File Systems Development related
A couple of weeks ago I was teaching our Developing file System Minifilters for Windows seminar here in Manchester, NH. A student asked a question about a behavior they were Read more
Well, THIS one was a surprise…After triggering a memory leak in a driver, the system surprisingly crashed due to a call to FsRtlIsNameInExpression:
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# ChildEBP RetAddr 00 b7226d0c 816167b8 nt!RtlpBreakWithStatusInstruction 01 b7226d60 816161c1 nt!KiBugCheckDebugBreak+0x1f 02 b7227154 81575746 nt!KeBugCheck2+0x7b3 03 b7227178 8157567d nt!KiBugCheck2+0xc6 04 b7227198 816126ed nt!KeBugCheckEx+0x19 05 b72271b4 81590522 nt!KiFatalExceptionHandler+0x1a 06 b72271d8 815904f4 nt!ExecuteHandler2+0x26 07 b722729c 8159049b nt!ExecuteHandler+0x24 08 b72275cc 814c61fe nt!RtlRaiseStatus+0x47 09 b7227610 89a72012 nt!RtlIsNameInExpression+0x74 0a b7227630 89a71496 Osr!MatchNameAgainstExpression+0x42 |
As best we could tell we Read more
As a file system filter developer, one of the great pains in life is when a file system operation fails deep in the bowels of the file system. For example, Read more
The week the Meltdown and Spectre vulnerabilities was one of the most fun weeks I’ve had in a while. Not only were the vulnerabilities mind-bendingly clever, that week had just Read more
It’s a known fact these days that Microsoft is feeling the Git love. As stated by Microsoft and reported by Ars Technica, the Windows operating system is even moving from its long lived Read more
Ever since the release of Filter Manager over 10 years ago, there have been rumblings about the fate of the existing legacy File System Filters (i.e. any FS filter that Read more
FESF for Linux is Now Shipping!
OSR's Framework for building transparent per-file encryption solutions now supports Linux!
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Developing File System Minifilters
29 July - 2 August 2019, Manchester, NH
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