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  1. 03 7月, 2016 1 次提交
  3. 29 6月, 2016 2 次提交
    • M
      ovl: get_write_access() in truncate · 03bea604
      由 Miklos Szeredi 提交于 
      When truncating a file we should check write access on the underlying
inode.  And we should do so on the lower file as well (before copy-up) for
consistency.

Original patch and test case by Aihua Zhang.

 - - >o >o - - test.c - - >o >o - -
#include <stdio.h>
#include <errno.h>
#include <unistd.h>

int main(int argc, char *argv[])
{
	int ret;

	ret = truncate(argv[0], 4096);
	if (ret != -1) {
		fprintf(stderr, "truncate(argv[0]) should have failed\n");
		return 1;
	}
	if (errno != ETXTBSY) {
		perror("truncate(argv[0])");
		return 1;
	}

	return 0;
}
 - - >o >o - - >o >o - - >o >o - -
Reported-by: NAihua Zhang <zhangaihua1@huawei.com>
Signed-off-by: NMiklos Szeredi <mszeredi@redhat.com>
Cc: <stable@vger.kernel.org>
      03bea604
    • M
      ovl: fix dentry leak for default_permissions · a4859d75
      由 Miklos Szeredi 提交于 
      When using the 'default_permissions' mount option, ovl_permission() on
non-directories was missing a dput(alias), resulting in "BUG Dentry still
in use".
Signed-off-by: NMiklos Szeredi <mszeredi@redhat.com>
Fixes: 8d3095f4 ("ovl: default permissions")
Cc: <stable@vger.kernel.org> # v4.5+
      a4859d75
  5. 27 6月, 2016 2 次提交
  7. 25 6月, 2016 35 次提交