CVE-2026-98031
In the Linux kernel, the following vulnerability has been resolved: nexthop: Initialize extack in remove_nh_grp_entry() remove_nh_grp_entr
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Published: Sep 25, 2026 · Last modified: Sep 25, 2026
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In the Linux kernel, the following vulnerability has been resolved: nexthop: Initialize extack in remove_nh_grp_entry() remove_nh_grp_entry() prints the extack message when a listener fails to replace the reduced nexthop group. However, extack is not initialized and listeners are not required to set a message when returning an error. Neither netdevsim nor mlxsw do so when an allocation fails, resulting in the dereference of an uninitialized stack pointer. Fix by zero-initializing extack, as was done in commit 6347c5314cee ("nexthop: initialize extack in nh_res_bucket_migrate()").
- git.kernel.orghttps://git.kernel.org/stable/c/030c878eaedf0449e2b5401a0a0146d0afcc645e
- git.kernel.orghttps://git.kernel.org/stable/c/5bd9e4e7cdaa03879e9b73b12ab52cceb1edd55b
- git.kernel.orghttps://git.kernel.org/stable/c/d643cea4248668dc493c513aa7cbc6505eb1a4a9
- git.kernel.orghttps://git.kernel.org/stable/c/d80677ad7aa5bebfccfd58caa4852b65abe70561
No related CVEs by CWE or product.