This is a note to let you know that I've just added the patch titled fs/compat: fix lookup_dcookie() parameter handling to the 3.12-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: fs-compat-fix-lookup_dcookie-parameter-handling.patch and it can be found in the queue-3.12 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From d8d14bd09cddbaf0168d61af638455a26bd027ff Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@xxxxxxxxxx> Date: Wed, 29 Jan 2014 14:05:46 -0800 Subject: fs/compat: fix lookup_dcookie() parameter handling From: Heiko Carstens <heiko.carstens@xxxxxxxxxx> commit d8d14bd09cddbaf0168d61af638455a26bd027ff upstream. Commit d5dc77bfeeab ("consolidate compat lookup_dcookie()") coverted all architectures to the new compat_sys_lookup_dcookie() syscall. The "len" paramater of the new compat syscall must have the type compat_size_t in order to enforce zero extension for architectures where the ABI requires that the caller of a function performed zero and/or sign extension to 64 bit of all parameters. Signed-off-by: Heiko Carstens <heiko.carstens@xxxxxxxxxx> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx> Cc: Hendrik Brueckner <brueckner@xxxxxxxxxxxxxxxxxx> Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/dcookies.c | 2 +- include/linux/compat.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) --- a/fs/dcookies.c +++ b/fs/dcookies.c @@ -204,7 +204,7 @@ out: } #ifdef CONFIG_COMPAT -COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, w0, u32, w1, char __user *, buf, size_t, len) +COMPAT_SYSCALL_DEFINE4(lookup_dcookie, u32, w0, u32, w1, char __user *, buf, compat_size_t, len) { #ifdef __BIG_ENDIAN return sys_lookup_dcookie(((u64)w0 << 32) | w1, buf, len); --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -422,7 +422,7 @@ extern long compat_arch_ptrace(struct ta asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, compat_long_t addr, compat_long_t data); -asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, size_t); +asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t); /* * epoll (fs/eventpoll.c) compat bits follow ... */ Patches currently in stable-queue which might be from heiko.carstens@xxxxxxxxxx are queue-3.12/fs-compat-fix-lookup_dcookie-parameter-handling.patch queue-3.12/compat-fix-sys_fanotify_mark.patch queue-3.12/fs-compat-fix-parameter-handling-for-compat-readv-writev-syscalls.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html