Riskcovery

CVE-2024-48876

stackdepot: fix stack_depot_save_flags() in NMI context

State
Published
Severity
Not scored
Published
Jan 11, 2025
Updated
May 11, 2026
Reserved
Jan 9, 2025

Read the record on cve.org

Description

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

stackdepot: fix stack_depot_save_flags() in NMI context

Per documentation, stack_depot_save_flags() was meant to be usable from NMI context if STACK_DEPOT_FLAG_CAN_ALLOC is unset. However, it still would try to take the pool_lock in an attempt to save a stack trace in the current pool (if space is available).

This could result in deadlock if an NMI is handled while pool_lock is already held. To avoid deadlock, only try to take the lock in NMI context and give up if unsuccessful.

The documentation is fixed to clearly convey this.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 4434a56ec20925333d6cf4d4093641d063abd35b to before 9bfeeeff2c92b9dd261198b601b45bde4c529841Affected
  • 4434a56ec20925333d6cf4d4093641d063abd35b to before 031e04bdc834cda3b054ef6b698503b2b97e8186Affected
LinuxLinux
  • 6.8Affected
  • before 6.8Not affected
  • 6.12.5 through 6.12.*Not affected
  • 6.13 and laterNot affected

References

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