4.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Al Viro <v...@zeniv.linux.org.uk>
commit 86cc05840a0da1afcb6b8151b53f3b606457c91b upstream.
Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
fs/coredump.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -657,7 +657,7 @@ void do_coredump(const siginfo_t *siginf
*/
if (!uid_eq(inode->i_uid, current_fsuid()))
goto close_fail;
- if (!cprm.file->f_op->write)
+ if (!(cprm.file->f_mode & FMODE_CAN_WRITE))
goto close_fail;
if (do_truncate(cprm.file->f_path.dentry, 0, 0, cprm.file))
goto close_fail;
--
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