CVE-2024-47746 fuse: use exclusive lock when FUSE_I_CACHE_IO_MODE is set

What is CVE-2024-47746?

CVE-2024-47746 is a medium-severity vulnerability in Linux kernel, published on 21 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

fuse: use exclusive lock when FUSE_I_CACHE_IO_MODE is set

This may be a typo. The comment has said shared locks are not allowed when this bit is set. If using shared lock, the wait in `fuse_file_cached_io_open` may be forever.

Weakness: CWE-667

Which versions are affected by CVE-2024-47746?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-47746?

Apply the vendor's patch.

Is CVE-2024-47746 being exploited?

There is no known exploitation of CVE-2024-47746 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-47746, DEBIAN-CVE-2024-47746, GHSA-379f-cj7p-7fjj, UBUNTU-CVE-2024-47746.