| TITLE: UBSAN: Undefined behaviour in drivers/usb/core/devio.c:LINE |
| |
| [ 4.556968] ================================================================================ |
| [ 4.556972] UBSAN: Undefined behaviour in drivers/usb/core/devio.c:1517:25 |
| [ 4.556975] shift exponent -1 is negative |
| [ 4.556979] CPU: 2 PID: 3624 Comm: usb Not tainted 4.5.0-rc1 #252 |
| [ 4.556981] Hardware name: Apple Inc. MacBookPro10,2/Mac-AFD8A9D944EA4843, BIOS MBP102.88Z.0106.B0A.1509130955 09/13/2015 |
| [ 4.556984] 0000000000000000 0000000000000000 ffffffff845c6528 ffff8802493b3c68 |
| [ 4.556988] ffffffff81b2e7d9 0000000000000007 ffff8802493b3c98 ffff8802493b3c80 |
| [ 4.556992] ffffffff81bcb87d ffffffffffffffff ffff8802493b3d10 ffffffff81bcc1c1 |
| [ 4.556996] Call Trace: |
| [ 4.557004] [<ffffffff81b2e7d9>] dump_stack+0x45/0x6c |
| [ 4.557010] [<ffffffff81bcb87d>] ubsan_epilogue+0xd/0x40 |
| [ 4.557015] [<ffffffff81bcc1c1>] __ubsan_handle_shift_out_of_bounds+0xf1/0x140 |
| [ 4.557030] [<ffffffff822247af>] ? proc_do_submiturb+0x9af/0x2c30 |
| [ 4.557034] [<ffffffff82226794>] proc_do_submiturb+0x2994/0x2c30 |