Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix double free related to rereg_user_mr If IB_MR_REREG_TRANS is set during rereg_user_mr, the umem will be released and a new one will be allocated in irdma_rereg_mr_trans. If any step of irdma_rereg_mr_trans fails after the new umem is allocated, it releases the umem, but does not set iwmr->region to NULL. The problem is that this failure is propagated to the user, who will then call ibv_dereg_mr (as they should). Then, the dereg_mr path will see a non-NULL umem and attempt to call ib_umem_release again. Fix this by setting iwmr->region to NULL after ib_umem_release. Fixed: 5ac388db27c4 ("RDMA/irdma: Add support to re-register a memory region")
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 715fdb3b30541cc8180b7cdc6aa9f8c307afdf25 before 62298a48f8b8788ad8b8464e6ffdf1ddebd2217e; affected 5ac388db27c443dadfbb0b8b23fa7ccf429d901a before 66964118f1f50ed85001c8fc9f7ab5bbdd021ee0; affected 5ac388db27c443dadfbb0b8b23fa7ccf429d901a before 0f22c32141acdcda266b26cab2b830baf870f3e0; affected 5ac388db27c443dadfbb0b8b23fa7ccf429d901a before 0c5d70bcb9d2275a1c8515a924016fcfeb4ab441; affected 5ac388db27c443dadfbb0b8b23fa7ccf429d901a before 29a3edd7004bb635d299fb9bc6f0ea4ef13ed5a2; affected 6.6.120 before 6.6.136 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.6.136 through 6.6.*; unaffected 6.12.83 through 6.12.*; unaffected 6.18.24 through 6.18.*; unaffected 6.19.14 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/62298a48f8b8788ad8b8464e6ffdf1ddebd2217e
- https://git.kernel.org/stable/c/66964118f1f50ed85001c8fc9f7ab5bbdd021ee0
- https://git.kernel.org/stable/c/0f22c32141acdcda266b26cab2b830baf870f3e0
- https://git.kernel.org/stable/c/0c5d70bcb9d2275a1c8515a924016fcfeb4ab441
- https://git.kernel.org/stable/c/29a3edd7004bb635d299fb9bc6f0ea4ef13ed5a2
ADP enrichment
No English description supplied.
No references supplied.