syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: ce83278f313c Merge branch 'qed-enhancements' > git tree: net-next > console output: https://syzkaller.appspot.com/x/log.txt?x=11c8ce3ab00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=b5949d4891208a1b > dashboard link: https://syzkaller.appspot.com/bug?extid=5027de09e0964fd78ce1 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > Unfortunately, I don't have any reproducer for this issue yet. > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+5027de09e0964fd78ce1@xxxxxxxxxxxxxxxxxxxxxxxxx > > ================================================================== > BUG: KASAN: vmalloc-out-of-bounds in __bpf_prog_put.constprop.0+0x1dd/0x220 kernel/bpf/syscall.c:1812 > Read of size 8 at addr ffffc90000cf2038 by task kworker/0:24/16179 > > CPU: 0 PID: 16179 Comm: kworker/0:24 Not tainted 5.16.0-rc3-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Workqueue: events sk_psock_destroy > Call Trace: > <TASK> > __dump_stack lib/dump_stack.c:88 [inline] > dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 > print_address_description.constprop.0.cold+0xf/0x320 mm/kasan/report.c:247 > __kasan_report mm/kasan/report.c:433 [inline] > kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 > __bpf_prog_put.constprop.0+0x1dd/0x220 kernel/bpf/syscall.c:1812 > psock_set_prog include/linux/skmsg.h:477 [inline] > psock_progs_drop include/linux/skmsg.h:495 [inline] > sk_psock_destroy+0xad/0x620 net/core/skmsg.c:804 > process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298 > worker_thread+0x658/0x11f0 kernel/workqueue.c:2445 > kthread+0x405/0x4f0 kernel/kthread.c:327 > ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 > </TASK> > > > Memory state around the buggy address: > ffffc90000cf1f00: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 > ffffc90000cf1f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 > >ffffc90000cf2000: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 > ^ > ffffc90000cf2080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 > ffffc90000cf2100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 > ================================================================== > > > --- > This report is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. > > syzbot will keep track of this issue. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. I'll take look some psock issue here.
