Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 before 6b989ea1c479533ab8dbfbeb1704c94b1d3320da; affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 before 9794ffd9d0c39ee070fbd733f862bbe89b28ba33; affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 before f1c5ddaef506e3517dce338c08a60663b1521920; affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 before 4a22aeac24d0d5f26ba741408e8b5a4be6dc5dc0; affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 before 0ad011776c057ce881b7fd6d8c79ecd459c087e9; affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 before 165376f6b23e9a779850e750fb2eb06622e5a531 |
| Linux / Linux | affected 4.19; unaffected 0 before 4.19; unaffected 5.10.238 through 5.10.*; unaffected 5.15.184 through 5.15.*; unaffected 6.1.140 through 6.1.*; unaffected 6.6.24 through 6.6.*; unaffected 6.7.12 through 6.7.*; unaffected 6.8 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/6b989ea1c479533ab8dbfbeb1704c94b1d3320da
- https://git.kernel.org/stable/c/9794ffd9d0c39ee070fbd733f862bbe89b28ba33
- https://git.kernel.org/stable/c/f1c5ddaef506e3517dce338c08a60663b1521920
- https://git.kernel.org/stable/c/4a22aeac24d0d5f26ba741408e8b5a4be6dc5dc0
- https://git.kernel.org/stable/c/0ad011776c057ce881b7fd6d8c79ecd459c087e9
- https://git.kernel.org/stable/c/165376f6b23e9a779850e750fb2eb06622e5a531
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/4a22aeac24d0d5f26ba741408e8b5a4be6dc5dc0
- https://git.kernel.org/stable/c/0ad011776c057ce881b7fd6d8c79ecd459c087e9
- https://git.kernel.org/stable/c/165376f6b23e9a779850e750fb2eb06622e5a531
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html