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Description: bpf: Fix propagation of 32 bit unsigned bounds from 64 bit bounds
References:
https://www.zerodayinitiative.com/advisories/ZDI-21-503/
Notes:
carnil> Commit fixes 3f50f132d840 ("bpf: Verifier, do explicit ALU32
carnil> bounds tracking") in 5.7-rc1.
Bugs:
upstream: released (5.13-rc1) [10bf4e83167cc68595b85fd73bb91e8f2c086e36]
5.10-upstream-stable: released (5.10.37) [4394be0a1866fb78a4dfe0ea38e29c4ed107b890]
4.19-upstream-stable: N/A "Vulnerable code not present"
4.9-upstream-stable: N/A "Vulnerable code not present"
sid: released (5.10.38-1)
4.19-buster-security: N/A "Vulnerable code not present"
4.9-stretch-security: N/A "Vulnerable code not present"
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