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authorJeff Mahoney <jeffm@suse.com>2009-05-11 14:25:34 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-05-11 12:18:06 -0700
commit2b79bc4f7ebbd5af3c8b867968f9f15602d5f802 (patch)
tree135f195357e108b1cc7b5ef0a09d1e32b79fcce0 /fs/binfmt_elf.c
parentfd18de50b9e7965f93d231e7390436fb8900c0e6 (diff)
dup2: Fix return value with oldfd == newfd and invalid fd
The return value of dup2 when oldfd == newfd and the fd isn't valid is not getting properly sign extended. We end up with 4294967287 instead of -EBADF. I've reproduced this on SLE11 (2.6.27.21), openSUSE Factory (2.6.29-rc5), and Ubuntu 9.04 (2.6.28). This patch uses a signed int for the error value so it is properly extended. Commit 6c5d0512a091480c9f981162227fdb1c9d70e555 introduced this regression. Reported-by: Jiri Dluhos <jdluhos@novell.com> Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/binfmt_elf.c')
0 files changed, 0 insertions, 0 deletions