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| Filename | Latest commit message | Latest commit date |
|---|---|---|
9891e5c73c
commit e8fb5bc76eb86437ab87002d4a36d6da02165654 upstream.
When the host controller is not responding, all URBs queued to all
endpoints need to be killed. This can cause a kernel panic if we
dereference an invalid endpoint.
Fix this by using xhci_get_virt_ep() helper to find the endpoint and
checking if the endpoint is valid before dereferencing it.
[233311.853271] xhci-hcd xhci-hcd.1.auto: xHCI host controller not responding, assume dead
[233311.853393] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000e8
[233311.853964] pc : xhci_hc_died+0x10c/0x270
[233311.853971] lr : xhci_hc_died+0x1ac/0x270
[233311.854077] Call trace:
[233311.854085] xhci_hc_died+0x10c/0x270
[233311.854093] xhci_stop_endpoint_command_watchdog+0x100/0x1a4
[233311.854105] call_timer_fn+0x50/0x2d4
[233311.854112] expire_timers+0xac/0x2e4
[233311.854118] run_timer_softirq+0x300/0xabc
[233311.854127] __do_softirq+0x148/0x528
[233311.854135] irq_exit+0x194/0x1a8
[233311.854143] __handle_domain_irq+0x164/0x1d0
[233311.854149] gic_handle_irq.22273+0x10c/0x188
[233311.854156] el1_irq+0xfc/0x1a8
[233311.854175] lpm_cpuidle_enter+0x25c/0x418 [msm_pm]
[233311.854185] cpuidle_enter_state+0x1f0/0x764
[233311.854194] do_idle+0x594/0x6ac
[233311.854201] cpu_startup_entry+0x7c/0x80
[233311.854209] secondary_start_kernel+0x170/0x198
Fixes:
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.