Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: RDMA: During rereg_mr ensure that REREG_ACCESS is compatible If IB_MR_REREG_ACCESS changes from RO to RW then the umem has to be re-evaluated to ensure it is properly pinned as RW. Since the umem is hidden inside each driver's mr struct add a ib_umem_check_rereg() function that each driver has to call before processing IB_MR_REREG_ACCESS. mlx4 has to retain its duplicate ib_access_writable check because it implements IB_MR_REREG_ACCESS | IB_MR_REREG_TRANS by changing both items in place sequentially while the MR is live, so it will continue to not support this combination.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b40656aa7d559adc1fe689396dc58b92a9a27286 before 09dc18894148381d3bfc550083b1236043870dce; affected b40656aa7d559adc1fe689396dc58b92a9a27286 before eba5df21eda0fe7418efbea2f799f8ea1b8ca94c; affected b40656aa7d559adc1fe689396dc58b92a9a27286 before 2904e985a2917b5dac65df82733065e78a65fc9d; affected b40656aa7d559adc1fe689396dc58b92a9a27286 before 50334a05a950840b39a1ce3d2a173b4183db9b3e; affected b40656aa7d559adc1fe689396dc58b92a9a27286 before badad6fad60def1b9805559dd81dbab3d97b82aa |
| Linux / Linux | affected 6.2; unaffected 0 before 6.2; unaffected 6.6.143 through 6.6.*; unaffected 6.12.94 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/09dc18894148381d3bfc550083b1236043870dce
- https://git.kernel.org/stable/c/eba5df21eda0fe7418efbea2f799f8ea1b8ca94c
- https://git.kernel.org/stable/c/2904e985a2917b5dac65df82733065e78a65fc9d
- https://git.kernel.org/stable/c/50334a05a950840b39a1ce3d2a173b4183db9b3e
- https://git.kernel.org/stable/c/badad6fad60def1b9805559dd81dbab3d97b82aa
ADP enrichment
No English description supplied.
No references supplied.