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| author | Markus Armbruster <armbru@redhat.com> | 2018-10-17 10:26:32 +0200 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2018-10-19 14:51:34 +0200 |
| commit | 1245402e3c9be20200dcc469805f4156d93381e2 (patch) | |
| tree | 9dbb672b9bcf1690a68e53b97f3de5e2b3339059 /hw/9pfs | |
| parent | b1b769b0f3fd672886ade16da07b540acafeb1cc (diff) | |
| download | qemu-1245402e3c9be20200dcc469805f4156d93381e2.zip qemu-1245402e3c9be20200dcc469805f4156d93381e2.tar.gz qemu-1245402e3c9be20200dcc469805f4156d93381e2.tar.bz2 | |
9pfs: Fix CLI parsing crash on error
Calling error_report() in a function that takes an Error ** argument
is suspicious. 9p-handle.c's handle_parse_opts() does that, and then
fails without setting an error. Wrong. Its caller crashes when it
tries to report the error:
$ qemu-system-x86_64 -nodefaults -fsdev id=foo,fsdriver=handle
qemu-system-x86_64: -fsdev id=foo,fsdriver=handle: warning: handle backend is deprecated
qemu-system-x86_64: -fsdev id=foo,fsdriver=handle: fsdev: No path specified
Segmentation fault (core dumped)
Screwed up when commit 91cda4e8f37 (v2.12.0) converted the function to
Error. Fix by calling error_setg() instead of error_report().
Fixes: 91cda4e8f372602795e3a2f4bd2e3adaf9f82255
Cc: Greg Kurz <groug@kaod.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20181017082702.5581-9-armbru@redhat.com>
Diffstat (limited to 'hw/9pfs')
| -rw-r--r-- | hw/9pfs/9p-handle.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/9pfs/9p-handle.c b/hw/9pfs/9p-handle.c index f3641db..3465b1e 100644 --- a/hw/9pfs/9p-handle.c +++ b/hw/9pfs/9p-handle.c @@ -19,6 +19,7 @@ #include <grp.h> #include <sys/socket.h> #include <sys/un.h> +#include "qapi/error.h" #include "qemu/xattr.h" #include "qemu/cutils.h" #include "qemu/error-report.h" @@ -655,12 +656,13 @@ static int handle_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp) warn_report("handle backend is deprecated"); if (sec_model) { - error_report("Invalid argument security_model specified with handle fsdriver"); + error_setg(errp, + "Invalid argument security_model specified with handle fsdriver"); return -1; } if (!path) { - error_report("fsdev: No path specified"); + error_setg(errp, "fsdev: No path specified"); return -1; } fse->path = g_strdup(path); |