CVE-2026-90404 PUBLISHED

platform/chrome: cros_ec_debugfs: Unregister panic notifier

Assigner: Linux
Reserved: 11.09.2026 Published: 17.09.2026 Updated: 17.09.2026

In the Linux kernel, the following vulnerability has been resolved:

platform/chrome: cros_ec_debugfs: Unregister panic notifier

cros_ec_debugfs_probe() registers notifier_panic with the EC panic notifier chain. The remove path tears down debugfs and the console log, but leaves the notifier registered. A later panic notification can call back into the removed instance and queue work that accesses released data.

Unregister the panic notifier before tearing down the debugfs and console log state.

This issue was found by a static analysis tool.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from d90fa2c64d59f5f151beeef5dbc599784b3391ca to 56989e2a9c292ff7689603feed41d030301ca636 (excl.)
  • affected from d90fa2c64d59f5f151beeef5dbc599784b3391ca to a5d3128b06ccfc398c2e456fddebadce52310bd8 (excl.)
  • affected from d90fa2c64d59f5f151beeef5dbc599784b3391ca to e2cbe14361d7cb0b5abd66d87f3afa0e16efde9f (excl.)
  • affected from d90fa2c64d59f5f151beeef5dbc599784b3391ca to 05c1081ae4503e45b934b390350f942db3208892 (excl.)
  • affected from d90fa2c64d59f5f151beeef5dbc599784b3391ca to e5954d3031fb55dd31aa59bae477d63c68e941c0 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.3 is affected
  • unaffected from 0 to 6.3 (excl.)
  • unaffected from 6.6.157 to 6.6.* (incl.)
  • unaffected from 6.12.110 to 6.12.* (incl.)
  • unaffected from 6.18.52 to 6.18.* (incl.)
  • unaffected from 7.2.6 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References