CVE-2024-36887

Published: June 4, 2024Last modified: June 4, 2024

Description

In the Linux kernel, the following vulnerability has been resolved: e1000e: change usleep_range to udelay in PHY mdic access This is a partial revert of commit 6dbdd4de0362 ("e1000e: Workaround for sporadic MDI error on Meteor Lake systems"). The referenced commit used usleep_range inside the PHY access routines, which are sometimes called from an atomic context. This can lead to a kernel panic in some scenarios, such as cable disconnection and reconnection on vPro systems. Solve this by changing the usleep_range calls back to udelay.

Status

References

• https://git.kernel.org/stable/c/387f295cb2150ed164905b648d76dfcbd3621778
• https://git.kernel.org/stable/c/950d5226cd6bb83ba720961a8d4d5cf79e6afd57
• https://git.kernel.org/stable/c/f8a139656c95db893a543159873c57a470d7376d