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| author | Theodore Ts'o <tytso@mit.edu> | 2024-05-02 12:23:44 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2024-05-02 12:23:44 -0400 |
| commit | b88b3b46cf1cfd4f0682374918fb3ba4aa0decdd (patch) | |
| tree | 62208a506854f34fcf0c714b032f11f85e101078 | |
| parent | 66b0b3c1fc6262605d38f443641cdb9ab09d14e2 (diff) | |
| download | e2fsprogs-next.tar.gz | |
If sysconf(_SC_NPROCESSORS_CONF) returns zero, this can cause a divide
by zero. Make ext2fs_rw_bitmaps() more robust defaulting to 4 threads
if _SC_NPROCESSORS_CONF returns an invalid value.
https://github.com/tytso/e2fsprogs/issues/114
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| -rw-r--r-- | lib/ext2fs/rw_bitmaps.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/ext2fs/rw_bitmaps.c b/lib/ext2fs/rw_bitmaps.c index 1fe65f744..1da75e4a0 100644 --- a/lib/ext2fs/rw_bitmaps.c +++ b/lib/ext2fs/rw_bitmaps.c @@ -557,7 +557,7 @@ errcode_t ext2fs_rw_bitmaps(ext2_filsys fs, int flags, int num_threads) * MacOS, FreeBSD, etc. * ref: https://stackoverflow.com/questions/150355 */ - if (num_threads < 0) + if (num_threads <= 0) num_threads = 4; if ((unsigned) num_threads > fs->group_desc_count) |