diff options
| author | Yochai Eisenrich <echelonh@gmail.com> | 2026-03-29 00:14:36 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-30 17:56:40 -0700 |
| commit | e6e3eb5ee89ac4c163d46429391c889a1bb5e404 (patch) | |
| tree | e57452ede86c59b587be70dd6ef39962a8267baa /arch/ppc/git@git.tavy.me:linux.git | |
| parent | ddc748a391dd8642ba6b2e4fe22e7f2ddf84b7f0 (diff) | |
net: sched: cls_api: fix tc_chain_fill_node to initialize tcm_info to zero to prevent an info-leak
When building netlink messages, tc_chain_fill_node() never initializes
the tcm_info field of struct tcmsg. Since the allocation is not zeroed,
kernel heap memory is leaked to userspace through this 4-byte field.
The fix simply zeroes tcm_info alongside the other fields that are
already initialized.
Fixes: 32a4f5ecd738 ("net: sched: introduce chain object to uapi")
Signed-off-by: Yochai Eisenrich <echelonh@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://patch.msgid.link/20260328211436.1010152-1-echelonh@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/ppc/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions