CVE-2025-38295— perf/amlogic: Replace smp_processor_id() with raw_smp_processor_id() in meson_ddr_pmu_create()
Quick assessment
Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在可抢占上下文中使用smp_processor_id，可能导致内核警告。
Affected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2016e2113d35ba06866961a39e9a9c822f2ffabd< 77511c2d2d1cbce8d9b4f50849843dd469d14173 |
affected |
2016e2113d35ba06866961a39e9a9c822f2ffabd< b038ffbd49e41f99228dbb0c66d6dd7b20292884 |
affected | ||
2016e2113d35ba06866961a39e9a9c822f2ffabd< 6f5f53048d3b761d694430632d3a03977273e987 |
affected | ||
2016e2113d35ba06866961a39e9a9c822f2ffabd< 097469a2b0f12b91b4f27b9e9e4f2c46484cde30 |
affected | ||
6.2 |
affected | ||
< 6.2 |
unaffected | ||
6.6.94≤ 6.6.* |
unaffected | ||
6.12.34≤ 6.12.* |
unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2025-38295
Vulnerability Information
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Vulnerability Title
perf/amlogic: Replace smp_processor_id() with raw_smp_processor_id() in meson_ddr_pmu_create()
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在可抢占上下文中使用smp_processor_id，可能导致内核警告。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-38295
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-07-10 · 84 CVEs total
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| CVE-2025-38290 | 8.8 HIGH | wifi: ath12k: fix node corruption in ar->arvifs list |
| CVE-2025-38291 | 8.8 HIGH | wifi: ath12k: Prevent sending WMI commands to firmware during firmware crash |
| CVE-2025-38293 | 8.8 HIGH | wifi: ath11k: fix node corruption in ar->arvifs list |
| CVE-2025-38292 | 8.8 HIGH | wifi: ath12k: fix invalid access to memory |
| CVE-2025-38343 | 8.3 HIGH | wifi: mt76: mt7996: drop fragments with multicast or broadcast RA |
| CVE-2025-38333 | 7.8 HIGH | f2fs: fix to bail out in get_new_segment() |
| CVE-2025-38273 | 7.8 HIGH | net: tipc: fix refcount warning in tipc_aead_encrypt |
| CVE-2025-38346 | 7.8 HIGH | ftrace: Fix UAF when lookup kallsym after ftrace disabled |
| CVE-2025-38276 | 7.8 HIGH | fs/dax: Fix "don't skip locked entries when scanning entries" |
| CVE-2025-38303 | 7.8 HIGH | Bluetooth: eir: Fix possible crashes on eir_create_adv_data |
| CVE-2025-38270 | 7.8 HIGH | net: drv: netdevsim: don't napi_complete() from netpoll |
| CVE-2025-38321 | 7.8 HIGH | smb: Log an error when close_all_cached_dirs fails |
| CVE-2025-38306 | 7.8 HIGH | fs/fhandle.c: fix a race in call of has_locked_children() |
| CVE-2025-38341 | 7.8 HIGH | eth: fbnic: avoid double free when failing to DMA-map FW msg |
| CVE-2025-38339 | 7.8 HIGH | powerpc/bpf: fix JIT code size calculation of bpf trampoline |
| CVE-2025-38278 | 7.8 HIGH | octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback |
| CVE-2025-38317 | 7.8 HIGH | wifi: ath12k: Fix buffer overflow in debugfs |
| CVE-2025-38287 | 7.5 HIGH | IB/cm: Drop lockdep assert and WARN when freeing old msg |
Showing top 20 of 84 CVEs. View all on vendor page → →
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V. Comments for CVE-2025-38295
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