git: be30fd3ab2e8 - main - KERN_PROC_VM_LAYOUT sysctl: fix bug in 32-bit-compatible path

[Mike Karels]

The branch main has been updated by karels:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=be30fd3ab2e8418a696e69f54a91a7e2db5962de

commit be30fd3ab2e8418a696e69f54a91a7e2db5962de
Author:     Mike Karels <kar...@freebsd.org>
AuthorDate: 2023-07-07 13:37:16 +0000
Commit:     Mike Karels <kar...@freebsd.org>
CommitDate: 2023-07-07 13:37:16 +0000

    KERN_PROC_VM_LAYOUT sysctl: fix bug in 32-bit-compatible path
    
    vmspace_free() is called redundantly in the 32-bit-compatible
    path in sysctl_kern_proc_vm_layout(), causing a premature free
    (possibly for the current address space).  Remove the extra call.
    
    PR:             272401
    Reported by:    marklmi at yahoo.com
    Reviewed by:    markj
    Differential Revision:  https://reviews.freebsd.org/D40908
---
 sys/kern/kern_proc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c
index 19b3b41aa6f3..6d804d93eccc 100644
--- a/sys/kern/kern_proc.c
+++ b/sys/kern/kern_proc.c
@@ -3286,7 +3286,6 @@ sysctl_kern_proc_vm_layout(SYSCTL_HANDLER_ARGS)
                kvm32.kvm_shp_addr = (uint32_t)kvm.kvm_shp_addr;
                kvm32.kvm_shp_size = (uint32_t)kvm.kvm_shp_size;
                kvm32.kvm_map_flags = kvm.kvm_map_flags;
-               vmspace_free(vmspace);
                error = SYSCTL_OUT(req, &kvm32, sizeof(kvm32));
                goto out;
        }