On Mon, 3 Jul 2023 at 09:14, 'David Rientjes' via syzkaller-bugs <syzkaller-bugs@xxxxxxxxxxxxxxxx> wrote: > > On Sun, 2 Jul 2023, syzbot wrote: > > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit: e8f75c0270d9 Merge tag 'x86_sgx_for_v6.5' of git://git.ker.. > > git tree: upstream > > console output: https://syzkaller.appspot.com/x/log.txt?x=168b84fb280000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=a98ec7f738e43bd4 > > dashboard link: https://syzkaller.appspot.com/bug?extid=cf0693aee9ea61dda749 > > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10310670a80000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1220c777280000 > > > > Downloadable assets: > > disk image: https://storage.googleapis.com/syzbot-assets/f27c1d41217a/disk-e8f75c02.raw.xz > > vmlinux: https://storage.googleapis.com/syzbot-assets/843ae5d5c810/vmlinux-e8f75c02.xz > > kernel image: https://storage.googleapis.com/syzbot-assets/da48bc4c0ec1/bzImage-e8f75c02.xz > > mounted in repro: https://storage.googleapis.com/syzbot-assets/658601e354e4/mount_0.gz > > > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > > Reported-by: syzbot+cf0693aee9ea61dda749@xxxxxxxxxxxxxxxxxxxxxxxxx > > > > Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ___slab_alloc+0x12c3/0x1400 mm/slub.c:3270 > > CPU: 0 PID: 5009 Comm: syz-executor248 Not tainted 6.4.0-syzkaller-01406-ge8f75c0270d9 #0 > > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 > > Call Trace: > > <TASK> > > __dump_stack lib/dump_stack.c:88 [inline] > > dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 > > panic+0x686/0x730 kernel/panic.c:340 > > __stack_chk_fail+0x19/0x20 kernel/panic.c:759 > > ___slab_alloc+0x12c3/0x1400 mm/slub.c:3270 > > > > This is happening during while mounting reiserfs, so I'm inclined to think > it's more of a reisterfs issue than a slab allocator issue :/ Now we can make it official :) #syz set subsystems: reiserfs To remove from open mm issues: https://syzkaller.appspot.com/upstream/s/mm to reiserfs issues: https://syzkaller.appspot.com/upstream/s/reiserfs
