CVE-2026-43153

About vulnerability

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. A flaw was found in the Linux kernel’s XFS filesystem. The xfs_attr_leaf_hasname() function has a problematic calling convention that can lead to incorrect buffer handling. This issue can result in the use of already released memory buffers, potentially causing memory corruption or system instability. A local attacker could exploit this vulnerability to cause a denial of service.

Live-patch status from KernelCare for each operating system.