Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: clean up our handling of refs == 0 in snapshot delete In reada we BUG_ON(refs == 0), which could be unkind since we aren't holding a lock on the extent leaf and thus could get a transient incorrect answer. In walk_down_proc we also BUG_ON(refs == 0), which could happen if we have extent tree corruption. Change that to return -EUCLEAN. In do_walk_down() we catch this case and handle it correctly, however we return -EIO, which -EUCLEAN is a more appropriate error code. Finally in walk_up_proc we have the same BUG_ON(refs == 0), so convert that to proper error handling. Also adjust the error message so we can actually do something with the information.

INFO

Published Date :

2024-09-27T12:39:34.998Z

Last Modified :

2026-01-05T10:53:35.228Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2024-46840 vulnerability.

Vendors Products
Linux
  • Linux Kernel

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