CVE-2025-38411
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
In the Linux kernel, a double put of a request was found in the netfs subsystem. If a netfs request finishes during the pause loop, the IN_PROGRESS flag is cleared, but the subsequent wait loop may release the reference again, leading to incorrect behavior.
Risk Assessment
A double reference release can cause kernel memory corruption, potentially leading to system crashes or privilege escalation.
Recommendation
Apply the kernel patch that fixes CVE-2025-38411. Update your system to the latest stable kernel version.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix double put of request If a netfs request finishes during the pause loop, it will have the ref that belongs to the IN_PROGRESS flag removed at that point - however, if it then goes to the final wait loop, that will *also* put the ref because it sees that the IN_PROGRESS flag is clear and incorrectly assumes that this happened when it called the collector. In fact, since IN_PROGRESS is clear, we shouldn't call the collector again since it's done all the cleanup, such as calling ->ki_complete(). Fix this by making netfs_collect_in_app() just return, indicating that we're done if IN_PROGRESS is removed.