diff options
| author | Dan Rosenberg <drosenberg@vsecurity.com> | 2012-07-30 14:40:26 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-20 10:45:33 -0800 |
| commit | 26fead641f8e2a5052aa3cfc88caf876f0e84941 (patch) | |
| tree | 8441d517c6bb82508196ac15a8f16228446dea82 /Makefile | |
| parent | 374d3a4168761631fe309e2bda8dc3bfb4eadcb6 (diff) | |
lib/vsprintf.c: kptr_restrict: fix pK-error in SysRq show-all-timers(Q)
commit 3715c5309f6d175c3053672b73fd4f73be16fd07 upstream.
When using ALT+SysRq+Q all the pointers are replaced with "pK-error" like
this:
[23153.208033] .base: pK-error
with echo h > /proc/sysrq-trigger it works:
[23107.776363] .base: ffff88023e60d540
The intent behind this behavior was to return "pK-error" in cases where
the %pK format specifier was used in interrupt context, because the
CAP_SYSLOG check wouldn't be meaningful. Clearly this should only apply
when kptr_restrict is actually enabled though.
Reported-by: Stevie Trujillo <stevie.trujillo@gmail.com>
Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Li Zefan <lizefan@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions