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 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2024-11-05

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/0d4c0d2844e4eac3aed647f948fd7e60eea56a61
• https://git.kernel.org/stable/c/2240f9376f20f8b6463232b4ca7292569217237f
• https://git.kernel.org/stable/c/2f868ce6013548a713c431c679ef73747a66fcf3
• https://git.kernel.org/stable/c/8a283a19026aaae8a773fd8061263cfa315b127f
• https://git.kernel.org/stable/c/999612996df28d81f163dad530d7f8026e03aec6

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