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| Filename | Latest commit message | Latest commit date |
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1e3ad91cb6
[ Upstream commit 42933c8aa14be1caa9eda41f65cde8a3a95d3e39 ] This patch fixes the following issues: 1. memstick_free_host() will free the host, so the use of ms_dev(host) after it will be a problem. To fix this, move memstick_free_host() after when we are done with ms_dev(host). 2. In rtsx_usb_ms_drv_remove(), pm need to be disabled before we remove and free host otherwise memstick_check will be called and UAF will happen. [ 11.351173] BUG: KASAN: use-after-free in rtsx_usb_ms_drv_remove+0x94/0x140 [rtsx_usb_ms] [ 11.357077] rtsx_usb_ms_drv_remove+0x94/0x140 [rtsx_usb_ms] [ 11.357376] platform_remove+0x2a/0x50 [ 11.367531] Freed by task 298: [ 11.368537] kfree+0xa4/0x2a0 [ 11.368711] device_release+0x51/0xe0 [ 11.368905] kobject_put+0xa2/0x120 [ 11.369090] rtsx_usb_ms_drv_remove+0x8c/0x140 [rtsx_usb_ms] [ 11.369386] platform_remove+0x2a/0x50 [ 12.038408] BUG: KASAN: use-after-free in __mutex_lock.isra.0+0x3ec/0x7c0 [ 12.045432] mutex_lock+0xc9/0xd0 [ 12.046080] memstick_check+0x6a/0x578 [memstick] [ 12.046509] process_one_work+0x46d/0x750 [ 12.052107] Freed by task 297: [ 12.053115] kfree+0xa4/0x2a0 [ 12.053272] device_release+0x51/0xe0 [ 12.053463] kobject_put+0xa2/0x120 [ 12.053647] rtsx_usb_ms_drv_remove+0xc4/0x140 [rtsx_usb_ms] [ 12.053939] platform_remove+0x2a/0x50 Signed-off-by: Tong Zhang <ztong0001@gmail.com> Co-developed-by: Ulf Hansson <ulf.hansson@linaro.org> Link: https://lore.kernel.org/r/20210511163944.1233295-1-ztong0001@gmail.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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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.