On Tue, May 12, 2020 at 06:39:46PM -0400, Rafael Aquini wrote: > Users with SYS_ADMIN capability can add arbitrary taint flags > to the running kernel by writing to /proc/sys/kernel/tainted > or issuing the command 'sysctl -w kernel.tainted=...'. > These interface, however, are open for any integer value > and this might an invalid set of flags being committed to > the tainted_mask bitset. > > This patch introduces a simple way for proc_taint() to ignore > any eventual invalid bit coming from the user input before > committing those bits to the kernel tainted_mask. > > Signed-off-by: Rafael Aquini <aquini@xxxxxxxxxx> Reviewed-by: Luis Chamberlain <mcgrof@xxxxxxxxxx> Luis
