CVE-2024-50127

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix use-after-free in taprio_change() In 'taprio_change()', 'admin' pointer may become dangling due to sched switch / removal caused by 'advance_sched()', and critical section protected by 'q->current_entry_lock' is too small to prevent from such a scenario (which causes use-after-free detected by KASAN). Fix this by prefer 'rcu_replace_pointer()' over 'rcu_assign_pointer()' to update 'admin' immediately before an attempt to schedule freeing.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0d4c0d2844e4eac3aed647f948fd7e60eea56a61	Patch
https://git.kernel.org/stable/c/2240f9376f20f8b6463232b4ca7292569217237f	Patch
https://git.kernel.org/stable/c/2f868ce6013548a713c431c679ef73747a66fcf3	Patch
https://git.kernel.org/stable/c/8a283a19026aaae8a773fd8061263cfa315b127f	Patch
https://git.kernel.org/stable/c/999612996df28d81f163dad530d7f8026e03aec6	Patch
https://git.kernel.org/stable/c/f504465970aebb2467da548f7c1efbbf36d0f44b	Patch
https://git.kernel.org/stable/c/fe371f084073e8672a2d7d46b335c3c060d1e301	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.12:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.12:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.12:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.12:rc4::::::

History

No history.

Information

Published : 2024-11-05 18:15

Updated : 2024-12-11 15:15

NVD link : CVE-2024-50127

Mitre link : CVE-2024-50127

CVE.ORG link : CVE-2024-50127

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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