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Groups > linux.kernel > #1613279
| From | Christoph Hellwig <hch@lst.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 2/2] fs: reject unknown open flags |
| Date | 2017-03-30 18:40 +0200 |
| Message-ID | <tqLh8-GX-15@gated-at.bofh.it> (permalink) |
| References | <tqLh7-GX-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
This way userspace can probe for actually supported flags. Signed-off-by: Christoph Hellwig <hch@lst.de> --- fs/open.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/open.c b/fs/open.c index 949cef29c3bb..9106ed7310f0 100644 --- a/fs/open.c +++ b/fs/open.c @@ -900,6 +900,9 @@ static inline int build_open_flags(int flags, umode_t mode, struct open_flags *o int lookup_flags = 0; int acc_mode = ACC_MODE(flags); + if (flags & ~VALID_OPEN_FLAGS) + return -EINVAL; + if (flags & (O_CREAT | __O_TMPFILE)) op->mode = (mode & S_IALLUGO) | S_IFREG; else -- 2.11.0
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RFC: reject unknown open flags Christoph Hellwig <hch@lst.de> - 2017-03-30 18:40 +0200
[PATCH 1/2] fs: add a VALID_OPEN_FLAGS Christoph Hellwig <hch@lst.de> - 2017-03-30 18:40 +0200
[PATCH 2/2] fs: reject unknown open flags Christoph Hellwig <hch@lst.de> - 2017-03-30 18:40 +0200
Re: [PATCH 2/2] fs: reject unknown open flags Linus Torvalds <torvalds@linux-foundation.org> - 2017-03-30 19:10 +0200
Re: RFC: reject unknown open flags Linus Torvalds <torvalds@linux-foundation.org> - 2017-03-30 19:10 +0200
Re: RFC: reject unknown open flags Christoph Hellwig <hch@lst.de> - 2017-03-30 19:30 +0200
Re: RFC: reject unknown open flags Linus Torvalds <torvalds@linux-foundation.org> - 2017-03-30 20:30 +0200
Re: RFC: reject unknown open flags Christoph Hellwig <hch@lst.de> - 2017-03-30 20:30 +0200
Re: RFC: reject unknown open flags Linus Torvalds <torvalds@linux-foundation.org> - 2017-03-30 20:50 +0200
Re: RFC: reject unknown open flags Boaz Harrosh <boaz@plexistor.com> - 2017-03-30 22:10 +0200
Re: RFC: reject unknown open flags Paul Eggert <eggert@cs.ucla.edu> - 2017-03-30 21:10 +0200
Re: RFC: reject unknown open flags Linus Torvalds <torvalds@linux-foundation.org> - 2017-03-30 21:20 +0200
Re: RFC: reject unknown open flags Florian Weimer <fw@deneb.enyo.de> - 2017-03-30 21:40 +0200
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