CVE-2024-26943
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-26943
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26943.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-26943
- Downstream
- Related
- Published
- 2024-05-01T05:18:00.713Z
- Modified
- 2025-11-27T02:32:30.736800Z
- Summary
- nouveau/dmem: handle kcalloc() allocation failure
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
nouveau/dmem: handle kcalloc() allocation failure
The kcalloc() in nouveaudmemevictchunk() will return null if the physical memory has run out. As a result, if we dereference srcpfns, dstpfns or dmaaddrs, the null pointer dereference bugs will happen.
Moreover, the GPU is going away. If the kcalloc() fails, we could not evict all pages mapping a chunk. So this patch adds a _GFPNOFAIL flag in kcalloc().
Finally, as there is no need to have physically contiguous memory, this patch switches kcalloc() to kvcalloc() in order to avoid failing allocations.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/blob/cc431b3424123d84bcd7afd4de150b33f117a8ef/cves/2024/26xxx/CVE-2024-26943.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b
- https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d
- https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee
- https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2
- https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced249881232e1471d28b68f9a3829acc14d150cf5dFixed9acfd8b083a0ffbd387566800d89f55058a68af2
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced249881232e1471d28b68f9a3829acc14d150cf5dFixed2a84744a037b8a511d6a9055f3defddc28ff4a4d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced249881232e1471d28b68f9a3829acc14d150cf5dFixed5e81773757a95fc298e96cfd6d4700f07b6192a2
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced249881232e1471d28b68f9a3829acc14d150cf5dFixed3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced249881232e1471d28b68f9a3829acc14d150cf5dFixed16e87fe23d4af6df920406494ced5c0f4354567b