- Vulnerability/
- CVE-2024-50218
CVE-2024-50218: ocfs2: pass u64 to ocfs2_truncate_inline maybe overflow
First published: Sat Nov 09 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ocfs2: pass u64 to ocfs2_truncate_inline maybe overflow Syzbot reported a kernel BUG in ocfs2_truncate_inline. There are two reasons for this: first, the parameter value passed is greater than ocfs2_max_inline_data_with_xattr, second, the start and end parameters of ocfs2_truncate_inline are "unsigned int". So, we need to add a sanity check for byte_start and byte_len right before ocfs2_truncate_inline() in ocfs2_remove_inode_range(), if they are greater than ocfs2_max_inline_data_with_xattr return -EINVAL.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | <=5.10.223-1 | 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/0b6b8c2055784261de3fb641c5d0d63964318e8f
- https://git.kernel.org/stable/c/27d95867bee806cdc448d122bd99f1d8b0544035
- https://git.kernel.org/stable/c/2fe5d62e122b040ce7fc4d31aa7fa96ae328cefc
- https://git.kernel.org/stable/c/70767689ec6ee5f05fb0a2c17d7ec1927946e486
- https://git.kernel.org/stable/c/88f97a4b5843ce21c1286e082c02a5fb4d8eb473
- https://git.kernel.org/stable/c/95fbed8ae8c32c0977e6be1721c190d8fea23f2f
- https://git.kernel.org/stable/c/bc0a2f3a73fcdac651fca64df39306d1e5ebe3b0
- https://git.kernel.org/stable/c/ecd62f684386fa64f9c0cea92eea361f4e6444c2
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50218
- https://nvd.nist.gov/vuln/detail/CVE-2024-50218
- https://launchpad.net/bugs/cve/CVE-2024-50218
- https://security-tracker.debian.org/tracker/CVE-2024-50218
- https://ubuntu.com/security/CVE-2024-50218
- https://git.kernel.org/linus/bc0a2f3a73fcdac651fca64df39306d1e5ebe3b0
Frequently Asked Questions
What is the severity of CVE-2024-50218?
CVE-2024-50218 has been classified as a high severity vulnerability due to the potential for kernel crashes.
How do I fix CVE-2024-50218?
To fix CVE-2024-50218, update your Linux kernel to versions 5.10.234-1, 6.1.128-1, 6.12.12-1, or later.
Which systems are affected by CVE-2024-50218?
CVE-2024-50218 affects specific versions of the Linux kernel, particularly prior to 5.10.234-1 and 6.1.128-1.
What does CVE-2024-50218 impact?
CVE-2024-50218 impacts the ocfs2 file system in the Linux kernel, specifically related to inline data truncation.
Who reported CVE-2024-50218?
CVE-2024-50218 was reported by the Syzbot automated testing tool, indicating a kernel bug.
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