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authorKevin Hilman <khilman@linaro.org>2015-10-13 16:30:38 -0700
committerKevin Hilman <khilman@linaro.org>2015-10-13 16:30:38 -0700
commit575afa2b6b9b628766618f3da6c7289ab32f5661 (patch)
treed4a23ddffc524e15b9a68b1aefa44da967fe7dd8 /fs/cifs/ioctl.c
parentc765e5c15e7d23d2b8b37fafdafc63c0ea75fabf (diff)
parent1230ae0e99e05ced8a945a1a2c5762ce5c6c97c9 (diff)
Merge tag 'v3.14.54' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable into linux-linaro-lsk-v3.14lsk-v3.14-15.10
This is the 3.14.54 stable release * tag 'v3.14.54' of git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable: (115 commits) Linux 3.14.54 NVMe: Initialize device reference count earlier udf: Check length of extended attributes and allocation descriptors x86/nmi/64: Use DF to avoid userspace RSP confusing nested NMI detection x86/nmi/64: Reorder nested NMI checks x86/nmi/64: Improve nested NMI comments x86/nmi/64: Switch stacks on userspace NMI entry x86/nmi/64: Remove asm code that saves CR2 x86/nmi: Enable nested do_nmi() handling for 64-bit kernels Revert "iio: bmg160: IIO_BUFFER and IIO_TRIGGERED_BUFFER are required" net: gso: use feature flag argument in all protocol gso handlers bna: fix interrupts storm caused by erroneous packets udp: fix dst races with multicast early demux rds: fix an integer overflow test in rds_info_getsockopt() packet: missing dev_put() in packet_do_bind() fib_rules: fix fib rule dumps across multiple skbs openvswitch: Zero flows on allocation. sctp: fix race on protocol/netns initialization netlink, mmap: transform mmap skb into full skb on taps net/ipv6: Correct PIM6 mrt_lock handling ...
Diffstat (limited to 'fs/cifs/ioctl.c')
-rw-r--r--fs/cifs/ioctl.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index dfc95646b88c..31df9bceedca 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -67,6 +67,12 @@ static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
goto out_drop_write;
}
+ if (src_file.file->f_op->unlocked_ioctl != cifs_ioctl) {
+ rc = -EBADF;
+ cifs_dbg(VFS, "src file seems to be from a different filesystem type\n");
+ goto out_fput;
+ }
+
if ((!src_file.file->private_data) || (!dst_file->private_data)) {
rc = -EBADF;
cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");