.11.4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* Versions 6.12 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* Versions 6.12 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.285, 5.10.227, 5.15.168, 6.1.113, 6.6.57, 6.11.4, 6.12
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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-2024-50096
- 2026-10-03 Alias added: GHSA-9ffw-88h4-2w7x
References
Patch 7
- https://git.kernel.org/stable/c/fd9bb7e996bab9b9049fffe3f3d3b50dee191d27
- https://git.kernel.org/stable/c/73f75d2b5aee5a735cf64b8ab4543d5c20dbbdd9
- https://git.kernel.org/stable/c/8c3de9282dde21ce3c1bf1bde3166a4510547aa9
- https://git.kernel.org/stable/c/614bfb2050982d23d53d0d51c4079dba0437c883
- https://git.kernel.org/stable/c/697e3ddcf1f8b68bd531fc34eead27c000bdf3e1
- https://git.kernel.org/stable/c/ab4d113b6718b076046018292f821d5aa4b844f8
- https://git.kernel.org/stable/c/835745a377a4519decd1a36d6b926e369b3033e2
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- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-50096 · CVE Program
- CVE-2024-50096 · NVD
- FIRST EPSS
- GHSA-9ffw-88h4-2w7x · GitHub Advisory Database · CC BY 4.0
- CVE-2024-50096 · Red Hat security data · CC BY 4.0
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