On Wed, May 22, 2019 at 08:58:05AM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: af8f3fb7 net: stmmac: dma channel control register need to.. > git tree: net > console output: https://syzkaller.appspot.com/x/log.txt?x=17c2d418a00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=fc045131472947d7 > dashboard link: https://syzkaller.appspot.com/bug?extid=df0d4ec12332661dd1f9 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15b53ce4a00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14b0aa52a00000 > > The bug was bisected to: > > commit f295b3ae9f5927e084bd5decdff82390e3471801 > Author: Vakul Garg <vakul.garg@xxxxxxx> > Date: Wed Mar 20 02:03:36 2019 +0000 > > net/tls: Add support of AES128-CCM based ciphers > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16915282a00000 > final crash: https://syzkaller.appspot.com/x/report.txt?x=15915282a00000 > console output: https://syzkaller.appspot.com/x/log.txt?x=11915282a00000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+df0d4ec12332661dd1f9@xxxxxxxxxxxxxxxxxxxxxxxxx > Fixes: f295b3ae9f59 ("net/tls: Add support of AES128-CCM based ciphers") > > ------------[ cut here ]------------ > kernel BUG at include/linux/scatterlist.h:97! > invalid opcode: 0000 [#1] PREEMPT SMP KASAN > CPU: 1 PID: 8868 Comm: syz-executor428 Not tainted 5.2.0-rc1+ #21 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > RIP: 0010:sg_assign_page include/linux/scatterlist.h:97 [inline] > RIP: 0010:sg_set_page include/linux/scatterlist.h:119 [inline] > RIP: 0010:sk_msg_page_add include/linux/skmsg.h:246 [inline] > RIP: 0010:tls_sw_do_sendpage net/tls/tls_sw.c:1171 [inline] > RIP: 0010:tls_sw_sendpage+0xd63/0xf50 net/tls/tls_sw.c:1230 Hi Vakul, when are you planning to fix this? - Eric
