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[LTS 9.2] CVE-2023-51042 and CVE-2023-40283 #493

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Merged
merged 2 commits into from
Aug 13, 2025
Merged

[LTS 9.2] CVE-2023-51042 and CVE-2023-40283 #493

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66e550c
drm/amdgpu: Fix potential fence use-after-free v2
shreeya-patel98 Aug 12, 2025
e8b7347
Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_ready_cb
shreeya-patel98 Aug 12, 2025
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6 changes: 3 additions & 3 deletions drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1522,15 +1522,15 @@ static int amdgpu_cs_wait_all_fences(struct amdgpu_device *adev,
continue;

r = dma_fence_wait_timeout(fence, true, timeout);
if (r > 0 && fence->error)
r = fence->error;

dma_fence_put(fence);
if (r < 0)
return r;

if (r == 0)
break;

if (fence->error)
return fence->error;
}

memset(wait, 0, sizeof(*wait));
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2 changes: 2 additions & 0 deletions net/bluetooth/l2cap_sock.c
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ static const struct proto_ops l2cap_sock_ops;
static void l2cap_sock_init(struct sock *sk, struct sock *parent);
static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
int proto, gfp_t prio, int kern);
static void l2cap_sock_cleanup_listen(struct sock *parent);

bool l2cap_is_socket(struct socket *sock)
{
Expand Down Expand Up @@ -1415,6 +1416,7 @@ static int l2cap_sock_release(struct socket *sock)
if (!sk)
return 0;

l2cap_sock_cleanup_listen(sk);
bt_sock_unlink(&l2cap_sk_list, sk);

err = l2cap_sock_shutdown(sock, SHUT_RDWR);
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