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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-63987

ethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: ethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES ethnl_update_profile() walks the ETHTOOL_A_PROFILE_IRQ_MODERATION nest list with an index 'i' and writes new_profile[i++] without bounding i. The destination is kmemdup()'d at NET_DIM_PARAMS_NUM_PROFILES entries (5), but the Netlink nest count is entirely user-controlled. Netlink policies do not have support for constraining the number of nested entries (or number of multi-attr entries).

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

  • f750dfe825b904164688adeb147950e0e0c4d262 to < d4c9cc7c47781c6f4fa29d80a1193a8bcd1525bcaffected
  • f750dfe825b904164688adeb147950e0e0c4d262 to < 0c02c190bcd9822477038ff2cee10ea584ac1b1daffected
  • f750dfe825b904164688adeb147950e0e0c4d262 to < 6205f7166d2dd14a017a5802c81e5bd1421a8635affected
  • f750dfe825b904164688adeb147950e0e0c4d262 to < 7281b096b072f6c6e30420e3467d738f2e4c4b57affected

Linux Linux

Default version status: affected

  • 6.11affected
  • 0 to < 6.11unaffected
  • 6.12.93 to ≤ 6.12.*unaffected
  • 6.18.35 to ≤ 6.18.*unaffected
  • 7.0.12 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References