Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: cn10k: restrict VF LMTLINE sharing to its own PF rvu_mbox_handler_lmtst_tbl_setup() uses req->base_pcifunc as a direct index into the LMT map table to read another function's LMTLINE physical base address and copy it into the caller's own LMT map table entry. The mailbox dispatcher authenticates req->hdr.pcifunc from the IRQ source, but req->base_pcifunc is a separate payload field and is not sanitized. Reject the request with -EPERM when a VF caller's base_pcifunc is not a valid function under its own PF. is_pf_func_valid() bounds the FUNC field to the PF's configured VF count, keeping the computed index inside the caller's own slot block.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 893ae97214c385be02f8ec097298cc48c7f0d905 before 04c014e49b9f53d58a8f94adece8a0af3ae1b85c; affected 893ae97214c385be02f8ec097298cc48c7f0d905 before 6967dd944be2a71eddab3a2ae1a1a4dd9e5f8eed; affected 893ae97214c385be02f8ec097298cc48c7f0d905 before e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11; affected 893ae97214c385be02f8ec097298cc48c7f0d905 before 54535692bec9ef464adc714108eb19e49e38b5a2; affected 893ae97214c385be02f8ec097298cc48c7f0d905 before c73b8795b45f4ad5a95120d2e9b435ea4616e08e; affected 893ae97214c385be02f8ec097298cc48c7f0d905 before 59da37fee81a8d76079313348ca13c5bc90dd6ae; affected 893ae97214c385be02f8ec097298cc48c7f0d905 before 8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915 |
| Linux / Linux | affected 5.14; unaffected 0 before 5.14; unaffected 5.15.217 through 5.15.*; unaffected 6.1.184 through 6.1.*; unaffected 6.6.148 through 6.6.*; unaffected 6.12.101 through 6.12.*; unaffected 6.18.42 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/04c014e49b9f53d58a8f94adece8a0af3ae1b85c
- https://git.kernel.org/stable/c/6967dd944be2a71eddab3a2ae1a1a4dd9e5f8eed
- https://git.kernel.org/stable/c/e9c5b03208507dd6d58b0c23a2c60b5c2f4c1b11
- https://git.kernel.org/stable/c/54535692bec9ef464adc714108eb19e49e38b5a2
- https://git.kernel.org/stable/c/c73b8795b45f4ad5a95120d2e9b435ea4616e08e
- https://git.kernel.org/stable/c/59da37fee81a8d76079313348ca13c5bc90dd6ae
- https://git.kernel.org/stable/c/8cdcf3d2caacdee7ddd363705fb4d93b0c1a0915
ADP enrichment
No English description supplied.
No references supplied.