Unrated severityNVD Advisory· Published Sep 17, 2026· Updated Oct 30, 2026
CVE-2026-90135
CVE-2026-90135
Description
In the Linux kernel, the following vulnerability has been resolved:
net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()
sashiko is reporting that trying to read /sys/kernel/debug/ref_tracker/* causes use-afer-free crash when either alloc_percpu() or dev_addr_init() in alloc_netdev_mqs() failed, for commit 4d92b95ff2f9 ("net: add net device refcount tracker infrastructure") added ref_tracker_dir_exit() to only free_netdev() path.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- osv-coords2 versions
>= 5.17.0, < 6.1.191+ 1 more
- (no CPE)range: >= 5.17.0, < 6.1.191
- (no CPE)range: < 7.2.7-1.1
Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/0b1c2af8a22c35cb099c735c2f63ea3ba757557dnvd
- git.kernel.org/stable/c/2775bf36be7872834a7f8c0a0d9681a1a3e1cd4cnvd
- git.kernel.org/stable/c/45be87c5195f34c0a51598bc91186f600be5c4c9nvd
- git.kernel.org/stable/c/5fe03b5257095e2beef0bc79e1f068fbd09a24c7nvd
- git.kernel.org/stable/c/63ab05e8f9654aa100d366c0236399fda6ffaab1nvd
- git.kernel.org/stable/c/b0859020cab4ea6101478141aeec1b052ed80bddnvd
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