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Ian Abbott eb6719481d misc: genwqe: check for error from get_user_pages_fast() ... commit cf35d6e047 upstream. `genwqe_user_vmap()` calls `get_user_pages_fast()` and if the return value is less than the number of pages requested, it frees the pages and returns an error (`-EFAULT`). However, it fails to consider a negative error return value from `get_user_pages_fast()`. In that case, the test `if (rc < m->nr_pages)` will be false (due to promotion of `rc` to a large `unsigned int`) and the code will continue on to call `genwqe_map_pages()` with an invalid list of page pointers. Fix it by bailing out if `get_user_pages_fast()` returns a negative error value. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Luis Henriques <luis.henriques@canonical.com>		History 2015-01-05 13:48:39 +00:00
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card_base.c	GenWQE PCI support, health monitoring and recovery	2013-12-18 16:51:15 -08:00
card_base.h	GenWQE: Fix multithreading problems	2014-04-16 12:12:39 -07:00
card_ddcb.c	GenWQE: Ensure rc is not returning an uninitialized value	2014-04-16 12:12:39 -07:00
card_ddcb.h	GenWQE Character device and DDCB queue	2013-12-18 16:51:15 -08:00
card_debugfs.c	misc: genwqe: Fix format string mismatch in card_debugfs.c	2014-05-03 19:25:17 -04:00
card_dev.c	GenWQE: Fix multithreading problems	2014-04-16 12:12:39 -07:00
card_sysfs.c	GenWQE Sysfs interfaces	2013-12-18 16:51:15 -08:00
card_utils.c	misc: genwqe: check for error from get_user_pages_fast()	2015-01-05 13:48:39 +00:00
genwqe_driver.h	GenWQE: Increase driver version number	2014-04-16 12:12:39 -07:00
Kconfig	GenWQE Enable driver	2013-12-18 16:51:15 -08:00
Makefile	GenWQE Enable driver	2013-12-18 16:51:15 -08:00