Jakub Jelinek a écrit :
On Sat, Apr 07, 2007 at 10:43:39AM +0200, Eric Dumazet wrote:
get_futex_key() does a check against sizeof(u32) regardless of futex being 64bits or not.
So it is possible a 64bit futex spans two pages of memory...
That would be a user bug. 32-bit futexes have to be 32-bit aligned, 64-bit
futexes have to be 64-bit aligned.
I am not sure what you want to say.
User doing sys_futex64(0x......FFC, FUTEX_WAKE_OP, ...) and crashing kernel or
corrupting data is ok because its a user bug ?
User is allowed to do anything, kernel must check and protect innocents.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
