Vasiliy Kulikov 5d46f32667 staging: istallion: fix arbitrary kernel memory reads/writes ... stli_brdstats is defined as global variable. After de-BKL-ization in the patch b4eda9cb48 an access to the variable is not serialized anymore. This leads to the race window between the check and the use in stli_getbrdstats(): if (copy_from_user(&stli_brdstats, bp, sizeof(combrd_t))) return -EFAULT; if (stli_brdstats.brd >= STL_MAXBRDS) <<< return -ENODEV; brdp = stli_brds[stli_brdstats.brd]; <<< If one process calls COM_GETBRDSTATS ioctl() with sane .brd, second process calls COM_GETBRDSTATS ioctl() with invalid .brd, and the second process' copy_from_user() executes exactly between the check and stli_brds[] indexation of the first process, then the first process gets contents of memory at *stli_brds[stli_brdstats.brd] address. Also the resulting .nrpanels field may be too big, in this case stli_brdstats.panels array overflows. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2011-04-25 16:45:22 -07:00
..
ip2	Fix common misspellings	2011-03-31 11:26:23 -03:00
cd1865.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
digi1.h
digiFep1.h
digiPCI.h
epca.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
epca.h
epcaconfig.h
istallion.c	staging: istallion: fix arbitrary kernel memory reads/writes	2011-04-25 16:45:22 -07:00
Kconfig
Makefile
riscom8.c
riscom8.h
riscom8_reg.h
serial167.c
specialix.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
specialix_io8.h	Fix common misspellings	2011-03-31 11:26:23 -03:00
stallion.c
TODO