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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-48876

stackdepot: fix stack_depot_save_flags() in NMI context

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 4434a56ec20925333d6cf4d4093641d063abd35b to < 9bfeeeff2c92b9dd261198b601b45bde4c529841affected
  • 4434a56ec20925333d6cf4d4093641d063abd35b to < 031e04bdc834cda3b054ef6b698503b2b97e8186affected

Linux Linux

Default version status: affected

  • 6.8affected
  • 0 to < 6.8unaffected
  • 6.12.5 to ≤ 6.12.*unaffected
  • 6.13 to ≤ *unaffected

References