IT

Tracker / CVE-2023-53672

CVE-2023-53672

Medium 5.5

In the Linux kernel, the following vulnerability has been resolved: btrfs: output extra debug info if we failed to find an inline backref [BUG] Syzbot reported several warning triggered inside lookup_inline_extent_backref(). [CAUSE] As usual, the reproducer doesn't reliably trigger locally here, but at least we know the WARN_ON() is triggered when an inline backref can not be found, and it can only be triggered when @insert is true. (I.e. inserting a new inline backref, which means the backref should already exist) [ENHANCEMENT] After the WARN_ON(), dump all the parameters and the extent tree leaf to help debug.

Affected products and versions

linux linux_kernel
linux linux_kernel · 3.9.1 → 4.14.326
linux linux_kernel · 4.15 → 4.19.295
linux linux_kernel · 4.20 → 5.4.257
linux linux_kernel · 5.11 → 5.15.133
linux linux_kernel · 5.16 → 6.1.55
linux linux_kernel · 5.5 → 5.10.197
linux linux_kernel · 6.2 → 6.5.5

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