Riskcovery

CVE-2026-45932

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

State
Published
Severity
7.3 High
Published
May 27, 2026
Updated
Oct 21, 2026
Reserved
May 13, 2026

Read the record on cve.org

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

CVSSScoreVectorSource
3.17.3 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • e420bed025071a623d2720a92bc2245c84757ecb to before 8e1623e7d61faf16cbadc80550da874303611ff5Affected
  • e420bed025071a623d2720a92bc2245c84757ecb to before 0c249f523175963b0a746bba673ecebdf6cefd86Affected
  • e420bed025071a623d2720a92bc2245c84757ecb to before 4e0772cded109c238411f2fac36ac39302758b81Affected
  • e420bed025071a623d2720a92bc2245c84757ecb to before 3f04cc1e5374da4c5e791ae010a06cfea7bacbe6Affected
  • e420bed025071a623d2720a92bc2245c84757ecb to before ae23bc81ddf7c17b663c4ed1b21e35527b0a7131Affected
LinuxLinux
  • 6.6Affected
  • before 6.6Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.114 through 6.12.*Not affected
  • 6.18.14 through 6.18.*Not affected
  • 6.19.4 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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