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| author | Hoang Le <hoang.h.le@dektech.com.au> | 2022-06-02 13:30:53 +0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-06-02 10:14:24 -0700 |
| commit | 7f36f798f89bf32c0164049cb0e3fd1af613d0bb (patch) | |
| tree | ca0685769d820da2dae057b5d063b5c11f8c1df7 /include/linux | |
| parent | 6e1ff618737a2ffa12191dcd99f83ef07fac2e45 (diff) | |
| download | linux-stable-7f36f798f89bf32c0164049cb0e3fd1af613d0bb.tar.gz linux-stable-7f36f798f89bf32c0164049cb0e3fd1af613d0bb.tar.bz2 linux-stable-7f36f798f89bf32c0164049cb0e3fd1af613d0bb.zip | |
tipc: check attribute length for bearer name
syzbot reported uninit-value:
=====================================================
BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:644 [inline]
BUG: KMSAN: uninit-value in string+0x4f9/0x6f0 lib/vsprintf.c:725
string_nocheck lib/vsprintf.c:644 [inline]
string+0x4f9/0x6f0 lib/vsprintf.c:725
vsnprintf+0x2222/0x3650 lib/vsprintf.c:2806
vprintk_store+0x537/0x2150 kernel/printk/printk.c:2158
vprintk_emit+0x28b/0xab0 kernel/printk/printk.c:2256
vprintk_default+0x86/0xa0 kernel/printk/printk.c:2283
vprintk+0x15f/0x180 kernel/printk/printk_safe.c:50
_printk+0x18d/0x1cf kernel/printk/printk.c:2293
tipc_enable_bearer net/tipc/bearer.c:371 [inline]
__tipc_nl_bearer_enable+0x2022/0x22a0 net/tipc/bearer.c:1033
tipc_nl_bearer_enable+0x6c/0xb0 net/tipc/bearer.c:1042
genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
- Do sanity check the attribute length for TIPC_NLA_BEARER_NAME.
- Do not use 'illegal name' in printing message.
Reported-by: syzbot+e820fdc8ce362f2dea51@syzkaller.appspotmail.com
Fixes: cb30a63384bc ("tipc: refactor function tipc_enable_bearer()")
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Link: https://lore.kernel.org/r/20220602063053.5892-1-hoang.h.le@dektech.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions