CVE-2026-64005CWE-662CWE-667

CVE-2026-64005

High · published July 19, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
0.8
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

net/smc: Do not re-initialize smc hashtables

INIT_HLIST_HEAD(&smc_v*_hashinfo.ht) are called after smc_nl_init(),

proto_register() and sock_register(). This can lead to smc_v*_hashinfo.ht

being reset even though hash entries already exist and are being used,

possibly resulting in a corrupted list.

Remove unnecessary and dangerous re-initialisation of smc_v*_hashinfo.ht in

smc_init(); it is implicitly initialised to zero anyhow. Add

HLIST_HEAD_INIT to the definitions for clarity.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00100 · 0.8th percentile
Weaknesses
CWE-662 · Improper Synchronization; CWE-667 · Improper Locking
Published
2026-07-19T20:17Z
Affected products (12)
ProductVersionsFixed in
linux/linux_kernel≥ 4.11, < 5.10.2595.10.259
linux/linux_kernel≥ 5.11, < 5.15.2105.15.210
linux/linux_kernel≥ 5.16, < 6.1.1766.1.176
linux/linux_kernel≥ 6.2, < 6.6.1436.6.143
linux/linux_kernel≥ 6.7, < 6.12.936.12.93
linux/linux_kernel≥ 6.13, < 6.18.356.18.35
linux/linux_kernel≥ 6.19, < 7.0.127.0.12
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (8)
EPSS history
Timeline
  • 19 JUL 14:56Z
    net/smc: Do not re-initialize smc hashtables
    cvelistv5