Hello, syzbot found the following issue on: HEAD commit: ff8744b5 Merge branch '100GbE' of git://git.kernel.org/pub.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=163cc5dc300000 kernel config: https://syzkaller.appspot.com/x/.config?x=7cf9abab1592f017 dashboard link: https://syzkaller.appspot.com/bug?extid=20191dc583eff8602d2d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14a81190300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1417f5bfd00000 The issue was bisected to: commit 2481104fe98d5b016fdd95d649b1235f21e491ba Author: Ard Biesheuvel <ardb@xxxxxxxxxx> Date: Thu Dec 31 16:41:55 2020 +0000 crypto: x86/aes-ni-xts - rewrite and drop indirections via glue helper bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=164ee60c300000 final oops: https://syzkaller.appspot.com/x/report.txt?x=154ee60c300000 console output: https://syzkaller.appspot.com/x/log.txt?x=114ee60c300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+20191dc583eff8602d2d@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 2481104fe98d ("crypto: x86/aes-ni-xts - rewrite and drop indirections via glue helper") RBP: 00007ffd23488340 R08: 0000000000000000 R09: 00007ffd234884c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 R13: 0000000000000000 R14: 00000000004ae018 R15: 0000000000400488 syz-executor607[8444]: segfault at 4b0e48 ip 0000000000408e15 sp 00007ffd234882e0 error 7 in syz-executor607098311[401000+82000] Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c 80 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f BUG: scheduling while atomic: syz-executor607/8444/0x00000002 no locks held by syz-executor607/8444. Modules linked in: Preemption disabled at: [<ffffffff812aa3e4>] kernel_fpu_begin_mask+0x64/0x260 arch/x86/kernel/fpu/core.c:126 Kernel panic - not syncing: scheduling while atomic CPU: 1 PID: 8444 Comm: syz-executor607 Not tainted 5.13.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x141/0x1d7 lib/dump_stack.c:120 panic+0x306/0x73d kernel/panic.c:231 __schedule_bug.cold+0x10c/0x143 kernel/sched/core.c:4880 schedule_debug kernel/sched/core.c:4909 [inline] __schedule+0x19df/0x23e0 kernel/sched/core.c:5038 schedule+0xcf/0x270 kernel/sched/core.c:5226 exit_to_user_mode_loop kernel/entry/common.c:163 [inline] exit_to_user_mode_prepare+0x14d/0x290 kernel/entry/common.c:209 irqentry_exit_to_user_mode+0x5/0x40 kernel/entry/common.c:315 exc_page_fault+0xc6/0x180 arch/x86/mm/fault.c:1534 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:577 RIP: 0033:0x408e15 Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c 80 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f RSP: 002b:00007ffd234882e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00000000004ae108 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 00000000004ae108 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffd234884c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00000000004ae018 R15: 0000000000400488 Kernel Offset: disabled Rebooting in 86400 seconds.. --- 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. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
