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.
Product status
84a7d6797e6a03705e6b48c613fa424662049d87 (git) before 67550a1130b647bb0d093c9c0a810c69aa6a30a8
84a7d6797e6a03705e6b48c613fa424662049d87 (git) before adb25a46dc0a43173f5ea5f5f58fc8ba28970c7c
6.17
Any version before 6.17
6.18.6 (semver)
6.19 (original_commit_for_fix)
References
git.kernel.org/...c/67550a1130b647bb0d093c9c0a810c69aa6a30a8
git.kernel.org/...c/adb25a46dc0a43173f5ea5f5f58fc8ba28970c7c