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| author | Dan Rosenberg <drosenberg@vsecurity.com> | 2011-04-29 15:48:07 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-04-29 15:53:14 +0100 |
| commit | 0f22072ab50cac7983f9660d33974b45184da4f9 (patch) | |
| tree | 59c175c63787b9b0424c40064df02cda7fe72a24 /fs | |
| parent | 408133e9dca2b94c64b917b144ec816df913a94e (diff) | |
| download | linux-0f22072ab50cac7983f9660d33974b45184da4f9.tar.gz linux-0f22072ab50cac7983f9660d33974b45184da4f9.tar.bz2 linux-0f22072ab50cac7983f9660d33974b45184da4f9.zip | |
ARM: 6891/1: prevent heap corruption in OABI semtimedop
When CONFIG_OABI_COMPAT is set, the wrapper for semtimedop does not
bound the nsops argument. A sufficiently large value will cause an
integer overflow in allocation size, followed by copying too much data
into the allocated buffer. Fix this by restricting nsops to SEMOPM.
Untested.
Cc: stable@kernel.org
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions