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Avoid overflow in vtruncbuf()
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Authored by tuexen on Jan 6 2019, 9:33 PM.
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Details

Summary

When running the attached test program, the kernel panics due to trunclbn becoming negative. Therefore use a larger type (int64_t).

This issue was found by running syzkaller.

Test Plan

Run the attached test program.

Diff Detail

Repository
rS FreeBSD src repository - subversion
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