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| Filename | Latest commit message | Latest commit date |
|---|---|---|
3fcd75ae29
[ Upstream commit 362b9398c962c9ec563653444e15ef9032ef3a90 ]
When booting up on a Raspberry Pi 4 with Control Flow Integrity checking
enabled, the following warning/panic happens:
[ 1.626435] CFI failure (target: dwc2_set_bcm_params+0x0/0x4):
[ 1.632408] WARNING: CPU: 0 PID: 32 at kernel/cfi.c:30 __cfi_check_fail+0x54/0x5c
[ 1.640021] Modules linked in:
[ 1.643137] CPU: 0 PID: 32 Comm: kworker/0:1 Not tainted 5.8.0-rc6-next-20200724-00051-g89ba619726de #1
[ 1.652693] Hardware name: Raspberry Pi 4 Model B Rev 1.2 (DT)
[ 1.658637] Workqueue: events deferred_probe_work_func
[ 1.663870] pstate: 60000005 (nZCv daif -PAN -UAO BTYPE=--)
[ 1.669542] pc : __cfi_check_fail+0x54/0x5c
[ 1.673798] lr : __cfi_check_fail+0x54/0x5c
[ 1.678050] sp : ffff8000102bbaa0
[ 1.681419] x29: ffff8000102bbaa0 x28: ffffab09e21c7000
[ 1.686829] x27: 0000000000000402 x26: ffff0000f6e7c228
[ 1.692238] x25: 00000000fb7cdb0d x24: 0000000000000005
[ 1.697647] x23: ffffab09e2515000 x22: ffffab09e069a000
[ 1.703055] x21: 4c550309df1cf4c1 x20: ffffab09e2433c60
[ 1.708462] x19: ffffab09e160dc50 x18: ffff0000f6e8cc78
[ 1.713870] x17: 0000000000000041 x16: ffffab09e0bce6f8
[ 1.719278] x15: ffffab09e1c819b7 x14: 0000000000000003
[ 1.724686] x13: 00000000ffffefff x12: 0000000000000000
[ 1.730094] x11: 0000000000000000 x10: 00000000ffffffff
[ 1.735501] x9 : c932f7abfc4bc600 x8 : c932f7abfc4bc600
[ 1.740910] x7 : 077207610770075f x6 : ffff0000f6c38f00
[ 1.746317] x5 : 0000000000000000 x4 : 0000000000000000
[ 1.751723] x3 : 0000000000000000 x2 : 0000000000000000
[ 1.757129] x1 : ffff8000102bb7d8 x0 : 0000000000000032
[ 1.762539] Call trace:
[ 1.765030] __cfi_check_fail+0x54/0x5c
[ 1.768938] __cfi_check+0x5fa6c/0x66afc
[ 1.772932] dwc2_init_params+0xd74/0xd78
[ 1.777012] dwc2_driver_probe+0x484/0x6ec
[ 1.781180] platform_drv_probe+0xb4/0x100
[ 1.785350] really_probe+0x228/0x63c
[ 1.789076] driver_probe_device+0x80/0xc0
[ 1.793247] __device_attach_driver+0x114/0x160
[ 1.797857] bus_for_each_drv+0xa8/0x128
[ 1.801851] __device_attach.llvm.14901095709067289134+0xc0/0x170
[ 1.808050] bus_probe_device+0x44/0x100
[ 1.812044] deferred_probe_work_func+0x78/0xb8
[ 1.816656] process_one_work+0x204/0x3c4
[ 1.820736] worker_thread+0x2f0/0x4c4
[ 1.824552] kthread+0x174/0x184
[ 1.827837] ret_from_fork+0x10/0x18
CFI validates that all indirect calls go to a function with the same
exact function pointer prototype. In this case, dwc2_set_bcm_params
is the target, which has a parameter of type 'struct dwc2_hsotg *',
but it is being implicitly cast to have a parameter of type 'void *'
because that is the set_params function pointer prototype. Make the
function pointer protoype match the definitions so that there is no
more violation.
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.