CVE-2026-53233

HIGH

netdev: fix double-free in netdev_nl_bind_rx_doit()

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 3.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-415
Status published
Products (15)
linux/Kernel 6.12.0 - 6.12.94linux
linux/Kernel 6.13.0 - 6.18.36linux
linux/Kernel 6.19.0 - 7.0.13linux
Linux/Linux < 6.12
Linux/Linux 170aafe35cb98e0f3fbacb446ea86389fbce22ea - 9b019376cbee10c4f9184d1745fa37d156e36f30
Linux/Linux 170aafe35cb98e0f3fbacb446ea86389fbce22ea - c299321bc6232770ce378d6fa6bc46004d2d7fdb
Linux/Linux 170aafe35cb98e0f3fbacb446ea86389fbce22ea - c849de7d8757a7af801fc4a4058f71d481d367f2
Linux/Linux 170aafe35cb98e0f3fbacb446ea86389fbce22ea - e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599
Linux/Linux 6.12
Linux/Linux 6.12.94 - 6.12.*
... and 5 more
Published Jun 25, 2026
Tracked Since Jun 25, 2026