CVE-2026-45932

published 2026-05-27

CVE-2026-45932: 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…

high 7.3 CVSS 3.1

AV L AC L PR L UI N S U C L I H A H

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.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
linux	linux	—	—
linux	linux	>= e420bed025071a623d2720a92bc2245c84757ecb < 4e0772cded109c238411f2fac36ac39302758b81	4e0772cded109c238411f2fac36ac39302758b81
linux	linux	>= e420bed025071a623d2720a92bc2245c84757ecb < 3f04cc1e5374da4c5e791ae010a06cfea7bacbe6	3f04cc1e5374da4c5e791ae010a06cfea7bacbe6
linux	linux	>= e420bed025071a623d2720a92bc2245c84757ecb < ae23bc81ddf7c17b663c4ed1b21e35527b0a7131	ae23bc81ddf7c17b663c4ed1b21e35527b0a7131
linux	linux_kernel	—	—