CVE-2026-72150

sunrpc: fix uninitialized xprt_create_args structure

N/A
Published: August 15, 2026 at 05:53 AM UTC
Updated: August 18, 2026 at 07:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.15 ≤ v < 6.18.406.15 ≤ v < 7.1.56.15 ≤ v < 7.26.15df210d9b0951d714c1668c511ca5c8ff38cf6916
Vendor states this is fixed in 17d90b68c3a3d7d7e95b49e1fe9381a723f637a8 (fixed)
Vendor states this is fixed in 7d3ce3bd23c062a7c1c6d372d1b08e48b9e17cc3 (fixed)
Vendor states this is fixed in 933654508b2bc36e2c3c086c0365e2403fb2141f (fixed)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.18.40 (unaffected)
Vendor states this is fixed in 7.1.5 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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