dumbbell 2008-01-28 10:26:25 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_7)
sys/kern vfs_aio.c
sys/sys event.h
Log:
MFC:
sys/kern/vfs_aio.c; revision 1.237
sys/sys/event.h; revision 1.38
When asked to use kqueue, AIO stores its internal state in the
`kn_sdata' member of the newly registered knote. The problem is that
this member is overwritten by a call to kevent(2) with the EV_ADD flag,
targetted at the same kevent/knote. For instance, a userland application
may set the pointer to NULL, leading to a panic.
A testcase was provided by the submitter.
PR: kern/118911
Submitted by: MOROHOSHI Akihiko <[EMAIL PROTECTED]>
Revision Changes Path
1.233.2.1 +6 -4 src/sys/kern/vfs_aio.c
1.37.2.1 +2 -0 src/sys/sys/event.h
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