CVE-2025-38665None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode Andrei Lalaev reported a NULL pointer deref when a CAN device is restarted from …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode
Andrei Lalaev reported a NULL pointer deref when a CAN device is restarted from Bus Off and the driver does not implement the struct can_priv::do_set_mode callback.
There are 2 code path that call struct can_priv::do_set_mode:
To prevent the NULL pointer deference, refuse a manual restart or configure the automatic restart delay in can_changelink() and report the error via extack to user space.
As an additional safety measure let can_restart() return an error if can_priv::do_set_mode is not set instead of dereferencing it unchecked.
Linux >= 39549eef3587f1c1e8c65c88a2400d10fd30ea17 < 6bbcf37c5114926c99a1d1e6993a5b35689d2599Linux >= 39549eef3587f1c1e8c65c88a2400d10fd30ea17 < cf81a60a973358dea163f6b14062f17831ceb894Linux >= 39549eef3587f1c1e8c65c88a2400d10fd30ea17 < 0ca816a96fdcf32644c80cbe7a82c7b6ce6ddda5Linux >= 39549eef3587f1c1e8c65c88a2400d10fd30ea17 < 6acceb46180f9e160d4f0c56fcaf39ba562822aeLinux >= 39549eef3587f1c1e8c65c88a2400d10fd30ea17 < c1f3f9797c1f44a762e6f5f72520b2e520537b52Linux 2.6.31Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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