diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-09-07 18:22:28 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-01-03 04:33:35 +0000 |
| commit | b5c70f452589114e6a551803bf312eed1b57f964 (patch) | |
| tree | 1e57c8fa12e52f8dd9c51a3957a274e3fa82a7a3 /net/lapb/lapb_timer.c | |
| parent | 960c9d696b30cfed659cd56d4c7f1bfac7d9c424 (diff) | |
ARM: 7527/1: uaccess: explicitly check __user pointer when !CPU_USE_DOMAINS
commit 8404663f81d212918ff85f493649a7991209fa04 upstream.
The {get,put}_user macros don't perform range checking on the provided
__user address when !CPU_HAS_DOMAINS.
This patch reworks the out-of-line assembly accessors to check the user
address against a specified limit, returning -EFAULT if is is out of
range.
[will: changed get_user register allocation to match put_user]
[rmk: fixed building on older ARM architectures]
Reported-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[bwh: Backported to 3.2: TUSER() was called T()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions