CVE-2026-43153

Description

In the Linux kernel, the following vulnerability has been resolved: xfs: remove xfs_attr_leaf_hasname The calling convention of xfs_attr_leaf_hasname() is problematic, because it returns a NULL buffer when xfs_attr3_leaf_read fails, a valid buffer when xfs_attr3_leaf_lookup_int returns -ENOATTR or -EEXIST, and a non-NULL buffer pointer for an already released buffer when xfs_attr3_leaf_lookup_int fails with other error values. Fix this by simply open coding xfs_attr_leaf_hasname in the callers, so that the buffer release code is done by each caller of xfs_attr3_leaf_read.

References

• https://git.kernel.org/stable/c/2fbc8421d1db102c0e5458607e042a23a03648b1
• https://git.kernel.org/stable/c/3a65ea768b8094e4699e72f9ab420eb9e0f3f568
• https://git.kernel.org/stable/c/457121c01f609b9934addbb04d5c1ef638c71c61
• https://git.kernel.org/stable/c/530082df991903f3330354e99e0cb7b05debfa86