git: e4624465c16a - stable/13 - vm_page: Fix loading bad memory addresses from file

[Romain Tartière]

The branch stable/13 has been updated by romain:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=e4624465c16adb0e60a6b0edeb570dc103b40831

commit e4624465c16adb0e60a6b0edeb570dc103b40831
Author:     Romain Tartière <rom...@freebsd.org>
AuthorDate: 2025-07-25 18:31:57 +0000
Commit:     Romain Tartière <rom...@freebsd.org>
CommitDate: 2025-08-02 05:31:38 +0000

    vm_page: Fix loading bad memory addresses from file
    
    When loading bad memory addresses from a file, we are passed an end
    pointer that points on the first byte after the buffer. We want the
    buffer to be null-terminated (by changing the last byte to \0 if it is
    reasonable to do so), so adjust the end pointer to be on that byte.
    
    Approved by:    kib, markj
    MFC after:      1 week
    Differential Revision:  https://reviews.freebsd.org/D51433
    
    (cherry picked from commit 202f8bde836dc86627be2b5b98174d9a0fb2eaba)
---
 sys/vm/vm_page.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
index d21022930396..ed43a05f0e64 100644
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -393,7 +393,7 @@ vm_page_blacklist_load(char **list, char **end)
         }
        *list = ptr;
        if (ptr != NULL)
-               *end = ptr + len;
+               *end = ptr + len - 1;
        else
                *end = NULL;
        return;