linux: A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel
CVE-2021-20320 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-20320, released February 18, 2022. It is not reported as exploited. Patch Radar priority: Routine.
A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.14.9-1 | DEBIAN-CVE-2021-20320 | Feb 18, 2022 |
| linux · Debian 13.5 (trixie) | 5.14.9-1 | DEBIAN-CVE-2021-20320 | Feb 18, 2022 |
| linux · Debian 14 | 5.14.9-1 | DEBIAN-CVE-2021-20320 | Feb 18, 2022 |
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