linux: The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bo...
CVE-2021-45402 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-45402, released February 11, 2022. It is not reported as exploited. Patch Radar priority: Routine.
The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.15.15-1 | DEBIAN-CVE-2021-45402 | Feb 11, 2022 |
| linux · Debian 13.5 (trixie) | 5.15.15-1 | DEBIAN-CVE-2021-45402 | Feb 11, 2022 |
| linux · Debian 14 | 5.15.15-1 | DEBIAN-CVE-2021-45402 | Feb 11, 2022 |
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