CVE-2024-46832
MIPS: cevt-r4k: Don't call get_c0_compare_int if timer irq is installed
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Description
In the Linux kernel, the following vulnerability has been resolved: MIPS: cevt-r4k: Don't call get_c0_compare_int if timer irq is installed This avoids warning: [ 0.118053] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:283 Caused by get_c0_compare_int on secondary CPU. We also skipped saving IRQ number to struct clock_event_device *cd as it's never used by clockevent core, as per comments it's only meant for "non CPU local devices".
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/189d3ed3b25beee26ffe2abed278208bece13f52
- https://git.kernel.org/stable/c/32ee0520159f1e8c2d6597c19690df452c528f30
- https://git.kernel.org/stable/c/50f2b98dc83de7809a5c5bf0ccf9af2e75c37c13
- https://git.kernel.org/stable/c/b1d2051373bfc65371ce4ac8911ed984d0178c98
- https://git.kernel.org/stable/c/d3ff0f98a52f0aafe35aa314d1c442f4318be3db
References (7)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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