CVE-2021-33200 (GCVE-0-2021-33200)
Vulnerability from cvelistv5
Published
2021-05-27 00:00
Modified
2024-08-03 23:42
Severity ?
CWE
  • n/a
Summary
kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit.
References
Impacted products
Vendor Product Version
n/a n/a Version: n/a
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