Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header() mpf_ops_parse_header() reads header_size from the bitstream at MPF_HEADER_SIZE_OFFSET (24). When header_size is zero, the expression *(buf + header_size - 1) reads one byte before the buffer start. Since initial_header_size is set to 71 in mpf_ops, the fpga-mgr core guarantees the buffer is large enough to reach MPF_HEADER_SIZE_OFFSET. The only real gap is the zero header_size case, which cannot be resolved by providing a larger buffer, so return -EINVAL.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5f8d4a9008307e0bf210906948953386935d361c before e45ec24d8e986d79a8e07f49a816c414ad283622; affected 5f8d4a9008307e0bf210906948953386935d361c before 0d3766fecd9b2db39a18b48021c15c522997ec25; affected 5f8d4a9008307e0bf210906948953386935d361c before a1baee24df72ec8fd1d6925c1d5162ffff4ee3bf; affected 5f8d4a9008307e0bf210906948953386935d361c before c9ef79e34bc1eac4fd59051e5c7b96a74e59d46f; affected 5f8d4a9008307e0bf210906948953386935d361c before 3da8eaf5469eda2353b72038d644fabddb848ce1; affected 5f8d4a9008307e0bf210906948953386935d361c before 43a1974da6bc7ce8f4d1dc1d03d56997428c29c3 |
| Linux / Linux | affected 6.0; unaffected 0 before 6.0; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e45ec24d8e986d79a8e07f49a816c414ad283622
- https://git.kernel.org/stable/c/0d3766fecd9b2db39a18b48021c15c522997ec25
- https://git.kernel.org/stable/c/a1baee24df72ec8fd1d6925c1d5162ffff4ee3bf
- https://git.kernel.org/stable/c/c9ef79e34bc1eac4fd59051e5c7b96a74e59d46f
- https://git.kernel.org/stable/c/3da8eaf5469eda2353b72038d644fabddb848ce1
- https://git.kernel.org/stable/c/43a1974da6bc7ce8f4d1dc1d03d56997428c29c3