Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
b40656aa7d559adc1fe689396dc58b92a9a27286 to < 09dc18894148381d3bfc550083b1236043870dceaffectedb40656aa7d559adc1fe689396dc58b92a9a27286 to < eba5df21eda0fe7418efbea2f799f8ea1b8ca94caffectedb40656aa7d559adc1fe689396dc58b92a9a27286 to < 2904e985a2917b5dac65df82733065e78a65fc9daffectedb40656aa7d559adc1fe689396dc58b92a9a27286 to < 50334a05a950840b39a1ce3d2a173b4183db9b3eaffectedb40656aa7d559adc1fe689396dc58b92a9a27286 to < badad6fad60def1b9805559dd81dbab3d97b82aaaffected
Linux Linux
Default version status: affected
6.2affected0 to < 6.2unaffected6.6.143 to ≤ 6.6.*unaffected6.12.94 to ≤ 6.12.*unaffected6.18.36 to ≤ 6.18.*unaffected7.0.13 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected
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 ↗