CVE-2026-72150

Description

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix uninitialized xprt_create_args structure The xprt_create_args structure is allocated on the stack without initialization in rpc_sysfs_xprt_switch_add_xprt_store(). While some fields are manually populated, critical fields like srcaddr, bc_xps, and flags contain uninitialized stack garbage. This can lead to: 1. Kernel panic when xs_setup_xprt() dereferences garbage srcaddr 2. Information leak if srcaddr points to sensitive stack data 3. Unpredictable behavior if flags has random bits set The fix is to zero-initialize the structure to ensure all unused fields are NULL/0, preventing the transport setup code from acting on garbage data.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://git.kernel.org/stable/c/933654508b2bc36e2c3c086c0365e2403fb2141f ↗
• https://git.kernel.org/stable/c/7d3ce3bd23c062a7c1c6d372d1b08e48b9e17cc3 ↗
• https://git.kernel.org/stable/c/17d90b68c3a3d7d7e95b49e1fe9381a723f637a8 ↗