https://github.com/torvalds/linux
Revision d6f2589ad561aa5fa39f347eca6942668b7560a1 authored by Jan Kara on 25 March 2014, 20:37:09 UTC, committed by Linus Torvalds on 26 March 2014, 00:42:16 UTC
anon_inodefs filesystem is a kernel internal filesystem userspace shouldn't mess with. Remove registration of it so userspace cannot even try to mount it (which would fail anyway because the filesystem is MS_NOUSER). This fixes an oops triggered by trinity when it tried mounting anon_inodefs which overwrote anon_inode_inode pointer while other CPU has been in anon_inode_getfile() between ihold() and d_instantiate(). Thus effectively creating dentry pointing to an inode without holding a reference to it. Reported-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tip revision: d6f2589ad561aa5fa39f347eca6942668b7560a1 authored by Jan Kara on 25 March 2014, 20:37:09 UTC
fs: Avoid userspace mounting anon_inodefs filesystem
fs: Avoid userspace mounting anon_inodefs filesystem
Tip revision: d6f2589
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 1.1 KB |
| .mailmap | -rw-r--r-- | 4.4 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 93.3 KB |
| Kbuild | -rw-r--r-- | 2.5 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 267.3 KB |
| Makefile | -rw-r--r-- | 49.1 KB |
| README | -rw-r--r-- | 18.3 KB |
| REPORTING-BUGS | -rw-r--r-- | 7.3 KB |
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