* UBSAN: Undefined behaviour in drivers/usb/host/ehci-hub.c:877:47
@ 2016-05-12 16:38 Meelis Roos
2016-05-12 17:10 ` Greg Kroah-Hartman
0 siblings, 1 reply; 2+ messages in thread
From: Meelis Roos @ 2016-05-12 16:38 UTC (permalink / raw)
To: Linux Kernel list, linux-usb, Greg Kroah-Hartman, Alan Stern
I am seeing it on multiple different PC-s.
[ 7.837957] ================================================================================
[ 7.837959] UBSAN: Undefined behaviour in drivers/usb/host/ehci-hub.c:877:47
[ 7.837961] index -1 is out of range for type 'u32 [1]'
[ 7.837964] CPU: 3 PID: 213 Comm: systemd-udevd Not tainted 4.6.0-rc6 #202
[ 7.837966] Hardware name: /DQ67OW, BIOS SWQ6710H.86A.0066.2012.1105.1504 11/05/2012
[ 7.837968] ffffc9000001e05c ffffffff8151261d 000000000000002b ffff8802332cf540
[ 7.837971] ffffffffffffffff ffffffff815697a9 ffffffffa01d0080 ffffffff81569e42
[ 7.837974] 0000000000000202 ffffffff8100312d ffff8802332cf630 ffffffffa021fec2
[ 7.837977] Call Trace:
[ 7.837983] [<ffffffff8151261d>] ? dump_stack+0x47/0x6a
[ 7.837987] [<ffffffff815697a9>] ? ubsan_epilogue+0x9/0x40
[ 7.837989] [<ffffffff81569e42>] ? __ubsan_handle_out_of_bounds+0x62/0x70
[ 7.837993] [<ffffffff8100312d>] ? syscall_trace_enter_phase2+0x10d/0x3d0
[ 7.837997] [<ffffffff8169a419>] ? dev_vprintk_emit+0xb9/0x2a0
[ 7.838001] [<ffffffffa01bda03>] ? ehci_hub_control+0xe43/0x10f0 [ehci_hcd]
[ 7.838005] [<ffffffff812b2900>] ? mmu_notifier_unregister+0x60/0x1a0
[ 7.838012] [<ffffffffa01ff5bb>] ? usb_hcd_submit_urb+0x84b/0xcf0 [usbcore]
[ 7.838018] [<ffffffffa02021ae>] ? usb_start_wait_urb+0x5e/0xf0 [usbcore]
[ 7.838024] [<ffffffffa02022fe>] ? usb_control_msg+0xbe/0x100 [usbcore]
[ 7.838030] [<ffffffffa01fa429>] ? hub_probe+0x429/0xf10 [usbcore]
[ 7.838034] [<ffffffff816b0cdb>] ? __pm_runtime_resume+0x4b/0x80
[ 7.838040] [<ffffffffa0208446>] ? usb_probe_interface+0x146/0x3e0 [usbcore]
[ 7.838043] [<ffffffff8169ff07>] ? driver_probe_device+0xf7/0x370
[ 7.838045] [<ffffffff816a0270>] ? __driver_attach+0xf0/0xf0
[ 7.838049] [<ffffffff8169d49e>] ? bus_for_each_drv+0x6e/0xd0
[ 7.838051] [<ffffffff8169fcce>] ? __device_attach+0xbe/0x150
[ 7.838053] [<ffffffff8169eaa5>] ? bus_probe_device+0xb5/0x120
[ 7.838056] [<ffffffff8169bc0c>] ? device_add+0x46c/0x620
[ 7.838061] [<ffffffffa020230e>] ? usb_control_msg+0xce/0x100 [usbcore]
[ 7.838067] [<ffffffffa0205172>] ? usb_set_configuration+0x542/0xb50 [usbcore]
[ 7.838073] [<ffffffffa02166b0>] ? generic_probe+0x30/0x90 [usbcore]
[ 7.838075] [<ffffffff8169ff07>] ? driver_probe_device+0xf7/0x370
[ 7.838077] [<ffffffff816a0270>] ? __driver_attach+0xf0/0xf0
[ 7.838080] [<ffffffff8169d49e>] ? bus_for_each_drv+0x6e/0xd0
[ 7.838082] [<ffffffff8169fcce>] ? __device_attach+0xbe/0x150
[ 7.838084] [<ffffffff8169eaa5>] ? bus_probe_device+0xb5/0x120
[ 7.838087] [<ffffffff8169bc0c>] ? device_add+0x46c/0x620
[ 7.838090] [<ffffffff8166abf0>] ? add_device_randomness+0xc0/0x140
[ 7.838096] [<ffffffffa01f7233>] ? usb_new_device+0x2f3/0xa30 [usbcore]
[ 7.838102] [<ffffffffa01fdaa8>] ? usb_add_hcd+0x678/0xa80 [usbcore]
[ 7.838108] [<ffffffffa0219bc8>] ? usb_hcd_pci_probe+0x488/0x760 [usbcore]
[ 7.838112] [<ffffffff8157dacd>] ? pci_device_probe+0xad/0x150
[ 7.838114] [<ffffffff8169ff07>] ? driver_probe_device+0xf7/0x370
[ 7.838116] [<ffffffff816a022c>] ? __driver_attach+0xac/0xf0
[ 7.838118] [<ffffffff816a0180>] ? driver_probe_device+0x370/0x370
[ 7.838121] [<ffffffff8169d3c8>] ? bus_for_each_dev+0x68/0xb0
[ 7.838123] [<ffffffff8169ee69>] ? bus_add_driver+0x159/0x2b0
[ 7.838126] [<ffffffffa01ac000>] ? 0xffffffffa01ac000
[ 7.838128] [<ffffffff816a100c>] ? driver_register+0x6c/0x110
[ 7.838130] [<ffffffff810003c8>] ? do_one_initcall+0x98/0x230
[ 7.838132] [<ffffffff812be782>] ? kmem_cache_alloc_trace+0x1c2/0x2f0
[ 7.838136] [<ffffffff8122187e>] ? do_init_module+0x95/0x264
[ 7.838139] [<ffffffff8116db33>] ? load_module+0x1e23/0x2fa0
[ 7.838142] [<ffffffff8116a480>] ? m_show+0x200/0x200
[ 7.838146] [<ffffffff812f48f4>] ? kernel_read_file_from_fd+0x44/0x70
[ 7.838149] [<ffffffff8116ee72>] ? SYSC_finit_module+0xa2/0xb0
[ 7.838153] [<ffffffff81987a9f>] ? entry_SYSCALL_64_fastpath+0x17/0x93
[ 7.838154] ================================================================================
--
Meelis Roos (mroos@linux.ee)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: UBSAN: Undefined behaviour in drivers/usb/host/ehci-hub.c:877:47
2016-05-12 16:38 UBSAN: Undefined behaviour in drivers/usb/host/ehci-hub.c:877:47 Meelis Roos
@ 2016-05-12 17:10 ` Greg Kroah-Hartman
0 siblings, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2016-05-12 17:10 UTC (permalink / raw)
To: Meelis Roos; +Cc: Linux Kernel list, linux-usb, Alan Stern
On Thu, May 12, 2016 at 07:38:00PM +0300, Meelis Roos wrote:
> I am seeing it on multiple different PC-s.
>
> [ 7.837957] ================================================================================
> [ 7.837959] UBSAN: Undefined behaviour in drivers/usb/host/ehci-hub.c:877:47
And it's a bug in UBSAN, please see the email archives, it keeps coming
up.
sorry,
greg k-h
^ permalink raw reply [flat|nested] 2+ messages in thread
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