CVE-2026-89988
CVE CVE-2026-89988EUVD EUVD-2026-80596Published 2026-09-16T10:33:03.000ZLast changed 2026-09-16T14:41:04.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: kprobes: Protect kprobe_blacklist with RCU __within_kprobe_blacklist() traverses kprobe_blacklist without holding kprobe_mutex. When a module is unloaded, kprobe_remove_area_blacklist() removes blacklist entries and immediately frees them with kfree(). A concurrent call to within_kprobe_blacklist() can therefore dereference freed memory. Furthermore, within_kprobe_blacklist() can be called in atomic or non-preemptible contexts where the sleeping kprobe_mutex cannot be taken. Protect kprobe_blacklist with RCU. Use guard(rcu)() and list_for_each_entry_rcu() for traversal, list_add_tail_rcu() for insertions, list_del_rcu() for deletions, and kfree_rcu() to reclaim entries safely after a grace period.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 0; patch: 6.12.110; 376e242429bf8539ef39a080ac113c8799840b13 <0c4256196b3a105307e2235fbfd85e768bbcdd0f; patch: 7.2.5; 376e242429bf8539ef39a080ac113c8799840b13 <630ed8734a02b992e8a97538179c2ece42c5210f; 376e242429bf8539ef39a080ac113c8799840b13 <8f406205003f741225f620f0e357ca0de71d45e3; 376e242429bf8539ef39a080ac113c8799840b13 <6e62cf983a2bd547e6bbd3f935539233e5f97f8f; 376e242429bf8539ef39a080ac113c8799840b13 <5da247e4d1e8661d4d6f997101d59967e8994e32; patch: 7.3-rc2; patch: 6.1.188; patch: 6.6.157; patch: 6.18.51; 376e242429bf8539ef39a080ac113c8799840b13 <518d9b5568bb06f86e4434f7a30faa9612ea91ad; 3.16
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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