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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.

🗓️ 06 May 2023 07:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 4 Views

qfq_change_class in Linux kernel before 6.2.13 allows out-of-bounds write when lmax exceeds QFQ_MIN_LMAX.

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Rows per page
Vulners
Node
microsoftcbl2_kernel_5.15.111.1-1Range<5.15.111.1-1
OR
microsoftcbl2_hyperv-daemons_5.15.111.1-1Range<5.15.111.1-1
OR
microsoftcm1_kernel_5.10.181.1-1Range<5.10.181.1-1
OR
microsoftcm1_hyperv-daemons_5.10.179.1-1Range<5.10.179.1-1

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15 May 2023 07:00Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17.8
EPSS0.00031
SSVC
Linux kernelqfq change classout of bounds writelmax limitminimum lmax
4