bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()
task_pt_regs() can return NULL on powerpc for kernel threads. This is
then used in __bpf_get_stack() to check for user mode, resulting in a
kernel oops. Guard against this by checking return value of
task_pt_regs() before trying to obtain the call chain.
Metrics
Affected Vendors & Products
Mon, 06 Jan 2025 22:00:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Linux
Linux linux Kernel |
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Weaknesses | CWE-476 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* |
|
Vendors & Products |
Linux
Linux linux Kernel |
|
Metrics |
cvssV3_1
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cvssV3_1
|
Thu, 19 Dec 2024 09:15:00 +0000
Type | Values Removed | Values Added |
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Metrics |
ssvc
|
Thu, 12 Sep 2024 08:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
Wed, 11 Sep 2024 13:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|

Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-05-04T08:22:42.887Z
Reserved: 2024-06-20T11:09:39.061Z
Link: CVE-2022-48770

Updated: 2024-08-03T15:25:01.559Z

Status : Analyzed
Published: 2024-06-20T12:15:14.953
Modified: 2025-01-06T21:43:45.823
Link: CVE-2022-48770


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