CVE-2026-80880None▾ SunlitIn 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. In…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= ef3642c4f54d3493c92c71faf46139b2473bc532 < cbc9982c8573fb9e35040063aa78c8ebe768a1ffLinux >= ef3642c4f54d3493c92c71faf46139b2473bc532 < ee914ef54a7e707453ecb43eb30fb0a5c6dd0d69Linux >= ef3642c4f54d3493c92c71faf46139b2473bc532 < 94f7e50eb6b2ce7fbd9aeac1db22460d2013a3fbLinux >= ef3642c4f54d3493c92c71faf46139b2473bc532 < eb7cb798e563b3f3b3baeb9cc6f7455764267e50Linux >= ef3642c4f54d3493c92c71faf46139b2473bc532 < d4f84bfa089fe71f775d25beb29303e844494c25Linux >= ef3642c4f54d3493c92c71faf46139b2473bc532 < 5d02b9a2efd11d28d2a8feac7769686b1b871d9cLinux >= ef3642c4f54d3493c92c71faf46139b2473bc532 < ee7a8335069150c3f1893a697ab30bbeca00d796Linux 5.11Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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