git: fc1c787aa015 - main - linux(4): Properly allocate buffer for kern_getdirentries in readdir

The branch main has been updated by dchagin:

URL: https://cgit.FreeBSD.org/src/commit/?id=fc1c787aa0157090e765ebba484e6e290e99f177

commit fc1c787aa0157090e765ebba484e6e290e99f177
Author:     Dmitry Chagin <dchagin@FreeBSD.org>
AuthorDate: 2023-07-18 21:44:15 +0000
Commit:     Dmitry Chagin <dchagin@FreeBSD.org>
CommitDate: 2023-07-18 21:44:15 +0000

    linux(4): Properly allocate buffer for kern_getdirentries in readdir
    
    Looks like prior to ino64 project the size of the struct linux_dirent
    was greater (or equal) to the size of the native struct dirent so the
    native dirent fit into the buffer. After ino64 project the size of the
    native struct dirent has increased.
    
    Spotted by gcc12.
    MFC after:              2 weeks
---
 sys/compat/linux/linux_file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/compat/linux/linux_file.c b/sys/compat/linux/linux_file.c
index 4e8c3f435261..a5b8a4270dc0 100644
--- a/sys/compat/linux/linux_file.c
+++ b/sys/compat/linux/linux_file.c
@@ -560,7 +560,7 @@ linux_readdir(struct thread *td, struct linux_readdir_args *args)
 	struct l_dirent *linux_dirent;
 	int buflen, error;
 
-	buflen = LINUX_RECLEN(LINUX_NAME_MAX);
+	buflen = sizeof(*bdp);
 	buf = malloc(buflen, M_TEMP, M_WAITOK);
 
 	error = kern_getdirentries(td, args->fd, buf, buflen,