Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net/sched: sch_qfq: do not free existing class in qfq_change_class() Fixes qfq_change_class() error case. cl->qdisc and cl should only be freed if a new class and qdisc were allocated, or we risk various UAF.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 462dbc9101acd38e92eda93c0726857517a24bbd before 2a64fb9b47afffeb5dbab5fd3a518e1436dcc90e; affected 462dbc9101acd38e92eda93c0726857517a24bbd before cff6cd703f41d8071995956142729e4bba160363; affected 462dbc9101acd38e92eda93c0726857517a24bbd before f06f7635499bc806cbe2bbc8805c7cef8b1edddf; affected 462dbc9101acd38e92eda93c0726857517a24bbd before 0a234660dc70ce45d771cbc76b20d925b73ec160; affected 462dbc9101acd38e92eda93c0726857517a24bbd before 362e269bb03f7076ba9990e518aeddb898232e50; affected 462dbc9101acd38e92eda93c0726857517a24bbd before e9d8f11652fa08c647bf7bba7dd8163241a332cd; affected 462dbc9101acd38e92eda93c0726857517a24bbd before 3879cffd9d07aa0377c4b8835c4f64b4fb24ac78 |
| Linux / Linux | affected 3.8; unaffected 0 before 3.8; unaffected 5.10.249 through 5.10.*; unaffected 5.15.199 through 5.15.*; unaffected 6.1.162 through 6.1.*; unaffected 6.6.122 through 6.6.*; unaffected 6.12.67 through 6.12.*; unaffected 6.18.7 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2a64fb9b47afffeb5dbab5fd3a518e1436dcc90e
- https://git.kernel.org/stable/c/cff6cd703f41d8071995956142729e4bba160363
- https://git.kernel.org/stable/c/f06f7635499bc806cbe2bbc8805c7cef8b1edddf
- https://git.kernel.org/stable/c/0a234660dc70ce45d771cbc76b20d925b73ec160
- https://git.kernel.org/stable/c/362e269bb03f7076ba9990e518aeddb898232e50
- https://git.kernel.org/stable/c/e9d8f11652fa08c647bf7bba7dd8163241a332cd
- https://git.kernel.org/stable/c/3879cffd9d07aa0377c4b8835c4f64b4fb24ac78
ADP enrichment
No English description supplied.
No references supplied.