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| author | Robert Evans <evansr@google.com> | 2024-03-29 21:59:23 +0000 |
|---|---|---|
| committer | Tony Hutter <hutter2@llnl.gov> | 2024-04-29 20:50:05 +0000 |
| commit | e0cfa1592da065fb0e0ba7579ea4d152ce099323 (patch) | |
| tree | 53e3b2c5b6d4568af9aecad3412ca5250986f3c2 | |
| parent | d088fb7d24083988f38e4224a6ef9cc71c12a6a3 (diff) | |
| download | src-e0cfa1592da065fb0e0ba7579ea4d152ce099323.tar.gz src-e0cfa1592da065fb0e0ba7579ea4d152ce099323.zip | |
Fix buffer underflow if sysfs file is empty
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Jason Lee <jasonlee@lanl.gov>
Signed-off-by: Robert Evans <evansr@google.com>
Closes #16028
Closes #16035
| -rw-r--r-- | cmd/zpool/os/linux/zpool_vdev_os.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/cmd/zpool/os/linux/zpool_vdev_os.c b/cmd/zpool/os/linux/zpool_vdev_os.c index 006a3a7d8e01..80627b58211c 100644 --- a/cmd/zpool/os/linux/zpool_vdev_os.c +++ b/cmd/zpool/os/linux/zpool_vdev_os.c @@ -458,7 +458,7 @@ static char *zpool_sysfs_gets(char *path) } /* Remove trailing newline */ - if (buf[count - 1] == '\n') + if (count > 0 && buf[count - 1] == '\n') buf[count - 1] = 0; close(fd); |