ghsa-24p2-xmcw-rpv8
Vulnerability from github
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.
{
"affected": [],
"aliases": [
"CVE-2025-38295"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-10T08:15:28Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/amlogic: Replace smp_processor_id() with raw_smp_processor_id() in meson_ddr_pmu_create()\n\nThe Amlogic DDR PMU driver meson_ddr_pmu_create() function incorrectly uses\nsmp_processor_id(), which assumes disabled preemption. This leads to kernel\nwarnings during module loading because meson_ddr_pmu_create() can be called\nin a preemptible context.\n\nFollowing kernel warning and stack trace:\n[ 31.745138] [ T2289] BUG: using smp_processor_id() in preemptible [00000000] code: (udev-worker)/2289\n[ 31.745154] [ T2289] caller is debug_smp_processor_id+0x28/0x38\n[ 31.745172] [ T2289] CPU: 4 UID: 0 PID: 2289 Comm: (udev-worker) Tainted: GW 6.14.0-0-MANJARO-ARM #1 59519addcbca6ba8de735e151fd7b9e97aac7ff0\n[ 31.745181] [ T2289] Tainted: [W]=WARN\n[ 31.745183] [ T2289] Hardware name: Hardkernel ODROID-N2Plus (DT)\n[ 31.745188] [ T2289] Call trace:\n[ 31.745191] [ T2289] show_stack+0x28/0x40 (C)\n[ 31.745199] [ T2289] dump_stack_lvl+0x4c/0x198\n[ 31.745205] [ T2289] dump_stack+0x20/0x50\n[ 31.745209] [ T2289] check_preemption_disabled+0xec/0xf0\n[ 31.745213] [ T2289] debug_smp_processor_id+0x28/0x38\n[ 31.745216] [ T2289] meson_ddr_pmu_create+0x200/0x560 [meson_ddr_pmu_g12 8095101c49676ad138d9961e3eddaee10acca7bd]\n[ 31.745237] [ T2289] g12_ddr_pmu_probe+0x20/0x38 [meson_ddr_pmu_g12 8095101c49676ad138d9961e3eddaee10acca7bd]\n[ 31.745246] [ T2289] platform_probe+0x98/0xe0\n[ 31.745254] [ T2289] really_probe+0x144/0x3f8\n[ 31.745258] [ T2289] __driver_probe_device+0xb8/0x180\n[ 31.745261] [ T2289] driver_probe_device+0x54/0x268\n[ 31.745264] [ T2289] __driver_attach+0x11c/0x288\n[ 31.745267] [ T2289] bus_for_each_dev+0xfc/0x160\n[ 31.745274] [ T2289] driver_attach+0x34/0x50\n[ 31.745277] [ T2289] bus_add_driver+0x160/0x2b0\n[ 31.745281] [ T2289] driver_register+0x78/0x120\n[ 31.745285] [ T2289] __platform_driver_register+0x30/0x48\n[ 31.745288] [ T2289] init_module+0x30/0xfe0 [meson_ddr_pmu_g12 8095101c49676ad138d9961e3eddaee10acca7bd]\n[ 31.745298] [ T2289] do_one_initcall+0x11c/0x438\n[ 31.745303] [ T2289] do_init_module+0x68/0x228\n[ 31.745311] [ T2289] load_module+0x118c/0x13a8\n[ 31.745315] [ T2289] __arm64_sys_finit_module+0x274/0x390\n[ 31.745320] [ T2289] invoke_syscall+0x74/0x108\n[ 31.745326] [ T2289] el0_svc_common+0x90/0xf8\n[ 31.745330] [ T2289] do_el0_svc+0x2c/0x48\n[ 31.745333] [ T2289] el0_svc+0x60/0x150\n[ 31.745337] [ T2289] el0t_64_sync_handler+0x80/0x118\n[ 31.745341] [ T2289] el0t_64_sync+0x1b8/0x1c0\n\nChanges replaces smp_processor_id() with raw_smp_processor_id() to\nensure safe CPU ID retrieval in preemptible contexts.",
"id": "GHSA-24p2-xmcw-rpv8",
"modified": "2025-07-10T09:32:30Z",
"published": "2025-07-10T09:32:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38295"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/097469a2b0f12b91b4f27b9e9e4f2c46484cde30"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6f5f53048d3b761d694430632d3a03977273e987"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/77511c2d2d1cbce8d9b4f50849843dd469d14173"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b038ffbd49e41f99228dbb0c66d6dd7b20292884"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
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