https://github.com/torvalds/linux
Revision 6f3c4fb6d05e63c9c6d8968302491c3a5457be61 authored by Clemens Gruber on 05 September 2016, 17:29:58 UTC, committed by Peter Chen on 09 September 2016, 09:19:57 UTC
Problems with the signal integrity of the high speed USB data lines or noise on reference ground lines can cause the i.MX6 USB controller to violate USB specs and exhibit unexpected behavior. It was observed that USBi_UI interrupts were triggered first and when isr_setup_status_phase was called, ci->status was NULL, which lead to a NULL pointer dereference kernel panic. This patch fixes the kernel panic, emits a warning once and returns -EPIPE to halt the device and let the host get stalled. It also adds a comment to point people, who are experiencing this issue, to their USB hardware design. Cc: <stable@vger.kernel.org> #4.1+ Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com> Signed-off-by: Peter Chen <peter.chen@nxp.com>
1 parent c4e9417
Tip revision: 6f3c4fb6d05e63c9c6d8968302491c3a5457be61 authored by Clemens Gruber on 05 September 2016, 17:29:58 UTC
usb: chipidea: udc: fix NULL ptr dereference in isr_setup_status_phase
usb: chipidea: udc: fix NULL ptr dereference in isr_setup_status_phase
Tip revision: 6f3c4fb
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 31 bytes |
| .gitignore | -rw-r--r-- | 1.3 KB |
| .mailmap | -rw-r--r-- | 7.1 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 95.5 KB |
| Kbuild | -rw-r--r-- | 2.8 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 362.6 KB |
| Makefile | -rw-r--r-- | 56.9 KB |
| README | -rw-r--r-- | 18.1 KB |
| REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
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