git: 452f261b8c8e - stable/14 - kernel: Clarify kern.elfNN.nxstack sysctl description

From: Ed Maste <emaste_at_FreeBSD.org>
Date: Tue, 07 Jan 2025 18:48:48 UTC
The branch stable/14 has been updated by emaste:

URL: https://cgit.FreeBSD.org/src/commit/?id=452f261b8c8ed7dbc90976cf776c35915f2d765f

commit 452f261b8c8ed7dbc90976cf776c35915f2d765f
Author:     Ed Maste <emaste@FreeBSD.org>
AuthorDate: 2024-12-27 20:42:17 +0000
Commit:     Ed Maste <emaste@FreeBSD.org>
CommitDate: 2025-01-07 18:48:32 +0000

    kernel: Clarify kern.elfNN.nxstack sysctl description
    
    The nxstack sysctl controls processing of the PT_GNU_STACK segment,
    not directly whether or not the stack is executable.
    
    Reviewed by:    kib, shurd
    Sponsored by:   The FreeBSD Foundation
    Differential Revision: https://reviews.freebsd.org/D48221
    
    (cherry picked from commit 837feb4d05c2dccafa1698649b58f7b7fdc59c54)
---
 sys/kern/imgact_elf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c
index 23ddf3ac717a..18adb8adf4c8 100644
--- a/sys/kern/imgact_elf.c
+++ b/sys/kern/imgact_elf.c
@@ -126,7 +126,7 @@ int __elfN(nxstack) =
 #endif
 SYSCTL_INT(__CONCAT(_kern_elf, __ELF_WORD_SIZE), OID_AUTO,
     nxstack, CTLFLAG_RW, &__elfN(nxstack), 0,
-    __XSTRING(__CONCAT(ELF, __ELF_WORD_SIZE)) ": enable non-executable stack");
+    __XSTRING(__CONCAT(ELF, __ELF_WORD_SIZE)) ": support PT_GNU_STACK for non-executable stack control");
 
 #if defined(__amd64__)
 static int __elfN(vdso) = 1;