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| author | Michal Kazior <michal@plume.com> | 2019-09-25 14:03:13 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-10-08 15:14:46 +0200 |
| commit | 1f1988d5256c9705a4f296ed48cdb7e463525ba4 (patch) | |
| tree | 929b37d9ed9f45ea27de2ed4da036d74c5dc7ce6 | |
| parent | 6c1af283f73fb8640cd7273c2bf13eb102f80954 (diff) | |
| download | busybox-1f1988d5256c9705a4f296ed48cdb7e463525ba4.tar.gz | |
udhcpc: fix segmentation fault on empty bin opt
The following caused udhcpc to segfault:
busybox udhcpc -i lo -s /dev/null -x 0x3d:
function old new delta
udhcp_str2optset 629 641 +12
Signed-off-by: Michal Kazior <michal@plume.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | networking/udhcp/common.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/networking/udhcp/common.c b/networking/udhcp/common.c index 4a452cdb9..9ec752dfc 100644 --- a/networking/udhcp/common.c +++ b/networking/udhcp/common.c @@ -539,7 +539,7 @@ int FAST_FUNC udhcp_str2optset(const char *const_str, void *arg, if (optflag->flags == OPTION_BIN) { val = strtok(NULL, ""); /* do not split "'q w e'" */ - trim(val); + if (val) trim(val); } else val = strtok(NULL, ", \t"); if (!val) |