CVE-2026-45932

HIGH

bpf: Fix tcx/netkit detach permissions when prog fd isn't given

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix tcx/netkit detach permissions when prog fd isn't given This commit fixes a security issue where BPF_PROG_DETACH on tcx or netkit devices could be executed by any user when no program fd was provided, bypassing permission checks. The fix adds a capability check for CAP_NET_ADMIN or CAP_SYS_ADMIN in this case.

Scores

CVSS v3 7.3
EPSS 0.0013
EPSS Percentile 3.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Details

Status published
Products (11)
linux/Kernel 6.19.0 - 6.19.4linux
linux/Kernel 6.6.0 - 6.18.14linux
Linux/Linux < 6.6
Linux/Linux 6.18.14 - 6.18.*
Linux/Linux 6.19.4 - 6.19.*
Linux/Linux 6.6
Linux/Linux 7.0
Linux/Linux e420bed025071a623d2720a92bc2245c84757ecb - 3f04cc1e5374da4c5e791ae010a06cfea7bacbe6
Linux/Linux e420bed025071a623d2720a92bc2245c84757ecb - 4e0772cded109c238411f2fac36ac39302758b81
Linux/Linux e420bed025071a623d2720a92bc2245c84757ecb - ae23bc81ddf7c17b663c4ed1b21e35527b0a7131
... and 1 more
Published May 27, 2026
Tracked Since May 27, 2026