In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Fix potential NULL pointer dereference in header processing If siw_get_hdr() returns -EINVAL before set_rx_fpdu_context(), qp->rx_fpdu can be NULL. The error path in siw_tcp_rx_data() dereferences qp->rx_fpdu->more_ddp_segs without checking, which may lead to a NULL pointer deref. Only check more_ddp_segs when rx_fpdu is present. KASAN splat: [ 101.384271] KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7] [ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50
En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: RDMA/siw: Soluciona una posible desreferencia de puntero NULL en el procesamiento de encabezados Si siw_get_hdr() devuelve -EINVAL antes de set_rx_fpdu_context(), qp->rx_fpdu puede ser NULL. La ruta de error en siw_tcp_rx_data() desreferencia qp->rx_fpdu->more_ddp_segs sin verificar, lo que puede llevar a una desreferencia de puntero NULL. Solo verificar more_ddp_segs cuando rx_fpdu está presente. KASAN splat: [ 101.384271] KASAN: desreferencia de puntero nulo en el rango [0x00000000000000c0-0x00000000000000c7] [ 101.385869] RIP: 0010:siw_tcp_rx_data+0x13ad/0x1e50
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Type: Secondary
Exploitability Score: 3.9
Impact Score: 3.6
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-476
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x702bdc9f7900> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x702bdc9f4500> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x702bdc9f5800> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x702bdd6a6980> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x702bdc9f6240> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x702bdd6a4240> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x702bdd6a61c0> | Operating System |
| linux | linux_kernel | 5.3 | <built-in method update of dict object at 0x702bdc9f6800> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:5.3:-:*:*:*:*:*:* |