CVE-2025-38295
Amlogic Linux Kernel Perf Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: perf/amlogic: Replace smp_processor_id() with raw_smp_processor_id() in meson_ddr_pmu_create() The Amlogic DDR PMU driver meson_ddr_pmu_create() function incorrectly uses smp_processor_id(), which assumes disabled preemption. This leads to kernel warnings during module loading because meson_ddr_pmu_create() can be called in a preemptible context. Following kernel warning and stack trace: [ 31.745138] [ T2289] BUG: using smp_processor_id() in preemptible [00000000] code: (udev-worker)/2289 [ 31.745154] [ T2289] caller is debug_smp_processor_id+0x28/0x38 [ 31.745172] [ T2289] CPU: 4 UID: 0 PID: 2289 Comm: (udev-worker) Tainted: GW 6.14.0-0-MANJARO-ARM #1 59519addcbca6ba8de735e151fd7b9e97aac7ff0 [ 31.745181] [ T2289] Tainted: [W]=WARN [ 31.745183] [ T2289] Hardware name: Hardkernel ODROID-N2Plus (DT) [ 31.745188] [ T2289] Call trace: [ 31.745191] [ T2289] show_stack+0x28/0x40 (C) [ 31.745199] [ T2289] dump_stack_lvl+0x4c/0x198 [ 31.745205] [ T2289] dump_stack+0x20/0x50 [ 31.745209] [ T2289] check_preemption_disabled+0xec/0xf0 [ 31.745213] [ T2289] debug_smp_processor_id+0x28/0x38 [ 31.745216] [ T2289] meson_ddr_pmu_create+0x200/0x560 [meson_ddr_pmu_g12 8095101c49676ad138d9961e3eddaee10acca7bd] [ 31.745237] [ T2289] g12_ddr_pmu_probe+0x20/0x38 [meson_ddr_pmu_g12 8095101c49676ad138d9961e3eddaee10acca7bd] [ 31.745246] [ T2289] platform_probe+0x98/0xe0 [ 31.745254] [ T2289] really_probe+0x144/0x3f8 [ 31.745258] [ T2289] __driver_probe_device+0xb8/0x180 [ 31.745261] [ T2289] driver_probe_device+0x54/0x268 [ 31.745264] [ T2289] __driver_attach+0x11c/0x288 [ 31.745267] [ T2289] bus_for_each_dev+0xfc/0x160 [ 31.745274] [ T2289] driver_attach+0x34/0x50 [ 31.745277] [ T2289] bus_add_driver+0x160/0x2b0 [ 31.745281] [ T2289] driver_register+0x78/0x120 [ 31.745285] [ T2289] __platform_driver_register+0x30/0x48 [ 31.745288] [ T2289] init_module+0x30/0xfe0 [meson_ddr_pmu_g12 8095101c49676ad138d9961e3eddaee10acca7bd] [ 31.745298] [ T2289] do_one_initcall+0x11c/0x438 [ 31.745303] [ T2289] do_init_module+0x68/0x228 [ 31.745311] [ T2289] load_module+0x118c/0x13a8 [ 31.745315] [ T2289] __arm64_sys_finit_module+0x274/0x390 [ 31.745320] [ T2289] invoke_syscall+0x74/0x108 [ 31.745326] [ T2289] el0_svc_common+0x90/0xf8 [ 31.745330] [ T2289] do_el0_svc+0x2c/0x48 [ 31.745333] [ T2289] el0_svc+0x60/0x150 [ 31.745337] [ T2289] el0t_64_sync_handler+0x80/0x118 [ 31.745341] [ T2289] el0t_64_sync+0x1b8/0x1c0 Changes replaces smp_processor_id() with raw_smp_processor_id() to ensure safe CPU ID retrieval in preemptible contexts.
INFO
Published Date :
July 10, 2025, 8:15 a.m.
Last Modified :
July 10, 2025, 1:17 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2025-38295.
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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CVE-2025-38295 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-38295 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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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 10, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: perf/amlogic: Replace smp_processor_id() with raw_smp_processor_id() in meson_ddr_pmu_create() The Amlogic DDR PMU driver meson_ddr_pmu_create() function incorrectly uses smp_processor_id(), which assumes disabled preemption. This leads to kernel warnings during module loading because meson_ddr_pmu_create() can be called in a preemptible context. Following kernel warning and stack trace: [ 31.745138] [ T2289] BUG: using smp_processor_id() in preemptible [00000000] code: (udev-worker)/2289 [ 31.745154] [ T2289] caller is debug_smp_processor_id+0x28/0x38 [ 31.745172] [ T2289] CPU: 4 UID: 0 PID: 2289 Comm: (udev-worker) Tainted: GW 6.14.0-0-MANJARO-ARM #1 59519addcbca6ba8de735e151fd7b9e97aac7ff0 [ 31.745181] [ T2289] Tainted: [W]=WARN [ 31.745183] [ T2289] Hardware name: Hardkernel ODROID-N2Plus (DT) [ 31.745188] [ T2289] Call trace: [ 31.745191] [ T2289] show_stack+0x28/0x40 (C) [ 31.745199] [ T2289] dump_stack_lvl+0x4c/0x198 [ 31.745205] [ T2289] dump_stack+0x20/0x50 [ 31.745209] [ T2289] check_preemption_disabled+0xec/0xf0 [ 31.745213] [ T2289] debug_smp_processor_id+0x28/0x38 [ 31.745216] [ T2289] meson_ddr_pmu_create+0x200/0x560 [meson_ddr_pmu_g12 8095101c49676ad138d9961e3eddaee10acca7bd] [ 31.745237] [ T2289] g12_ddr_pmu_probe+0x20/0x38 [meson_ddr_pmu_g12 8095101c49676ad138d9961e3eddaee10acca7bd] [ 31.745246] [ T2289] platform_probe+0x98/0xe0 [ 31.745254] [ T2289] really_probe+0x144/0x3f8 [ 31.745258] [ T2289] __driver_probe_device+0xb8/0x180 [ 31.745261] [ T2289] driver_probe_device+0x54/0x268 [ 31.745264] [ T2289] __driver_attach+0x11c/0x288 [ 31.745267] [ T2289] bus_for_each_dev+0xfc/0x160 [ 31.745274] [ T2289] driver_attach+0x34/0x50 [ 31.745277] [ T2289] bus_add_driver+0x160/0x2b0 [ 31.745281] [ T2289] driver_register+0x78/0x120 [ 31.745285] [ T2289] __platform_driver_register+0x30/0x48 [ 31.745288] [ T2289] init_module+0x30/0xfe0 [meson_ddr_pmu_g12 8095101c49676ad138d9961e3eddaee10acca7bd] [ 31.745298] [ T2289] do_one_initcall+0x11c/0x438 [ 31.745303] [ T2289] do_init_module+0x68/0x228 [ 31.745311] [ T2289] load_module+0x118c/0x13a8 [ 31.745315] [ T2289] __arm64_sys_finit_module+0x274/0x390 [ 31.745320] [ T2289] invoke_syscall+0x74/0x108 [ 31.745326] [ T2289] el0_svc_common+0x90/0xf8 [ 31.745330] [ T2289] do_el0_svc+0x2c/0x48 [ 31.745333] [ T2289] el0_svc+0x60/0x150 [ 31.745337] [ T2289] el0t_64_sync_handler+0x80/0x118 [ 31.745341] [ T2289] el0t_64_sync+0x1b8/0x1c0 Changes replaces smp_processor_id() with raw_smp_processor_id() to ensure safe CPU ID retrieval in preemptible contexts. Added Reference https://git.kernel.org/stable/c/097469a2b0f12b91b4f27b9e9e4f2c46484cde30 Added Reference https://git.kernel.org/stable/c/6f5f53048d3b761d694430632d3a03977273e987 Added Reference https://git.kernel.org/stable/c/77511c2d2d1cbce8d9b4f50849843dd469d14173 Added Reference https://git.kernel.org/stable/c/b038ffbd49e41f99228dbb0c66d6dd7b20292884
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-38295 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-2025-38295
weaknesses.