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Correctly NUL-terminate link name in sprof

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This commit is contained in:
Ulrich Drepper 2011-10-29 12:51:53 -04:00
parent d272e7f19d
commit c9aafacee4
3 changed files with 9 additions and 4 deletions
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4
ChangeLog
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@ -1,5 +1,9 @@
2011-10-29 Ulrich Drepper <drepper@gmail.com>
[BZ #13337]
* elf/sprof.c (load_shobj): Correctly NUL-terminate link name.
Patch by Thomas Jarosch <thomas.jarosch@intra2net.com>.
* elf/chroot_canon.c (chroot_canon): Cleanups.
* elf/dl-lookup.c (_dl_setup_hash): Avoid warning.

2
NEWS
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@ -12,7 +12,7 @@ Version 2.15
6779, 6783, 9696, 11589, 12403, 12847, 12868, 12852, 12874, 12885, 12892,
12907, 12922, 12935, 13007, 13021, 13067, 13068, 13090, 13092, 13114,
13118, 13123, 13134, 13138, 13150, 13179, 13192, 13268, 13291, 13335,
13344
13337, 13344
* New program pldd to list loaded object of a process
Implemented by Ulrich Drepper.

7
elf/sprof.c
View file

@ -596,10 +596,11 @@ load_shobj (const char *name)
static const char procpath[] = "/proc/self/fd/%d";
char origprocname[sizeof (procpath) + sizeof (int) * 3];
snprintf (origprocname, sizeof (origprocname), procpath, fd);
char *origlink = (char *) alloca (PATH_MAX + 1);
origlink[PATH_MAX] = '\0';
if (readlink (origprocname, origlink, PATH_MAX) == -1)
char *origlink = (char *) alloca (PATH_MAX);
ssize_t n = readlink (origprocname, origlink, PATH_MAX)
if (n == -1)
goto no_debuginfo;
origlink[n] = '\0';
/* Try to find the actual file. There are three places:
1. the same directory the DSO is in