CVE-2022-50096
x86/kprobes: Update kcb status flag after singlestepping
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Description
In the Linux kernel, the following vulnerability has been resolved: x86/kprobes: Update kcb status flag after singlestepping Fix kprobes to update kcb (kprobes control block) status flag to KPROBE_HIT_SSDONE even if the kp->post_handler is not set. This bug may cause a kernel panic if another INT3 user runs right after kprobes because kprobe_int3_handler() misunderstands the INT3 is kprobe's single stepping INT3.
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/1cbf3882cb372bbe752efd7c3045ca1c9ab40ac6
- https://git.kernel.org/stable/c/663cdda2716b70751df9c7e60b81bd0850fdfe3c
- https://git.kernel.org/stable/c/b9c3401f7cac6ae291a16784dadcd1bf116218fe
- https://git.kernel.org/stable/c/dec8784c9088b131a1523f582c2194cfc8107dc0
- https://git.kernel.org/stable/c/edc2ac7c7265b33660fa0190898966b49966b855
References (5)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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