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Code Issues Releases Wiki Activity

Fixed a possible access of invalid file handles in cSIProcessor::Action()

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This commit is contained in:
Klaus Schmidinger 2003-05-29 15:10:12 +02:00
parent 14790d6f7a
commit a3efbc248a
3 changed files with 13 additions and 3 deletions
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1
CONTRIBUTORS
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@ -174,6 +174,7 @@ Stefan Huelswitt <huels@iname.com>
for suggesting to add VDRVERSNUM to config.h for suggesting to add VDRVERSNUM to config.h
for fixing a memory leak in cNonBlockingFileReader for fixing a memory leak in cNonBlockingFileReader
for fixing an uninitialized variable in cDisplayChannel for fixing an uninitialized variable in cDisplayChannel
for fixing a possible access of invalid file handles in cSIProcessor::Action()
Ulrich Röder <roeder@efr-net.de> Ulrich Röder <roeder@efr-net.de>
for pointing out that there are channels that have a symbol rate higher than for pointing out that there are channels that have a symbol rate higher than

2
HISTORY
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@ -2224,3 +2224,5 @@ Video Disk Recorder Revision History
- Single event timers are now deleted if the recording they are doing is - Single event timers are now deleted if the recording they are doing is
deleted before the timer ends. deleted before the timer ends.
- Fixed an uninitialized variable in cDisplayChannel (thanks to Stefan Huelswitt). - Fixed an uninitialized variable in cDisplayChannel (thanks to Stefan Huelswitt).
- Fixed a possible access of invalid file handles in cSIProcessor::Action()
(thanks to Stefan Huelswitt).

13
eit.c
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@ -16,7 +16,7 @@
* the Free Software Foundation; either version 2 of the License, or * * the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. * * (at your option) any later version. *
* * * *
* $Id: eit.c 1.78 2003/05/18 14:10:25 kls Exp $ * $Id: eit.c 1.79 2003/05/29 15:04:10 kls Exp $
***************************************************************************/ ***************************************************************************/
#include "eit.h" #include "eit.h"
@ -1236,10 +1236,17 @@ void cSIProcessor::Action()
// wait until data becomes ready from the bitfilter // wait until data becomes ready from the bitfilter
if (poll(pfd, NumUsedFilters, 1000) != 0) if (poll(pfd, NumUsedFilters, 1000) != 0)
{ {
for (int a = 0; a < NumUsedFilters ; a++) for (int aa = 0; aa < NumUsedFilters; aa++)
{ {
if (pfd[a].revents & POLLIN) if (pfd[aa].revents & POLLIN)
{ {
int a;
for (a = 0; a < MAX_FILTERS; a++) {
if (pfd[aa].fd == filters[a].handle)
break;
}
if (a >= MAX_FILTERS || !filters[a].inuse) // filter no longer available
continue;
// read section // read section
unsigned char buf[4096]; // max. allowed size for any EIT section unsigned char buf[4096]; // max. allowed size for any EIT section
int r = safe_read(filters[a].handle, buf, sizeof(buf)); int r = safe_read(filters[a].handle, buf, sizeof(buf));