Re: [syzbot] KASAN: vmalloc-out-of-bounds Read in __bpf_prog_put

syzbot
2022-01-20T14:17:23Z

syzbot suspects this issue was fixed by commit:

commit 218d747a4142f281a256687bb513a135c905867b
Author: John Fastabend <john.fastabend@gmail.com>
Date: Tue Jan 4 21:46:45 2022 +0000

bpf, sockmap: Fix double bpf_prog_put on error case in map_link

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12919c37b00000
start commit: 662f11d55ffd docs: networking: dpaa2: Fix DPNI header
git tree: net
kernel config: https://syzkaller.appspot.com/x/.config?x=fa556098924b78f0
dashboard link: https://syzkaller.appspot.com/bug?extid=5027de09e0964fd78ce1
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14fccadbb00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1598d9ebb00000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: bpf, sockmap: Fix double bpf_prog_put on error case in map_link

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