CVE-2026-43321 PUBLISHED

bpf: Properly mark live registers for indirect jumps

Assigner: Linux
Reserved: 01.05.2026 Published: 08.05.2026 Updated: 09.05.2026

In the Linux kernel, the following vulnerability has been resolved:

bpf: Properly mark live registers for indirect jumps

For a gotox rX instruction the rX register should be marked as used in the compute_insn_live_regs() function. Fix this.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 493d9e0d608339a32f568504d5fd411a261bb0af to 7beae54111c34ca63357ef120e115889b915beb5 (excl.)
  • affected from 493d9e0d608339a32f568504d5fd411a261bb0af to d1aab1ca576c90192ba961094d51b0be6355a4d6 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.19 is affected
  • unaffected from 0 to 6.19 (excl.)
  • unaffected from 6.19.6 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References