CVE-2024-35936: btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()
First published: Sun May 19 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks() The unhandled case in btrfs_relocate_sys_chunks() loop is a corruption, as it could be caused only by two impossible conditions: - at first the search key is set up to look for a chunk tree item, with offset -1, this is an inexact search and the key->offset will contain the correct offset upon a successful search, a valid chunk tree item cannot have an offset -1 - after first successful search, the found_key corresponds to a chunk item, the offset is decremented by 1 before the next loop, it's impossible to find a chunk item there due to alignment and size constraints
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.6-1 |
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Reference Links
- https://git.kernel.org/stable/c/0d23b34c68c46cd225b55868bc8a269e3134816d
- https://git.kernel.org/stable/c/1f9212cdbd005bc55f2b7422e7b560d9c02bd1da
- https://git.kernel.org/stable/c/36c2a2863bc3896243eb724dc3fd4cf9aea633f2
- https://git.kernel.org/stable/c/576164bd01bd795f8b09fb194b493103506b33c9
- https://git.kernel.org/stable/c/7411055db5ce64f836aaffd422396af0075fdc99
- https://git.kernel.org/stable/c/87299cdaae757f3f41212146cfb5b3af416b8385
- https://git.kernel.org/stable/c/bebd9e0ff90034875c5dfe4bd514fd7055fc7a89
- https://git.kernel.org/stable/c/d1ffa4ae2d591fdd40471074e79954ec45f147f7
- https://launchpad.net/bugs/cve/CVE-2024-35936
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-35936
- https://nvd.nist.gov/vuln/detail/CVE-2024-35936
- https://security-tracker.debian.org/tracker/CVE-2024-35936
- https://ubuntu.com/security/CVE-2024-35936
- https://git.kernel.org/linus/7411055db5ce64f836aaffd422396af0075fdc99
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