Re: [syzbot] [smc?] general protection fault in __smc_diag_dump (4)

syzbot
2025-09-19T12:15:06Z

syzbot has bisected this issue to:

commit 98d4435efcbf37801a3246fb53856c4b934a2613
Author: Jeongjun Park <aha310510@gmail.com>
Date: Thu Aug 29 03:56:48 2024 +0000

net/smc: prevent NULL pointer dereference in txopt_get

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=131dc712580000
start commit: 5aca7966d2a7 Merge tag 'perf-tools-fixes-for-v6.17-2025-09..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=109dc712580000
console output: https://syzkaller.appspot.com/x/log.txt?x=171dc712580000
kernel config: https://syzkaller.appspot.com/x/.config?x=8f01d8629880e620
dashboard link: https://syzkaller.appspot.com/bug?extid=f775be4458668f7d220e
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17aec534580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=115a9f62580000

Reported-by: syzbot+f775be4458668f7d220e@syzkaller.appspotmail.com
Fixes: 98d4435efcbf ("net/smc: prevent NULL pointer dereference in txopt_get")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection