Messages in this thread | | | From | Andrei Matei <> | Date | Mon, 13 Nov 2023 19:03:43 -0500 | Subject | Re: bpf: incorrect stack_depth after var off stack access causes OOB |
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I have sent https://lore.kernel.org/bpf/20231113235008.127238-1-andreimatei1@gmail.com/T/#u as a fix.
Hao, thanks again for the report. For my edification, how did you get the KASAN bug report with your repro / which tree exactly were you running against and with what config? I've run your repro program in the VM created by vmtest.sh, with an added CONFIG_KASAN=y in the config, and I did not get the bug report in dmesg; I got nothing. However, if I change the variable offset bounds to be around 200 bytes instead of 12, then I do get a kernel panic because of a page fault.
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