Tejun Heo ce36394269 mmap: fix petty bug in anonymous shared mmap offset handling ... Anonymous mappings should ignore offset but shared anonymous mapping forgot to clear it and makes the following legit test program trigger SIGBUS. #include <sys/mman.h> #include <stdio.h> #include <errno.h> #define PAGE_SIZE 4096 int main(void) { char *p; int i; p = mmap(NULL, 2 * PAGE_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS, -1, PAGE_SIZE); if (p == MAP_FAILED) { perror("mmap"); return 1; } for (i = 0; i < 2; i++) { printf("page %d\n", i); p[i * 4096] = i; } return 0; } Fix it. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Hugh Dickins <hugh@veritas.com> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-09-03 19:58:53 -07:00
..
allocpercpu.c
backing-dev.c
bootmem.c	bootmem: fix aligning of node-relative indexes and offsets	2008-08-20 15:40:31 -07:00
bounce.c
dmapool.c
fadvise.c
filemap_xip.c	mm: xip/ext2 fix block allocation race	2008-08-20 15:40:32 -07:00
filemap.c	VFS: fix dio write returning EIO when try_to_release_page fails	2008-09-02 19:21:37 -07:00
fremap.c
highmem.c
hugetlb.c	allocate structures for reservation tracking in hugetlbfs outside of spinlocks v2	2008-08-12 16:07:28 -07:00
internal.h
Kconfig	mm: Make generic weak get_user_pages_fast and EXPORT_GPL it	2008-08-12 17:52:53 +10:00
maccess.c
madvise.c
Makefile
memcontrol.c	memcg: fix oops in mem_cgroup_shrink_usage	2008-08-12 16:07:28 -07:00
memory_hotplug.c
memory.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
mempolicy.c	do_migrate_pages(): remove unused variable	2008-08-12 16:07:29 -07:00
mempool.c
migrate.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
mincore.c
mlock.c
mm_init.c	mm: mminit_loglevel cannot be __meminitdata anymore	2008-08-20 15:40:30 -07:00
mmap.c	mmap: fix petty bug in anonymous shared mmap offset handling	2008-09-03 19:58:53 -07:00
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nommu.c
oom_kill.c	security: Fix setting of PF_SUPERPRIV by __capable()	2008-08-14 22:59:43 +10:00
page_alloc.c	mm/bootmem: silence section mismatch warning - contig_page_data/bootmem_node_data	2008-09-02 19:21:37 -07:00
page_io.c
page_isolation.c	Remove '#include <stddef.h>' from mm/page_isolation.c	2008-09-02 09:29:01 +01:00
page-writeback.c
pagewalk.c
pdflush.c
prio_tree.c
quicklist.c	mm: size of quicklists shouldn't be proportional to the number of CPUs	2008-09-02 19:21:38 -07:00
readahead.c
rmap.c	mm: dirty page tracking race fix	2008-08-20 15:40:32 -07:00
shmem_acl.c
shmem.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
slab.c
slob.c
slub.c	slub: Disable NUMA remote node defragmentation by default	2008-08-20 21:50:21 +03:00
sparse-vmemmap.c
sparse.c	mm/sparse.c: removed duplicated include	2008-08-12 16:07:30 -07:00
swap_state.c	mm: show free swap as signed	2008-08-20 15:40:30 -07:00
swap.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
swapfile.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
thrash.c
tiny-shmem.c
truncate.c	VFS: fix dio write returning EIO when try_to_release_page fails	2008-09-02 19:21:37 -07:00
util.c	mm: Make generic weak get_user_pages_fast and EXPORT_GPL it	2008-08-12 17:52:53 +10:00
vmalloc.c
vmscan.c	mm: rename page trylock	2008-08-04 21:31:34 -07:00
vmstat.c	[ARM] Skip memory holes in FLATMEM when reading /proc/pagetypeinfo	2008-08-27 20:09:28 +01:00