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| author | Ingo Molnar <mingo@kernel.org> | 2020-01-20 08:43:44 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-01-20 08:43:44 +0100 |
| commit | cb6c82df684e912b10245c13200ef09c9d372fc2 (patch) | |
| tree | 98448cea990ecf17ad39798980ab18165b72b7ac /kernel/seccomp.c | |
| parent | perf/x86/amd: Add support for Large Increment per Cycle Events (diff) | |
| parent | Linux 5.5-rc7 (diff) | |
| download | linux-cb6c82df684e912b10245c13200ef09c9d372fc2.tar.xz linux-cb6c82df684e912b10245c13200ef09c9d372fc2.zip | |
Merge tag 'v5.5-rc7' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/seccomp.c')
| -rw-r--r-- | kernel/seccomp.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/seccomp.c b/kernel/seccomp.c index 12d2227e5786..b6ea3dcb57bf 100644 --- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -1026,6 +1026,13 @@ static long seccomp_notify_recv(struct seccomp_filter *filter, struct seccomp_notif unotif; ssize_t ret; + /* Verify that we're not given garbage to keep struct extensible. */ + ret = check_zeroed_user(buf, sizeof(unotif)); + if (ret < 0) + return ret; + if (!ret) + return -EINVAL; + memset(&unotif, 0, sizeof(unotif)); ret = down_interruptible(&filter->notif->request); |