cve-2024-35790
Vulnerability from cvelistv5
Published
2024-05-17 12:24
Modified
2024-12-19 08:55
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group The DisplayPort driver's sysfs nodes may be present to the userspace before typec_altmode_set_drvdata() completes in dp_altmode_probe. This means that a sysfs read can trigger a NULL pointer error by deferencing dp->hpd in hpd_show or dp->lock in pin_assignment_show, as dev_get_drvdata() returns NULL in those cases. Remove manual sysfs node creation in favor of adding attribute group as default for devices bound to the driver. The ATTRIBUTE_GROUPS() macro is not used here otherwise the path to the sysfs nodes is no longer compliant with the ABI.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ad011776c057ce881b7fd6d8c79ecd459c087e9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/165376f6b23e9a779850e750fb2eb06622e5a531
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4a22aeac24d0d5f26ba741408e8b5a4be6dc5dc0
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0ad011776c057ce881b7fd6d8c79ecd459c087e9
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/165376f6b23e9a779850e750fb2eb06622e5a531
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4a22aeac24d0d5f26ba741408e8b5a4be6dc5dc0
Impacted products
Vendor Product Version
Linux Linux Version: 4.19
Show details on NVD website

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