On Thu, Nov 22, 2018 at 04:59:24PM +0100, Michael Kerrisk (man-pages) wrote: > Hi Eugene, > > On Wed, 21 Nov 2018 at 17:07, Eugene Syromiatnikov <esyr@xxxxxxxxxx> wrote: > > > > Increase of BINPRM_BUF_SIZE to 256 increases the limit on the possible > > interpreter line length for scripts to 255. > > I don't see this in the kernel source tree? Could you point me at the > right source file / git commit? Sorry, it's a corresponding man page update for a proposed kernel change[1][2], and I failed to Cc: all the related parties properly. [1] https://lkml.org/lkml/2018/11/12/2330 [2] https://lkml.org/lkml/2018/11/12/2328 > Thanks, > > Michael > > > Signed-off-by: Eugene Syromiatnikov <esyr@xxxxxxxxxx> > > --- > > man2/execve.2 | 5 +++-- > > 1 file changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/man2/execve.2 b/man2/execve.2 > > index d2bb861..f4e37d6 100644 > > --- a/man2/execve.2 > > +++ b/man2/execve.2 > > @@ -633,8 +633,9 @@ prototype: > > .in > > .\" > > .SS Interpreter scripts > > -A maximum line length of 127 characters is allowed for the first line in > > -an interpreter script. > > +Before Linux 4.20, a maximum line length of 127 characters was allowed > > +for the first line in an interpreter script. > > +In Linux 4.20 onwards, this limit was increased up to 255 characters. > > .PP > > The semantics of the > > .I optional-arg > > -- > > 2.1.4 > > > > > -- > Michael Kerrisk > Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ > Linux/UNIX System Programming Training: http://man7.org/training/
