cbcvebase.
CVE-2025-38568
published 2025-08-19

CVE-2025-38568: In the Linux kernel, the following vulnerability has been resolved: net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing…

PriorityP341high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.15%
5.0th percentile
In the Linux kernel, the following vulnerability has been resolved: net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing TCA_MQPRIO_TC_ENTRY_INDEX is validated using NLA_POLICY_MAX(NLA_U32, TC_QOPT_MAX_QUEUE), which allows the value TC_QOPT_MAX_QUEUE (16). This leads to a 4-byte out-of-bounds stack write in the fp[] array, which only has room for 16 elements (0–15). Fix this by changing the policy to allow only up to TC_QOPT_MAX_QUEUE - 1.

Affected

25 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.16.3-1 (forky)linux 6.16.3-1 (forky)
linuxlinux
linuxlinux>= f62af20bed2d9e824f51cfc97ff01bc261f40e58 < 39491e859fd494d0b51adc5c7d54c8a7dcf1d19839491e859fd494d0b51adc5c7d54c8a7dcf1d198
linuxlinux>= f62af20bed2d9e824f51cfc97ff01bc261f40e58 < d00e4125680f7074c4f42ce3c297336f23128e70d00e4125680f7074c4f42ce3c297336f23128e70
linuxlinux>= f62af20bed2d9e824f51cfc97ff01bc261f40e58 < 66fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd8666fc2ebdd9d5dd6e5a9c7edeace5a61a0ab2cd86
linuxlinux>= f62af20bed2d9e824f51cfc97ff01bc261f40e58 < f1a9dbcb7d17bf0abb325cdc984957cfabc59693f1a9dbcb7d17bf0abb325cdc984957cfabc59693
linuxlinux>= f62af20bed2d9e824f51cfc97ff01bc261f40e58 < ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17ffd2dc4c6c49ff4f1e5d34e454a6a55608104c17
linuxlinux_kernel>= 0 < 6.12.43-16.12.43-1
linuxlinux_kernel>= 0 < 6.16.3-16.16.3-1
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 6.13 < 6.15.106.15.10
linuxlinux_kernel>= 6.16 < 6.16.16.16.1
linuxlinux_kernel>= 6.4 < 6.6.1026.6.102
linuxlinux_kernel>= 6.7 < 6.12.426.12.42
msrcazl3_kernel_6.6.96.2-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.96.2-2_on_azure_linux_3.0
ubuntulinux-aws
ubuntulinux-aws-6.8
ubuntulinux-gkeop
ubuntulinux-nvidia
ubuntulinux-nvidia-6.8
ubuntulinux-oracle
ubuntulinux-oracle-6.8
ubuntulinux-raspi-realtime
ubuntulinux-realtime

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8LOW
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu3.2LOW
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