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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-22987

net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy syzbot reported a crash in tc_act_in_hw() during netns teardown where tcf_idrinfo_destroy() passed an ERR_PTR(-EBUSY) value as a tc_action pointer, leading to an invalid dereference. Guard against ERR_PTR entries when iterating the action IDR so teardown does not call tc_act_in_hw() on an error pointer.

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

  • 84a7d6797e6a03705e6b48c613fa424662049d87 to < 67550a1130b647bb0d093c9c0a810c69aa6a30a8affected
  • 84a7d6797e6a03705e6b48c613fa424662049d87 to < adb25a46dc0a43173f5ea5f5f58fc8ba28970c7caffected

Linux Linux

Default version status: affected

  • 6.17affected
  • 0 to < 6.17unaffected
  • 6.18.6 to ≤ 6.18.*unaffected
  • 6.19 to ≤ *unaffected

References