btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()
0Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Track
exploitation probability
—
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()
If we have an unexpected reloc_root for our root, we jump to the out label
but never drop the reference we obtained for root, resulting in a leak.
Add a missing btrfs_put_root() call.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/60a23d4ea169e27403f3bb023bb98036797c0206https://git.kernel.org/stable/c/72f673d1c1deb819554d3e7e154f6d84301eb735https://git.kernel.org/stable/c/7591d1727067d6063247901ad25c4bdc4e5695c4https://git.kernel.org/stable/c/b3d39b03799600c76c33486e2d29b73a771023dbhttps://git.kernel.org/stable/c/ce6050bafb4e33377dc17fcc357736bfc351180c