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authorKees Cook <keescook@chromium.org>2019-02-18 16:36:48 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-02-18 16:49:36 -0800
commitb5372fe5dc84235dbe04998efdede3c4daa866a9 (patch)
tree75ca80d49613a8daf9b2f59707fb051eb1e545f6 /net
parent301e361072e56a6d6afbf952ae5e746dc8bbb865 (diff)
exec: load_script: Do not exec truncated interpreter path
Commit 8099b047ecc4 ("exec: load_script: don't blindly truncate shebang string") was trying to protect against a confused exec of a truncated interpreter path. However, it was overeager and also refused to truncate arguments as well, which broke userspace, and it was reverted. This attempts the protection again, but allows arguments to remain truncated. In an effort to improve readability, helper functions and comments have been added. Co-developed-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Samuel Dionne-Riel <samuel@dionne-riel.com> Cc: Richard Weinberger <richard.weinberger@gmail.com> Cc: Graham Christensen <graham@grahamc.com> Cc: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions