CVE-2024-50272: filemap: Fix bounds checking in filemap_read()
First published: Tue Nov 19 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: filemap: Fix bounds checking in filemap_read() If the caller supplies an iocb->ki_pos value that is close to the filesystem upper limit, and an iterator with a count that causes us to overflow that limit, then filemap_read() enters an infinite loop. This behaviour was discovered when testing xfstests generic/525 with the "localio" optimisation for loopback NFS mounts.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=3.16.40<3.17 | |
| Linux Kernel | >=4.7.10<4.8 | |
| Linux Kernel | >=4.8.4<4.9 | |
| Linux Kernel | >=4.9<6.1.117 | |
| Linux Kernel | >=6.2<6.6.61 | |
| Linux Kernel | >=6.7<6.11.8 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| Linux Kernel | =6.12-rc4 | |
| Linux Kernel | =6.12-rc5 | |
| Linux Kernel | =6.12-rc6 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/26530b757c81f1389fb33ae0357500150933161b
- https://git.kernel.org/stable/c/a2746ab3bbc9c6408da5cd072653ec8c24749235
- https://git.kernel.org/stable/c/6450e73f4c86d481ac2e22e1bc848d346e140826
- https://git.kernel.org/stable/c/ace149e0830c380ddfce7e466fe860ca502fe4ee
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50272
- https://nvd.nist.gov/vuln/detail/CVE-2024-50272
- https://launchpad.net/bugs/cve/CVE-2024-50272
- https://security-tracker.debian.org/tracker/CVE-2024-50272
- https://ubuntu.com/security/CVE-2024-50272
- https://git.kernel.org/linus/ace149e0830c380ddfce7e466fe860ca502fe4ee
Frequently Asked Questions
What is the severity of CVE-2024-50272?
CVE-2024-50272 has been rated as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2024-50272?
To fix CVE-2024-50272, you should update your Linux kernel to the latest stable version that addresses this vulnerability.
Which versions of the Linux kernel are affected by CVE-2024-50272?
CVE-2024-50272 affects multiple versions of the Linux kernel from 3.16.40 up to 6.12-rc6.
What type of vulnerability is CVE-2024-50272?
CVE-2024-50272 is a bounds checking vulnerability affecting the filemap_read() function of the Linux kernel.
Can CVE-2024-50272 lead to system compromise?
Yes, exploitation of CVE-2024-50272 could potentially lead to system instability or unexpected behavior.
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