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| author | rmacklem <rmacklem@FreeBSD.org> | 2015-12-02 21:48:34 +0000 |
|---|---|---|
| committer | rmacklem <rmacklem@FreeBSD.org> | 2015-12-02 21:48:34 +0000 |
| commit | 68e44b1d7045a500ada4760ebd096f99e1544d2e (patch) | |
| tree | 86bc954999cbb61df412a1e4c59dd1eff688796e /sys/dev/xen/control/control.c | |
| parent | ccce6feaa419fbc5fc1c0f617f6ad974b07a58c4 (diff) | |
| download | FreeBSD-src-68e44b1d7045a500ada4760ebd096f99e1544d2e.zip FreeBSD-src-68e44b1d7045a500ada4760ebd096f99e1544d2e.tar.gz | |
MFC: r291035
The problem report was for a crash that happened when smbfs was
trying to do a mount. Given the backtrace,
it appears that the crash occurred when smb_vc_create() failed and then
called smb_vc_put() with vcp->vc_iod == NULL. smb_vc_put() subsequently
called smb_vc_disconnect() with vcp->vc_iod == NULL, causing the crash.
This patch adds a check for vcp->vc_iod != NULL in smb_vc_disconnect() to
avoid the crash. It also fixes the case in smb_vc_create() where
kproc_create() fails so that it destroys the mutexes and sets
vcp->vc_iod == NULL before free()'ing the iod structure.
Diffstat (limited to 'sys/dev/xen/control/control.c')
0 files changed, 0 insertions, 0 deletions
