CVE-2025-68325
中文标题:
（暂无数据）
英文标题:
net/sched: sch_cake: Fix incorrect qlen reduction in cake_drop
漏洞描述
中文描述:
（暂无数据）
英文描述:
In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_cake: Fix incorrect qlen reduction in cake_drop In cake_drop(), qdisc_tree_reduce_backlog() is used to update the qlen and backlog of the qdisc hierarchy. Its caller, cake_enqueue(), assumes that the parent qdisc will enqueue the current packet. However, this assumption breaks when cake_enqueue() returns NET_XMIT_CN: the parent qdisc stops enqueuing current packet, leaving the tree qlen/backlog accounting inconsistent. This mismatch can lead to a NULL dereference (e.g., when the parent Qdisc is qfq_qdisc). This patch computes the qlen/backlog delta in a more robust way by observing the difference before and after the series of cake_drop() calls, and then compensates the qdisc tree accounting if cake_enqueue() returns NET_XMIT_CN. To ensure correct compensation when ACK thinning is enabled, a new variable is introduced to keep qlen unchanged.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| Linux | Linux | 7689ab22de36f8db19095f6bdf11f28cfde92f5c | - | - |
cpe:2.3:a:linux:linux:7689ab22de36f8db19095f6bdf11f28cfde92f5c:*:*:*:*:*:*:*
|
| Linux | Linux | de04ddd2980b48caa8d7e24a7db2742917a8b280 | - | - |
cpe:2.3:a:linux:linux:de04ddd2980b48caa8d7e24a7db2742917a8b280:*:*:*:*:*:*:*
|
| Linux | Linux | 0dacfc5372e314d1219f03e64dde3ab495a5a25e | - | - |
cpe:2.3:a:linux:linux:0dacfc5372e314d1219f03e64dde3ab495a5a25e:*:*:*:*:*:*:*
|
| Linux | Linux | 710866fc0a64eafcb8bacd91bcb1329eb7e5035f | - | - |
cpe:2.3:a:linux:linux:710866fc0a64eafcb8bacd91bcb1329eb7e5035f:*:*:*:*:*:*:*
|
| Linux | Linux | aa12ee1c1bd260943fd6ab556d8635811c332eeb | - | - |
cpe:2.3:a:linux:linux:aa12ee1c1bd260943fd6ab556d8635811c332eeb:*:*:*:*:*:*:*
|
| Linux | Linux | 62d591dde4defb1333d202410609c4ddeae060b3 | - | - |
cpe:2.3:a:linux:linux:62d591dde4defb1333d202410609c4ddeae060b3:*:*:*:*:*:*:*
|
| Linux | Linux | 6.17 | - | - |
cpe:2.3:a:linux:linux:6.17:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
参考链接
cve.org
cve.org
cve.org
cve.org
nvd.nist.gov
nvd.nist.gov
nvd.nist.gov
nvd.nist.gov
CVSS评分详情
NOT_EXTRACTED
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2025-68325 |
2025-12-19 03:24:14 | 2026-01-12 02:12:30 |
| NVD | nvd_CVE-2025-68325 |
2025-12-20 03:16:54 | 2026-01-12 02:28:13 |
版本与语言
安全公告
变更历史
查看详细变更
- references_count: 6 -> 8
查看详细变更
- references_count: 4 -> 6
查看详细变更
- data_sources: ['cve'] -> ['cve', 'nvd']