CVE-2026-80880
IB/mlx5: Properly support implicit ODP rereg_mr
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Properly support implicit ODP rereg_mr Due to all the child mkeys in the implicit ODP configuration we cannot change anything in place for the parent mkey. Instead the whole thing needs to be rebuilt if any change is requested. If the user does not specify a translation then force the implicit values which will then fall through the logic into mlx5_ib_reg_user_mr() to allocate a completely new MR. Since implicit children were also touching the mr->pd, this removes another case where the access was racy.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 4, 2026 |
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Affected Versions
Linux / Linux
ef3642c4f54d3493c92c71faf46139b2473bc532 < cbc9982c8573fb9e35040063aa78c8ebe768a1ff ef3642c4f54d3493c92c71faf46139b2473bc532 < ee914ef54a7e707453ecb43eb30fb0a5c6dd0d69 ef3642c4f54d3493c92c71faf46139b2473bc532 < 94f7e50eb6b2ce7fbd9aeac1db22460d2013a3fb ef3642c4f54d3493c92c71faf46139b2473bc532 < eb7cb798e563b3f3b3baeb9cc6f7455764267e50 ef3642c4f54d3493c92c71faf46139b2473bc532 < d4f84bfa089fe71f775d25beb29303e844494c25 ef3642c4f54d3493c92c71faf46139b2473bc532 < 5d02b9a2efd11d28d2a8feac7769686b1b871d9c ef3642c4f54d3493c92c71faf46139b2473bc532 < ee7a8335069150c3f1893a697ab30bbeca00d796
Linux / Linux
5.11
References
git.kernel.org: https://git.kernel.org/stable/c/cbc9982c8573fb9e35040063aa78c8ebe768a1ff git.kernel.org: https://git.kernel.org/stable/c/ee914ef54a7e707453ecb43eb30fb0a5c6dd0d69 git.kernel.org: https://git.kernel.org/stable/c/94f7e50eb6b2ce7fbd9aeac1db22460d2013a3fb git.kernel.org: https://git.kernel.org/stable/c/eb7cb798e563b3f3b3baeb9cc6f7455764267e50 git.kernel.org: https://git.kernel.org/stable/c/d4f84bfa089fe71f775d25beb29303e844494c25 git.kernel.org: https://git.kernel.org/stable/c/5d02b9a2efd11d28d2a8feac7769686b1b871d9c git.kernel.org: https://git.kernel.org/stable/c/ee7a8335069150c3f1893a697ab30bbeca00d796