Answer in brief
CVE-2025-38102 records a High severity (CVSS 7.8) vulnerability in VMCI: fix race between vmci_host_setup_notify and vmci_ctx_unset_notify. The current sources do not mark it as known exploited. The current feed maps 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). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=a1d88436d53a75e950db15834b3d2f8c0c358fdc <74095bbbb19ca74a0368d857603a2438c88ca86c || >=a1d88436d53a75e950db15834b3d2f8c0c358fdc <468aec888f838ce5174b96e0cb4396790d6f60ca || >=a1d88436d53a75e950db15834b3d2f8c0c358fdc <b4209e4b778e4e57d0636e1c9fc07a924dbc6043 || >=a1d88436d53a75e950db15834b3d2f8c0c358fdc <58a90db70aa6616411e5f69d1982d9b1dd97d774 || >=a1d88436d53a75e950db15834b3d2f8c0c358fdc <6e3af836805ed1d7a699f76ec798626198917aa4 || >=a1d88436d53a75e950db15834b3d2f8c0c358fdc <00ddc7dad55b7bbb78df80d6e174d0c4764dea0c || >=a1d88436d53a75e950db15834b3d2f8c0c358fdc <75b5313c80c39a26d27cbb602f968a05576c36f9 || >=a1d88436d53a75e950db15834b3d2f8c0c358fdc <1bd6406fb5f36c2bb1e96e27d4c3e9f4d09edde4 | 74095bbbb19ca74a0368d857603a2438c88ca86c, 468aec888f838ce5174b96e0cb4396790d6f60ca, b4209e4b778e4e57d0636e1c9fc07a924dbc6043, 58a90db70aa6616411e5f69d1982d9b1dd97d774, 6e3af836805ed1d7a699f76ec798626198917aa4, 00ddc7dad55b7bbb78df80d6e174d0c4764dea0c, 75b5313c80c39a26d27cbb602f968a05576c36f9, 1bd6406fb5f36c2bb1e96e27d4c3e9f4d09edde4 |
| Linux/Linuxgeneric | 4.0 | Not reported |
Published upstream
Jul 3, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: VMCI: fix race between vmci_host_setup_notify and vmci_ctx_unset_notify During our test, it is found that a warning can be trigger in try_grab_folio as follow: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1678 at mm/gup.c:147 try_grab_folio+0x106/0x130 Modules linked in: CPU: 0 UID: 0 PID: 1678 Comm: syz.3.31 Not tainted 6.15.0-rc5 #163 PREEMPT(undef) RIP: 0010:try_grab_folio+0x106/0x130 Call Trace: <TASK> follow_huge_pmd+0x240/0x8e0 follow_pmd_mask.constprop.0.isra.0+0x40b/0x5c0 follow_pud_mask.constprop.0.isra.0+0x14a/0x170 follow_page_mask+0x1c2/0x1f0 __get_user_pages+0x176/0x950 __gup_longterm_locked+0x15b/0x1060 ? gup_fast+0x120/0x1f0 gup_fast_fallback+0x17e/0x230 get_user_pages_fast+0x5f/0x80 vmci_host_unlocked_ioctl+0x21c/0xf80 RIP: 0033:0x54d2cd ---[ end trace 0000000000000000 ]--- Digging into the source, context->notify_page may init by get_user_pages_fast and can be seen in vmci_ctx_unset_notify which will try to put_page. However get_user_pages_fast is not finished here and lead to following try_grab_folio warning. The race condition is shown as follow: cpu0 cpu1 vmci_host_do_set_notify vmci_host_setup_notify get_user_pages_fast(uva, 1, FOLL_WRITE, &context->notify_page); lockless_pages_from_mm gup_pgd_range gup_huge_pmd // update &context->notify_page vmci_host_do_set_notify vmci_ctx_unset_notify notify_page = context->notify_page; if (notify_page) put_page(notify_page); // page is freed __gup_longterm_locked __get_user_pages follow_trans_huge_pmd try_grab_folio // warn here To slove this, use local variable page to make notify_page can be seen after finish get_user_pages_fast.
Quoted source text, attributed separately from HOL analysis.