:::::: :::::: Manual check reason: "low confidence bisect report" :::::: Manual check reason: "low confidence static check first_new_problem: fs/ntfs3/fsntfs.c:1264:32: warning: use of uninitialized value 'clen' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]" ::::::
BCC: l...@intel.com CC: kbuild-...@lists.01.org CC: linux-ker...@vger.kernel.org TO: Konstantin Komarov <almaz.alexandrov...@paragon-software.com> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: eb555cb5b794f4e12a9897f3d46d5a72104cd4a7 commit: 6e5be40d32fb1907285277c02e74493ed43d77fe fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile date: 12 months ago :::::: branch date: 15 hours ago :::::: commit date: 12 months ago config: arm-randconfig-c002-20220805 (https://download.01.org/0day-ci/archive/20220810/202208100203.xmj3xfft-...@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6e5be40d32fb1907285277c02e74493ed43d77fe git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 6e5be40d32fb1907285277c02e74493ed43d77fe # save the config file COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross ARCH=arm KBUILD_USERCFLAGS='-fanalyzer -Wno-error' If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <l...@intel.com> gcc-analyzer warnings: (new ones prefixed by >>) | | ~~~~~~~~~~~~ | | | | | (7) ...to here |...... | 1234 | bh = ntfs_bread(sb, block); | | ~~~~~~~~~~~~~~~~~~~~~ | | | | | (8) calling 'ntfs_bread' from 'ntfs_read_run_nb' | +--> 'ntfs_bread': events 9-10 | |fs/ntfs3/ntfs_fs.h:962:35: | 962 | static inline struct buffer_head *ntfs_bread(struct super_block *sb, | | ^~~~~~~~~~ | | | | | (9) entry to 'ntfs_bread' |...... | 967 | if (bh) | | ~ | | | | | (10) following 'true' branch... | 'ntfs_bread': event 11 | |cc1: | (11): ...to here | <------+ | 'ntfs_read_run_nb': events 12-17 | |fs/ntfs3/fsntfs.c:1234:30: | 1234 | bh = ntfs_bread(sb, block); | | ^~~~~~~~~~~~~~~~~~~~~ | | | | | (12) returning to 'ntfs_read_run_nb' from 'ntfs_bread' | 1235 | if (!bh) { | | ~ | | | | | (13) following 'false' branch (when 'bh' is non-NULL)... |...... | 1240 | if (buf) { | | ~ | | | | | (14) ...to here | | (15) following 'false' branch (when 'buf' is NULL)... |...... | 1245 | if (!nb) { | | ~ | | | | | (16) ...to here | | (17) following 'true' branch (when 'nb' is NULL)... | 'ntfs_read_run_nb': event 18 | |include/linux/compiler.h:86:20: | 86 | # define barrier() __asm__ __volatile__("": : :"memory") | | ^~~~~~~ | | | | | (18) ...to here include/asm-generic/barrier.h:152:33: note: in expansion of macro 'barrier' | 152 | #define smp_mb__before_atomic() barrier() | | ^~~~~~~ include/linux/buffer_head.h:284:9: note: in expansion of macro 'smp_mb__before_atomic' | 284 | smp_mb__before_atomic(); | | ^~~~~~~~~~~~~~~~~~~~~ | <------+ | 'ntfs_read_bh': events 19-22 | |fs/ntfs3/fsntfs.c:1298:19: | 1298 | int err = ntfs_read_run_nb(sbi, run, vbo, rhdr, bytes, nb); | | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (19) returning to 'ntfs_read_bh' from 'ntfs_read_run_nb' | 1299 | | 1300 | if (err) | | ~ | | | | | (20) following 'false' branch (when 'err == 0')... | 1301 | return err; | 1302 | return ntfs_fix_post_read(rhdr, nb->bytes, true); | | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (21) ...to here | | (22) calling 'ntfs_fix_post_read' from 'ntfs_read_bh' | +--> 'ntfs_fix_post_read': event 23 | | 146 | int ntfs_fix_post_read(struct NTFS_RECORD_HEADER *rhdr, size_t bytes, | | ^~~~~~~~~~~~~~~~~~ | | | | | (23) entry to 'ntfs_fix_post_read' | 'ntfs_fix_post_read': event 24 | | 153 | fo = le16_to_cpu(rhdr->fix_off); | fs/ntfs3/fsntfs.c: In function 'ntfs_read_run_nb': >> fs/ntfs3/fsntfs.c:1264:32: warning: use of uninitialized value 'clen' >> [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 1264 | vcn_next = vcn + clen; | ~~~~^~~~~~ 'ntfs_read_run_nb': events 1-7 | | 1180 | int ntfs_read_run_nb(struct ntfs_sb_info *sbi, const struct runs_tree *run, | | ^~~~~~~~~~~~~~~~ | | | | | (1) entry to 'ntfs_read_run_nb' |...... | 1190 | CLST lcn, clen; | | ~~~~ | | | | | (2) region created on stack here |...... | 1195 | if (!run) { | | ~ | | | | | (3) following 'true' branch (when 'run' is NULL)... | 1196 | /* first reading of $Volume + $MFTMirr + LogFile goes here*/ | 1197 | if (vbo > MFT_REC_VOL * sbi->record_size) { | | ~ ~~~~~~~~~~~~~~~~ | | | | | | | (4) ...to here | | (5) following 'false' branch... |...... | 1203 | lbo = vbo + sbi->mft.lbo; | | ~~~~~~~~~~~~ | | | | | (6) ...to here |...... | 1234 | bh = ntfs_bread(sb, block); | | ~~~~~~~~~~~~~~~~~~~~~ | | | | | (7) calling 'ntfs_bread' from 'ntfs_read_run_nb' | +--> 'ntfs_bread': events 8-9 | |fs/ntfs3/ntfs_fs.h:962:35: | 962 | static inline struct buffer_head *ntfs_bread(struct super_block *sb, | | ^~~~~~~~~~ | | | | | (8) entry to 'ntfs_bread' |...... | 967 | if (bh) | | ~ | | | | | (9) following 'true' branch... | 'ntfs_bread': event 10 | |cc1: | (10): ...to here | <------+ | 'ntfs_read_run_nb': events 11-16 | |fs/ntfs3/fsntfs.c:1234:30: | 1234 | bh = ntfs_bread(sb, block); | | ^~~~~~~~~~~~~~~~~~~~~ | | | | | (11) returning to 'ntfs_read_run_nb' from 'ntfs_bread' | 1235 | if (!bh) { | | ~ | | | | | (12) following 'false' branch (when 'bh' is non-NULL)... |...... | 1240 | if (buf) { | | ~ | | | | | (13) ...to here | | (14) following 'false' branch (when 'buf' is NULL)... |...... | 1245 | if (!nb) { | | ~ | | | | | (15) ...to here | | (16) following 'true' branch (when 'nb' is NULL)... | 'ntfs_read_run_nb': event 17 | |include/linux/compiler.h:86:20: | 86 | # define barrier() __asm__ __volatile__("": : :"memory") | | ^~~~~~~ | | | | | (17) ...to here include/asm-generic/barrier.h:152:33: note: in expansion of macro 'barrier' | 152 | #define smp_mb__before_atomic() barrier() | | ^~~~~~~ include/linux/buffer_head.h:284:9: note: in expansion of macro 'smp_mb__before_atomic' | 284 | smp_mb__before_atomic(); | | ^~~~~~~~~~~~~~~~~~~~~ | 'ntfs_read_run_nb': events 18-22 | |fs/ntfs3/fsntfs.c:1256:28: | 1256 | if (!bytes) | | ^ | | | | | (18) following 'false' branch (when 'bytes != 0')... | 1257 | return 0; | 1258 | len32 -= op; | | ~~~~~~~~~~~ | | | | | (19) ...to here |...... | 1262 | } while (len32); | | ~~~~~ | | | | | (20) following 'false' branch (when 'len32 == 0')... | 1263 | | 1264 | vcn_next = vcn + clen; | | ~~~~~~~~~~ | | | | | (21) ...to here | | (22) use of uninitialized value 'clen' here | >> fs/ntfs3/fsntfs.c:1264:32: warning: use of uninitialized value 'clen' >> [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 1264 | vcn_next = vcn + clen; | ~~~~^~~~~~ 'ntfs_read_bh': events 1-2 | | 1294 | int ntfs_read_bh(struct ntfs_sb_info *sbi, const struct runs_tree *run, u64 vbo, | | ^~~~~~~~~~~~ | | | | | (1) entry to 'ntfs_read_bh' |...... | 1298 | int err = ntfs_read_run_nb(sbi, run, vbo, rhdr, bytes, nb); | | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (2) calling 'ntfs_read_run_nb' from 'ntfs_read_bh' | +--> 'ntfs_read_run_nb': events 3-9 | | 1180 | int ntfs_read_run_nb(struct ntfs_sb_info *sbi, const struct runs_tree *run, | | ^~~~~~~~~~~~~~~~ | | | | | (3) entry to 'ntfs_read_run_nb' |...... | 1190 | CLST lcn, clen; | | ~~~~ | | | | | (4) region created on stack here |...... | 1195 | if (!run) { | | ~ | | | | | (5) following 'true' branch (when 'run' is NULL)... | 1196 | /* first reading of $Volume + $MFTMirr + LogFile goes here*/ | 1197 | if (vbo > MFT_REC_VOL * sbi->record_size) { | | ~ ~~~~~~~~~~~~~~~~ | | | | | | | (6) ...to here | | (7) following 'false' branch... |...... | 1203 | lbo = vbo + sbi->mft.lbo; | | ~~~~~~~~~~~~ | | | | | (8) ...to here |...... | 1234 | bh = ntfs_bread(sb, block); | | ~~~~~~~~~~~~~~~~~~~~~ | | | | | (9) calling 'ntfs_bread' from 'ntfs_read_run_nb' | +--> 'ntfs_bread': events 10-11 | |fs/ntfs3/ntfs_fs.h:962:35: | 962 | static inline struct buffer_head *ntfs_bread(struct super_block *sb, | | ^~~~~~~~~~ | | | | | (10) entry to 'ntfs_bread' |...... | 967 | if (bh) | | ~ | | | | | (11) following 'true' branch... | 'ntfs_bread': event 12 | |cc1: | (12): ...to here | <------+ | 'ntfs_read_run_nb': events 13-18 | |fs/ntfs3/fsntfs.c:1234:30: | 1234 | bh = ntfs_bread(sb, block); | | ^~~~~~~~~~~~~~~~~~~~~ | | | | | (13) returning to 'ntfs_read_run_nb' from 'ntfs_bread' | 1235 | if (!bh) { | | ~ | | | | | (14) following 'false' branch (when 'bh' is non-NULL)... |...... | 1240 | if (buf) { | | ~ | | | | | (15) ...to here | | (16) following 'false' branch (when 'buf' is NULL)... |...... | 1245 | if (!nb) { | | ~ | | | | | (17) ...to here | | (18) following 'true' branch (when 'nb' is NULL)... | 'ntfs_read_run_nb': event 19 | |include/linux/compiler.h:86:20: | 86 | # define barrier() __asm__ __volatile__("": : :"memory") | | ^~~~~~~ | | | | | (19) ...to here include/asm-generic/barrier.h:152:33: note: in expansion of macro 'barrier' | 152 | #define smp_mb__before_atomic() barrier() | | ^~~~~~~ include/linux/buffer_head.h:284:9: note: in expansion of macro 'smp_mb__before_atomic' | 284 | smp_mb__before_atomic(); | | ^~~~~~~~~~~~~~~~~~~~~ | 'ntfs_read_run_nb': events 20-24 | |fs/ntfs3/fsntfs.c:1256:28: | 1256 | if (!bytes) | | ^ | | | | | (20) following 'false' branch (when 'bytes != 0')... | 1257 | return 0; | 1258 | len32 -= op; | | ~~~~~~~~~~~ | | | | | (21) ...to here |...... | 1262 | } while (len32); | | ~~~~~ | | | | | (22) following 'false' branch (when 'len32 == 0')... | 1263 | | 1264 | vcn_next = vcn + clen; | | ~~~~~~~~~~ | | | | | (23) ...to here | | (24) use of uninitialized value 'clen' here | >> fs/ntfs3/fsntfs.c:1265:22: warning: use of uninitialized value 'idx' >> [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 1265 | if (!run_get_entry(run, ++idx, &vcn, &lcn, &clen) || | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 'ntfs_read_run_nb': events 1-7 | | 1180 | int ntfs_read_run_nb(struct ntfs_sb_info *sbi, const struct runs_tree *run, | | ^~~~~~~~~~~~~~~~ | | | | | (1) entry to 'ntfs_read_run_nb' |...... | 1192 | size_t idx; | | ~~~ | | | | | (2) region created on stack here |...... | 1195 | if (!run) { | | ~ | | | | | (3) following 'true' branch (when 'run' is NULL)... | 1196 | /* first reading of $Volume + $MFTMirr + LogFile goes here*/ | 1197 | if (vbo > MFT_REC_VOL * sbi->record_size) { | | ~ ~~~~~~~~~~~~~~~~ | | | | | | | (4) ...to here | | (5) following 'false' branch... |...... | 1203 | lbo = vbo + sbi->mft.lbo; | | ~~~~~~~~~~~~ | | | | | (6) ...to here |...... | 1234 | bh = ntfs_bread(sb, block); | | ~~~~~~~~~~~~~~~~~~~~~ | | | | | (7) calling 'ntfs_bread' from 'ntfs_read_run_nb' | +--> 'ntfs_bread': events 8-9 | |fs/ntfs3/ntfs_fs.h:962:35: | 962 | static inline struct buffer_head *ntfs_bread(struct super_block *sb, | | ^~~~~~~~~~ | | | | | (8) entry to 'ntfs_bread' |...... | 967 | if (bh) | | ~ | | | | | (9) following 'true' branch... | 'ntfs_bread': event 10 | |cc1: | (10): ...to here | <------+ | 'ntfs_read_run_nb': events 11-16 | |fs/ntfs3/fsntfs.c:1234:30: | 1234 | bh = ntfs_bread(sb, block); | | ^~~~~~~~~~~~~~~~~~~~~ | | | | | (11) returning to 'ntfs_read_run_nb' from 'ntfs_bread' | 1235 | if (!bh) { | | ~ | | | | | (12) following 'false' branch (when 'bh' is non-NULL)... |...... | 1240 | if (buf) { | | ~ | | | | | (13) ...to here | | (14) following 'false' branch (when 'buf' is NULL)... |...... | 1245 | if (!nb) { | | ~ | | | | | (15) ...to here | | (16) following 'true' branch (when 'nb' is NULL)... | 'ntfs_read_run_nb': event 17 | |include/linux/compiler.h:86:20: | 86 | # define barrier() __asm__ __volatile__("": : :"memory") | | ^~~~~~~ | | | | | (17) ...to here include/asm-generic/barrier.h:152:33: note: in expansion of macro 'barrier' | 152 | #define smp_mb__before_atomic() barrier() | | ^~~~~~~ include/linux/buffer_head.h:284:9: note: in expansion of macro 'smp_mb__before_atomic' | 284 | smp_mb__before_atomic(); | | ^~~~~~~~~~~~~~~~~~~~~ | 'ntfs_read_run_nb': events 18-22 | |fs/ntfs3/fsntfs.c:1256:28: | 1256 | if (!bytes) | | ^ | | | | | (18) following 'false' branch (when 'bytes != 0')... | 1257 | return 0; | 1258 | len32 -= op; | | ~~~~~~~~~~~ | | | | | (19) ...to here |...... | 1262 | } while (len32); | | ~~~~~ | | | | | (20) following 'false' branch (when 'len32 == 0')... | 1263 | | 1264 | vcn_next = vcn + clen; | | ~~~~~~~~~~ | | | | | (21) ...to here | 1265 | if (!run_get_entry(run, ++idx, &vcn, &lcn, &clen) || | | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (22) use of uninitialized value 'idx' here | >> fs/ntfs3/fsntfs.c:1265:22: warning: use of uninitialized value 'idx' >> [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 1265 | if (!run_get_entry(run, ++idx, &vcn, &lcn, &clen) || | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 'ntfs_read_bh': events 1-2 | | 1294 | int ntfs_read_bh(struct ntfs_sb_info *sbi, const struct runs_tree *run, u64 vbo, | | ^~~~~~~~~~~~ | | | | | (1) entry to 'ntfs_read_bh' |...... | 1298 | int err = ntfs_read_run_nb(sbi, run, vbo, rhdr, bytes, nb); | | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (2) calling 'ntfs_read_run_nb' from 'ntfs_read_bh' | +--> 'ntfs_read_run_nb': events 3-9 | | 1180 | int ntfs_read_run_nb(struct ntfs_sb_info *sbi, const struct runs_tree *run, | | ^~~~~~~~~~~~~~~~ | | | | | (3) entry to 'ntfs_read_run_nb' |...... | 1192 | size_t idx; | | ~~~ | | | | | (4) region created on stack here |...... | 1195 | if (!run) { | | ~ | | | | | (5) following 'true' branch (when 'run' is NULL)... | 1196 | /* first reading of $Volume + $MFTMirr + LogFile goes here*/ | 1197 | if (vbo > MFT_REC_VOL * sbi->record_size) { | | ~ ~~~~~~~~~~~~~~~~ | | | | | | | (6) ...to here | | (7) following 'false' branch... |...... | 1203 | lbo = vbo + sbi->mft.lbo; | | ~~~~~~~~~~~~ | | | | | (8) ...to here |...... | 1234 | bh = ntfs_bread(sb, block); | | ~~~~~~~~~~~~~~~~~~~~~ | | | | | (9) calling 'ntfs_bread' from 'ntfs_read_run_nb' | +--> 'ntfs_bread': events 10-11 | |fs/ntfs3/ntfs_fs.h:962:35: | 962 | static inline struct buffer_head *ntfs_bread(struct super_block *sb, | | ^~~~~~~~~~ | | | | | (10) entry to 'ntfs_bread' |...... | 967 | if (bh) | | ~ | | | | | (11) following 'true' branch... | 'ntfs_bread': event 12 | |cc1: | (12): ...to here | <------+ | 'ntfs_read_run_nb': events 13-18 | |fs/ntfs3/fsntfs.c:1234:30: | 1234 | bh = ntfs_bread(sb, block); | | ^~~~~~~~~~~~~~~~~~~~~ | | | | | (13) returning to 'ntfs_read_run_nb' from 'ntfs_bread' | 1235 | if (!bh) { | | ~ | | | | | (14) following 'false' branch (when 'bh' is non-NULL)... |...... | 1240 | if (buf) { | | ~ | | | | | (15) ...to here | | (16) following 'false' branch (when 'buf' is NULL)... |...... | 1245 | if (!nb) { | | ~ | | | | | (17) ...to here | | (18) following 'true' branch (when 'nb' is NULL)... | 'ntfs_read_run_nb': event 19 | |include/linux/compiler.h:86:20: | 86 | # define barrier() __asm__ __volatile__("": : :"memory") | | ^~~~~~~ | | | | | (19) ...to here include/asm-generic/barrier.h:152:33: note: in expansion of macro 'barrier' | 152 | #define smp_mb__before_atomic() barrier() -- | 11 | #define Add2Ptr(P, I) ((void *)((u8 *)(P) + (I))) | | ~^~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (28) ...to here fs/ntfs3/ntfs.h:665:16: note: in expansion of macro 'Add2Ptr' | 665 | return Add2Ptr(e, le16_to_cpu(e->size)); | | ^~~~~~~ | 'indx_delete_entry': event 29 | |fs/ntfs3/index.c:2289:23: | 2289 | err = indx_get_entry_to_replace(indx, ni, next, &re, fnd2); | | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (29) calling 'indx_get_entry_to_replace' from 'indx_delete_entry' | +--> 'indx_get_entry_to_replace': event 30 | | 2104 | static int indx_get_entry_to_replace(struct ntfs_index *indx, | | ^~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (30) entry to 'indx_get_entry_to_replace' | 'indx_get_entry_to_replace': events 31-32 | | 2117 | *de_to_replace = NULL; |...... | 2123 | err = indx_read(indx, ni, vbn, &n); | | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (32) calling 'indx_read' from 'indx_get_entry_to_replace' | +--> 'indx_read': events 33-34 | | 1016 | int indx_read(struct ntfs_index *indx, struct ntfs_inode *ni, CLST vbn, | | ^~~~~~~~~ | | | | | (33) entry to 'indx_read' |...... | 1028 | if (!in) { | | ~ | | | | | (34) following 'true' branch (when 'in' is NULL)... | 'indx_read': event 35 | |fs/ntfs3/debug.h:59:33: | 59 | #define ntfs_zalloc(s) kzalloc(s, GFP_NOFS) | | ^~~~~~~~~~~~~~~~~~~~ | | | | | (35) ...to here fs/ntfs3/index.c:1029:22: note: in expansion of macro 'ntfs_zalloc' | 1029 | in = ntfs_zalloc(sizeof(struct indx_node)); | | ^~~~~~~~~~~ | 'indx_read': events 36-37 | | 1030 | if (!in) | | ^ | | | | | (36) following 'false' branch (when 'in' is non-NULL)... |...... | 1036 | ib = in->index; | | ~~~~~~~~~~~~~~ | | | | | (37) ...to here | <------+ | 'indx_get_entry_to_replace': events 38-41 | | 627 | if (i < 0 || i >= ARRAY_SIZE(fnd->nodes)) | | ~ | | | | | (41) following 'true' branch... |...... | 2123 | err = indx_read(indx, ni, vbn, &n); | | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (38) returning to 'indx_get_entry_to_replace' from 'indx_read' | 2124 | if (err) | | ~ | | | | | (39) following 'false' branch (when 'err == 0')... |...... | 2127 | e = hdr_first_de(&n->index->ihdr); | | ~~ | | | | | (40) ...to here | 'indx_get_entry_to_replace': events 42-43 | |fs/ntfs3/ntfs.h:677:17: | 677 | return e->flags & NTFS_IE_LAST; | | ~^~~~~~~ | | | | | (42) ...to here | | (43) dereference of NULL 'e' | fs/ntfs3/index.c: In function 'indx_read': >> fs/ntfs3/index.c:1025:27: warning: use of uninitialized value '*node' >> [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 1025 | struct indx_node *in = *node; | ^~ 'indx_delete_entry': events 1-2 | | 2199 | int indx_delete_entry(struct ntfs_index *indx, struct ntfs_inode *ni, | | ^~~~~~~~~~~~~~~~~ | | | | | (1) entry to 'indx_delete_entry' |...... | 2218 | if (!fnd) { | | ~ | | | | | (2) following 'false' branch... | 'indx_delete_entry': event 3 | |fs/ntfs3/debug.h:59:33: | 59 | #define ntfs_zalloc(s) kzalloc(s, GFP_NOFS) | | ^~~~~~~~~~~~~~~~~~~~ | | | | | (3) ...to here fs/ntfs3/ntfs_fs.h:603:16: note: in expansion of macro 'ntfs_zalloc' | 603 | return ntfs_zalloc(sizeof(struct ntfs_fnd)); | | ^~~~~~~~~~~ | 'indx_delete_entry': events 4-6 | |fs/ntfs3/index.c:2224:12: | 2224 | if (!fnd2) { | | ^ | | | | | (4) following 'false' branch... |...... | 2229 | root = indx_get_root(indx, ni, &attr, &mi); | | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (5) ...to here | | (6) calling 'indx_get_root' from 'indx_delete_entry' | +--> 'indx_get_root': events 7-11 | | 985 | struct INDEX_ROOT *indx_get_root(struct ntfs_index *indx, struct ntfs_inode *ni, | | ^~~~~~~~~~~~~ | | | | | (7) entry to 'indx_get_root' |...... | 994 | if (!a) | | ~ | | | | | (8) following 'false' branch (when 'a' is non-NULL)... |...... | 997 | if (attr) | | ~ | | | | | (9) ...to here | | (10) following 'true' branch (when 'attr' is non-NULL)... | 998 | *attr = a; | | ~~~~~~~~~ | | | | | (11) ...to here | 'indx_get_root': event 12 | |fs/ntfs3/ntfs.h:450:12: | 450 | if (attr->non_res) | | ^ | | | | | (12) following 'false' branch... | 'indx_get_root': events 13-14 | | 453 | asize = le32_to_cpu(attr->size); |...... | 456 | if (asize < datasize + off) | | ~ | | | | | (14) following 'false' branch... | 'indx_get_root': events 15-16 | | 459 | rsize = le32_to_cpu(attr->res.data_size); | 460 | if (rsize < datasize) | | ~ | | | | | (16) following 'false' branch (when 'rsize > 31')... | 'indx_get_root': event 17 | |fs/ntfs3/debug.h:11:34: | 11 | #define Add2Ptr(P, I) ((void *)((u8 *)(P) + (I))) | | ~^~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | | (17) ...to here fs/ntfs3/ntfs.h:463:16: note: in expansion of macro 'Add2Ptr' | 463 | return Add2Ptr(attr, off); | | ^~~~~~~ | <------+ | 'indx_delete_entry': events 18-27 vim +/clen +1264 fs/ntfs3/fsntfs.c 82cae269cfa953 Konstantin Komarov 2021-08-13 1179 82cae269cfa953 Konstantin Komarov 2021-08-13 1180 int ntfs_read_run_nb(struct ntfs_sb_info *sbi, const struct runs_tree *run, 82cae269cfa953 Konstantin Komarov 2021-08-13 1181 u64 vbo, void *buf, u32 bytes, struct ntfs_buffers *nb) 82cae269cfa953 Konstantin Komarov 2021-08-13 1182 { 82cae269cfa953 Konstantin Komarov 2021-08-13 1183 int err; 82cae269cfa953 Konstantin Komarov 2021-08-13 1184 struct super_block *sb = sbi->sb; 82cae269cfa953 Konstantin Komarov 2021-08-13 1185 u32 blocksize = sb->s_blocksize; 82cae269cfa953 Konstantin Komarov 2021-08-13 1186 u8 cluster_bits = sbi->cluster_bits; 82cae269cfa953 Konstantin Komarov 2021-08-13 1187 u32 off = vbo & sbi->cluster_mask; 82cae269cfa953 Konstantin Komarov 2021-08-13 1188 u32 nbh = 0; 82cae269cfa953 Konstantin Komarov 2021-08-13 1189 CLST vcn_next, vcn = vbo >> cluster_bits; 82cae269cfa953 Konstantin Komarov 2021-08-13 1190 CLST lcn, clen; 82cae269cfa953 Konstantin Komarov 2021-08-13 1191 u64 lbo, len; 82cae269cfa953 Konstantin Komarov 2021-08-13 1192 size_t idx; 82cae269cfa953 Konstantin Komarov 2021-08-13 1193 struct buffer_head *bh; 82cae269cfa953 Konstantin Komarov 2021-08-13 1194 82cae269cfa953 Konstantin Komarov 2021-08-13 1195 if (!run) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1196 /* first reading of $Volume + $MFTMirr + LogFile goes here*/ 82cae269cfa953 Konstantin Komarov 2021-08-13 1197 if (vbo > MFT_REC_VOL * sbi->record_size) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1198 err = -ENOENT; 82cae269cfa953 Konstantin Komarov 2021-08-13 1199 goto out; 82cae269cfa953 Konstantin Komarov 2021-08-13 1200 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1201 82cae269cfa953 Konstantin Komarov 2021-08-13 1202 /* use absolute boot's 'MFTCluster' to read record */ 82cae269cfa953 Konstantin Komarov 2021-08-13 1203 lbo = vbo + sbi->mft.lbo; 82cae269cfa953 Konstantin Komarov 2021-08-13 1204 len = sbi->record_size; 82cae269cfa953 Konstantin Komarov 2021-08-13 1205 } else if (!run_lookup_entry(run, vcn, &lcn, &clen, &idx)) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1206 err = -ENOENT; 82cae269cfa953 Konstantin Komarov 2021-08-13 1207 goto out; 82cae269cfa953 Konstantin Komarov 2021-08-13 1208 } else { 82cae269cfa953 Konstantin Komarov 2021-08-13 1209 if (lcn == SPARSE_LCN) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1210 err = -EINVAL; 82cae269cfa953 Konstantin Komarov 2021-08-13 1211 goto out; 82cae269cfa953 Konstantin Komarov 2021-08-13 1212 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1213 82cae269cfa953 Konstantin Komarov 2021-08-13 1214 lbo = ((u64)lcn << cluster_bits) + off; 82cae269cfa953 Konstantin Komarov 2021-08-13 1215 len = ((u64)clen << cluster_bits) - off; 82cae269cfa953 Konstantin Komarov 2021-08-13 1216 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1217 82cae269cfa953 Konstantin Komarov 2021-08-13 1218 off = lbo & (blocksize - 1); 82cae269cfa953 Konstantin Komarov 2021-08-13 1219 if (nb) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1220 nb->off = off; 82cae269cfa953 Konstantin Komarov 2021-08-13 1221 nb->bytes = bytes; 82cae269cfa953 Konstantin Komarov 2021-08-13 1222 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1223 82cae269cfa953 Konstantin Komarov 2021-08-13 1224 for (;;) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1225 u32 len32 = len >= bytes ? bytes : len; 82cae269cfa953 Konstantin Komarov 2021-08-13 1226 sector_t block = lbo >> sb->s_blocksize_bits; 82cae269cfa953 Konstantin Komarov 2021-08-13 1227 82cae269cfa953 Konstantin Komarov 2021-08-13 1228 do { 82cae269cfa953 Konstantin Komarov 2021-08-13 1229 u32 op = blocksize - off; 82cae269cfa953 Konstantin Komarov 2021-08-13 1230 82cae269cfa953 Konstantin Komarov 2021-08-13 1231 if (op > len32) 82cae269cfa953 Konstantin Komarov 2021-08-13 1232 op = len32; 82cae269cfa953 Konstantin Komarov 2021-08-13 1233 82cae269cfa953 Konstantin Komarov 2021-08-13 1234 bh = ntfs_bread(sb, block); 82cae269cfa953 Konstantin Komarov 2021-08-13 1235 if (!bh) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1236 err = -EIO; 82cae269cfa953 Konstantin Komarov 2021-08-13 1237 goto out; 82cae269cfa953 Konstantin Komarov 2021-08-13 1238 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1239 82cae269cfa953 Konstantin Komarov 2021-08-13 1240 if (buf) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1241 memcpy(buf, bh->b_data + off, op); 82cae269cfa953 Konstantin Komarov 2021-08-13 1242 buf = Add2Ptr(buf, op); 82cae269cfa953 Konstantin Komarov 2021-08-13 1243 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1244 82cae269cfa953 Konstantin Komarov 2021-08-13 1245 if (!nb) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1246 put_bh(bh); 82cae269cfa953 Konstantin Komarov 2021-08-13 1247 } else if (nbh >= ARRAY_SIZE(nb->bh)) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1248 err = -EINVAL; 82cae269cfa953 Konstantin Komarov 2021-08-13 1249 goto out; 82cae269cfa953 Konstantin Komarov 2021-08-13 1250 } else { 82cae269cfa953 Konstantin Komarov 2021-08-13 1251 nb->bh[nbh++] = bh; 82cae269cfa953 Konstantin Komarov 2021-08-13 1252 nb->nbufs = nbh; 82cae269cfa953 Konstantin Komarov 2021-08-13 1253 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1254 82cae269cfa953 Konstantin Komarov 2021-08-13 1255 bytes -= op; 82cae269cfa953 Konstantin Komarov 2021-08-13 1256 if (!bytes) 82cae269cfa953 Konstantin Komarov 2021-08-13 1257 return 0; 82cae269cfa953 Konstantin Komarov 2021-08-13 1258 len32 -= op; 82cae269cfa953 Konstantin Komarov 2021-08-13 1259 block += 1; 82cae269cfa953 Konstantin Komarov 2021-08-13 1260 off = 0; 82cae269cfa953 Konstantin Komarov 2021-08-13 1261 82cae269cfa953 Konstantin Komarov 2021-08-13 1262 } while (len32); 82cae269cfa953 Konstantin Komarov 2021-08-13 1263 82cae269cfa953 Konstantin Komarov 2021-08-13 @1264 vcn_next = vcn + clen; 82cae269cfa953 Konstantin Komarov 2021-08-13 @1265 if (!run_get_entry(run, ++idx, &vcn, &lcn, &clen) || 82cae269cfa953 Konstantin Komarov 2021-08-13 1266 vcn != vcn_next) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1267 err = -ENOENT; 82cae269cfa953 Konstantin Komarov 2021-08-13 1268 goto out; 82cae269cfa953 Konstantin Komarov 2021-08-13 1269 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1270 82cae269cfa953 Konstantin Komarov 2021-08-13 1271 if (lcn == SPARSE_LCN) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1272 err = -EINVAL; 82cae269cfa953 Konstantin Komarov 2021-08-13 1273 goto out; 82cae269cfa953 Konstantin Komarov 2021-08-13 1274 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1275 82cae269cfa953 Konstantin Komarov 2021-08-13 1276 lbo = ((u64)lcn << cluster_bits); 82cae269cfa953 Konstantin Komarov 2021-08-13 1277 len = ((u64)clen << cluster_bits); 82cae269cfa953 Konstantin Komarov 2021-08-13 1278 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1279 82cae269cfa953 Konstantin Komarov 2021-08-13 1280 out: 82cae269cfa953 Konstantin Komarov 2021-08-13 1281 if (!nbh) 82cae269cfa953 Konstantin Komarov 2021-08-13 1282 return err; 82cae269cfa953 Konstantin Komarov 2021-08-13 1283 82cae269cfa953 Konstantin Komarov 2021-08-13 1284 while (nbh) { 82cae269cfa953 Konstantin Komarov 2021-08-13 1285 put_bh(nb->bh[--nbh]); 82cae269cfa953 Konstantin Komarov 2021-08-13 1286 nb->bh[nbh] = NULL; 82cae269cfa953 Konstantin Komarov 2021-08-13 1287 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1288 82cae269cfa953 Konstantin Komarov 2021-08-13 1289 nb->nbufs = 0; 82cae269cfa953 Konstantin Komarov 2021-08-13 1290 return err; 82cae269cfa953 Konstantin Komarov 2021-08-13 1291 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1292 :::::: The code at line 1264 was first introduced by commit :::::: 82cae269cfa953032fbb8980a7d554d60fb00b17 fs/ntfs3: Add initialization of super block :::::: TO: Konstantin Komarov <almaz.alexandrov...@paragon-software.com> :::::: CC: Konstantin Komarov <almaz.alexandrov...@paragon-software.com> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
