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CVE-2024-36918

bpf: Check bloom filter map value size PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: bpf: Check bloom filter map value size This patch adds a missing check to bloom filter creating, rejecting values above KMALLOC_MAX_SIZE. This brings the bloom map in line with many other map types. The lack of this protection can cause kernel crashes for value sizes that overflow int's. Such a crash was caught by syzkaller. The next patch adds more guard-rails at a lower level.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 9330986c03006ab1d33d243b7cfe598a7a3c1baa before fa6995eeb62e74b5a1480c73fb7b420c270784d3; affected 9330986c03006ab1d33d243b7cfe598a7a3c1baa before 608e13706c8b6c658a0646f09ebced74ec367f7c; affected 9330986c03006ab1d33d243b7cfe598a7a3c1baa before c418afb9bf23e2f2b76cb819601e4a5d9dbab42d; affected 9330986c03006ab1d33d243b7cfe598a7a3c1baa before a8d89feba7e54e691ca7c4efc2a6264fa83f3687
Linux / Linuxaffected 5.16; unaffected 0 before 5.16; unaffected 6.1.91 through 6.1.*; unaffected 6.6.31 through 6.6.*; unaffected 6.8.10 through 6.8.*; unaffected 6.9 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.