Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Prevent rereg_mr for non-mem regions When a QP/CQ/SRQ is created, a two step process is used where the buffer is allocated in userspace and explicitly registered with the normal reg_mr mechanism prior to creating the actual QP/CQ/SRQ object. These special registrations are indicated via an ABI field so the driver knows that they do not have a valid mkey and to skip the actual CQP command submission. Since these are real MR objects from the core's perspective, it is possible for a user application to invoke rereg_mr on them and cause a real CQP op to be emitted with the zero-initialized mkey value of 0. Fix this by preventing rereg_mr on these special regions.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 715fdb3b30541cc8180b7cdc6aa9f8c307afdf25 before fb46d134e1b8690bed2da9005b36d32d2efd34ac; affected 5ac388db27c443dadfbb0b8b23fa7ccf429d901a before b5029e91c63406e4f4c8d58161048b41b6f0bd8c; affected 5ac388db27c443dadfbb0b8b23fa7ccf429d901a before ca1c29f05274b737dc964e28b97803750d7cf7ec; affected 5ac388db27c443dadfbb0b8b23fa7ccf429d901a before dbaa37e060918c45517786e37ecab0f300b48fa9; affected 5ac388db27c443dadfbb0b8b23fa7ccf429d901a before a846aecb931b4d65d5eafa92a0623545af46d4f2; affected 6.6.120 before 6.6.148 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.6.148 through 6.6.*; unaffected 6.12.101 through 6.12.*; unaffected 6.18.42 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/fb46d134e1b8690bed2da9005b36d32d2efd34ac
- https://git.kernel.org/stable/c/b5029e91c63406e4f4c8d58161048b41b6f0bd8c
- https://git.kernel.org/stable/c/ca1c29f05274b737dc964e28b97803750d7cf7ec
- https://git.kernel.org/stable/c/dbaa37e060918c45517786e37ecab0f300b48fa9
- https://git.kernel.org/stable/c/a846aecb931b4d65d5eafa92a0623545af46d4f2
ADP enrichment
No English description supplied.
No references supplied.