Gh0st
/
linux
mirror of https://github.com/torvalds/linux.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

pidfs: add missing BUILD_BUG_ON() assert on struct pidfd_info 

Validate that the size of struct pidfd_info is correctly updated.

Link: https://patch.msgid.link/20251028-work-coredump-signal-v1-4-ca449b7b7aa0@kernel.org
Fixes: 1d8db6fd69 ("pidfs, coredump: add PIDFD_INFO_COREDUMP")
Reviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-10-28 09:45:49 +01:00
parent 4061c43a99
commit d8fc51d8fa
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/pidfs.c
View File

@ -306,6 +306,8 @@ static long pidfd_info(struct file *file, unsigned int cmd, unsigned long arg)
const struct cred *c; const struct cred *c;
__u64 mask; __u64 mask;
BUILD_BUG_ON(sizeof(struct pidfd_info) != PIDFD_INFO_SIZE_VER1);
if (!uinfo) if (!uinfo)
return -EINVAL; return -EINVAL;
if (usize < PIDFD_INFO_SIZE_VER0) if (usize < PIDFD_INFO_SIZE_VER0)