Linus Torvalds wrote:
On Wed, 4 Jan 2006, Linus Torvalds wrote:
On Tue, 3 Jan 2006, H. Peter Anvin wrote:
(I set the limit to 2^31-PAGE_CACHE_SIZE so that a transfer that starts at the
beginning of the file will continue to be page-aligned.)
Ok, this patch looks ok, if it's confirmed to unbreak apache.
Actually, looking closer, this patch does the wrong thing for a size_t
that is negative in ssize_t (which is technically "undefined behaviour" in
POSIX, but turning it into a big positive number is objectively worse than
returning -EINVAL).
OK, that's a fair cop. I agree. In fact, for readv/writev(), POSIX
does specify:
"If the sum of the iov_len values is greater than {SSIZE_MAX}, the
operation shall fail and no data shall be tranferred."
... which is good precedence for doing so for all values.
So, what system calls are affected? sendfile, [p]read[v], [p]write[v],
send*, recv*, any others?
-hpa
-
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]
