cbcvebase.
CVE-2025-21685
published 2025-02-09

CVE-2025-21685: In the Linux kernel, the following vulnerability has been resolved: platform/x86: lenovo-yoga-tab2-pro-1380-fastcharger: fix serdev race The…

PriorityP417medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.19%
9.5th percentile
In the Linux kernel, the following vulnerability has been resolved: platform/x86: lenovo-yoga-tab2-pro-1380-fastcharger: fix serdev race The yt2_1380_fc_serdev_probe() function calls devm_serdev_device_open() before setting the client ops via serdev_device_set_client_ops(). This ordering can trigger a NULL pointer dereference in the serdev controller's receive_buf handler, as it assumes serdev->ops is valid when SERPORT_ACTIVE is set. This is similar to the issue fixed in commit 5e700b384ec1 ("platform/chrome: cros_ec_uart: properly fix race condition") where devm_serdev_device_open() was called before fully initializing the device. Fix the race by ensuring client ops are set before enabling the port via devm_serdev_device_open(). Note, serdev_device_set_baudrate() and serdev_device_set_flow_control() calls should be after the devm_serdev_device_open() call.

Affected

8 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.12.11-1 (forky)linux 6.12.11-1 (forky)
linuxlinux
linuxlinux>= b2ed33e8d486ab2f1920131dd76fab38c8ef3550 < 3f67e07873df3c6d9ce2582260b83732e1d3a40b3f67e07873df3c6d9ce2582260b83732e1d3a40b
linuxlinux>= b2ed33e8d486ab2f1920131dd76fab38c8ef3550 < 59616a91e5e74833b2008b56c66879857c61600659616a91e5e74833b2008b56c66879857c616006
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.12.11-16.12.11-1
linuxlinux_kernel>= 0 < 6.12.11-16.12.11-1
linuxlinux_kernel>= 6.10 < 6.12.116.12.11

CVSS provenance

nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_ubuntu5.5MEDIUM
vendor_debian4.7LOW
vendor_redhat4.7MEDIUM
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