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MFC r207278:

Browse source 
MFP4: @177254

  Add missing CURVNET_RESTORE() calls for multiple code paths, to stop
  leaking the currently cached vnet into callers and to the process.

Sponsored by: The FreeBSD Foundation
Sponsored by: CK Software GmbH
This commit is contained in:
Bjoern A. Zeeb 2010-05-02 16:39:15 +00:00
parent 7f6b24dccf
commit 6419e07f19
1 changed files with 8 additions and 3 deletions
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11
sys/net/bpf.c
View file

@ -1328,6 +1328,7 @@ bpfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags,
/* FALLSTHROUGH */
default:
CURVNET_RESTORE();
return (EINVAL);
}
@ -1335,6 +1336,7 @@ bpfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags,
if (d->bd_sbuf != NULL || d->bd_hbuf != NULL ||
d->bd_fbuf != NULL || d->bd_bif != NULL) {
BPFD_UNLOCK(d);
CURVNET_RESTORE();
return (EBUSY);
}
d->bd_bufmode = *(u_int *)addr;
@ -1342,13 +1344,16 @@ bpfioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags,
break;
case BIOCGETZMAX:
return (bpf_ioctl_getzmax(td, d, (size_t *)addr));
error = bpf_ioctl_getzmax(td, d, (size_t *)addr);
break;
case BIOCSETZBUF:
return (bpf_ioctl_setzbuf(td, d, (struct bpf_zbuf *)addr));
error = bpf_ioctl_setzbuf(td, d, (struct bpf_zbuf *)addr);
break;
case BIOCROTZBUF:
return (bpf_ioctl_rotzbuf(td, d, (struct bpf_zbuf *)addr));
error = bpf_ioctl_rotzbuf(td, d, (struct bpf_zbuf *)addr);
break;
}
CURVNET_RESTORE();
return (error);