xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Garpu 0
Kode Masalah Tarik Permintaan Actions Packages Projects Rilis Wiki Kegiatan

net, atm: convert atm_dev.refcnt from atomic_t to refcount_t

Telusuri Sumber 
refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.

Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Reshetova, Elena
2017-07-04 15:53:01 +03:00
committed by David S. Miller
orang tua e0542dd518
melakukan 458bc30cec
3 mengubah file dengan 6 tambahan dan 5 penghapusan
Download Patch File Download Diff File Expand all files Collapse all files

2
net/atm/proc.c
Melihat File

@@ -61,7 +61,7 @@ static void atm_dev_info(struct seq_file *seq, const struct atm_dev *dev)
add_stats(seq, "0", &dev->stats.aal0);
seq_puts(seq, " ");
add_stats(seq, "5", &dev->stats.aal5);
seq_printf(seq, "\t[%d]", atomic_read(&dev->refcnt));
seq_printf(seq, "\t[%d]", refcount_read(&dev->refcnt));
seq_putc(seq, '\n');
}

2
net/atm/resources.c
Melihat File

@@ -109,7 +109,7 @@ struct atm_dev *atm_dev_register(const char *type, struct device *parent,
else
memset(&dev->flags, 0, sizeof(dev->flags));
memset(&dev->stats, 0, sizeof(dev->stats));
atomic_set(&dev->refcnt, 1);
refcount_set(&dev->refcnt, 1);
if (atm_proc_dev_register(dev) < 0) {
pr_err("atm_proc_dev_register failed for dev %s\n", type);