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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-02-15 16:52:05 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-02-15 17:01:55 +0100 |
| commit | 0c9b35e8dd1837ece019318a9ea9199e970e74a1 (patch) | |
| tree | c8f2ab26299af5dc4c8c03255deac921c8b352df | |
| parent | Introduce AM_CONDITIONAL ATOMIC. (diff) | |
| download | rtems-0c9b35e8dd1837ece019318a9ea9199e970e74a1.tar.bz2 | |
dosfs: Ensure valid data cluster count
| -rw-r--r-- | cpukit/libfs/src/dosfs/fat.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/cpukit/libfs/src/dosfs/fat.c b/cpukit/libfs/src/dosfs/fat.c index 8e9da218ed..b2b55c0e7b 100644 --- a/cpukit/libfs/src/dosfs/fat.c +++ b/cpukit/libfs/src/dosfs/fat.c @@ -652,12 +652,17 @@ fat_init_volume_info(fat_fs_info_t *fs_info, const char *device) vol->mask = FAT_FAT16_MASK; vol->eoc_val = FAT_FAT16_EOC; } - else + else if ( vol->data_cls < FAT_FAT32_MASK - 1 ) { vol->type = FAT_FAT32; vol->mask = FAT_FAT32_MASK; vol->eoc_val = FAT_FAT32_EOC; } + else + { + close(vol->fd); + rtems_set_errno_and_return_minus_one( EINVAL ); + } } if (vol->type == FAT_FAT32) |