CVE-2026-22987
net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jan 23, 2026 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
84a7d6797e6a03705e6b48c613fa424662049d87 < 67550a1130b647bb0d093c9c0a810c69aa6a30a8 84a7d6797e6a03705e6b48c613fa424662049d87 < adb25a46dc0a43173f5ea5f5f58fc8ba28970c7c
Linux / Linux
6.17