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Message-ID: <202601190517.eFFmHh5X-lkp@intel.com>
Date: Mon, 19 Jan 2026 05:46:47 +0800
From: kernel test robot <lkp@...el.com>
To: Youling Tang <tangyouling@...inos.cn>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Huacai Chen <chenhuacai@...nel.org>
Subject: security/integrity/ima/ima_kexec.c:113:30: sparse: sparse:
incorrect type in assignment (different base types)
Hi Youling,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: e84d960149e71e8d5e4db69775ce31305898ed0c
commit: d162feec6b6e7ed97986118450812fdd7e9ba202 LoongArch: Add preparatory infrastructure for kexec_file
date: 4 months ago
config: loongarch-randconfig-r123-20260118 (https://download.01.org/0day-ci/archive/20260119/202601190517.eFFmHh5X-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260119/202601190517.eFFmHh5X-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/202601190517.eFFmHh5X-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> security/integrity/ima/ima_kexec.c:113:30: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [addressable] [assigned] [usertype] version @@ got restricted __le16 [usertype] @@
security/integrity/ima/ima_kexec.c:113:30: sparse: expected unsigned short [addressable] [assigned] [usertype] version
security/integrity/ima/ima_kexec.c:113:30: sparse: got restricted __le16 [usertype]
>> security/integrity/ima/ima_kexec.c:114:28: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [addressable] [assigned] [usertype] count @@ got restricted __le64 [usertype] @@
security/integrity/ima/ima_kexec.c:114:28: sparse: expected unsigned long long [addressable] [assigned] [usertype] count
security/integrity/ima/ima_kexec.c:114:28: sparse: got restricted __le64 [usertype]
>> security/integrity/ima/ima_kexec.c:115:34: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [addressable] [assigned] [usertype] buffer_size @@ got restricted __le64 [usertype] @@
security/integrity/ima/ima_kexec.c:115:34: sparse: expected unsigned long long [addressable] [assigned] [usertype] buffer_size
security/integrity/ima/ima_kexec.c:115:34: sparse: got restricted __le64 [usertype]
vim +113 security/integrity/ima/ima_kexec.c
c95e1acb6d7f00 Steven Chen 2025-04-21 80
7b8589cc29e7c3 Mimi Zohar 2016-12-19 81 static int ima_dump_measurement_list(unsigned long *buffer_size, void **buffer,
7b8589cc29e7c3 Mimi Zohar 2016-12-19 82 unsigned long segment_size)
7b8589cc29e7c3 Mimi Zohar 2016-12-19 83 {
7b8589cc29e7c3 Mimi Zohar 2016-12-19 84 struct ima_queue_entry *qe;
d68a6fe9fccfd0 Mimi Zohar 2016-12-19 85 struct ima_kexec_hdr khdr;
7b8589cc29e7c3 Mimi Zohar 2016-12-19 86 int ret = 0;
7b8589cc29e7c3 Mimi Zohar 2016-12-19 87
7b8589cc29e7c3 Mimi Zohar 2016-12-19 88 /* segment size can't change between kexec load and execute */
cb5052282c65dc Steven Chen 2025-04-21 89 if (!ima_kexec_file.buf) {
c95e1acb6d7f00 Steven Chen 2025-04-21 90 pr_err("Kexec file buf not allocated\n");
c95e1acb6d7f00 Steven Chen 2025-04-21 91 return -EINVAL;
7b8589cc29e7c3 Mimi Zohar 2016-12-19 92 }
7b8589cc29e7c3 Mimi Zohar 2016-12-19 93
d68a6fe9fccfd0 Mimi Zohar 2016-12-19 94 memset(&khdr, 0, sizeof(khdr));
d68a6fe9fccfd0 Mimi Zohar 2016-12-19 95 khdr.version = 1;
68af44a7197568 Breno Leitao 2024-11-21 96 /* This is an append-only list, no need to hold the RCU read lock */
68af44a7197568 Breno Leitao 2024-11-21 97 list_for_each_entry_rcu(qe, &ima_measurements, later, true) {
cb5052282c65dc Steven Chen 2025-04-21 98 if (ima_kexec_file.count < ima_kexec_file.size) {
7b8589cc29e7c3 Mimi Zohar 2016-12-19 99 khdr.count++;
cb5052282c65dc Steven Chen 2025-04-21 100 ima_measurements_show(&ima_kexec_file, qe);
7b8589cc29e7c3 Mimi Zohar 2016-12-19 101 } else {
7b8589cc29e7c3 Mimi Zohar 2016-12-19 102 ret = -EINVAL;
7b8589cc29e7c3 Mimi Zohar 2016-12-19 103 break;
7b8589cc29e7c3 Mimi Zohar 2016-12-19 104 }
7b8589cc29e7c3 Mimi Zohar 2016-12-19 105 }
7b8589cc29e7c3 Mimi Zohar 2016-12-19 106
7b8589cc29e7c3 Mimi Zohar 2016-12-19 107 /*
7b8589cc29e7c3 Mimi Zohar 2016-12-19 108 * fill in reserved space with some buffer details
7b8589cc29e7c3 Mimi Zohar 2016-12-19 109 * (eg. version, buffer size, number of measurements)
7b8589cc29e7c3 Mimi Zohar 2016-12-19 110 */
cb5052282c65dc Steven Chen 2025-04-21 111 khdr.buffer_size = ima_kexec_file.count;
d68a6fe9fccfd0 Mimi Zohar 2016-12-19 112 if (ima_canonical_fmt) {
d68a6fe9fccfd0 Mimi Zohar 2016-12-19 @113 khdr.version = cpu_to_le16(khdr.version);
d68a6fe9fccfd0 Mimi Zohar 2016-12-19 @114 khdr.count = cpu_to_le64(khdr.count);
d68a6fe9fccfd0 Mimi Zohar 2016-12-19 @115 khdr.buffer_size = cpu_to_le64(khdr.buffer_size);
d68a6fe9fccfd0 Mimi Zohar 2016-12-19 116 }
cb5052282c65dc Steven Chen 2025-04-21 117 memcpy(ima_kexec_file.buf, &khdr, sizeof(khdr));
d68a6fe9fccfd0 Mimi Zohar 2016-12-19 118
520451e90cbe9d Bruno Meneguele 2021-12-28 119 print_hex_dump_debug("ima dump: ", DUMP_PREFIX_NONE, 16, 1,
cb5052282c65dc Steven Chen 2025-04-21 120 ima_kexec_file.buf, ima_kexec_file.count < 100 ?
cb5052282c65dc Steven Chen 2025-04-21 121 ima_kexec_file.count : 100,
520451e90cbe9d Bruno Meneguele 2021-12-28 122 true);
7b8589cc29e7c3 Mimi Zohar 2016-12-19 123
cb5052282c65dc Steven Chen 2025-04-21 124 *buffer_size = ima_kexec_file.count;
cb5052282c65dc Steven Chen 2025-04-21 125 *buffer = ima_kexec_file.buf;
9f0ec4b16f2b41 Steven Chen 2025-04-21 126
7b8589cc29e7c3 Mimi Zohar 2016-12-19 127 return ret;
7b8589cc29e7c3 Mimi Zohar 2016-12-19 128 }
7b8589cc29e7c3 Mimi Zohar 2016-12-19 129
:::::: The code at line 113 was first introduced by commit
:::::: d68a6fe9fccfd00589c61df672b449d66ba3183f ima: define a canonical binary_runtime_measurements list format
:::::: TO: Mimi Zohar <zohar@...ux.vnet.ibm.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>
--
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https://github.com/intel/lkp-tests/wiki
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