diff options
| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-07-22 11:46:44 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-07-22 11:56:36 -0400 |
| commit | 1fe2988f523ddbad93ca7abc98fea982f2ae0505 (patch) | |
| tree | 283f35a8c794ad6438c0898a8a13ca6ebb1d7096 | |
| parent | a8fc7a03a82959a69ca262c850be23a4932142ce (diff) | |
| download | glibc-1fe2988f523ddbad93ca7abc98fea982f2ae0505.tar.gz | |
tile BZ #15759: Fix bug in _dl_unmap
We returned without calling __munmap if not in the simulator.
Now we call a separate sim_dlclose() function to make the
control flow work correctly.
| -rw-r--r-- | NEWS | 3 | ||||
| -rw-r--r-- | ports/ChangeLog.tile | 6 | ||||
| -rw-r--r-- | ports/sysdeps/tile/dl-runtime.c | 12 |
3 files changed, 17 insertions, 4 deletions
@@ -21,7 +21,8 @@ Version 2.18 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426, 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488, 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583, - 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755. + 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755, + 15759. * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal has been fixed by disabling the use of pt_chown (Bugzilla #15755). diff --git a/ports/ChangeLog.tile b/ports/ChangeLog.tile index dd3d4f4759..a2ec5e18cb 100644 --- a/ports/ChangeLog.tile +++ b/ports/ChangeLog.tile @@ -1,3 +1,9 @@ +2013-07-22 Chris Metcalf <cmetcalf@tilera.com> + + [BZ #15759] + * sysdeps/tile/dl-runtime.c (sim_dlclose): New function. + (_dl_unmap): Call sim_dlclose(). + 2013-07-19 Chris Metcalf <cmetcalf@tilera.com> * sysdeps/unix/sysv/linux/tile/sys/ptrace.h diff --git a/ports/sysdeps/tile/dl-runtime.c b/ports/sysdeps/tile/dl-runtime.c index 84b5a5af5a..42f0ab3ac2 100644 --- a/ports/sysdeps/tile/dl-runtime.c +++ b/ports/sysdeps/tile/dl-runtime.c @@ -127,8 +127,8 @@ _dl_after_load (struct link_map *l) } /* Support notifying the simulator about removed objects prior to munmap(). */ -void internal_function -_dl_unmap (struct link_map *l) +static void +sim_dlclose (ElfW(Addr) map_start) { int shift; @@ -144,9 +144,15 @@ _dl_unmap (struct link_map *l) DLPUTC ('0'); DLPUTC ('x'); for (shift = (int) sizeof (unsigned long) * 8 - 4; shift >= 0; shift -= 4) - DLPUTC ("0123456789abcdef"[(l->l_map_start >> shift) & 0xF]); + DLPUTC ("0123456789abcdef"[(map_start >> shift) & 0xF]); DLPUTC ('\0'); + #undef DLPUTC +} +void internal_function +_dl_unmap (struct link_map *l) +{ + sim_dlclose (l->l_map_start); __munmap ((void *) l->l_map_start, l->l_map_end - l->l_map_start); } |