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| author | Linus Torvalds <torvalds@evo.osdl.org> | 2005-01-07 20:07:50 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-01-07 20:07:50 -0800 |
| commit | 1265755d4f2a5772bfb969f65463b1b6918de115 (patch) | |
| tree | 8aa5fc415b67338308d7e9ddfd0be62996a6b99d /mm | |
| parent | 714d25d258540c2d9b61a65cbaa4e17905189239 (diff) | |
| download | history-1265755d4f2a5772bfb969f65463b1b6918de115.tar.gz | |
Fix TASK_SIZE range check that got lost in recent
clear_page_range()/4-level page table updates.
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mmap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 25348d68fcb9fe..98ae4fcd2e0019 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1484,6 +1484,9 @@ static void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *prev, unsigned long last = end + PGDIR_SIZE - 1; struct mm_struct *mm = tlb->mm; + if (last > TASK_SIZE || last < end) + last = TASK_SIZE; + if (!prev) { prev = mm->mmap; if (!prev) |