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mseal sysmap: generic vdso vvar mapping

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With the introduction of the generic vdso data storage the VM_SEALED_SYSMAP
vm flag must be moved from the architecture specific
_install_special_mapping() call [1] [2] which maps the vvar mapping to
generic code.

[1] https://lkml.kernel.org/r/[email protected]
[2] https://lkml.kernel.org/r/[email protected]

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Heiko Carstens <[email protected]>
Reviewed-by: Lorenzo Stoakes <[email protected]>
Cc: Alexander Gordeev <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Jeff Xu <[email protected]>
Cc: Liam Howlett <[email protected]>
Cc: Sven Schnelle <[email protected]>
Cc: Thomas Weißschuh <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
This commit is contained in:
Heiko Carstens authored and Andrew Morton committed 2025-04-01 15:17:15 -07:00
1 parent 7b0141daf3
commit 1d6fad7b84
1 file changed
+2 -1
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lib/vdso/datastore.c
+2 -1
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@@ -99,7 +99,8 @@ const struct vm_special_mapping vdso_vvar_mapping = {
struct vm_area_struct *vdso_install_vvar_mapping(struct mm_struct *mm, unsigned long addr)
{
return _install_special_mapping(mm, addr, VDSO_NR_PAGES * PAGE_SIZE,
VM_READ | VM_MAYREAD | VM_IO | VM_DONTDUMP | VM_PFNMAP,
VM_READ | VM_MAYREAD | VM_IO | VM_DONTDUMP |
VM_PFNMAP | VM_SEALED_SYSMAP,
&vdso_vvar_mapping);
}