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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-98031

nexthop: Initialize extack in remove_nh_grp_entry()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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()").

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

  • 833a1065eeb14437a9a0dfa9dad06ea09894e0b5 to < 35d9ec61466109ef0c2de87067338d929f629527affected
  • 833a1065eeb14437a9a0dfa9dad06ea09894e0b5 to < 704319510af2179cf03955747d714ab291075c25affected
  • 833a1065eeb14437a9a0dfa9dad06ea09894e0b5 to < 17acbcd4c5a6ca3dd3f9e52eb203c9175bde609aaffected
  • 833a1065eeb14437a9a0dfa9dad06ea09894e0b5 to < 030c878eaedf0449e2b5401a0a0146d0afcc645eaffected
  • 833a1065eeb14437a9a0dfa9dad06ea09894e0b5 to < d643cea4248668dc493c513aa7cbc6505eb1a4a9affected
  • 833a1065eeb14437a9a0dfa9dad06ea09894e0b5 to < d80677ad7aa5bebfccfd58caa4852b65abe70561affected
  • 833a1065eeb14437a9a0dfa9dad06ea09894e0b5 to < 5bd9e4e7cdaa03879e9b73b12ab52cceb1edd55baffected

Linux Linux

Default version status: affected

  • 5.11affected
  • 0 to < 5.11unaffected
  • 5.15.222 to ≤ 5.15.*unaffected
  • 6.1.189 to ≤ 6.1.*unaffected
  • 6.6.158 to ≤ 6.6.*unaffected
  • 6.12.111 to ≤ 6.12.*unaffected
  • 6.18.53 to ≤ 6.18.*unaffected
  • 7.2.7 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References