Answer in brief
CVE-2026-81015 records a High severity (CVSS 7.8) vulnerability in platform/x86/amd/pmc: Fix LPS0 and debugfs leaks when STB init fails. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=83ad6974dd3bf34c080b3c08d36d02ebc3bd6da8 <bc9aa5fe21c3966c80647ed6574b94b863f23c62 || >=83ad6974dd3bf34c080b3c08d36d02ebc3bd6da8 <30e5f4d0cd0be655c800f10ae3e530391aa6c1b5 || >=83ad6974dd3bf34c080b3c08d36d02ebc3bd6da8 <76f650a76d6a36a4bee79d94db90a0e935a95477 | bc9aa5fe21c3966c80647ed6574b94b863f23c62, 30e5f4d0cd0be655c800f10ae3e530391aa6c1b5, 76f650a76d6a36a4bee79d94db90a0e935a95477 |
| Linux/Linuxgeneric | >=49de59f69a76f538bfa5d0638a8c98d052546567 <d201c09c2428a4a8fd3bdcb032ae99f1e016458c || >=83ad6974dd3bf34c080b3c08d36d02ebc3bd6da8 <bc9aa5fe21c3966c80647ed6574b94b863f23c62 || >=83ad6974dd3bf34c080b3c08d36d02ebc3bd6da8 <30e5f4d0cd0be655c800f10ae3e530391aa6c1b5 || >=83ad6974dd3bf34c080b3c08d36d02ebc3bd6da8 <76f650a76d6a36a4bee79d94db90a0e935a95477 | d201c09c2428a4a8fd3bdcb032ae99f1e016458c, bc9aa5fe21c3966c80647ed6574b94b863f23c62, 30e5f4d0cd0be655c800f10ae3e530391aa6c1b5, 76f650a76d6a36a4bee79d94db90a0e935a95477 |
| Linux/Linuxgeneric | 6.14 | Not reported |
Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 11, 2026
In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/pmc: Fix LPS0 and debugfs leaks when STB init fails amd_pmc_probe() registers the LPS0 s2idle handler with acpi_register_lps0_dev() and creates the driver's debugfs directory before calling amd_stb_s2d_init(), which is the last step in probe that can fail. When amd_stb_s2d_init() fails (for example the S2D telemetry region cannot be ioremapped on a long-running system, or the SMU rejects the S2D setup) the error path only calls pci_dev_put() and returns. This leaves amd_pmc_s2idle_dev_ops on the global lps0_s2idle_devops_head list and leaks the debugfs directory, while the devm-managed resources backing the handler are torn down. Reloading the module then walks the corrupted list in acpi_register_lps0_dev() and hits: list_add corruption. next->prev should be prev, but was NULL. kernel BUG at lib/list_debug.c:29! acpi_register_lps0_dev+0x44/0x80 amd_pmc_probe+0x224/0x380 [amd_pmc] platform_probe+0x67/0x90 Even without a reload, the stale registration means the next s2idle transition calls into torn-down driver state. Unwind the debugfs directory and the LPS0 registration on the amd_stb_s2d_init() error path. acpi_unregister_lps0_dev() is safe to call unconditionally here: it is guarded on the same conditions as acpi_register_lps0_dev(), which is exactly what amd_pmc_remove() already relies on.
Quoted source text, attributed separately from HOL analysis.