CVE-2026-72150

sunrpc: fix uninitialized xprt_create_args structure

State
Published
Severity
Not scored
Published
Aug 15, 2026
Updated
Aug 18, 2026
Reserved
Aug 9, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • df210d9b0951d714c1668c511ca5c8ff38cf6916 to before 933654508b2bc36e2c3c086c0365e2403fb2141fAffected
  • df210d9b0951d714c1668c511ca5c8ff38cf6916 to before 7d3ce3bd23c062a7c1c6d372d1b08e48b9e17cc3Affected
  • df210d9b0951d714c1668c511ca5c8ff38cf6916 to before 17d90b68c3a3d7d7e95b49e1fe9381a723f637a8Affected
LinuxLinux
  • 6.15Affected
  • before 6.15Not affected
  • 6.18.40 through 6.18.*Not affected
  • 7.1.5 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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