Re: [syzbot] [net?] KASAN: slab-use-after-free Write in l2tp_session_delete

syzbot
2024-06-27T12:49:04Z

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

kernel clean failed: failed to run ["make" "-j" "64" "ARCH=x86_64" "distclean"]: exit status 2
Makefile:83: *** Cannot find a vmlinux for VMLINUX_BTF at any of " ../../vmlinux /sys/kernel/btf/vmlinux /boot/vmlinux-5.9.0-0.bpo.5-cloud-amd64". Stop.
make[2]: *** [Makefile:192: sched_ext_clean] Error 2
make[1]: *** [/syzkaller/jobs-2/linux/kernel/Makefile:1361: sched_ext] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:240: __sub-make] Error 2

Tested on:

commit: f76698bd Add linux-next specific files for 20240621
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
kernel config: https://syzkaller.appspot.com/x/.config?x=e78fc116033e0ab7
dashboard link: https://syzkaller.appspot.com/bug?extid=c041b4ce3a6dfd1e63e2
compiler:
patch: https://syzkaller.appspot.com/x/patch.diff?x=175c26c1980000