7:23 p.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git pending-fixes
head: 6edb22d074776a37273a470ad7aa041671a1b9f3
commit: 4c559f15efcc43b996f4da528cd7f9483aaca36d [119/144] netfilter: nf_conntrack_pptp:
prevent buffer overflows in debug code
config: um-allmodconfig (attached as .config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build):
git checkout 4c559f15efcc43b996f4da528cd7f9483aaca36d
# save the attached .config to linux build tree
make W=1 ARCH=um
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp(a)intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
cc1: warning: arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs]
In file included from include/linux/kernel.h:11:0,
from include/linux/list.h:9,
from include/linux/module.h:12,
from net/netfilter/nf_conntrack_pptp.c:26:
include/asm-generic/fixmap.h: In function 'fix_to_virt':
include/asm-generic/fixmap.h:32:19: warning: comparison of unsigned expression >= 0 is
always true [-Wtype-limits]
BUILD_BUG_ON(idx >= __end_of_fixed_addresses);
^
include/linux/compiler.h:330:9: note: in definition of macro
'__compiletime_assert'
if (!(condition)) ^~~~~~~~~
include/linux/compiler.h:350:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:50:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
^~~~~~~~~~~~~~~~
include/asm-generic/fixmap.h:32:2: note: in expansion of macro 'BUILD_BUG_ON'
BUILD_BUG_ON(idx >= __end_of_fixed_addresses);
^~~~~~~~~~~~
In file included from include/linux/uaccess.h:11:0,
from include/linux/sched/task.h:11,
from include/linux/sched/signal.h:9,
from include/linux/rcuwait.h:6,
from include/linux/percpu-rwsem.h:7,
from include/linux/fs.h:34,
from include/linux/huge_mm.h:8,
from include/linux/mm.h:679,
from include/linux/bvec.h:13,
from include/linux/skbuff.h:17,
from net/netfilter/nf_conntrack_pptp.c:27:
arch/um/include/asm/uaccess.h: In function '__access_ok':
arch/um/include/asm/uaccess.h:17:29: warning: comparison of unsigned expression >= 0 is
always true [-Wtype-limits]
(((unsigned long) (addr) >= FIXADDR_USER_START) &&
^
arch/um/include/asm/uaccess.h:45:3: note: in expansion of macro
'__access_ok_vsyscall'
__access_ok_vsyscall(addr, size) ||
^~~~~~~~~~~~~~~~~~~~
In file included from net/netfilter/nf_conntrack_pptp.c:36:0:
include/linux/netfilter/nf_conntrack_pptp.h: At top level:
include/linux/netfilter/nf_conntrack_pptp.h:13:8: warning: type qualifiers ignored on
function return type [-Wignored-qualifiers]
extern const char *const pptp_msg_name(u_int16_t msg);
^~~~~
> net/netfilter/nf_conntrack_pptp.c:94:1: warning: type qualifiers
ignored on function return type [-Wignored-qualifiers]
const char *const
pptp_msg_name(u_int16_t msg)
^~~~~
vim +94 net/netfilter/nf_conntrack_pptp.c
93
94 const char *const pptp_msg_name(u_int16_t msg)
95 {
96 if (msg > PPTP_MSG_MAX)
97 return pptp_msg_name_array[0];
98
99 return pptp_msg_name_array[msg];
100 }
101 EXPORT_SYMBOL(pptp_msg_name);
102 #endif
103
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org