n the Linux kernel, the following vulnerability has been resolved: firmware: qcom: scm: Fix missing read barrier in qcom_scm_get_tzmem_pool() Commit 2e4955167ec5 ("firmware: qcom: scm: Fix __scm and waitq completion variable initialization") introduced a write barrier in probe function to store global '__scm' variable. We all known barriers are paired (see memory-barriers.txt: "Note that write barriers should normally be paired with read or address-dependency barriers"), therefore accessing it from concurrent contexts requires read barrier. Previous commit added such barrier in qcom_scm_is_available(), so let's use that directly. Lack of this read barrier can result in fetching stale '__scm' variable value, NULL, and dereferencing it. Note that barrier in qcom_scm_is_available() satisfies here the control dependency.
Configuration 1 (hide)
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24 Mar 2025, 18:30
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
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| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-476 | |
| References | () https://git.kernel.org/stable/c/b628510397b5cafa1f5d3e848a28affd1c635302 - Patch | |
| References | () https://git.kernel.org/stable/c/e03db7c1255ebabba5e1a447754faeb138de15a2 - Patch | |
| References | () https://git.kernel.org/stable/c/fee921e3c641f64185abee83f9a6e65f0b380682 - Patch |
06 Mar 2025, 17:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Published : 2025-03-06 17:15
Updated : 2025-10-01 20:18
NVD link : CVE-2024-58084
Mitre link : CVE-2024-58084
CVE.ORG link : CVE-2024-58084
JSON object : View
NULL Pointer Dereference