On Thu, Mar 26, 2020 at 12:34 PM syzbot <syzbot+694d40a36a6452d77f36@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: e17994d1 usb: core: kcov: collect coverage from usb comple.. > git tree: https://github.com/google/kasan.git usb-fuzzer > console output: https://syzkaller.appspot.com/x/log.txt?x=1409ca5be00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=5d64370c438bc60 > dashboard link: https://syzkaller.appspot.com/bug?extid=694d40a36a6452d77f36 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=122d48f3e00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=122511e5e00000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+694d40a36a6452d77f36@xxxxxxxxxxxxxxxxxxxxxxxxx > > ================================================================== > BUG: KASAN: slab-out-of-bounds in htc_process_conn_rsp drivers/net/wireless/ath/ath9k/htc_hst.c:131 [inline] > BUG: KASAN: slab-out-of-bounds in ath9k_htc_rx_msg+0xa25/0xaf0 drivers/net/wireless/ath/ath9k/htc_hst.c:443 > Write of size 2 at addr ffff8881ced8a7f0 by task swapper/0/0 > > CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc5-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 > Call Trace: > <IRQ> > __dump_stack lib/dump_stack.c:77 [inline] > dump_stack+0xef/0x16e lib/dump_stack.c:118 > print_address_description.constprop.0.cold+0xd3/0x314 mm/kasan/report.c:374 > __kasan_report.cold+0x37/0x77 mm/kasan/report.c:506 > kasan_report+0xe/0x20 mm/kasan/common.c:641 > htc_process_conn_rsp drivers/net/wireless/ath/ath9k/htc_hst.c:131 [inline] > ath9k_htc_rx_msg+0xa25/0xaf0 drivers/net/wireless/ath/ath9k/htc_hst.c:443 > ath9k_hif_usb_reg_in_cb+0x1ba/0x630 drivers/net/wireless/ath/ath9k/hif_usb.c:718 > __usb_hcd_giveback_urb+0x29a/0x550 drivers/usb/core/hcd.c:1650 > usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716 > dummy_timer+0x1258/0x32ae drivers/usb/gadget/udc/dummy_hcd.c:1966 > > > --- > This bug 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 bug report. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > syzbot can test patches for this bug, for details see: > https://goo.gl/tpsmEJ#testing-patches #syz dup: KASAN: use-after-free Write in ath9k_htc_rx_msg
