* Fwd: New Defects reported by Coverity Scan for RTEMS-Newlib
[not found] <654dcb725557c_69be32c62521719a8359f9@prd-scan-dashboard-0.mail>
@ 2023-11-10 14:40 ` Joel Sherrill
0 siblings, 0 replies; 4+ messages in thread
From: Joel Sherrill @ 2023-11-10 14:40 UTC (permalink / raw)
To: Newlib
[-- Attachment #1: Type: text/plain, Size: 6891 bytes --]
The RTEMS Project scan on newlib shows that the recent change introduced a
new issue.
--joel
---------- Forwarded message ---------
From: <scan-admin@coverity.com>
Date: Fri, Nov 10, 2023 at 12:19 AM
Subject: New Defects reported by Coverity Scan for RTEMS-Newlib
To: <joel.sherrill@gmail.com>
Hi,
Please find the latest report on new defect(s) introduced to RTEMS-Newlib
found with Coverity Scan.
6 new defect(s) introduced to RTEMS-Newlib found with Coverity Scan.
2 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 6 of 6 defect(s)
** CID 423232: Uninitialized variables (UNINIT)
________________________________________________________________________________________________________
*** CID 423232: Uninitialized variables (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/sscanf.c:
469 in _sscanf_r()
463 f._bf._size = f._r = strlen (str);
464 f._read = __seofread;
465 f._ub._base = NULL;
466 f._lb._base = NULL;
467 f._file = -1; /* No file. */
468 va_start (ap, fmt);
>>> CID 423232: Uninitialized variables (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfscanf_r".
469 ret = __ssvfscanf_r (ptr, &f, fmt, ap);
470 va_end (ap);
471 return ret;
472 }
473
474 #ifdef _NANO_FORMATTED_IO
475 int
476 _siscanf_r (struct _reent *, const char *, const char *, ...)
477 _ATTRIBUTE ((__alias__("_sscanf_r")));
** CID 423231: Uninitialized variables (UNINIT)
________________________________________________________________________________________________________
*** CID 423231: Uninitialized variables (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vsiscanf.c:
58 in _vsiscanf_r()
52 f._bf._base = f._p = (unsigned char *) str;
53 f._bf._size = f._r = strlen (str);
54 f._read = __seofread;
55 f._ub._base = NULL;
56 f._lb._base = NULL;
57 f._file = -1; /* No file. */
>>> CID 423231: Uninitialized variables (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfiscanf_r".
58 return __ssvfiscanf_r (ptr, &f, fmt, ap);
** CID 423230: Uninitialized variables (UNINIT)
________________________________________________________________________________________________________
*** CID 423230: Uninitialized variables (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/siscanf.c:
100 in siscanf()
94 f._bf._size = f._r = strlen (str);
95 f._read = __seofread;
96 f._ub._base = NULL;
97 f._lb._base = NULL;
98 f._file = -1; /* No file. */
99 va_start (ap, fmt);
>>> CID 423230: Uninitialized variables (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfiscanf_r".
100 ret = __ssvfiscanf_r (_REENT, &f, fmt, ap);
101 va_end (ap);
102 return ret;
103 }
104
105 #endif /* !_REENT_ONLY */
** CID 423229: Uninitialized variables (UNINIT)
________________________________________________________________________________________________________
*** CID 423229: Uninitialized variables (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/siscanf.c:
124 in _siscanf_r()
118 f._bf._size = f._r = strlen (str);
119 f._read = __seofread;
120 f._ub._base = NULL;
121 f._lb._base = NULL;
122 f._file = -1; /* No file. */
123 va_start (ap, fmt);
>>> CID 423229: Uninitialized variables (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfiscanf_r".
124 ret = __ssvfiscanf_r (ptr, &f, fmt, ap);
125 va_end (ap);
126 return ret;
** CID 423228: Uninitialized variables (UNINIT)
________________________________________________________________________________________________________
*** CID 423228: Uninitialized variables (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/sscanf.c:
439 in sscanf()
433 f._bf._size = f._r = strlen (str);
434 f._read = __seofread;
435 f._ub._base = NULL;
436 f._lb._base = NULL;
437 f._file = -1; /* No file. */
438 va_start (ap, fmt);
>>> CID 423228: Uninitialized variables (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfscanf_r".
439 ret = __ssvfscanf_r (_REENT, &f, fmt, ap);
440 va_end (ap);
441 return ret;
442 }
443
444 #ifdef _NANO_FORMATTED_IO
** CID 423227: Uninitialized variables (UNINIT)
________________________________________________________________________________________________________
*** CID 423227: Uninitialized variables (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vsscanf.c:
64 in _vsscanf_r()
58 f._bf._base = f._p = (unsigned char *) str;
59 f._bf._size = f._r = strlen (str);
60 f._read = __seofread;
61 f._ub._base = NULL;
62 f._lb._base = NULL;
63 f._file = -1; /* No file. */
>>> CID 423227: Uninitialized variables (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfscanf_r".
64 return __ssvfscanf_r (ptr, &f, fmt, ap);
65 }
66
67 #ifdef _NANO_FORMATTED_IO
68 int
69 _vsiscanf_r (struct _reent *, const char *, const char *, __VALIST)
70 _ATTRIBUTE ((__alias__("_vsscanf_r")));
________________________________________________________________________________________________________
To view the defects in Coverity Scan visit,
https://u15810271.ct.sendgrid.net/ls/click?upn=HRESupC-2F2Czv4BOaCWWCy7my0P0qcxCbhZ31OYv50ypUUzi-2FdSNmuyRB7BEFT8xQWqa-2BcrUOdcmLJRN5wHA-2F-2BoTXFME2lv6iQTYdROp9w6g-3DQTF3_CTvEjVoKhyc6dLmJJo1u9AYIk8P8bcAbCPbBDYvYSXp1-2BJXKpwt4lXmrE0X07lEhNaO7tBL6kJfZw-2FGQ5RAQBkD-2FfM67sOR-2FBAm5aQfUHtxJk-2FCacFNPXewtLnpAdTY1WiQZdVvp2XpFZqG2vutBufgYKbMiZ0mbd5TLcHaqtAG1SNf6JuIUAMBiPHK73Z3Q3yfpbmH-2FDVUL9UIkjSmNKRHboJ-2BNTLwF-2BEVor5SVrRA-3D
To manage Coverity Scan email notifications for "joel.sherrill@gmail.com",
click
https://u15810271.ct.sendgrid.net/ls/click?upn=HRESupC-2F2Czv4BOaCWWCy7my0P0qcxCbhZ31OYv50yped04pjJnmXOsUBtKYNIXxTJDdEZ5ceQ-2BXdf-2FM1tcMIXP73MN3HxQfFTMLU5dSe8Rv0KFh7gYStOFjZD12ucRRnrjyUHOCTj7rG0E9HBcwa9CE8CGpcthnaEEfHiFVPqc-3DhjWj_CTvEjVoKhyc6dLmJJo1u9AYIk8P8bcAbCPbBDYvYSXp1-2BJXKpwt4lXmrE0X07lEhNaO7tBL6kJfZw-2FGQ5RAQBsp-2FrHGE1qFCrN1eUAbyDSLUURBk8su75Gbb68SpMXZjOf4zGYZ9SA9OnI08Y106eYEHPmV-2F8TLs-2BFUD1b8y32sPrlw0P7whD98wRlcHUwUZ5zn0TobkovFd1mH4rNSiu6wf0Ze8WbqUhKuj7wnEMT4-3D
^ permalink raw reply [flat|nested] 4+ messages in thread
* Fwd: New Defects reported by Coverity Scan for RTEMS-Newlib
[not found] <630d44245d07b_448622ac7e91099ac81e@prd-scan-dashboard-0.mail>
@ 2022-08-29 23:09 ` Joel Sherrill
2022-08-29 23:09 ` Joel Sherrill
0 siblings, 1 reply; 4+ messages in thread
From: Joel Sherrill @ 2022-08-29 23:09 UTC (permalink / raw)
To: Newlib
Hi
I quit running Coverity on newlib as part of the repositories analysed as
part of RTEMS BUT I had to update the version of cov-analysis we used and
wanted to make sure the scripting stayed working.
These issues were flagged since the last time we ran it. Some look like
they need attention.
--joel
---------- Forwarded message ---------
From: <scan-admin@coverity.com>
Date: Mon, Aug 29, 2022 at 5:56 PM
Subject: New Defects reported by Coverity Scan for RTEMS-Newlib
To: <joel.sherrill@gmail.com>
Hi,
Please find the latest report on new defect(s) introduced to RTEMS-Newlib
found with Coverity Scan.
10 new defect(s) introduced to RTEMS-Newlib found with Coverity Scan.
1 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 10 of 10 defect(s)
** CID 398779: (UNINIT)
________________________________________________________________________________________________________
*** CID 398779: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/swscanf.c:
454 in _swscanf_r()
448 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
449 f._read = __seofread;
450 f._ub._base = NULL;
451 f._lb._base = NULL;
452 f._file = -1; /* No file. */
453 va_start (ap, fmt);
>>> CID 398779: (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfwscanf_r".
454 ret = __ssvfwscanf_r (ptr, &f, fmt, ap);
455 va_end (ap);
456 return ret;
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/swscanf.c:
454 in _swscanf_r()
448 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
449 f._read = __seofread;
450 f._ub._base = NULL;
451 f._lb._base = NULL;
452 f._file = -1; /* No file. */
453 va_start (ap, fmt);
>>> CID 398779: (UNINIT)
>>> Using uninitialized value "f._ur" when calling "__ssvfwscanf_r".
454 ret = __ssvfwscanf_r (ptr, &f, fmt, ap);
455 va_end (ap);
456 return ret;
** CID 398778: High impact quality (Y2K38_SAFETY)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/sleep.c:
18 in sleep()
________________________________________________________________________________________________________
*** CID 398778: High impact quality (Y2K38_SAFETY)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/sleep.c:
18 in sleep()
12 {
13 struct timespec ts;
14
15 ts.tv_sec = seconds;
16 ts.tv_nsec = 0;
17 if (!nanosleep(&ts,&ts)) return 0;
>>> CID 398778: High impact quality (Y2K38_SAFETY)
>>> A "time_t" value is stored in an integer with too few bits to
accommodate it. The expression "ts.tv_sec" is cast to "unsigned int".
18 if (errno == EINTR) return ts.tv_sec;
19 return -1;
20 }
21
** CID 398777: (UNINIT)
________________________________________________________________________________________________________
*** CID 398777: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/swscanf.c:
432 in swscanf()
426 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
427 f._read = __seofread;
428 f._ub._base = NULL;
429 f._lb._base = NULL;
430 f._file = -1; /* No file. */
431 va_start (ap, fmt);
>>> CID 398777: (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfwscanf_r".
432 ret = __ssvfwscanf_r (_REENT, &f, fmt, ap);
433 va_end (ap);
434 return ret;
435 }
436
437 #endif /* !_REENT_ONLY */
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/swscanf.c:
432 in swscanf()
426 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
427 f._read = __seofread;
428 f._ub._base = NULL;
429 f._lb._base = NULL;
430 f._file = -1; /* No file. */
431 va_start (ap, fmt);
>>> CID 398777: (UNINIT)
>>> Using uninitialized value "f._ur" when calling "__ssvfwscanf_r".
432 ret = __ssvfwscanf_r (_REENT, &f, fmt, ap);
433 va_end (ap);
434 return ret;
435 }
436
437 #endif /* !_REENT_ONLY */
** CID 398776: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/time/time.c:
44 in time()
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/time/time.c:
45 in time()
________________________________________________________________________________________________________
*** CID 398776: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/time/time.c:
44 in time()
38 struct timeval now;
39
40 if (_gettimeofday_r (_REENT, &now, NULL) < 0)
41 now.tv_sec = (time_t) -1;
42
43 if (t)
>>> CID 398776: (UNINIT)
>>> Using uninitialized value "now.tv_sec".
44 *t = now.tv_sec;
45 return now.tv_sec;
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/time/time.c:
45 in time()
39
40 if (_gettimeofday_r (_REENT, &now, NULL) < 0)
41 now.tv_sec = (time_t) -1;
42
43 if (t)
44 *t = now.tv_sec;
>>> CID 398776: (UNINIT)
>>> Using uninitialized value "now.tv_sec".
45 return now.tv_sec;
** CID 398775: (UNINIT)
________________________________________________________________________________________________________
*** CID 398775: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vswscanf.c:
57 in _vswscanf_r()
51 f._bf._base = f._p = (unsigned char *) str;
52 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
53 f._read = __seofread;
54 f._ub._base = NULL;
55 f._lb._base = NULL;
56 f._file = -1; /* No file. */
>>> CID 398775: (UNINIT)
>>> Using uninitialized value "f._ur" when calling "__ssvfwscanf_r".
57 return __ssvfwscanf_r (ptr, &f, fmt, ap);
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vswscanf.c:
57 in _vswscanf_r()
51 f._bf._base = f._p = (unsigned char *) str;
52 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
53 f._read = __seofread;
54 f._ub._base = NULL;
55 f._lb._base = NULL;
56 f._file = -1; /* No file. */
>>> CID 398775: (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfwscanf_r".
57 return __ssvfwscanf_r (ptr, &f, fmt, ap);
** CID 398774: Uninitialized variables (UNINIT)
________________________________________________________________________________________________________
*** CID 398774: Uninitialized variables (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdlib/arc4random.c:
93 in _rs_stir()
87 u_char rnd[KEYSZ + IVSZ];
88
89 if (getentropy(rnd, sizeof rnd) == -1)
90 _getentropy_fail();
91
92 if (!rs)
>>> CID 398774: Uninitialized variables (UNINIT)
>>> Using uninitialized element of array "rnd" when calling "_rs_init".
93 _rs_init(rnd, sizeof(rnd));
94 else
95 _rs_rekey(rnd, sizeof(rnd));
96 explicit_bzero(rnd, sizeof(rnd)); /* discard source seed */
97
98 /* invalidate rs_buf */
** CID 398773: Incorrect expression (DIVIDE_BY_ZERO)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libm/math/kf_tan.c:
55 in __kernel_tanf()
________________________________________________________________________________________________________
*** CID 398773: Incorrect expression (DIVIDE_BY_ZERO)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libm/math/kf_tan.c:
55 in __kernel_tanf()
49 __int32_t ix,hx;
50 GET_FLOAT_WORD(hx,x);
51 ix = hx&0x7fffffff; /* high word of |x| */
52 if(ix<0x31800000) /* x < 2**-28 */
53 {if((int)x==0) { /* generate inexact */
54 if((ix|(iy+1))==0) return one/fabsf(x);
>>> CID 398773: Incorrect expression (DIVIDE_BY_ZERO)
>>> In expression "-1f / x", division by expression "x" which may be
zero has undefined behavior.
55 else return (iy==1)? x: -one/x;
56 }
57 }
58 if(ix>=0x3f2ca140) { /* |x|>=0.6744 */
59 if(hx<0) {x = -x; y = -y;}
60 z = pio4-x;
** CID 398772: Memory - corruptions (OVERRUN)
________________________________________________________________________________________________________
*** CID 398772: Memory - corruptions (OVERRUN)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/regcomp.c:
1044 in bothcases()
1038 assert(othercase(ch) != ch); /* p_bracket() would
recurse */
1039 p->next = bracket;
1040 p->end = bracket+2;
1041 bracket[0] = ch;
1042 bracket[1] = ']';
1043 bracket[2] = '\0';
>>> CID 398772: Memory - corruptions (OVERRUN)
>>> Overrunning buffer pointed to by "p->next" of 3 bytes by passing it
to a function which accesses it at byte offset 4.
1044 p_bracket(p);
1045 assert(p->next == bracket+2);
1046 p->next = oldnext;
1047 p->end = oldend;
1048 }
1049
** CID 398771: High impact quality (Y2K38_SAFETY)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/usleep.c:
18 in usleep()
________________________________________________________________________________________________________
*** CID 398771: High impact quality (Y2K38_SAFETY)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/usleep.c:
18 in usleep()
12 {
13 struct timespec ts;
14
15 ts.tv_sec = (long int)useconds / 1000000;
16 ts.tv_nsec = ((long int)useconds % 1000000) * 1000;
17 if (!nanosleep(&ts,&ts)) return 0;
>>> CID 398771: High impact quality (Y2K38_SAFETY)
>>> A "time_t" value is stored in an integer with too few bits to
accommodate it. The expression "ts.tv_sec" is cast to "int".
18 if (errno == EINTR) return ts.tv_sec;
19 return -1;
20 }
21
** CID 378851: Memory - corruptions (OVERRUN)
________________________________________________________________________________________________________
*** CID 378851: Memory - corruptions (OVERRUN)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/regcomp.c:
1090 in nonnewline()
1084 p->next = bracket;
1085 p->end = bracket+3;
1086 bracket[0] = '^';
1087 bracket[1] = '\n';
1088 bracket[2] = ']';
1089 bracket[3] = '\0';
>>> CID 378851: Memory - corruptions (OVERRUN)
>>> Overrunning buffer pointed to by "p->next" of 4 bytes by passing it
to a function which accesses it at byte offset 4.
1090 p_bracket(p);
1091 assert(p->next == bracket+3);
1092 p->next = oldnext;
1093 p->end = oldend;
1094 }
1095
________________________________________________________________________________________________________
To view the defects in Coverity Scan visit,
https://u15810271.ct.sendgrid.net/ls/click?upn=HRESupC-2F2Czv4BOaCWWCy7my0P0qcxCbhZ31OYv50ypUUzi-2FdSNmuyRB7BEFT8xQWqa-2BcrUOdcmLJRN5wHA-2F-2Bj-2BUPxOS2vpJc2U7lnvDDSM-3DgcXN_CTvEjVoKhyc6dLmJJo1u9AYIk8P8bcAbCPbBDYvYSXrko-2B6zqtxlihMO5pRBlqs6CXC6JoeSQ5BknttytYW4gn54pXoG5E1T2VTg7ZExldrWnOHoGNfjITpyeGBnq8zf1R1SvLaQHX0KwLC3QLIILHDIyeRDmH6ivilCfFIJbx4IaHchThYPPrH23evm0vJ6A6-2BcYCz2qmJNN2577UqVyYc0aItJ859abhW8GanEpsc-3D
To manage Coverity Scan email notifications for "joel.sherrill@gmail.com",
click
https://u15810271.ct.sendgrid.net/ls/click?upn=HRESupC-2F2Czv4BOaCWWCy7my0P0qcxCbhZ31OYv50yped04pjJnmXOsUBtKYNIXxTJDdEZ5ceQ-2BXdf-2FM1tcMIXP73MN3HxQfFTMLU5dSe8Rv0KFh7gYStOFjZD12ucRRnrjyUHOCTj7rG0E9HBcwa6j-2FX4NTabdEq2v7MM-2FuqaA-3D5Xsf_CTvEjVoKhyc6dLmJJo1u9AYIk8P8bcAbCPbBDYvYSXrko-2B6zqtxlihMO5pRBlqs6CXC6JoeSQ5BknttytYW4gsEM86eEaAqPEjIHUArLBXYOUpWfZ4bmwC96PG11GPPh-2FLsC0rkTKQE2J8XRI45hCnTpCTbj87kq0GI1XLddKyw1JXGGqDcyizThGumwZmd8Tr5waHqdorDd3Wom83BYSMOhcHiGVjpnvscbd8ReGFw-3D
^ permalink raw reply [flat|nested] 4+ messages in thread
* Fwd: New Defects reported by Coverity Scan for RTEMS-Newlib
2022-08-29 23:09 ` Joel Sherrill
@ 2022-08-29 23:09 ` Joel Sherrill
0 siblings, 0 replies; 4+ messages in thread
From: Joel Sherrill @ 2022-08-29 23:09 UTC (permalink / raw)
To: Newlib
[-- Attachment #1: Type: text/plain, Size: 12625 bytes --]
Hi
I quit running Coverity on newlib as part of the repositories analysed as
part of RTEMS BUT I had to update the version of cov-analysis we used and
wanted to make sure the scripting stayed working.
These issues were flagged since the last time we ran it. Some look like
they need attention.
--joel
---------- Forwarded message ---------
From: <scan-admin@coverity.com>
Date: Mon, Aug 29, 2022 at 5:56 PM
Subject: New Defects reported by Coverity Scan for RTEMS-Newlib
To: <joel.sherrill@gmail.com>
Hi,
Please find the latest report on new defect(s) introduced to RTEMS-Newlib
found with Coverity Scan.
10 new defect(s) introduced to RTEMS-Newlib found with Coverity Scan.
1 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 10 of 10 defect(s)
** CID 398779: (UNINIT)
________________________________________________________________________________________________________
*** CID 398779: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/swscanf.c:
454 in _swscanf_r()
448 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
449 f._read = __seofread;
450 f._ub._base = NULL;
451 f._lb._base = NULL;
452 f._file = -1; /* No file. */
453 va_start (ap, fmt);
>>> CID 398779: (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfwscanf_r".
454 ret = __ssvfwscanf_r (ptr, &f, fmt, ap);
455 va_end (ap);
456 return ret;
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/swscanf.c:
454 in _swscanf_r()
448 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
449 f._read = __seofread;
450 f._ub._base = NULL;
451 f._lb._base = NULL;
452 f._file = -1; /* No file. */
453 va_start (ap, fmt);
>>> CID 398779: (UNINIT)
>>> Using uninitialized value "f._ur" when calling "__ssvfwscanf_r".
454 ret = __ssvfwscanf_r (ptr, &f, fmt, ap);
455 va_end (ap);
456 return ret;
** CID 398778: High impact quality (Y2K38_SAFETY)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/sleep.c:
18 in sleep()
________________________________________________________________________________________________________
*** CID 398778: High impact quality (Y2K38_SAFETY)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/sleep.c:
18 in sleep()
12 {
13 struct timespec ts;
14
15 ts.tv_sec = seconds;
16 ts.tv_nsec = 0;
17 if (!nanosleep(&ts,&ts)) return 0;
>>> CID 398778: High impact quality (Y2K38_SAFETY)
>>> A "time_t" value is stored in an integer with too few bits to
accommodate it. The expression "ts.tv_sec" is cast to "unsigned int".
18 if (errno == EINTR) return ts.tv_sec;
19 return -1;
20 }
21
** CID 398777: (UNINIT)
________________________________________________________________________________________________________
*** CID 398777: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/swscanf.c:
432 in swscanf()
426 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
427 f._read = __seofread;
428 f._ub._base = NULL;
429 f._lb._base = NULL;
430 f._file = -1; /* No file. */
431 va_start (ap, fmt);
>>> CID 398777: (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfwscanf_r".
432 ret = __ssvfwscanf_r (_REENT, &f, fmt, ap);
433 va_end (ap);
434 return ret;
435 }
436
437 #endif /* !_REENT_ONLY */
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/swscanf.c:
432 in swscanf()
426 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
427 f._read = __seofread;
428 f._ub._base = NULL;
429 f._lb._base = NULL;
430 f._file = -1; /* No file. */
431 va_start (ap, fmt);
>>> CID 398777: (UNINIT)
>>> Using uninitialized value "f._ur" when calling "__ssvfwscanf_r".
432 ret = __ssvfwscanf_r (_REENT, &f, fmt, ap);
433 va_end (ap);
434 return ret;
435 }
436
437 #endif /* !_REENT_ONLY */
** CID 398776: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/time/time.c:
44 in time()
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/time/time.c:
45 in time()
________________________________________________________________________________________________________
*** CID 398776: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/time/time.c:
44 in time()
38 struct timeval now;
39
40 if (_gettimeofday_r (_REENT, &now, NULL) < 0)
41 now.tv_sec = (time_t) -1;
42
43 if (t)
>>> CID 398776: (UNINIT)
>>> Using uninitialized value "now.tv_sec".
44 *t = now.tv_sec;
45 return now.tv_sec;
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/time/time.c:
45 in time()
39
40 if (_gettimeofday_r (_REENT, &now, NULL) < 0)
41 now.tv_sec = (time_t) -1;
42
43 if (t)
44 *t = now.tv_sec;
>>> CID 398776: (UNINIT)
>>> Using uninitialized value "now.tv_sec".
45 return now.tv_sec;
** CID 398775: (UNINIT)
________________________________________________________________________________________________________
*** CID 398775: (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vswscanf.c:
57 in _vswscanf_r()
51 f._bf._base = f._p = (unsigned char *) str;
52 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
53 f._read = __seofread;
54 f._ub._base = NULL;
55 f._lb._base = NULL;
56 f._file = -1; /* No file. */
>>> CID 398775: (UNINIT)
>>> Using uninitialized value "f._ur" when calling "__ssvfwscanf_r".
57 return __ssvfwscanf_r (ptr, &f, fmt, ap);
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vswscanf.c:
57 in _vswscanf_r()
51 f._bf._base = f._p = (unsigned char *) str;
52 f._bf._size = f._r = wcslen (str) * sizeof (wchar_t);
53 f._read = __seofread;
54 f._ub._base = NULL;
55 f._lb._base = NULL;
56 f._file = -1; /* No file. */
>>> CID 398775: (UNINIT)
>>> Using uninitialized value "f._flags2" when calling "__ssvfwscanf_r".
57 return __ssvfwscanf_r (ptr, &f, fmt, ap);
** CID 398774: Uninitialized variables (UNINIT)
________________________________________________________________________________________________________
*** CID 398774: Uninitialized variables (UNINIT)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdlib/arc4random.c:
93 in _rs_stir()
87 u_char rnd[KEYSZ + IVSZ];
88
89 if (getentropy(rnd, sizeof rnd) == -1)
90 _getentropy_fail();
91
92 if (!rs)
>>> CID 398774: Uninitialized variables (UNINIT)
>>> Using uninitialized element of array "rnd" when calling "_rs_init".
93 _rs_init(rnd, sizeof(rnd));
94 else
95 _rs_rekey(rnd, sizeof(rnd));
96 explicit_bzero(rnd, sizeof(rnd)); /* discard source seed */
97
98 /* invalidate rs_buf */
** CID 398773: Incorrect expression (DIVIDE_BY_ZERO)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libm/math/kf_tan.c:
55 in __kernel_tanf()
________________________________________________________________________________________________________
*** CID 398773: Incorrect expression (DIVIDE_BY_ZERO)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libm/math/kf_tan.c:
55 in __kernel_tanf()
49 __int32_t ix,hx;
50 GET_FLOAT_WORD(hx,x);
51 ix = hx&0x7fffffff; /* high word of |x| */
52 if(ix<0x31800000) /* x < 2**-28 */
53 {if((int)x==0) { /* generate inexact */
54 if((ix|(iy+1))==0) return one/fabsf(x);
>>> CID 398773: Incorrect expression (DIVIDE_BY_ZERO)
>>> In expression "-1f / x", division by expression "x" which may be
zero has undefined behavior.
55 else return (iy==1)? x: -one/x;
56 }
57 }
58 if(ix>=0x3f2ca140) { /* |x|>=0.6744 */
59 if(hx<0) {x = -x; y = -y;}
60 z = pio4-x;
** CID 398772: Memory - corruptions (OVERRUN)
________________________________________________________________________________________________________
*** CID 398772: Memory - corruptions (OVERRUN)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/regcomp.c:
1044 in bothcases()
1038 assert(othercase(ch) != ch); /* p_bracket() would
recurse */
1039 p->next = bracket;
1040 p->end = bracket+2;
1041 bracket[0] = ch;
1042 bracket[1] = ']';
1043 bracket[2] = '\0';
>>> CID 398772: Memory - corruptions (OVERRUN)
>>> Overrunning buffer pointed to by "p->next" of 3 bytes by passing it
to a function which accesses it at byte offset 4.
1044 p_bracket(p);
1045 assert(p->next == bracket+2);
1046 p->next = oldnext;
1047 p->end = oldend;
1048 }
1049
** CID 398771: High impact quality (Y2K38_SAFETY)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/usleep.c:
18 in usleep()
________________________________________________________________________________________________________
*** CID 398771: High impact quality (Y2K38_SAFETY)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/usleep.c:
18 in usleep()
12 {
13 struct timespec ts;
14
15 ts.tv_sec = (long int)useconds / 1000000;
16 ts.tv_nsec = ((long int)useconds % 1000000) * 1000;
17 if (!nanosleep(&ts,&ts)) return 0;
>>> CID 398771: High impact quality (Y2K38_SAFETY)
>>> A "time_t" value is stored in an integer with too few bits to
accommodate it. The expression "ts.tv_sec" is cast to "int".
18 if (errno == EINTR) return ts.tv_sec;
19 return -1;
20 }
21
** CID 378851: Memory - corruptions (OVERRUN)
________________________________________________________________________________________________________
*** CID 378851: Memory - corruptions (OVERRUN)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/posix/regcomp.c:
1090 in nonnewline()
1084 p->next = bracket;
1085 p->end = bracket+3;
1086 bracket[0] = '^';
1087 bracket[1] = '\n';
1088 bracket[2] = ']';
1089 bracket[3] = '\0';
>>> CID 378851: Memory - corruptions (OVERRUN)
>>> Overrunning buffer pointed to by "p->next" of 4 bytes by passing it
to a function which accesses it at byte offset 4.
1090 p_bracket(p);
1091 assert(p->next == bracket+3);
1092 p->next = oldnext;
1093 p->end = oldend;
1094 }
1095
________________________________________________________________________________________________________
To view the defects in Coverity Scan visit,
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Fwd: New Defects reported by Coverity Scan for RTEMS-Newlib
[not found] <621dbc6e5b779_bb4ce2b0cf36619a0847b1@prd-scan-dashboard-0.mail>
@ 2022-03-01 12:59 ` Joel Sherrill
0 siblings, 0 replies; 4+ messages in thread
From: Joel Sherrill @ 2022-03-01 12:59 UTC (permalink / raw)
To: Newlib
Hi
The RTEMS Projects runs Coverity Scan when Newlib changes.
Not sure who committed something that triggered these but overnight 6 new
defects showed up. Most look to be NULL dereferences.
--joel
---------- Forwarded message ---------
From: <scan-admin@coverity.com>
Date: Tue, Mar 1, 2022, 12:25 AM
Subject: New Defects reported by Coverity Scan for RTEMS-Newlib
To: <joel.sherrill@gmail.com>
Hi,
Please find the latest report on new defect(s) introduced to RTEMS-Newlib
found with Coverity Scan.
6 new defect(s) introduced to RTEMS-Newlib found with Coverity Scan.
New defect(s) Reported-by: Coverity Scan
Showing 6 of 6 defect(s)
** CID 387497: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asiprintf.c:
46 in _asiprintf_r()
________________________________________________________________________________________________________
*** CID 387497: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asiprintf.c:
46 in _asiprintf_r()
40 f._file = -1; /* No file. */
41 va_start (ap, fmt);
42 ret = _svfiprintf_r (ptr, &f, fmt, ap);
43 va_end (ap);
44 if (ret >= 0)
45 {
>>> CID 387497: (FORWARD_NULL)
>>> Dereferencing null pointer "f._p".
46 *f._p = 0;
47 *strp = (char *) f._bf._base;
48 }
49 return (ret);
50 }
51
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asiprintf.c:
42 in _asiprintf_r()
36 /* mark a zero-length reallocatable buffer */
37 f._flags = __SWR | __SSTR | __SMBF;
38 f._bf._base = f._p = NULL;
39 f._bf._size = f._w = 0;
40 f._file = -1; /* No file. */
41 va_start (ap, fmt);
>>> CID 387497: (FORWARD_NULL)
>>> Passing "&f" to "_svfiprintf_r", which dereferences null "f._p".
42 ret = _svfiprintf_r (ptr, &f, fmt, ap);
43 va_end (ap);
44 if (ret >= 0)
45 {
46 *f._p = 0;
47 *strp = (char *) f._bf._base;
** CID 387496: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vasniprintf.c:
54 in _vasniprintf_r()
________________________________________________________________________________________________________
*** CID 387496: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vasniprintf.c:
54 in _vasniprintf_r()
48 f._bf._size = f._w = len;
49 f._file = -1; /* No file. */
50 ret = _svfiprintf_r (ptr, &f, fmt, ap);
51 if (ret < 0)
52 return NULL;
53 *lenp = ret;
>>> CID 387496: (FORWARD_NULL)
>>> Dereferencing null pointer "f._p".
54 *f._p = '\0';
55 return (char *) f._bf._base;
56 }
57
58 #ifndef _REENT_ONLY
59
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vasniprintf.c:
50 in _vasniprintf_r()
44 {
45 ptr->_errno = EOVERFLOW;
46 return NULL;
47 }
48 f._bf._size = f._w = len;
49 f._file = -1; /* No file. */
>>> CID 387496: (FORWARD_NULL)
>>> Passing "&f" to "_svfiprintf_r", which dereferences null "f._p".
50 ret = _svfiprintf_r (ptr, &f, fmt, ap);
51 if (ret < 0)
52 return NULL;
53 *lenp = ret;
54 *f._p = '\0';
55 return (char *) f._bf._base;
** CID 387495: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asiprintf.c:
72 in asiprintf()
________________________________________________________________________________________________________
*** CID 387495: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asiprintf.c:
72 in asiprintf()
66 f._file = -1; /* No file. */
67 va_start (ap, fmt);
68 ret = _svfiprintf_r (_REENT, &f, fmt, ap);
69 va_end (ap);
70 if (ret >= 0)
71 {
>>> CID 387495: (FORWARD_NULL)
>>> Dereferencing null pointer "f._p".
72 *f._p = 0;
73 *strp = (char *) f._bf._base;
74 }
75 return (ret);
76 }
77
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asiprintf.c:
68 in asiprintf()
62 /* mark a zero-length reallocatable buffer */
63 f._flags = __SWR | __SSTR | __SMBF;
64 f._bf._base = f._p = NULL;
65 f._bf._size = f._w = 0;
66 f._file = -1; /* No file. */
67 va_start (ap, fmt);
>>> CID 387495: (FORWARD_NULL)
>>> Passing "&f" to "_svfiprintf_r", which dereferences null "f._p".
68 ret = _svfiprintf_r (_REENT, &f, fmt, ap);
69 va_end (ap);
70 if (ret >= 0)
71 {
72 *f._p = 0;
73 *strp = (char *) f._bf._base;
** CID 387494: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vasiprintf.c:
59 in _vasiprintf_r()
________________________________________________________________________________________________________
*** CID 387494: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vasiprintf.c:
56 in _vasiprintf_r()
50 FILE f;
51
52 f._flags = __SWR | __SSTR | __SMBF ;
53 f._bf._base = f._p = NULL;
54 f._bf._size = f._w = 0;
55 f._file = -1; /* No file. */
>>> CID 387494: (FORWARD_NULL)
>>> Passing "&f" to "_svfiprintf_r", which dereferences null "f._p".
56 ret = _svfiprintf_r (ptr, &f, fmt, ap);
57 if (ret >= 0)
58 {
59 *f._p = 0;
60 *strp = (char *) f._bf._base;
61 }
62 return ret;
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/vasiprintf.c:
59 in _vasiprintf_r()
53 f._bf._base = f._p = NULL;
54 f._bf._size = f._w = 0;
55 f._file = -1; /* No file. */
56 ret = _svfiprintf_r (ptr, &f, fmt, ap);
57 if (ret >= 0)
58 {
>>> CID 387494: (FORWARD_NULL)
>>> Dereferencing null pointer "f._p".
59 *f._p = 0;
60 *strp = (char *) f._bf._base;
61 }
62 return ret;
** CID 387493: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asniprintf.c:
56 in _asniprintf_r()
________________________________________________________________________________________________________
*** CID 387493: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asniprintf.c:
56 in _asniprintf_r()
50 va_start (ap, fmt);
51 ret = _svfiprintf_r (ptr, &f, fmt, ap);
52 va_end (ap);
53 if (ret < 0)
54 return NULL;
55 *lenp = ret;
>>> CID 387493: (FORWARD_NULL)
>>> Dereferencing null pointer "f._p".
56 *f._p = '\0';
57 return (char *) f._bf._base;
58 }
59
60 #ifndef _REENT_ONLY
61
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asniprintf.c:
51 in _asniprintf_r()
45 ptr->_errno = EOVERFLOW;
46 return NULL;
47 }
48 f._bf._size = f._w = len;
49 f._file = -1; /* No file. */
50 va_start (ap, fmt);
>>> CID 387493: (FORWARD_NULL)
>>> Passing "&f" to "_svfiprintf_r", which dereferences null "f._p".
51 ret = _svfiprintf_r (ptr, &f, fmt, ap);
52 va_end (ap);
53 if (ret < 0)
54 return NULL;
55 *lenp = ret;
56 *f._p = '\0';
** CID 387492: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asniprintf.c:
102 in asniprintf()
________________________________________________________________________________________________________
*** CID 387492: (FORWARD_NULL)
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asniprintf.c:
97 in asniprintf()
91 ptr->_errno = EOVERFLOW;
92 return NULL;
93 }
94 f._bf._size = f._w = len;
95 f._file = -1; /* No file. */
96 va_start (ap, fmt);
>>> CID 387492: (FORWARD_NULL)
>>> Passing "&f" to "_svfiprintf_r", which dereferences null "f._p".
97 ret = _svfiprintf_r (ptr, &f, fmt, ap);
98 va_end (ap);
99 if (ret < 0)
100 return NULL;
101 *lenp = ret;
102 *f._p = '\0';
103 return (char *) f._bf._base;
104 }
105
/home/joel/rtems-cron-coverity/sourceware-mirror-newlib-cygwin/newlib/libc/stdio/asniprintf.c:
102 in asniprintf()
96 va_start (ap, fmt);
97 ret = _svfiprintf_r (ptr, &f, fmt, ap);
98 va_end (ap);
99 if (ret < 0)
100 return NULL;
101 *lenp = ret;
>>> CID 387492: (FORWARD_NULL)
>>> Dereferencing null pointer "f._p".
102 *f._p = '\0';
103 return (char *) f._bf._base;
104 }
105
________________________________________________________________________________________________________
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To manage Coverity Scan email notifications for "joel.sherrill@gmail.com",
click
https://u15810271.ct.sendgrid.net/ls/click?upn=HRESupC-2F2Czv4BOaCWWCy7my0P0qcxCbhZ31OYv50yped04pjJnmXOsUBtKYNIXxTJDdEZ5ceQ-2BXdf-2FM1tcMIXP73MN3HxQfFTMLU5dSe8Rv0KFh7gYStOFjZD12ucRRnrjyUHOCTj7rG0E9HBcwa6j-2FX4NTabdEq2v7MM-2FuqaA-3DJ8Qh_CTvEjVoKhyc6dLmJJo1u9AYIk8P8bcAbCPbBDYvYSXrGLZMaHd5esU0ARWQLalpbU14eFG-2B8GBetplQDq0TFvV2SdrBvi9WPWAL9ik9dUN3G4GCz8VYLMQNfnG1KXM-2B3Izv46DsGCDeNRaHHjKQaodaHQLONx4FWpogc4bk0lIv9WPI18Ah675HB1nu1NDtORJjikxZE-2BlhmmrkoLD0utEP5uRkuJbyd23X6MuuSrA8-3D
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-11-10 14:41 UTC | newest]
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[not found] <654dcb725557c_69be32c62521719a8359f9@prd-scan-dashboard-0.mail>
2023-11-10 14:40 ` Fwd: New Defects reported by Coverity Scan for RTEMS-Newlib Joel Sherrill
[not found] <630d44245d07b_448622ac7e91099ac81e@prd-scan-dashboard-0.mail>
2022-08-29 23:09 ` Joel Sherrill
2022-08-29 23:09 ` Joel Sherrill
[not found] <621dbc6e5b779_bb4ce2b0cf36619a0847b1@prd-scan-dashboard-0.mail>
2022-03-01 12:59 ` Joel Sherrill
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