freebsd-nq/sys/fs/pseudofs
Konstantin Belousov c4df27d5c8 VOP_IOCTL takes unlocked vnode as an argument. Due to this, v_data may
be NULL or derefenced memory may become free at arbitrary moment.

Lock the vnode in cd9660, devfs and pseudofs implementation of VOP_IOCTL
to prevent reclaim; check whether the vnode was already reclaimed after
the lock is granted.

Reported by:	georg at dts su
Reviewed by:	des (pseudofs)
MFC after:	2 weeks
2009-06-10 13:57:36 +00:00
..
pseudofs_fileno.c Make pseudofs (and consequently procfs, linprocfs and linsysfs) MPSAFE. 2007-04-15 17:10:01 +00:00
pseudofs_internal.h Make pseudofs (and consequently procfs, linprocfs and linsysfs) MPSAFE. 2007-04-15 17:10:01 +00:00
pseudofs_vncache.c Drop Giant. 2009-06-06 00:44:13 +00:00
pseudofs_vnops.c VOP_IOCTL takes unlocked vnode as an argument. Due to this, v_data may 2009-06-10 13:57:36 +00:00
pseudofs.c Remove the thread argument from the FSD (File-System Dependent) parts of 2009-05-11 15:33:26 +00:00
pseudofs.h Remove the thread argument from the FSD (File-System Dependent) parts of 2009-05-11 15:33:26 +00:00