diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-02-23 20:32:18 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-02-26 05:59:18 +0300 |
| commit | 5cc619583c7e735c4fb801bede671fb6f9c79425 (patch) | |
| tree | 6b346b58e46f79425fa522760ee1de68576690af | |
| parent | 4b063c002ca759d1b299988ee23f564c9609c875 (diff) | |
| download | linux-5cc619583c7e735c4fb801bede671fb6f9c79425.tar.xz | |
vsock: Use container_of() to get net namespace in sysctl handlers
current->nsproxy is should not be accessed directly as syzbot has found
that it could be NULL at times, causing crashes. Fix up the af_vsock
sysctl handlers to use container_of() to deal with the current net
namespace instead of attempting to rely on current.
This is the same type of change done in commit 7f5611cbc487 ("rds:
sysctl: rds_tcp_{rcv,snd}buf: avoid using current->nsproxy")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Bobby Eshleman <bobbyeshleman@meta.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Fixes: eafb64f40ca4 ("vsock: add netns to vsock core")
Link: https://patch.msgid.link/2026022318-rearview-gallery-ae13@gregkh
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/vmw_vsock/af_vsock.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 9880756d9eff..f4062c6a1944 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -2825,7 +2825,7 @@ static int vsock_net_mode_string(const struct ctl_table *table, int write, if (write) return -EPERM; - net = current->nsproxy->net_ns; + net = container_of(table->data, struct net, vsock.mode); return __vsock_net_mode_string(table, write, buffer, lenp, ppos, vsock_net_mode(net), NULL); @@ -2838,7 +2838,7 @@ static int vsock_net_child_mode_string(const struct ctl_table *table, int write, struct net *net; int ret; - net = current->nsproxy->net_ns; + net = container_of(table->data, struct net, vsock.child_ns_mode); ret = __vsock_net_mode_string(table, write, buffer, lenp, ppos, vsock_net_child_mode(net), &new_mode); |