![]() | |||||||||||||
Messages in this thread |
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 majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
| Last update: 2007-04-07 11:57 [from the cache] ©2003-2008 | |||||||||||||