CVE-2026-74348 ocfs2/dlm: require a ref for locking_state debugfs open

🗓️ 15 Aug 2026 05:58:35Reported by GoogleType

osv

osv🔗 osv.dev👁 2 Views

ocfs2/dlm debugfs open ignores dlm_grab NULL return, causing use-after-free in dlm_put during release.

Source	Link
git	www.git.kernel.org/stable/c/03ad858ce8064861ea580021976dc19b7aabb549
git	www.git.kernel.org/stable/c/5bee5d5f67aedd26d2b72e00e49dd93331fbcc30
git	www.git.kernel.org/stable/c/6cc93dea4078cbcddee63fa2234e382a76600464
git	www.git.kernel.org/stable/c/90a6512425414098a63fc97b77bed089c75d106b
git	www.git.kernel.org/stable/c/9c81c1a61a52b6ecf0d14f1dbd95f154a7a9e92a
git	www.git.kernel.org/stable/c/a087b2d3411e7f9df71ba3293596923ee2c70d65
git	www.git.kernel.org/stable/c/a09831214912a1f270663d935613910fafd8d883
git	www.git.kernel.org/stable/c/aa7883b6a3c76301a3299deb34de948e73bb6a08
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74348.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-74348

16 Aug 2026 03:48Current

5.6Medium risk

Vulners AI Score5.6

ocfs2 dlm debugfs use-after-free Linux kernel