CVE-2024-50127

Advisory lineage Upstream: 0 Downstream: 92
Modified
Published: 05 Nov 2024, 17:10
Last modified:12 May 2026, 12:00

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (cve.org)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

05 Nov 2024, 17:10
Published
Vulnerability first disclosed
12 May 2026, 12:00
Last Modified
Vulnerability information updated

Description

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 Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 6%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • linux•linux

    ≥ a3d43c0d56f1b94e74963a2fbadfb70126d92213, < 2f868ce6013548a713c431c679ef73747a66fcf3 | ≥ a3d43c0d56f1b94e74963a2fbadfb70126d92213, < 8a283a19026aaae8a773fd8061263cfa315b127f | ≥ a3d43c0d56f1b94e74963a2fbadfb70126d92213, < 999612996df28d81f163dad530d7f8026e03aec6 | ≥ a3d43c0d56f1b94e74963a2fbadfb70126d92213, < fe371f084073e8672a2d7d46b335c3c060d1e301 | ≥ a3d43c0d56f1b94e74963a2fbadfb70126d92213, < 0d4c0d2844e4eac3aed647f948fd7e60eea56a61 | ≥ a3d43c0d56f1b94e74963a2fbadfb70126d92213, < 2240f9376f20f8b6463232b4ca7292569217237f | ≥ a3d43c0d56f1b94e74963a2fbadfb70126d92213, < f504465970aebb2467da548f7c1efbbf36d0f44b | 5.2

  • linux•linux_kernel

    ≥ 5.2, < 5.15.170 | ≥ 5.16, < 6.1.115 | ≥ 6.2, < 6.6.59 | ≥ 6.7, < 6.11.6 | 6.12:rc1 | 6.12:rc2 | 6.12:rc3 | 6.12:rc4

References (10)