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 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.

CVSS 3.1

7.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

Published

2026-05-27

Modified

2026-10-21

Record from

the NVD, synced 2026-10-22

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/0c249f523175963b0a746bba673ecebdf6cefd86
• https://git.kernel.org/stable/c/3f04cc1e5374da4c5e791ae010a06cfea7bacbe6
• https://git.kernel.org/stable/c/4e0772cded109c238411f2fac36ac39302758b81
• https://git.kernel.org/stable/c/8e1623e7d61faf16cbadc80550da874303611ff5
• https://git.kernel.org/stable/c/ae23bc81ddf7c17b663c4ed1b21e35527b0a7131

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