Answer in brief
CVE-2026-72492 records a High severity (CVSS 8.8) vulnerability in ksmbd: fix use-after-free in same_client_has_lease(). 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 8.8. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <aaa3bb2bbf2ccbfea9e4e0b9dabf3afc60b50cd0 || >=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <09634cd055d9bd8dd167995ea52bcd8028dd5dac || >=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <7c3264d273d524aa6adcce23c01087271f13586f || >=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <79c7c59bb519db6f5a2a151965e825ec725614cc || >=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <35d3d6ff2bc1e7aaecb15d5377ebbd6227acae0d || >=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <0ff82a9cf9312678d8bc4edeef0b6e82659ac12a || >=e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <65b655f65c3ca1ab5d598d3832bb0ff531725858 | aaa3bb2bbf2ccbfea9e4e0b9dabf3afc60b50cd0, 09634cd055d9bd8dd167995ea52bcd8028dd5dac, 7c3264d273d524aa6adcce23c01087271f13586f, 79c7c59bb519db6f5a2a151965e825ec725614cc, 35d3d6ff2bc1e7aaecb15d5377ebbd6227acae0d, 0ff82a9cf9312678d8bc4edeef0b6e82659ac12a, 65b655f65c3ca1ab5d598d3832bb0ff531725858 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in same_client_has_lease() same_client_has_lease() returns an opinfo pointer from ci->m_op_list after dropping ci->m_lock without taking a reference. smb_grant_oplock() then dereferences that pointer in copy_lease() and when checking breaking_cnt. A concurrent close can remove the old lease from ci->m_op_list and drop the last reference before the caller uses the returned pointer, leading to a use-after-free. Take a reference when same_client_has_lease() selects an existing lease, drop any previous match while scanning, and release the returned reference in smb_grant_oplock() after copying the lease state.
Quoted source text, attributed separately from HOL analysis.