CVE-2026-53233

HighCVSS 7.8/10Last modified Jul 7, 2026

Description

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

netdev: fix double-free in netdev_nl_bind_rx_doit()

Sashiko flags that genlmsg_reply() always consumes the skb. The error path calls nlmsg_free(rsp) so we can't jump directly to it. Let's not unbind, just propagate the error to the user. This is the typical way of handling genlmsg_reply() failures. They shouldn't happen unless user does something silly like calling the kernel with an already-full rcvbuf.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

VendorProductVersions
LinuxLinux>= 170aafe35cb98e0f3fbacb446ea86389fbce22ea, < e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599; >= 170aafe35cb98e0f3fbacb446ea86389fbce22ea, < c299321bc6232770ce378d6fa6bc46004d2d7fdb; >= 170aafe35cb98e0f3fbacb446ea86389fbce22ea, < 9b019376cbee10c4f9184d1745fa37d156e36f30; >= 170aafe35cb98e0f3fbacb446ea86389fbce22ea, < c849de7d8757a7af801fc4a4058f71d481d367f2
LinuxLinux6.12

References

Timeline

Published
Jun 25, 2026
Last modified
Jul 7, 2026
NVD status
Analyzed

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CVE-2026-53233: High severity, CVSS 7.8 | Vulnix