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Date: Fri, 10 May 2024 05:34:57 +0800
From: kernel test robot <lkp@...el.com>
To: Dan Carpenter <error27@...il.com>,
Trond Myklebust <Trond.Myklebust@...app.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
Chuck Lever <chuck.lever@...cle.com>,
Jeff Layton <jlayton@...nel.org>, Neil Brown <neilb@...e.de>,
Olga Kornievskaia <kolga@...app.com>, Dai Ngo <Dai.Ngo@...cle.com>,
Tom Talpey <tom@...pey.com>, Anna Schumaker <anna@...nel.org>,
linux-nfs@...r.kernel.org, linux-kernel@...r.kernel.org,
kernel-janitors@...r.kernel.org
Subject: Re: [PATCH 1/2] SUNRPC: prevent integer overflow in XDR_QUADLEN()
Hi Dan,
kernel test robot noticed the following build errors:
[auto build test ERROR on trondmy-nfs/linux-next]
[also build test ERROR on linus/master v6.9-rc7 next-20240509]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Dan-Carpenter/SUNRPC-prevent-integer-overflow-in-XDR_QUADLEN/20240509-185141
base: git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next
patch link: https://lore.kernel.org/r/bbf929d6-18d2-4b7e-a660-a19460af0a3c%40moroto.mountain
patch subject: [PATCH 1/2] SUNRPC: prevent integer overflow in XDR_QUADLEN()
config: s390-defconfig (https://download.01.org/0day-ci/archive/20240510/202405100514.9QcoLUdp-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project b910bebc300dafb30569cecc3017b446ea8eafa0)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240510/202405100514.9QcoLUdp-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405100514.9QcoLUdp-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from include/linux/highmem.h:10:
In file included from include/linux/mm.h:2188:
include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
509 | item];
| ~~~~
include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
516 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
528 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
537 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
In file included from fs/nfsd/nfs4callback.c:34:
In file included from include/linux/nfs4.h:19:
In file included from include/linux/sunrpc/msg_prot.h:205:
In file included from include/linux/inet.h:42:
In file included from include/net/net_namespace.h:43:
In file included from include/linux/skbuff.h:28:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
547 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
| ^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
102 | #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
| ^
In file included from fs/nfsd/nfs4callback.c:34:
In file included from include/linux/nfs4.h:19:
In file included from include/linux/sunrpc/msg_prot.h:205:
In file included from include/linux/inet.h:42:
In file included from include/net/net_namespace.h:43:
In file included from include/linux/skbuff.h:28:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
| ^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
| ^
In file included from fs/nfsd/nfs4callback.c:34:
In file included from include/linux/nfs4.h:19:
In file included from include/linux/sunrpc/msg_prot.h:205:
In file included from include/linux/inet.h:42:
In file included from include/net/net_namespace.h:43:
In file included from include/linux/skbuff.h:28:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:78:
include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
584 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
692 | readsb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
700 | readsw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
708 | readsl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
717 | writesb(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
726 | writesw(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
735 | writesl(PCI_IOBASE + addr, buffer, count);
| ~~~~~~~~~~ ^
>> fs/nfsd/nfs4callback.c:832:2: error: initializer element is not a compile-time constant
832 | PROC(CB_OFFLOAD, COMPOUND, cb_offload, cb_offload),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/nfsd/nfs4callback.c:819:15: note: expanded from macro 'PROC'
819 | .p_arglen = NFS4_enc_##argtype##_sz, \
| ^~~~~~~~~~~~~~~~~~~~~~~
<scratch space>:133:1: note: expanded from here
133 | NFS4_enc_cb_offload_sz
| ^~~~~~~~~~~~~~~~~~~~~~
fs/nfsd/xdr4cb.h:43:33: note: expanded from macro 'NFS4_enc_cb_offload_sz'
43 | #define NFS4_enc_cb_offload_sz (cb_compound_enc_hdr_sz + \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
44 | cb_sequence_enc_sz + \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
45 | enc_nfs4_fh_sz + \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
46 | enc_stateid_sz + \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
47 | enc_cb_offload_info_sz)
| ~~~~~~~~~~~~~~~~~~~~~~~
17 warnings and 1 error generated.
vim +832 fs/nfsd/nfs4callback.c
^1da177e4c3f415 Linus Torvalds 2005-04-16 824
499b4988109e91b Christoph Hellwig 2017-05-12 825 static const struct rpc_procinfo nfs4_cb_procedures[] = {
7d93bd71cb3e262 Chuck Lever 2010-12-14 826 PROC(CB_NULL, NULL, cb_null, cb_null),
7d93bd71cb3e262 Chuck Lever 2010-12-14 827 PROC(CB_RECALL, COMPOUND, cb_recall, cb_recall),
c5c707f96fc9a6e Christoph Hellwig 2014-09-23 828 #ifdef CONFIG_NFSD_PNFS
c5c707f96fc9a6e Christoph Hellwig 2014-09-23 829 PROC(CB_LAYOUT, COMPOUND, cb_layout, cb_layout),
c5c707f96fc9a6e Christoph Hellwig 2014-09-23 830 #endif
a188620ebd294b1 Jeff Layton 2016-09-16 831 PROC(CB_NOTIFY_LOCK, COMPOUND, cb_notify_lock, cb_notify_lock),
9eb190fca8f9056 Olga Kornievskaia 2018-07-20 @832 PROC(CB_OFFLOAD, COMPOUND, cb_offload, cb_offload),
3959066b697b5df Dai Ngo 2022-11-16 833 PROC(CB_RECALL_ANY, COMPOUND, cb_recall_any, cb_recall_any),
^1da177e4c3f415 Linus Torvalds 2005-04-16 834 };
^1da177e4c3f415 Linus Torvalds 2005-04-16 835
--
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https://github.com/intel/lkp-tests/wiki
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