CVE Watch14 sept 2026

CVE-2024-35887

In the Linux kernel, the following vulnerability has been resolved: ax25: fix use-after-free bugs caused by ax25_ds_del_timer When the ax2

CVSS

8.8

Alto

EPSS

0.3%

p27

KEV

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Exploit Today

0-100

Publicado: 19 may 2024 · Última mod.: 14 sept 2026 · CWE-416

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-08-182026-09-14

Descripción técnica

In the Linux kernel, the following vulnerability has been resolved: ax25: fix use-after-free bugs caused by ax25_ds_del_timer When the ax25 device is detaching, the ax25_dev_device_down() calls ax25_ds_del_timer() to cleanup the slave_timer. When the timer handler is running, the ax25_ds_del_timer() that calls del_timer() in it will return directly. As a result, the use-after-free bugs could happen, one of the scenarios is shown below: (Thread 1) | (Thread 2) | ax25_ds_timeout() ax25_dev_device_down() | ax25_ds_del_timer() | del_timer() | ax25_dev_put() //FREE | | ax25_dev-> //USE In order to mitigate bugs, when the device is detaching, use timer_shutdown_sync() to stop the timer.

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