Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 943e942e6266f22babee5efeb00f8f672fbff5bd before dfb6d54893d544151e7f480bc44cfe7823f5ad23; affected 943e942e6266f22babee5efeb00f8f672fbff5bd before 9141144b37f30e3e7fa024bcfa0a13011e546ba9; affected 943e942e6266f22babee5efeb00f8f672fbff5bd before e1777b4286e526c58b4ee699344b0ad85aaf83a0; affected 943e942e6266f22babee5efeb00f8f672fbff5bd before b1814724e0d7162bdf4799f2d565381bc2251c63; affected 943e942e6266f22babee5efeb00f8f672fbff5bd before c89a529e823d51dd23c7ec0c047c7a454a428541 |
| Linux / Linux | affected 4.18; unaffected 0 before 4.18; unaffected 5.10.163 through 5.10.*; unaffected 5.15.87 through 5.15.*; unaffected 6.0.17 through 6.0.*; unaffected 6.1.3 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/dfb6d54893d544151e7f480bc44cfe7823f5ad23
- https://git.kernel.org/stable/c/9141144b37f30e3e7fa024bcfa0a13011e546ba9
- https://git.kernel.org/stable/c/e1777b4286e526c58b4ee699344b0ad85aaf83a0
- https://git.kernel.org/stable/c/b1814724e0d7162bdf4799f2d565381bc2251c63
- https://git.kernel.org/stable/c/c89a529e823d51dd23c7ec0c047c7a454a428541
ADP enrichment
No English description supplied.
No references supplied.