IT

Tracker / CVE-2024-35936

CVE-2024-35936

Medium 5.5

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

Affected products and versions

debian debian_linux
linux linux_kernel · … → 4.19.312
linux linux_kernel · 4.20 → 5.4.274
linux linux_kernel · 5.11 → 5.15.155
linux linux_kernel · 5.16 → 6.1.86
linux linux_kernel · 5.5 → 5.10.215
linux linux_kernel · 6.2 → 6.6.27
linux linux_kernel · 6.7 → 6.8.6

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References