CVE-2024-46689
Qualcomm soc Linux Whe[n Good ] Cache Eviction Integer
Description
In the Linux kernel, the following vulnerability has been resolved: soc: qcom: cmd-db: Map shared memory as WC, not WB Linux does not write into cmd-db region. This region of memory is write protected by XPU. XPU may sometime falsely detect clean cache eviction as "write" into the write protected region leading to secure interrupt which causes an endless loop somewhere in Trust Zone. The only reason it is working right now is because Qualcomm Hypervisor maps the same region as Non-Cacheable memory in Stage 2 translation tables. The issue manifests if we want to use another hypervisor (like Xen or KVM), which does not know anything about those specific mappings. Changing the mapping of cmd-db memory from MEMREMAP_WB to MEMREMAP_WT/WC removes dependency on correct mappings in Stage 2 tables. This patch fixes the issue by updating the mapping to MEMREMAP_WC. I tested this on SA8155P with Xen.
INFO
Published Date :
Sept. 13, 2024, 6:15 a.m.
Last Modified :
Sept. 20, 2024, 3:52 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2024-46689.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2024-46689 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-46689 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Sep. 20, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/0ee9594c974368a17e85a431e9fe1c14fb65c278 No Types Assigned https://git.kernel.org/stable/c/0ee9594c974368a17e85a431e9fe1c14fb65c278 Patch Changed Reference Type https://git.kernel.org/stable/c/62c2d63605ca25b5db78a347ed303c0a0a77d5b4 No Types Assigned https://git.kernel.org/stable/c/62c2d63605ca25b5db78a347ed303c0a0a77d5b4 Patch Changed Reference Type https://git.kernel.org/stable/c/d9d48d70e922b272875cda60d2ada89291c840cf No Types Assigned https://git.kernel.org/stable/c/d9d48d70e922b272875cda60d2ada89291c840cf Patch Changed Reference Type https://git.kernel.org/stable/c/eaff392c1e34fb77cc61505a31b0191e5e46e271 No Types Assigned https://git.kernel.org/stable/c/eaff392c1e34fb77cc61505a31b0191e5e46e271 Patch Changed Reference Type https://git.kernel.org/stable/c/ef80520be0ff78ae5ed44cb6eee1525e65bebe70 No Types Assigned https://git.kernel.org/stable/c/ef80520be0ff78ae5ed44cb6eee1525e65bebe70 Patch Changed Reference Type https://git.kernel.org/stable/c/f5a5a5a0e95f36e2792d48e6e4b64e665eb01374 No Types Assigned https://git.kernel.org/stable/c/f5a5a5a0e95f36e2792d48e6e4b64e665eb01374 Patch Changed Reference Type https://git.kernel.org/stable/c/f9bb896eab221618927ae6a2f1d566567999839d No Types Assigned https://git.kernel.org/stable/c/f9bb896eab221618927ae6a2f1d566567999839d Patch Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.18 up to (excluding) 5.4.283 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.225 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.166 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.108 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.49 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.10.8 *cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:* -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 13, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: soc: qcom: cmd-db: Map shared memory as WC, not WB Linux does not write into cmd-db region. This region of memory is write protected by XPU. XPU may sometime falsely detect clean cache eviction as "write" into the write protected region leading to secure interrupt which causes an endless loop somewhere in Trust Zone. The only reason it is working right now is because Qualcomm Hypervisor maps the same region as Non-Cacheable memory in Stage 2 translation tables. The issue manifests if we want to use another hypervisor (like Xen or KVM), which does not know anything about those specific mappings. Changing the mapping of cmd-db memory from MEMREMAP_WB to MEMREMAP_WT/WC removes dependency on correct mappings in Stage 2 tables. This patch fixes the issue by updating the mapping to MEMREMAP_WC. I tested this on SA8155P with Xen. Added Reference kernel.org https://git.kernel.org/stable/c/0ee9594c974368a17e85a431e9fe1c14fb65c278 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f5a5a5a0e95f36e2792d48e6e4b64e665eb01374 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/eaff392c1e34fb77cc61505a31b0191e5e46e271 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d9d48d70e922b272875cda60d2ada89291c840cf [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ef80520be0ff78ae5ed44cb6eee1525e65bebe70 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/62c2d63605ca25b5db78a347ed303c0a0a77d5b4 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f9bb896eab221618927ae6a2f1d566567999839d [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-46689 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-46689
weaknesses.