{"id":"CVE-2026-98031","published":"2026-09-25T11:17:31.787","lastModified":"2026-09-25T11:17:31.787","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnexthop: Initialize extack in remove_nh_grp_entry()\n\nremove_nh_grp_entry() prints the extack message when a listener fails\nto replace the reduced nexthop group. However, extack is not\ninitialized and listeners are not required to set a message when\nreturning an error. Neither netdevsim nor mlxsw do so when an\nallocation fails, resulting in the dereference of an uninitialized\nstack pointer.\n\nFix by zero-initializing extack, as was done in commit 6347c5314cee\n(\"nexthop: initialize extack in nh_res_bucket_migrate()\").","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/030c878eaedf0449e2b5401a0a0146d0afcc645e","tags":[]},{"url":"https://git.kernel.org/stable/c/5bd9e4e7cdaa03879e9b73b12ab52cceb1edd55b","tags":[]},{"url":"https://git.kernel.org/stable/c/d643cea4248668dc493c513aa7cbc6505eb1a4a9","tags":[]},{"url":"https://git.kernel.org/stable/c/d80677ad7aa5bebfccfd58caa4852b65abe70561","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}