Re: [syzbot] [bpf?] KASAN: slab-out-of-bounds Read in strnchr

[syzbot]

Hello,

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

Reported-by: syzbot+2c29addf92581b410079@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+2c29addf92581b410079@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         22cc16c0 riscv, bpf: Fix incorrect usage of BPF_TRAMP_..
git tree:       bpf
console output: https://syzkaller.appspot.com/x/log.txt?x=15ef2074580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a94030c847137a18
dashboard link: https://syzkaller.appspot.com/bug?extid=2c29addf92581b410079
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=13a15e9a580000

Note: testing is done by a robot and is best-effort only.