exfat: fix out-of-bounds access of directory entries
CVE-2024-53147 · published 24 Dec 2024
How serious is it
- Severity: high, CVSS score 7.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2024-53147?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 to < 82dc96f0f4eec8afdde8467d21d1b6b989dbb20a, 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 to < a0120d6463368378539ef928cf067d02372efb8c, 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 to < 3ddd1cb2b458ff6a193bc845f408dfff217db29e, 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 to < 184fa506e392eb78364d9283c961217ff2c0617b
- Linux Linux: 5.7
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
In the Linux kernel, the following vulnerability has been resolved:
exfat: fix out-of-bounds access of directory entries
In the case of the directory size is greater than or equal to
the cluster size, if start_clu becomes an EOF cluster(an invalid
cluster) due to file system corruption, then the directory entry
where ei->hint_femp.eidx hint is outside the directory, resulting
in an out-of-bounds access, which may cause further file system
corruption.
This commit adds a check for start_clu, if it is an invalid cluster,
the file or directory will be treated as empty.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/82dc96f0f4eec8afdde8467d21d1b6b989dbb20a
- git.kernel.org/stable/c/a0120d6463368378539ef928cf067d02372efb8c
- git.kernel.org/stable/c/3ddd1cb2b458ff6a193bc845f408dfff217db29e
- git.kernel.org/stable/c/184fa506e392eb78364d9283c961217ff2c0617b
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON