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CVE-2026-43030

bpf: Fix regsafe() for pointers to packet

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.12.81, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix regsafe() for pointers to packet In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N regsafe() may return true which may lead to current state with valid packet range not being explored. Fix the bug.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 95b6ec733752b31bfd166c4609d2c1b5cdde9b47 · fixed in b52f6d0ef7b308f9d05bbddb78749852f28e8e40; From 6d94e741a8ff818e5518da8257f5ca0aaed1f269 · fixed in 37db6b9726d0bcf91cbdf9d63b558c50da49f968; From 6d94e741a8ff818e5518da8257f5ca0aaed1f269 · fixed in 015a74476dc1ab6923d89f1ee009aaf43faa7185; From 6d94e741a8ff818e5518da8257f5ca0aaed1f269 · fixed in b99d82706bd1511bb875e3de7154698fd9215c99; From 6d94e741a8ff818e5518da8257f5ca0aaed1f269 · fixed in 7241da033fdc507b920e092dab1f97b945cb0370; From 6d94e741a8ff818e5518da8257f5ca0aaed1f269 · fixed in 8aebe18069394f4a79d2d82080a0f806da449996; From 6d94e741a8ff818e5518da8257f5ca0aaed1f269 · fixed in ca995b1462ec6db1e869100ba1fb7356bd3f22f0; From 6d94e741a8ff818e5518da8257f5ca0aaed1f269 · fixed in a8502a79e832b861e99218cbd2d8f4312d62e225; From 5.10.155 · fixed in 5.10.253

  • Linux Linux

    5.11

  • KernelLinux

    fixed in 5.10.253; From 5.11.0 · fixed in 5.15.203; fixed in 6.1.168; From 5.16.0 · fixed in 6.6.134; From 6.2.0 · fixed in 6.12.81; From 6.7.0 · fixed in 6.18.22; From 6.13.0 · fixed in 6.19.12

References 8

git.kernel.org