CVE-2025-38665

{"id": "CVE-2025-38665", "cveTags": [], "metrics": {}, "published": "2025-08-22T16:15:41.860", "references": [{"url": "https://git.kernel.org/stable/c/0ca816a96fdcf32644c80cbe7a82c7b6ce6ddda5", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6acceb46180f9e160d4f0c56fcaf39ba562822ae", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6bbcf37c5114926c99a1d1e6993a5b35689d2599", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c1f3f9797c1f44a762e6f5f72520b2e520537b52", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cf81a60a973358dea163f6b14062f17831ceb894", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode\n\nAndrei Lalaev reported a NULL pointer deref when a CAN device is\nrestarted from Bus Off and the driver does not implement the struct\ncan_priv::do_set_mode callback.\n\nThere are 2 code path that call struct can_priv::do_set_mode:\n- directly by a manual restart from the user space, via\n can_changelink()\n- delayed automatic restart after bus off (deactivated by default)\n\nTo prevent the NULL pointer deference, refuse a manual restart or\nconfigure the automatic restart delay in can_changelink() and report\nthe error via extack to user space.\n\nAs an additional safety measure let can_restart() return an error if\ncan_priv::do_set_mode is not set instead of dereferencing it\nunchecked."}], "lastModified": "2025-08-22T18:08:51.663", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}