Re: [syzbot] [bpf?] [net?] KMSAN: uninit-value in dev_map_lookup_elem

From: syzbot
Date: Thu Mar 28 2024 - 13:58:12 EST


Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+1a3cf6f08d68868f9db3@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: d8889e86 bpf: Mark bpf prog stack with kmsan_unposion_..
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/martin.lau/bpf-next.git interpreter.kmsan
console output: https://syzkaller.appspot.com/x/log.txt?x=10385eb1180000
kernel config: https://syzkaller.appspot.com/x/.config?x=e6bd769cb793b98a
dashboard link: https://syzkaller.appspot.com/bug?extid=1a3cf6f08d68868f9db3
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.