diff options
author | Yao Liu <yotta.liu@ucloud.cn> | 2019-01-28 19:44:14 +0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-13 14:04:57 -0700 |
commit | 6f976ecaf133d1b5c5e87f5295fbbb8e4e6613e5 (patch) | |
tree | c500d77e9a06848c3561c16eeb988d6ffccc5bb3 /samples | |
parent | 7f6a66361b2556811b560071ca7bd21a22156dc4 (diff) |
nfs: Fix NULL pointer dereference of dev_name
[ Upstream commit 80ff00172407e0aad4b10b94ef0816fc3e7813cb ]
There is a NULL pointer dereference of dev_name in nfs_parse_devname()
The oops looks something like:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
...
RIP: 0010:nfs_fs_mount+0x3b6/0xc20 [nfs]
...
Call Trace:
? ida_alloc_range+0x34b/0x3d0
? nfs_clone_super+0x80/0x80 [nfs]
? nfs_free_parsed_mount_data+0x60/0x60 [nfs]
mount_fs+0x52/0x170
? __init_waitqueue_head+0x3b/0x50
vfs_kern_mount+0x6b/0x170
do_mount+0x216/0xdc0
ksys_mount+0x83/0xd0
__x64_sys_mount+0x25/0x30
do_syscall_64+0x65/0x220
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Fix this by adding a NULL check on dev_name
Signed-off-by: Yao Liu <yotta.liu@ucloud.cn>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions