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commit: b461d2fb4478a277ea5b531efba262d22b60e15d |
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Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
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AuthorDate: Fri May 27 12:40:43 2022 +0000 |
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Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> |
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CommitDate: Fri May 27 12:40:43 2022 +0000 |
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URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=b461d2fb |
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|
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exec: increase BINPRM_BUF_SIZE to 256 |
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|
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https://bugs.gentoo.org/847655 |
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|
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Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org> |
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|
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0000_README | 4 +++ |
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1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch | 51 +++++++++++++++++++++++++++ |
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2 files changed, 55 insertions(+) |
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|
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diff --git a/0000_README b/0000_README |
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index 3ad05b69..81ae8c32 100644 |
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--- a/0000_README |
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+++ b/0000_README |
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@@ -1323,6 +1323,10 @@ Patch: 1701_ia64_fix_ptrace.patch |
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From: https://patchwork.kernel.org/patch/10198159/ |
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Desc: ia64: fix ptrace(PTRACE_GETREGS) (unbreaks strace, gdb). |
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|
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+Patch: 1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch |
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+From: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/exec.c?id=6eb3c3d0a52dca337e327ae8868ca1f44a712e02 |
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+Desc: exec: increase BINPRM_BUF_SIZE to 256 |
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+ |
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Patch: 2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch |
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From: https://lore.kernel.org/linux-bluetooth/20190522070540.48895-1-marcel@××××××××.org/raw |
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Desc: Bluetooth: Check key sizes only when Secure Simple Pairing is enabled. See bug #686758 |
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|
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diff --git a/1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch b/1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch |
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new file mode 100644 |
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index 00000000..2be01c77 |
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--- /dev/null |
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+++ b/1900_fs-increase-BINPRM-BUF-SIZE-to-256.patch |
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@@ -0,0 +1,51 @@ |
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+From 6eb3c3d0a52dca337e327ae8868ca1f44a712e02 Mon Sep 17 00:00:00 2001 |
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+From: Oleg Nesterov <oleg@××××××.com> |
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+Date: Thu, 7 Mar 2019 16:29:26 -0800 |
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+Subject: [PATCH] exec: increase BINPRM_BUF_SIZE to 256 |
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+ |
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+Large enterprise clients often run applications out of networked file |
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+systems where the IT mandated layout of project volumes can end up |
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+leading to paths that are longer than 128 characters. Bumping this up |
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+to the next order of two solves this problem in all but the most |
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+egregious case while still fitting into a 512b slab. |
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+ |
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+[oleg@××××××.com: update comment, per Kees] |
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+Link: http://lkml.kernel.org/r/20181112160956.GA28472@××××××.com |
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+Signed-off-by: Oleg Nesterov <oleg@××××××.com> |
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+Reported-by: Ben Woodard <woodard@××××××.com> |
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+Reviewed-by: Andrew Morton <akpm@××××××××××××××××.org> |
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+Acked-by: Michal Hocko <mhocko@××××.com> |
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+Acked-by: Kees Cook <keescook@××××××××.org> |
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+Cc: "Eric W. Biederman" <ebiederm@××××××××.com> |
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+Signed-off-by: Andrew Morton <akpm@××××××××××××××××.org> |
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+Signed-off-by: Linus Torvalds <torvalds@××××××××××××××××.org> |
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+--- |
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+ fs/exec.c | 2 +- |
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+ include/uapi/linux/binfmts.h | 2 +- |
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+ 2 files changed, 2 insertions(+), 2 deletions(-) |
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+ |
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+diff --git a/fs/exec.c b/fs/exec.c |
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+index bf0ace3841ad6e..2e0033348d8e10 100644 |
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+--- a/fs/exec.c |
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++++ b/fs/exec.c |
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+@@ -1563,7 +1563,7 @@ static void bprm_fill_uid(struct linux_binprm *bprm) |
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+ |
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+ /* |
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+ * Fill the binprm structure from the inode. |
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+- * Check permissions, then read the first 128 (BINPRM_BUF_SIZE) bytes |
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++ * Check permissions, then read the first BINPRM_BUF_SIZE bytes |
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+ * |
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+ * This may be called multiple times for binary chains (scripts for example). |
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+ */ |
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+diff --git a/include/uapi/linux/binfmts.h b/include/uapi/linux/binfmts.h |
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+index 4abad03a885305..689025d9c185b0 100644 |
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+--- a/include/uapi/linux/binfmts.h |
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++++ b/include/uapi/linux/binfmts.h |
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+@@ -16,6 +16,6 @@ struct pt_regs; |
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+ #define MAX_ARG_STRINGS 0x7FFFFFFF |
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+ |
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+ /* sizeof(linux_binprm->buf) */ |
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+-#define BINPRM_BUF_SIZE 128 |
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++#define BINPRM_BUF_SIZE 256 |
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+ |
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+ #endif /* _UAPI_LINUX_BINFMTS_H */ |