CC: kbuild-...@lists.01.org CC: linux-ker...@vger.kernel.org TO: "Waiman, Long," <long...@redhat.com> CC: David Howells <dhowe...@redhat.com> CC: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 commit: d3ec10aa95819bff18a0d936b18884c7816d0914 KEYS: Don't write out to userspace while holding key semaphore date: 9 weeks ago :::::: branch date: 16 hours ago :::::: commit date: 9 weeks ago config: i386-randconfig-s001-20200601 (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.1-243-gc100a7ab-dirty git checkout d3ec10aa95819bff18a0d936b18884c7816d0914 # save the attached .config to linux build tree make W=1 C=1 ARCH=i386 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <l...@intel.com> sparse warnings: (new ones prefixed by >>) security/keys/keyring.c:93:27: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@ expected long ( *read )( ... ) @@ got long ( * )( ... ) @@ >> security/keys/keyring.c:93:27: sparse: expected long ( *read )( ... ) security/keys/keyring.c:93:27: sparse: got long ( * )( ... ) security/keys/keyring.c:469:21: sparse: sparse: dereference of noderef expression security/keys/keyring.c:1234:5: sparse: sparse: context imbalance in '__key_link_lock' - wrong count at exit security/keys/keyring.c:1256:5: sparse: sparse: context imbalance in '__key_move_lock' - wrong count at exit security/keys/keyring.c:1396:9: sparse: sparse: context imbalance in '__key_link_end' - wrong count at exit security/keys/keyring.c:1459:9: sparse: sparse: context imbalance in 'key_link' - wrong count at exit security/keys/keyring.c:1467:12: sparse: sparse: context imbalance in '__key_unlink_lock' - wrong count at exit security/keys/keyring.c:1520:9: sparse: sparse: context imbalance in '__key_unlink_end' - wrong count at exit security/keys/keyring.c:1540:5: sparse: sparse: context imbalance in 'key_unlink' - wrong count at exit security/keys/keyring.c:1585:5: sparse: sparse: context imbalance in 'key_move' - different lock contexts for basic block # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d3ec10aa95819bff18a0d936b18884c7816d0914 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git remote update linus git checkout d3ec10aa95819bff18a0d936b18884c7816d0914 vim +93 security/keys/keyring.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 68 ^1da177e4c3f41 Linus Torvalds 2005-04-16 69 /* 973c9f4f49ca96 David Howells 2011-01-20 70 * The keyring key type definition. Keyrings are simply keys of this type and 973c9f4f49ca96 David Howells 2011-01-20 71 * can be treated as ordinary keys in addition to having their own special 973c9f4f49ca96 David Howells 2011-01-20 72 * operations. ^1da177e4c3f41 Linus Torvalds 2005-04-16 73 */ 5d19e20b534ff4 David Howells 2014-07-18 74 static int keyring_preparse(struct key_preparsed_payload *prep); 5d19e20b534ff4 David Howells 2014-07-18 75 static void keyring_free_preparse(struct key_preparsed_payload *prep); ^1da177e4c3f41 Linus Torvalds 2005-04-16 76 static int keyring_instantiate(struct key *keyring, cf7f601c067994 David Howells 2012-09-13 77 struct key_preparsed_payload *prep); 31204ed925b067 David Howells 2006-06-26 78 static void keyring_revoke(struct key *keyring); ^1da177e4c3f41 Linus Torvalds 2005-04-16 79 static void keyring_destroy(struct key *keyring); ^1da177e4c3f41 Linus Torvalds 2005-04-16 80 static void keyring_describe(const struct key *keyring, struct seq_file *m); ^1da177e4c3f41 Linus Torvalds 2005-04-16 81 static long keyring_read(const struct key *keyring, ^1da177e4c3f41 Linus Torvalds 2005-04-16 82 char __user *buffer, size_t buflen); ^1da177e4c3f41 Linus Torvalds 2005-04-16 83 ^1da177e4c3f41 Linus Torvalds 2005-04-16 84 struct key_type key_type_keyring = { ^1da177e4c3f41 Linus Torvalds 2005-04-16 85 .name = "keyring", b2a4df200d570b David Howells 2013-09-24 86 .def_datalen = 0, 5d19e20b534ff4 David Howells 2014-07-18 87 .preparse = keyring_preparse, 5d19e20b534ff4 David Howells 2014-07-18 88 .free_preparse = keyring_free_preparse, ^1da177e4c3f41 Linus Torvalds 2005-04-16 89 .instantiate = keyring_instantiate, 31204ed925b067 David Howells 2006-06-26 90 .revoke = keyring_revoke, ^1da177e4c3f41 Linus Torvalds 2005-04-16 91 .destroy = keyring_destroy, ^1da177e4c3f41 Linus Torvalds 2005-04-16 92 .describe = keyring_describe, ^1da177e4c3f41 Linus Torvalds 2005-04-16 @93 .read = keyring_read, ^1da177e4c3f41 Linus Torvalds 2005-04-16 94 }; 7318226ea2931a David Howells 2007-04-26 95 EXPORT_SYMBOL(key_type_keyring); 7318226ea2931a David Howells 2007-04-26 96 :::::: The code at line 93 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <torva...@ppc970.osdl.org> :::::: CC: Linus Torvalds <torva...@ppc970.osdl.org> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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