Revision 34b2cef20f19c87999fff3da4071e66937db9644 authored by Eric Dumazet on 04 February 2017, 19:16:52 UTC, committed by David S. Miller on 05 February 2017, 00:42:28 UTC
Andrey Konovalov got crashes in __ip_options_echo() when a NULL skb->dst is accessed. ipv4_pktinfo_prepare() should not drop the dst if (evil) IP options are present. We could refine the test to the presence of ts_needtime or srr, but IP options are not often used, so let's be conservative. Thanks to syzkaller team for finding this bug. Fixes: d826eb14ecef ("ipv4: PKTINFO doesnt need dst reference") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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File | Mode | Size |
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9p | ||
adfs | ||
affs | ||
afs | ||
autofs4 | ||
befs | ||
bfs | ||
btrfs | ||
cachefiles | ||
ceph | ||
cifs | ||
coda | ||
configfs | ||
cramfs | ||
crypto | ||
debugfs | ||
devpts | ||
dlm | ||
ecryptfs | ||
efivarfs | ||
efs | ||
exofs | ||
exportfs | ||
ext2 | ||
ext4 | ||
f2fs | ||
fat | ||
freevxfs | ||
fscache | ||
fuse | ||
gfs2 | ||
hfs | ||
hfsplus | ||
hostfs | ||
hpfs | ||
hugetlbfs | ||
isofs | ||
jbd2 | ||
jffs2 | ||
jfs | ||
kernfs | ||
lockd | ||
minix | ||
ncpfs | ||
nfs | ||
nfs_common | ||
nfsd | ||
nilfs2 | ||
nls | ||
notify | ||
ntfs | ||
ocfs2 | ||
omfs | ||
openpromfs | ||
orangefs | ||
overlayfs | ||
proc | ||
pstore | ||
qnx4 | ||
qnx6 | ||
quota | ||
ramfs | ||
reiserfs | ||
romfs | ||
squashfs | ||
sysfs | ||
sysv | ||
tracefs | ||
ubifs | ||
udf | ||
ufs | ||
xfs | ||
Kconfig | -rw-r--r-- | 7.2 KB |
Kconfig.binfmt | -rw-r--r-- | 7.2 KB |
Makefile | -rw-r--r-- | 4.2 KB |
aio.c | -rw-r--r-- | 45.9 KB |
anon_inodes.c | -rw-r--r-- | 4.9 KB |
attr.c | -rw-r--r-- | 9.1 KB |
bad_inode.c | -rw-r--r-- | 5.3 KB |
binfmt_aout.c | -rw-r--r-- | 10.7 KB |
binfmt_elf.c | -rw-r--r-- | 60.9 KB |
binfmt_elf_fdpic.c | -rw-r--r-- | 46.9 KB |
binfmt_em86.c | -rw-r--r-- | 2.8 KB |
binfmt_flat.c | -rw-r--r-- | 27.8 KB |
binfmt_misc.c | -rw-r--r-- | 18.3 KB |
binfmt_script.c | -rw-r--r-- | 3.0 KB |
block_dev.c | -rw-r--r-- | 55.3 KB |
buffer.c | -rw-r--r-- | 91.5 KB |
char_dev.c | -rw-r--r-- | 13.5 KB |
compat.c | -rw-r--r-- | 35.3 KB |
compat_binfmt_elf.c | -rw-r--r-- | 3.7 KB |
compat_ioctl.c | -rw-r--r-- | 45.8 KB |
coredump.c | -rw-r--r-- | 21.2 KB |
dax.c | -rw-r--r-- | 39.6 KB |
dcache.c | -rw-r--r-- | 93.8 KB |
dcookies.c | -rw-r--r-- | 6.9 KB |
direct-io.c | -rw-r--r-- | 38.3 KB |
drop_caches.c | -rw-r--r-- | 1.6 KB |
eventfd.c | -rw-r--r-- | 12.9 KB |
eventpoll.c | -rw-r--r-- | 60.1 KB |
exec.c | -rw-r--r-- | 44.4 KB |
fcntl.c | -rw-r--r-- | 16.7 KB |
fhandle.c | -rw-r--r-- | 6.5 KB |
file.c | -rw-r--r-- | 23.6 KB |
file_table.c | -rw-r--r-- | 8.5 KB |
filesystems.c | -rw-r--r-- | 6.4 KB |
fs-writeback.c | -rw-r--r-- | 70.4 KB |
fs_pin.c | -rw-r--r-- | 2.0 KB |
fs_struct.c | -rw-r--r-- | 3.3 KB |
inode.c | -rw-r--r-- | 55.0 KB |
internal.h | -rw-r--r-- | 4.7 KB |
ioctl.c | -rw-r--r-- | 17.2 KB |
iomap.c | -rw-r--r-- | 22.7 KB |
libfs.c | -rw-r--r-- | 30.4 KB |
locks.c | -rw-r--r-- | 73.3 KB |
mbcache.c | -rw-r--r-- | 11.9 KB |
mount.h | -rw-r--r-- | 3.8 KB |
mpage.c | -rw-r--r-- | 20.5 KB |
namei.c | -rw-r--r-- | 119.6 KB |
namespace.c | -rw-r--r-- | 84.5 KB |
no-block.c | -rw-r--r-- | 688 bytes |
nsfs.c | -rw-r--r-- | 5.1 KB |
open.c | -rw-r--r-- | 27.6 KB |
pipe.c | -rw-r--r-- | 27.3 KB |
pnode.c | -rw-r--r-- | 11.3 KB |
pnode.h | -rw-r--r-- | 1.9 KB |
posix_acl.c | -rw-r--r-- | 21.4 KB |
proc_namespace.c | -rw-r--r-- | 7.8 KB |
read_write.c | -rw-r--r-- | 45.8 KB |
readdir.c | -rw-r--r-- | 7.3 KB |
select.c | -rw-r--r-- | 25.7 KB |
seq_file.c | -rw-r--r-- | 23.1 KB |
signalfd.c | -rw-r--r-- | 9.2 KB |
splice.c | -rw-r--r-- | 39.9 KB |
stack.c | -rw-r--r-- | 2.5 KB |
stat.c | -rw-r--r-- | 11.9 KB |
statfs.c | -rw-r--r-- | 5.3 KB |
super.c | -rw-r--r-- | 37.8 KB |
sync.c | -rw-r--r-- | 9.9 KB |
timerfd.c | -rw-r--r-- | 13.1 KB |
userfaultfd.c | -rw-r--r-- | 36.3 KB |
utimes.c | -rw-r--r-- | 5.6 KB |
xattr.c | -rw-r--r-- | 23.5 KB |
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