CVE-2023-31436
High
Description
qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedApr 28, 2023
First seenApr 28, 2023
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- linux linux_kernel4.14.314, 4.19.282, 5.4.242, 5.10.179, 5.15.109, 6.1.26, 6.2.13 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.7 ≤ v < 4.14.314, 4.15 ≤ v < 4.19.282, 4.20 ≤ v < 5.4.242, 5.5.0 ≤ v < 5.10.179, 5.11 ≤ v < 5.15.109, 5.16 ≤ v < 6.1.26, 6.2 ≤ v < 6.2.13 | 4.14.314, 4.19.282, 5.4.242, 5.10.179, 5.15.109, 6.1.26, 6.2.13 |
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