发布时间: 2024年8月30日
修改时间: 2024年8月30日
In the Linux kernel, the following vulnerability has been resolved: sfc: fix null pointer dereference in efx_hard_start_xmit Trying to get the channel from the tx_queue variable here is wrong because we can only be here if tx_queue is NULL, so we shouldn't dereference it. As the above comment in the code says, this is very unlikely to happen, but it's wrong anyway so let's fix it. I hit this issue because of a different bug that caused tx_queue to be NULL. If that happens, this is the error message that we get here: BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [...] RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc]
NVD | openEuler | |
---|---|---|
Confidentiality | None | None |
Attack Vector | Local | Local |
CVSS评分 | 5.5 | 5.5 |
Attack Complexity | Low | Low |
Privileges Required | Low | Low |
Scope | Unchanged | Unchanged |
Integrity | None | None |
User Interaction | None | None |
Availability | High | High |
公告名 | 概要 | 发布时间 |
---|---|---|
KylinSec-SA-2024-2684 | In the Linux kernel, the following vulnerability has been resolved: sfc: fix null pointer dereference in efx_hard_start_xmit Trying to get the channel from the tx_queue variable here is wrong because we can only be here if tx_queue is NULL, so we shouldn't dereference it. As the above comment in the code says, this is very unlikely to happen, but it's wrong anyway so let's fix it. I hit this issue because of a different bug that caused tx_queue to be NULL. If that happens, this is the error message that we get here: BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [...] RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc] | 2024年6月13日 |
KylinSec-SA-2024-4977 | kernel security update | 2025年2月28日 |
产品 | 包 | 状态 |
---|---|---|
KY3.5.2 | kernel | Fixed |