CVE-2022-50756
- Source
- https://cve.org/CVERecord?id=CVE-2022-50756
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50756.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-50756
- Downstream
- Related
- Published
- 2025-12-24T13:05:49.635Z
- Modified
- 2026-03-12T03:26:52.071881Z
- Summary
- nvme-pci: fix mempool alloc size
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
nvme-pci: fix mempool alloc size
Convert the max size to bytes to match the units of the divisor that calculates the worst-case number of PRP entries.
The result is used to determine how many PRP Lists are required. The code was previously rounding this to 1 list, but we can require 2 in the worst case. In that scenario, the driver would corrupt memory beyond the size provided by the mempool.
While unlikely to occur (you'd need a 4MB in exactly 127 phys segments on a queue that doesn't support SGLs), this memory corruption has been observed by kfence.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50756.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/9141144b37f30e3e7fa024bcfa0a13011e546ba9
- https://git.kernel.org/stable/c/b1814724e0d7162bdf4799f2d565381bc2251c63
- https://git.kernel.org/stable/c/c89a529e823d51dd23c7ec0c047c7a454a428541
- https://git.kernel.org/stable/c/dfb6d54893d544151e7f480bc44cfe7823f5ad23
- https://git.kernel.org/stable/c/e1777b4286e526c58b4ee699344b0ad85aaf83a0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50756.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-50756
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
-
Introduced943e942e6266f22babee5efeb00f8f672fbff5bdFixeddfb6d54893d544151e7f480bc44cfe7823f5ad23Fixed9141144b37f30e3e7fa024bcfa0a13011e546ba9Fixede1777b4286e526c58b4ee699344b0ad85aaf83a0Fixedb1814724e0d7162bdf4799f2d565381bc2251c63Fixedc89a529e823d51dd23c7ec0c047c7a454a428541