CVE-2025-68373

In the Linux kernel, the following vulnerability has been resolved: md: avoid repeated calls to del_gendisk There is a uaf problem which is found by case 23rdev-lifetime: Oops: general protection fault, probably for non-canonical address 0xdead000000000122 RIP: 0010:bdi_unregister+0x4b/0x170 Call Trace: <TASK> __del_gendisk+0x356/0x3e0 mddev_unlock+0x351/0x360 rdev_attr_store+0x217/0x280 kernfs_fop_write_iter+0x14a/0x210 vfs_write+0x29e/0x550 ksys_write+0x74/0xf0 do_syscall_64+0xbb/0x380 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff5250a177e The sequence is: 1. rdev remove path gets reconfig_mutex 2. rdev remove path release reconfig_mutex in mddev_unlock 3. md stop calls do_md_stop and sets MD_DELETED 4. rdev remove path calls del_gendisk because MD_DELETED is set 5. md stop path release reconfig_mutex and calls del_gendisk again So there is a race condition we should resolve. This patch adds a flag MD_DO_DELETE to avoid the race condition.

• https://git.kernel.org/stable/c/90e3bb44c0a86e245d8e5c6520206fa113acb1ee
• https://git.kernel.org/stable/c/b4c5cf406062ad44cd178269571530c6435b2f3b
• https://git.kernel.org/stable/c/f0fae1debeb9102398ddf2ef69b4f5d395afafed

Published

Dec 24, 2025

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2025-68368In the Linux kernel, the following vulnerability has been re…
• CVE-2025-68369In the Linux kernel, the following vulnerability has been re…7.5
• CVE-2025-6837A vulnerability classified as critical was found in code-pro…9.8
• CVE-2025-68370In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2025-68371In the Linux kernel, the following vulnerability has been re…
• CVE-2025-68372In the Linux kernel, the following vulnerability has been re…
• CVE-2025-68374In the Linux kernel, the following vulnerability has been re…
• CVE-2025-68375In the Linux kernel, the following vulnerability has been re…
• CVE-2025-68376In the Linux kernel, the following vulnerability has been re…
• CVE-2025-68377In the Linux kernel, the following vulnerability has been re…
• CVE-2025-68378In the Linux kernel, the following vulnerability has been re…
• CVE-2025-68379In the Linux kernel, the following vulnerability has been re…7.8