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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-12 10:52:03 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-12 10:52:03 +0900 |
| commit | 79360ddd73dfe9a26f49ef4e27b8c26612929b0e (patch) | |
| tree | a8b0d226e0d83ea4e3a8c27b091a7121dbb9638b /fs/file.c | |
| parent | 8213a2f3eeafdecf06dd718cb4130372263f6067 (diff) | |
| parent | 98f6ef64b15a48f15062aff5d143b5d9a6ae7711 (diff) | |
| download | linux-79360ddd73dfe9a26f49ef4e27b8c26612929b0e.tar.bz2 | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull pile 2 of vfs updates from Al Viro:
"Stuff in this one - assorted fixes, lglock tidy-up, death to
lock_super().
There'll be a VFS pile tomorrow (with patches from Jeff Layton,
sanitizing getname() and related parts of audit and preparing for
ESTALE fixes), but I'd rather push the stuff in this one ASAP - some
of the bugs closed here are quite unpleasant."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vfs: bogus warnings in fs/namei.c
consitify do_mount() arguments
lglock: add DEFINE_STATIC_LGLOCK()
lglock: make the per_cpu locks static
lglock: remove unused DEFINE_LGLOCK_LOCKDEP()
MAX_LFS_FILESIZE definition for 64bit needs LL...
tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking
vfs: drop lock/unlock super
ufs: drop lock/unlock super
sysv: drop lock/unlock super
hpfs: drop lock/unlock super
fat: drop lock/unlock super
ext3: drop lock/unlock super
exofs: drop lock/unlock super
dup3: Return an error when oldfd == newfd.
fs: handle failed audit_log_start properly
fs: prevent use after free in auditing when symlink following was denied
Diffstat (limited to 'fs/file.c')
| -rw-r--r-- | fs/file.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/file.c b/fs/file.c index 0f1bda4bebfa..d3b5fa80b71b 100644 --- a/fs/file.c +++ b/fs/file.c @@ -922,6 +922,9 @@ SYSCALL_DEFINE3(dup3, unsigned int, oldfd, unsigned int, newfd, int, flags) if ((flags & ~O_CLOEXEC) != 0) return -EINVAL; + if (unlikely(oldfd == newfd)) + return -EINVAL; + if (newfd >= rlimit(RLIMIT_NOFILE)) return -EMFILE; |