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| H A D | iov_iter.c | dd254f5a Mon May 09 10:54:48 CDT 2016 Al Viro <viro@zeniv.linux.org.uk> fold checks into iterate_and_advance()
they are open-coded in all users except iov_iter_advance(), and there
they wouldn't be a bad idea either - as it is, iov_iter_advance(i, 0)
ends up dereferencing potentially past the end of iovec array. It
doesn't do anything with the value it reads, and very unlikely to
trigger an oops on dereference, but it is not impossible.
Reported-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
dd254f5a Mon May 09 10:54:48 CDT 2016 Al Viro <viro@zeniv.linux.org.uk> fold checks into iterate_and_advance()
they are open-coded in all users except iov_iter_advance(), and there
they wouldn't be a bad idea either - as it is, iov_iter_advance(i, 0)
ends up dereferencing potentially past the end of iovec array. It
doesn't do anything with the value it reads, and very unlikely to
trigger an oops on dereference, but it is not impossible.
Reported-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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