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| author | Matthew Wilcox (Oracle) <[email protected]> | 2022-01-10 23:15:27 +0000 |
|---|---|---|
| committer | Kees Cook <[email protected]> | 2022-04-13 19:15:50 +0000 |
| commit | 4e140f59d285c1ca1e5c81b4c13e27366865bd09 (patch) | |
| tree | 0e16718847cb02bacbe823ac5ba388619e46359f /scripts/gcc-plugins/randomize_layout_plugin.c | |
| parent | Merge tag 'hardening-v5.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| download | kernel-4e140f59d285c1ca1e5c81b4c13e27366865bd09.tar.gz kernel-4e140f59d285c1ca1e5c81b4c13e27366865bd09.zip | |
mm/usercopy: Check kmap addresses properly
If you are copying to an address in the kmap region, you may not copy
across a page boundary, no matter what the size of the underlying
allocation. You can't kmap() a slab page because slab pages always
come from low memory.
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Acked-by: Kees Cook <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'scripts/gcc-plugins/randomize_layout_plugin.c')
0 files changed, 0 insertions, 0 deletions