In the Linux kernel, the following vulnerability has been resolved: xsk: tighten UMEM headroom validation to account for tailroom and min frame The current headroom validation in xdp_umem_reg() could leave us with insufficient space dedicated to even receive minimum-sized ethernet frame. Furthermore if multi-buffer would come to play then skb_shared_info stored at the end of XSK frame would be corrupted. HW typically works with 128-aligned sizes so let us provide this value as bare minimum. Multi-buffer setting is known later in the configuration process so besides accounting for 128 bytes, let us also take care of tailroom space upfront.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | HIGH |
| Integrity Impact | HIGH |
| Availability Impact | HIGH |
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Type: Secondary
Exploitability Score: 1.8
Impact Score: 5.9
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
NVD-CWE-noinfo
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd369c0db40> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd369c0f540> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd3867115c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd38673b5c0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd369c0e500> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd369c0e900> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd3406e2e00> | Operating System |
| linux | linux_kernel | 5.7 | <built-in method update of dict object at 0x7fd36832b540> | Operating System |
| linux | linux_kernel | 5.7 | <built-in method update of dict object at 0x7fd340ac8140> | Operating System |
| linux | linux_kernel | 5.7 | <built-in method update of dict object at 0x7fd369c0d300> | Operating System |
| linux | linux_kernel | 5.7 | <built-in method update of dict object at 0x7fd342022a00> | Operating System |
| linux | linux_kernel | 5.7 | <built-in method update of dict object at 0x7fd369c0de80> | Operating System |
| linux | linux_kernel | 5.7 | <built-in method update of dict object at 0x7fd3686f58c0> | Operating System |
| linux | linux_kernel | 5.7 | <built-in method update of dict object at 0x7fd369b57a00> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd386739400> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd340acac00> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd369c0e380> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd3408f7bc0> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd2dbed2540> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd3408f7800> | Operating System |
| linux | linux_kernel | 7.0 | <built-in method update of dict object at 0x7fd3694f1d00> | 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:5.7:-:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:5.7:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:5.7:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:5.7:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:5.7:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:5.7:rc6:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:5.7:rc7:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:* |