Hi,
Please find the latest report on new defect(s) introduced to coreboot found
with Coverity Scan.
78 new defect(s) introduced to coreboot found with Coverity Scan.
88 defect(s), reported by Coverity Scan earlier, were marked fixed in the
recent build analyzed by Coverity Scan.
New defect(s) Reported-by: Coverity Scan
Showing 20 of 78 defect(s)
** CID 1354615: Memory - illegal accesses (OVERRUN)
/src/cpu/ti/am335x/gpio.c: 30 in gpio_regs_and_bit()
________________________________________________________________________________________________________
*** CID 1354615: Memory - illegal accesses (OVERRUN)
/src/cpu/ti/am335x/gpio.c: 30 in gpio_regs_and_bit()
24
25 if (bank > ARRAY_SIZE(am335x_gpio_banks)) {
26 printk(BIOS_ERR, "Bad gpio index %d.\n", gpio);
27 return NULL;
28 }
29 *bit = 1 << (gpio % 32);
>>> CID 1354615: Memory - illegal accesses (OVERRUN)
>>> Overrunning array "am335x_gpio_banks" of 4 4-byte elements at element
>>> index 4 (byte offset 16) using index "bank" (which evaluates to 4).
30 return am335x_gpio_banks[bank];
31 }
32
33 void am335x_disable_gpio_irqs(void)
34 {
35 int i;
** CID 1353793: Resource leaks (RESOURCE_LEAK)
/util/nvidia/cbootimage/src/data_layout.c: 1096 in resign_bl()
________________________________________________________________________________________________________
*** CID 1353793: Resource leaks (RESOURCE_LEAK)
/util/nvidia/cbootimage/src/data_layout.c: 1096 in resign_bl()
1090
1091 if (read_from_image(context->input_image_filename,
1092 offset, bl_length,
1093 &image, &image_actual_size,
file_type_bin)) {
1094 printf("Error reading image file %s.\n",
1095 context->input_image_filename);
>>> CID 1353793: Resource leaks (RESOURCE_LEAK)
>>> Variable "image" going out of scope leaks the storage it points to.
1096 return -ENOMEM;
1097 }
1098
1099 pages_in_image = ICEIL(image_actual_size, page_size);
1100
1101 /* Create a local copy of the bl */
** CID 1353781: Control flow issues (NO_EFFECT)
/util/nvidia/cbootimage/src/cbootimage.c: 242 in main()
________________________________________________________________________________________________________
*** CID 1353781: Control flow issues (NO_EFFECT)
/util/nvidia/cbootimage/src/cbootimage.c: 242 in main()
236 context.input_image_filename);
237 goto fail;
238 }
239
240 /* Get BCT_SIZE from input image file */
241 bct_size = get_bct_size_from_image(&context);
>>> CID 1353781: Control flow issues (NO_EFFECT)
>>> This less-than-zero comparison of an unsigned value is never true.
>>> "bct_size < 0U".
242 if (bct_size < 0) {
243 printf("Error: Invalid input image file %s\n",
244 context.input_image_filename);
245 goto fail;
246 }
247
** CID 1353028: Error handling issues (NEGATIVE_RETURNS)
/util/amdfwtool/amdfwtool.c: 284 in integrate_psp_firmwares()
________________________________________________________________________________________________________
*** CID 1353028: Error handling issues (NEGATIVE_RETURNS)
/util/amdfwtool/amdfwtool.c: 284 in integrate_psp_firmwares()
278 pspdir[4+4*i+2] = 1;
279 pspdir[4+4*i+3] = 0;
280 } else if (fw_table[i].filename != NULL) {
281 pspdir[4+4*i+0] = fw_table[i].type;
282
283 fd = open (fw_table[i].filename, O_RDONLY);
>>> CID 1353028: Error handling issues (NEGATIVE_RETURNS)
>>> "fd" is passed to a parameter that cannot be negative. [Note: The
>>> source code implementation of the function has been overridden by a builtin
>>> model.]
284 fstat(fd, &fd_stat);
285 pspdir[4+4*i+1] = fd_stat.st_size;
286
287 pspdir[4+4*i+2] = pos + ROM_BASE_ADDRESS;
288 pspdir[4+4*i+3] = 0;
289
** CID 1353027: Error handling issues (NEGATIVE_RETURNS)
/util/amdfwtool/amdfwtool.c: 239 in integrate_firmwares()
________________________________________________________________________________________________________
*** CID 1353027: Error handling issues (NEGATIVE_RETURNS)
/util/amdfwtool/amdfwtool.c: 239 in integrate_firmwares()
233 struct stat fd_stat;
234 int i;
235
236 for (i = 0; fw_table[i].type != AMD_FW_INVALID; i ++) {
237 if (fw_table[i].filename != NULL) {
238 fd = open (fw_table[i].filename, O_RDONLY);
>>> CID 1353027: Error handling issues (NEGATIVE_RETURNS)
>>> "fd" is passed to a parameter that cannot be negative. [Note: The
>>> source code implementation of the function has been overridden by a builtin
>>> model.]
239 fstat(fd, &fd_stat);
240
241 switch (fw_table[i].type) {
242 case AMD_FW_IMC:
243 pos = ALIGN(pos, 0x10000);
244 romsig[1] = pos + ROM_BASE_ADDRESS;
** CID 1353022: Error handling issues (CHECKED_RETURN)
/util/nvidia/cbootimage/src/cbootimage.c: 297 in main()
________________________________________________________________________________________________________
*** CID 1353022: Error handling issues (CHECKED_RETURN)
/util/nvidia/cbootimage/src/cbootimage.c: 297 in main()
291 begin_update(&context);
292 /* Signing the bct. */
293 e = sign_bct(&context, context.bct);
294 if (e != 0)
295 printf("Signing BCT failed, error: %d.\n", e);
296
>>> CID 1353022: Error handling issues (CHECKED_RETURN)
>>> Calling "fwrite" without checking return value (as is done elsewhere 33
>>> out of 41 times).
297 fwrite(context.bct, 1, context.bct_size,
298 context.raw_file);
299 printf("New BCT file %s has been successfully
generated!\n",
300 context.output_image_filename);
301 goto fail;
302 }
** CID 1353021: Error handling issues (CHECKED_RETURN)
/util/amdfwtool/amdfwtool.c: 290 in integrate_psp_firmwares()
________________________________________________________________________________________________________
*** CID 1353021: Error handling issues (CHECKED_RETURN)
/util/amdfwtool/amdfwtool.c: 290 in integrate_psp_firmwares()
284 fstat(fd, &fd_stat);
285 pspdir[4+4*i+1] = fd_stat.st_size;
286
287 pspdir[4+4*i+2] = pos + ROM_BASE_ADDRESS;
288 pspdir[4+4*i+3] = 0;
289
>>> CID 1353021: Error handling issues (CHECKED_RETURN)
>>> "read(int, void *, size_t)" returns the number of bytes read, but it is
>>> ignored.
290 read (fd, base+pos, fd_stat.st_size);
291
292 pos += fd_stat.st_size;
293 pos = ALIGN(pos, 0x100);
294 close (fd);
295 } else {
** CID 1353020: Error handling issues (CHECKED_RETURN)
/util/amdfwtool/amdfwtool.c: 284 in integrate_psp_firmwares()
________________________________________________________________________________________________________
*** CID 1353020: Error handling issues (CHECKED_RETURN)
/util/amdfwtool/amdfwtool.c: 284 in integrate_psp_firmwares()
278 pspdir[4+4*i+2] = 1;
279 pspdir[4+4*i+3] = 0;
280 } else if (fw_table[i].filename != NULL) {
281 pspdir[4+4*i+0] = fw_table[i].type;
282
283 fd = open (fw_table[i].filename, O_RDONLY);
>>> CID 1353020: Error handling issues (CHECKED_RETURN)
>>> Calling "fstat(fd, &fd_stat)" without checking return value. This
>>> library function may fail and return an error code. [Note: The source code
>>> implementation of the function has been overridden by a builtin model.]
284 fstat(fd, &fd_stat);
285 pspdir[4+4*i+1] = fd_stat.st_size;
286
287 pspdir[4+4*i+2] = pos + ROM_BASE_ADDRESS;
288 pspdir[4+4*i+3] = 0;
289
** CID 1353019: Error handling issues (CHECKED_RETURN)
/util/amdfwtool/amdfwtool.c: 257 in integrate_firmwares()
________________________________________________________________________________________________________
*** CID 1353019: Error handling issues (CHECKED_RETURN)
/util/amdfwtool/amdfwtool.c: 257 in integrate_firmwares()
251 break;
252 default:
253 /* Error */
254 break;
255 }
256
>>> CID 1353019: Error handling issues (CHECKED_RETURN)
>>> "read(int, void *, size_t)" returns the number of bytes read, but it is
>>> ignored.
257 read (fd, base+pos, fd_stat.st_size);
258
259 pos += fd_stat.st_size;
260 pos = ALIGN(pos, 0x100);
261 close (fd);
262 }
** CID 1353018: Error handling issues (CHECKED_RETURN)
/util/amdfwtool/amdfwtool.c: 239 in integrate_firmwares()
________________________________________________________________________________________________________
*** CID 1353018: Error handling issues (CHECKED_RETURN)
/util/amdfwtool/amdfwtool.c: 239 in integrate_firmwares()
233 struct stat fd_stat;
234 int i;
235
236 for (i = 0; fw_table[i].type != AMD_FW_INVALID; i ++) {
237 if (fw_table[i].filename != NULL) {
238 fd = open (fw_table[i].filename, O_RDONLY);
>>> CID 1353018: Error handling issues (CHECKED_RETURN)
>>> Calling "fstat(fd, &fd_stat)" without checking return value. This
>>> library function may fail and return an error code. [Note: The source code
>>> implementation of the function has been overridden by a builtin model.]
239 fstat(fd, &fd_stat);
240
241 switch (fw_table[i].type) {
242 case AMD_FW_IMC:
243 pos = ALIGN(pos, 0x10000);
244 romsig[1] = pos + ROM_BASE_ADDRESS;
** CID 1347367: Control flow issues (DEADCODE)
/util/cbfstool/elfheaders.c: 971 in write_phdrs()
________________________________________________________________________________________________________
*** CID 1347367: Control flow issues (DEADCODE)
/util/cbfstool/elfheaders.c: 971 in write_phdrs()
965 if (!(sec->shdr.sh_flags & SHF_ALLOC))
966 continue;
967
968 if (!section_consecutive(ew, i)) {
969 /* Write out previously set phdr. */
970 if (num_written != 0) {
>>> CID 1347367: Control flow issues (DEADCODE)
>>> Execution cannot reach this statement: "phdr_write(ew, phdrs, &phdr);".
971 phdr_write(ew, phdrs, &phdr);
972 num_written++;
973 }
974 phdr.p_type = PT_LOAD;
975 phdr.p_offset = sec->shdr.sh_offset;
976 phdr.p_vaddr = sec->shdr.sh_addr;
** CID 1347358: Error handling issues (NEGATIVE_RETURNS)
/util/amdfwtool/amdfwtool.c: 586 in main()
________________________________________________________________________________________________________
*** CID 1347358: Error handling issues (NEGATIVE_RETURNS)
/util/amdfwtool/amdfwtool.c: 586 in main()
580 current = integrate_psp_firmwares(rom, current,
psp2dir, amd_psp2_fw_table);
581 #endif
582 }
583 #endif
584
585 targetfd = open(output, O_RDWR | O_CREAT | O_TRUNC, 0666);
>>> CID 1347358: Error handling issues (NEGATIVE_RETURNS)
>>> "targetfd" is passed to a parameter that cannot be negative.
586 write(targetfd, amd_romsig, current - AMD_ROMSIG_OFFSET);
587 close(targetfd);
588 free(rom);
589
590 return 0;
** CID 1347335: (UNINIT)
/util/cbfstool/elfheaders.c: 995 in write_phdrs()
/util/cbfstool/elfheaders.c: 992 in write_phdrs()
/util/cbfstool/elfheaders.c: 994 in write_phdrs()
/util/cbfstool/elfheaders.c: 996 in write_phdrs()
________________________________________________________________________________________________________
*** CID 1347335: (UNINIT)
/util/cbfstool/elfheaders.c: 995 in write_phdrs()
989 * (sh_size == file size). This is standard in
that
990 * an ELF section doesn't have a file size
component. */
991 if (sec->shdr.sh_flags & SHF_EXECINSTR)
992 phdr.p_flags |= PF_X | PF_R;
993 if (sec->shdr.sh_flags & SHF_WRITE)
994 phdr.p_flags |= PF_W;
>>> CID 1347335: (UNINIT)
>>> Using uninitialized value "phdr.p_filesz".
995 phdr.p_filesz += buffer_size(&sec->content);
996 phdr.p_memsz += sec->shdr.sh_size;
997 }
998 }
999
1000 /* Write out the last phdr. */
/util/cbfstool/elfheaders.c: 992 in write_phdrs()
986 } else {
987 /* Accumulate file size and memsize. The
assumption
988 * is that each section is either NOBITS or full
989 * (sh_size == file size). This is standard in
that
990 * an ELF section doesn't have a file size
component. */
991 if (sec->shdr.sh_flags & SHF_EXECINSTR)
>>> CID 1347335: (UNINIT)
>>> Using uninitialized value "phdr.p_flags".
992 phdr.p_flags |= PF_X | PF_R;
993 if (sec->shdr.sh_flags & SHF_WRITE)
994 phdr.p_flags |= PF_W;
995 phdr.p_filesz += buffer_size(&sec->content);
996 phdr.p_memsz += sec->shdr.sh_size;
997 }
/util/cbfstool/elfheaders.c: 994 in write_phdrs()
988 * is that each section is either NOBITS or full
989 * (sh_size == file size). This is standard in
that
990 * an ELF section doesn't have a file size
component. */
991 if (sec->shdr.sh_flags & SHF_EXECINSTR)
992 phdr.p_flags |= PF_X | PF_R;
993 if (sec->shdr.sh_flags & SHF_WRITE)
>>> CID 1347335: (UNINIT)
>>> Using uninitialized value "phdr.p_flags".
994 phdr.p_flags |= PF_W;
995 phdr.p_filesz += buffer_size(&sec->content);
996 phdr.p_memsz += sec->shdr.sh_size;
997 }
998 }
999
/util/cbfstool/elfheaders.c: 996 in write_phdrs()
990 * an ELF section doesn't have a file size
component. */
991 if (sec->shdr.sh_flags & SHF_EXECINSTR)
992 phdr.p_flags |= PF_X | PF_R;
993 if (sec->shdr.sh_flags & SHF_WRITE)
994 phdr.p_flags |= PF_W;
995 phdr.p_filesz += buffer_size(&sec->content);
>>> CID 1347335: (UNINIT)
>>> Using uninitialized value "phdr.p_memsz".
996 phdr.p_memsz += sec->shdr.sh_size;
997 }
998 }
999
1000 /* Write out the last phdr. */
1001 if (num_written != ew->ehdr.e_phnum)
** CID 1347333: Memory - illegal accesses (UNINIT)
/util/amdfwtool/amdfwtool.c: 585 in main()
________________________________________________________________________________________________________
*** CID 1347333: Memory - illegal accesses (UNINIT)
/util/amdfwtool/amdfwtool.c: 585 in main()
579 #else
580 current = integrate_psp_firmwares(rom, current,
psp2dir, amd_psp2_fw_table);
581 #endif
582 }
583 #endif
584
>>> CID 1347333: Memory - illegal accesses (UNINIT)
>>> Using uninitialized value "output" when calling "open".
585 targetfd = open(output, O_RDWR | O_CREAT | O_TRUNC, 0666);
586 write(targetfd, amd_romsig, current - AMD_ROMSIG_OFFSET);
587 close(targetfd);
588 free(rom);
589
590 return 0;
** CID 1325840: Memory - illegal accesses (OVERRUN)
/util/cbfstool/cbfs_image.c: 1155 in cbfs_print_entry_info()
________________________________________________________________________________________________________
*** CID 1325840: Memory - illegal accesses (OVERRUN)
/util/cbfstool/cbfs_image.c: 1155 in cbfs_print_entry_info()
1149 while ((hash = cbfs_file_get_next_hash(entry, hash)) != NULL) {
1150 unsigned int hash_type = ntohl(hash->hash_type);
1151 if (hash_type > CBFS_NUM_SUPPORTED_HASHES) {
1152 fprintf(fp, "invalid hash type %d\n",
hash_type);
1153 break;
1154 }
>>> CID 1325840: Memory - illegal accesses (OVERRUN)
>>> Overrunning array "widths_cbfs_hash" of 4 8-byte elements at element
>>> index 4 (byte offset 32) using index "hash_type" (which evaluates to 4).
1155 size_t hash_len = widths_cbfs_hash[hash_type];
1156 char *hash_str = bintohex(hash->hash_data, hash_len);
1157 uint8_t local_hash[hash_len];
1158 if (vb2_digest_buffer(CBFS_SUBHEADER(entry),
1159 ntohl(entry->len), hash_type, local_hash,
1160 hash_len) != VB2_SUCCESS) {
** CID 1325836: Resource leaks (RESOURCE_LEAK)
/util/cbfstool/cbfs_image.c: 1162 in cbfs_print_entry_info()
________________________________________________________________________________________________________
*** CID 1325836: Resource leaks (RESOURCE_LEAK)
/util/cbfstool/cbfs_image.c: 1162 in cbfs_print_entry_info()
1156 char *hash_str = bintohex(hash->hash_data, hash_len);
1157 uint8_t local_hash[hash_len];
1158 if (vb2_digest_buffer(CBFS_SUBHEADER(entry),
1159 ntohl(entry->len), hash_type, local_hash,
1160 hash_len) != VB2_SUCCESS) {
1161 fprintf(fp, "failed to hash '%s'\n", name);
>>> CID 1325836: Resource leaks (RESOURCE_LEAK)
>>> Variable "hash_str" going out of scope leaks the storage it points to.
1162 break;
1163 }
1164 int valid = memcmp(local_hash, hash->hash_data,
hash_len) == 0;
1165 const char *valid_str = valid ? "valid" : "invalid";
1166
1167 fprintf(fp, " hash %s:%s %s\n",
** CID 1323515: Error handling issues (CHECKED_RETURN)
/util/broadcom/secimage/sbi.c: 112 in CreateSecureBootImage()
________________________________________________________________________________________________________
*** CID 1323515: Error handling issues (CHECKED_RETURN)
/util/broadcom/secimage/sbi.c: 112 in CreateSecureBootImage()
106 } else {
107 return SBIUsage();
108 }
109 --ac, ++av;
110 }
111
>>> CID 1323515: Error handling issues (CHECKED_RETURN)
>>> Calling "stat(bl, &file_stat)" without checking return value. This
>>> library function may fail and return an error code. [Note: The source code
>>> implementation of the function has been overridden by a builtin model.]
112 stat(bl, &file_stat);
113 filesize = file_stat.st_size + MIN_SIZE;
114 buf = calloc(sizeof(uint8_t), filesize);
115
116 if (buf == NULL) {
117 puts("Memory allocation error");
** CID 1323512: Null pointer dereferences (FORWARD_NULL)
/util/broadcom/secimage/sbi.c: 112 in CreateSecureBootImage()
________________________________________________________________________________________________________
*** CID 1323512: Null pointer dereferences (FORWARD_NULL)
/util/broadcom/secimage/sbi.c: 112 in CreateSecureBootImage()
106 } else {
107 return SBIUsage();
108 }
109 --ac, ++av;
110 }
111
>>> CID 1323512: Null pointer dereferences (FORWARD_NULL)
>>> Passing null pointer "bl" to "stat", which dereferences it. [Note: The
>>> source code implementation of the function has been overridden by a builtin
>>> model.]
112 stat(bl, &file_stat);
113 filesize = file_stat.st_size + MIN_SIZE;
114 buf = calloc(sizeof(uint8_t), filesize);
115
116 if (buf == NULL) {
117 puts("Memory allocation error");
** CID 1323511: Null pointer dereferences (FORWARD_NULL)
/util/broadcom/secimage/sbi.c: 80 in CreateSecureBootImage()
________________________________________________________________________________________________________
*** CID 1323511: Null pointer dereferences (FORWARD_NULL)
/util/broadcom/secimage/sbi.c: 80 in CreateSecureBootImage()
74 * Purpose :
75 * Input : none
76 * Output : none
77 *---------------------------------------------------------------------*/
78 int CreateSecureBootImage(int ac, char **av)
79 {
>>> CID 1323511: Null pointer dereferences (FORWARD_NULL)
>>> Assigning: "privkey" = "NULL".
80 char *outfile, *configfile, *arg, *privkey = NULL, *bl = NULL;
81 int status = 0;
82 uint32_t sbiLen;
83 struct stat file_stat;
84 uint32_t add_header = 1;
85 outfile = *av;
** CID 1323510: Error handling issues (NEGATIVE_RETURNS)
/util/broadcom/secimage/io.c: 81 in DataRead()
________________________________________________________________________________________________________
*** CID 1323510: Error handling issues (NEGATIVE_RETURNS)
/util/broadcom/secimage/io.c: 81 in DataRead()
75 len = FileSizeGet(file);
76 if (len < *length)
77 *length = len;
78 else
79 /* Do not exceed the maximum length of the buffer */
80 len = *length;
>>> CID 1323510: Error handling issues (NEGATIVE_RETURNS)
>>> "len" is passed to a parameter that cannot be negative.
81 if (fread((uint8_t *)buf, 1, len, file) != len) {
82 printf("Error reading data (%d bytes) from file: %s\n",
83 len, filename);
84 return -1;
85 }
86 fclose(file);
________________________________________________________________________________________________________
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