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| author | Christian Brauner <brauner@kernel.org> | 2025-10-28 09:45:49 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-18 14:02:44 +0100 |
| commit | ae7a542dbab5bc5af5aa9789d27e15d3791e357f (patch) | |
| tree | d1735e343e6775bb3fd4f6567cea6bb8617bf0ee /fs/pidfs.c | |
| parent | eab1b59664ee29852587a967517ce680b29ad501 (diff) | |
| download | linux-ae7a542dbab5bc5af5aa9789d27e15d3791e357f.tar.gz linux-ae7a542dbab5bc5af5aa9789d27e15d3791e357f.tar.bz2 linux-ae7a542dbab5bc5af5aa9789d27e15d3791e357f.zip | |
pidfs: add missing BUILD_BUG_ON() assert on struct pidfd_info
[ Upstream commit d8fc51d8fa3b9894713e7eebcf574bee488fa3e1 ]
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: 1d8db6fd698d ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/pidfs.c')
| -rw-r--r-- | fs/pidfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/pidfs.c b/fs/pidfs.c index 0ef5b47d796a..f4d7dac1b449 100644 --- a/fs/pidfs.c +++ b/fs/pidfs.c @@ -306,6 +306,8 @@ static long pidfd_info(struct file *file, unsigned int cmd, unsigned long arg) const struct cred *c; __u64 mask; + BUILD_BUG_ON(sizeof(struct pidfd_info) != PIDFD_INFO_SIZE_VER1); + if (!uinfo) return -EINVAL; if (usize < PIDFD_INFO_SIZE_VER0) |