CVE-2026-68152

CVE CVE-2026-68152EUVD EUVD-2026-55538Published 2026-08-10T11:59:18.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: amt: fix use-after-free in AMT delayed works When an AMT device is removed, pending delayed works can still access the freed amt_dev structure, which may result in kernel crashes or memory corruption. amt_dev_stop() cancels req_wq and discovery_wq with cancel_delayed_work_sync(), but these works can be scheduled again from event_wq after the cancellation. This allows delayed works to access the freed amt_dev structure after the netdev has been released. The following is a simple race scenario: CPU0 CPU1 amt_dev_stop() cancel_delayed_work_sync() amt_event_work() mod_delayed_work(req_wq) free netdev req_wq accesses freed amt_dev Use disable_delayed_work_sync() in amt_dev_stop() to prevent req_wq and discovery_wq from being queued again and wait for running work items to complete. The delayed works are disabled after initialization in amt_newlink() and enabled only when the device is successfully opened. This keeps the delayed work lifecycle synchronized with the lifetime of the AMT device.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 5.16; cbc21dc1cfe949e37b2a54c71511579f1899e8d4 <a46bfa01e01df0f6f6dc4b0be18db002d6d2dbd2; patch: 0; patch: 7.2-rc5; patch: 6.18.42; cbc21dc1cfe949e37b2a54c71511579f1899e8d4 <ea20c44935d6142daecfa9b39d635033a7553e1b; cbc21dc1cfe949e37b2a54c71511579f1899e8d4 <006340cf06881b6ff49767d8b6f3c4f7b892670c; cbc21dc1cfe949e37b2a54c71511579f1899e8d4 <1a644db2cf59f164cdf3c75995bab5aadc097528; patch: 6.12.101; patch: 7.1.6

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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