| From 67af7dbe8bdf29f9ed980d8d29feeae32a0a7a1d Mon Sep 17 00:00:00 2001 |
| From: Li Wang <liwang@redhat.com> |
| Date: Tue, 23 Jan 2018 17:46:35 +0800 |
| Subject: [PATCH] safe_macros: make is_fuse() return zero if fs_type is NULL |
| |
| This commmit 28507e514c(safe_mount: Do not try mount() syscall for FUSE fs) |
| involves FUSE fs check in safe_mount(), but we'd better guarantee the "fs_type" |
| is legal to check in is_fuse() function otherwise system will kill the program. |
| |
| cmdline="fanotify06" |
| contacts="" |
| analysis=exit |
| <<<test_output>>> |
| tst_test.c:980: INFO: Timeout per run is 0h 10m 00s |
| tst_test.c:1025: BROK: Test killed by SIGSEGV! |
| |
| Signed-off-by: Li Wang <liwang@redhat.com> |
| Acked-by: Jan Stancek <jstancek@redhat.com> |
| Upstream-Status: Accepted [https://github.com/linux-test-project/ltp/commit/67af7dbe8bdf29f9ed980d8d29feeae32a0a7a1d] |
| --- |
| lib/safe_macros.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| diff --git a/lib/safe_macros.c b/lib/safe_macros.c |
| index c48e436dc..abdeca013 100644 |
| --- a/lib/safe_macros.c |
| +++ b/lib/safe_macros.c |
| @@ -708,6 +708,9 @@ static int is_fuse(const char *fs_type) |
| { |
| unsigned int i; |
| |
| + if (!fs_type) |
| + return 0; |
| + |
| for (i = 0; i < ARRAY_SIZE(fuse_fs_types); i++) { |
| if (!strcmp(fuse_fs_types[i], fs_type)) |
| return 1; |
| -- |
| 2.11.0 |
| |