Messages in this thread | | | Date | Wed, 20 Nov 2019 17:25:08 -0800 | Subject | kernel panic: stack is corrupted in vhost_net_ioctl | From | syzbot <> |
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Hello,
syzbot found the following crash on:
HEAD commit: 6c9594bd Merge branch 'for-linus' of git://git.kernel.org/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17059c6ae00000 kernel config: https://syzkaller.appspot.com/x/.config?x=7654f9089a2e8c85 dashboard link: https://syzkaller.appspot.com/bug?extid=f2a62d07a5198c819c7b compiler: clang version 9.0.0 (/home/glider/llvm/clang 80fee25776c2fb61e74c1ecb1a523375c2500b69) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17bacb3ae00000
IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+f2a62d07a5198c819c7b@syzkaller.appspotmail.com
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: vhost_net_ioctl+0x1d8c/0x1dc0 drivers/vhost/net.c:366 CPU: 1 PID: 7993 Comm: syz-executor.0 Not tainted 5.4.0-rc7+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fb/0x318 lib/dump_stack.c:118 panic+0x264/0x7a9 kernel/panic.c:221 __stack_chk_fail+0x1f/0x20 kernel/panic.c:667 vhost_net_ioctl+0x1d8c/0x1dc0 drivers/vhost/net.c:366 do_vfs_ioctl+0x744/0x1730 fs/ioctl.c:46 ksys_ioctl fs/ioctl.c:713 [inline] __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0xe3/0x120 fs/ioctl.c:718 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a639 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f473d635c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000020d7c000 RSI: 000000004008af30 RDI: 0000000000000003 RBP: 000000000075c070 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f473d6366d4 R13: 00000000004c5b18 R14: 00000000004dab78 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..
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