The patch titled
Subject: exec: increase BINPRM_BUF_SIZE to 256
has been added to the -mm tree. Its filename is
exec-increase-binprm_buf_size-to-256.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/exec-increase-binprm_buf_size-to-256.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/exec-increase-binprm_buf_size-to-256.patch
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------------------------------------------------------
From: Oleg Nesterov <oleg@xxxxxxxxxx>
Subject: exec: increase BINPRM_BUF_SIZE to 256
Large enterprise clients often run applications out of networked file
systems where the IT mandated layout of project volumes can end up leading
to paths that are longer than 128 characters. Bumping this up to the next
order of two solves this problem in all but the most egregious case while
still fitting into a 512b slab.
Link: http://lkml.kernel.org/r/20181112160956.GA28472@xxxxxxxxxx
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Reported-by: Ben Woodard <woodard@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/uapi/linux/binfmts.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/uapi/linux/binfmts.h~exec-increase-binprm_buf_size-to-256
+++ a/include/uapi/linux/binfmts.h
@@ -16,6 +16,6 @@ struct pt_regs;
#define MAX_ARG_STRINGS 0x7FFFFFFF
/* sizeof(linux_binprm->buf) */
-#define BINPRM_BUF_SIZE 128
+#define BINPRM_BUF_SIZE 256
#endif /* _UAPI_LINUX_BINFMTS_H */
_
Patches currently in -mm which might be from oleg@xxxxxxxxxx are
exec-load_script-dont-blindly-truncate-shebang-string.patch
exec-increase-binprm_buf_size-to-256.patch
