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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-04 21:24:47 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-04 21:24:47 +0200 |
| commit | 4c205c84e249e0a91dcfabe461d77667ec9b2d05 (patch) | |
| tree | 211606956d526d055ccce3f7f5cdc514d3be05fb /Documentation/trace | |
| parent | Merge tag 'drm-next-2020-04-03-1' of git://anongit.freedesktop.org/drm/drm (diff) | |
| parent | KEYS: Avoid false positive ENOMEM error on key read (diff) | |
| download | linux-4c205c84e249e0a91dcfabe461d77667ec9b2d05.tar.xz linux-4c205c84e249e0a91dcfabe461d77667ec9b2d05.zip | |
Merge tag 'keys-fixes-20200329' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull keyrings fixes from David Howells:
"Here's a couple of patches that fix a circular dependency between
holding key->sem and mm->mmap_sem when reading data from a key.
One potential issue is that a filesystem looking to use a key inside,
say, ->readpages() could deadlock if the key being read is the key
that's required and the buffer the key is being read into is on a page
that needs to be fetched.
The case actually detected is a bit more involved - with a filesystem
calling request_key() and locking the target keyring for write - which
could be being read"
* tag 'keys-fixes-20200329' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
KEYS: Avoid false positive ENOMEM error on key read
KEYS: Don't write out to userspace while holding key semaphore
Diffstat (limited to 'Documentation/trace')
0 files changed, 0 insertions, 0 deletions