commit: 67703d70136e967ff9c911645888d1996c1b5f19 Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> AuthorDate: Fri May 27 12:27:43 2022 +0000 Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> CommitDate: Fri May 27 12:27:43 2022 +0000 URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=67703d70
exec: increase BINPRM_BUF_SIZE to 256 Bug: https://bugs.gentoo.org/847655 Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org> 0000_README | 4 +++ 1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch | 51 +++++++++++++++++++++++++++ 2 files changed, 55 insertions(+) diff --git a/0000_README b/0000_README index ae4affb3..3e951bdc 100644 --- a/0000_README +++ b/0000_README @@ -1183,6 +1183,10 @@ Patch: 1700_ia64_fix_ptrace.patch From: https://patchwork.kernel.org/patch/10198159/ Desc: ia64: fix ptrace(PTRACE_GETREGS) (unbreaks strace, gdb). +Patch: 1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch +From: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/exec.c?id=6eb3c3d0a52dca337e327ae8868ca1f44a712e02 +Desc: exec: increase BINPRM_BUF_SIZE to 256 + Patch: 2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch From: https://lore.kernel.org/linux-bluetooth/20190522070540.48895-1-mar...@holtmann.org/raw Desc: Bluetooth: Check key sizes only when Secure Simple Pairing is enabled. See bug #686758 diff --git a/1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch b/1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch new file mode 100644 index 00000000..2be01c77 --- /dev/null +++ b/1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch @@ -0,0 +1,51 @@ +From 6eb3c3d0a52dca337e327ae8868ca1f44a712e02 Mon Sep 17 00:00:00 2001 +From: Oleg Nesterov <o...@redhat.com> +Date: Thu, 7 Mar 2019 16:29:26 -0800 +Subject: [PATCH] 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. + +[o...@redhat.com: update comment, per Kees] +Link: http://lkml.kernel.org/r/20181112160956.ga28...@redhat.com +Signed-off-by: Oleg Nesterov <o...@redhat.com> +Reported-by: Ben Woodard <wood...@redhat.com> +Reviewed-by: Andrew Morton <a...@linux-foundation.org> +Acked-by: Michal Hocko <mho...@suse.com> +Acked-by: Kees Cook <keesc...@chromium.org> +Cc: "Eric W. Biederman" <ebied...@xmission.com> +Signed-off-by: Andrew Morton <a...@linux-foundation.org> +Signed-off-by: Linus Torvalds <torva...@linux-foundation.org> +--- + fs/exec.c | 2 +- + include/uapi/linux/binfmts.h | 2 +- + 2 files changed, 2 insertions(+), 2 deletions(-) + +diff --git a/fs/exec.c b/fs/exec.c +index bf0ace3841ad6e..2e0033348d8e10 100644 +--- a/fs/exec.c ++++ b/fs/exec.c +@@ -1563,7 +1563,7 @@ static void bprm_fill_uid(struct linux_binprm *bprm) + + /* + * Fill the binprm structure from the inode. +- * Check permissions, then read the first 128 (BINPRM_BUF_SIZE) bytes ++ * Check permissions, then read the first BINPRM_BUF_SIZE bytes + * + * This may be called multiple times for binary chains (scripts for example). + */ +diff --git a/include/uapi/linux/binfmts.h b/include/uapi/linux/binfmts.h +index 4abad03a885305..689025d9c185b0 100644 +--- a/include/uapi/linux/binfmts.h ++++ b/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 */
