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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2018-08-22 07:55:38 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 20:52:46 +0300 |
| commit | fc37191272a972d449bab3d8247cf52cadf5d4e6 (patch) | |
| tree | 17510f69e906aacff6c2a5c89f72ac4f17fb40f4 /include/linux/dma-noncoherent.h | |
| parent | 060288a7320b2837a8ff2af1b3643bdbd5e568f6 (diff) | |
| download | linux-fc37191272a972d449bab3d8247cf52cadf5d4e6.tar.xz | |
userns: use refcount_t for reference counting instead atomic_t
refcount_t type and corresponding API should be used instead of atomic_t
wh en the variable is used as a reference counter. This avoids accidental
refcounter overflows that might lead to use-after-free situations.
Link: http://lkml.kernel.org/r/20180703200141.28415-6-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/dma-noncoherent.h')
0 files changed, 0 insertions, 0 deletions