Re: [syzbot] [io-uring?] KASAN: global-out-of-bounds Read in io_uring_show_fdinfo

From: syzbot

Date: Thu Oct 30 2025 - 19:56:08 EST


Hello,

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

Reported-by: syzbot+b883b008a0b1067d5833@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+b883b008a0b1067d5833@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 0b447e53 Merge branch 'for-6.19/io_uring' into for-next
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git for-next
console output: https://syzkaller.appspot.com/x/log.txt?x=15d34e14580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7c3bc5e43bf487cd
dashboard link: https://syzkaller.appspot.com/bug?extid=b883b008a0b1067d5833
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8

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