Answer in brief
CVE-2026-80777 records a Unknown severity vulnerability in futex/pi: Plug private futex exec() race. 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.
A CVSS score is not reported in the current record. 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 | >=80367ad01d93ac781b0e1df246edaf006928002f <fdf538b2e69653ff740e84042245018e5680cd7b || >=80367ad01d93ac781b0e1df246edaf006928002f <0478bc6bf197629fea0331d65b39eeea043c6cf0 || >=80367ad01d93ac781b0e1df246edaf006928002f <d7944cee62ec6cca1c90780a766960a57d3b4bb8 || >=80367ad01d93ac781b0e1df246edaf006928002f <c5f0bc9fd1cec4a00400cc727fcde03e0fde17cc | fdf538b2e69653ff740e84042245018e5680cd7b, 0478bc6bf197629fea0331d65b39eeea043c6cf0, d7944cee62ec6cca1c90780a766960a57d3b4bb8, c5f0bc9fd1cec4a00400cc727fcde03e0fde17cc |
| Linux/Linuxgeneric | 6.16 | Not reported |
Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 4, 2026
In the Linux kernel, the following vulnerability has been resolved: futex/pi: Plug private futex exec() race The check for private futexes whether the waiter's mm, which is stored in the futex_key and copied into the pi_state, is the same as the owner's mm is not sufficient for exec(). exec() has a gap where the mm check fails to give the correct answer: exec() ... exec_release_mm() futex_exec_release() tsk::futex::exit_state = EXITING; cleanup_robust_list(); 1) tsk::futex::exit_state = OK; ... old_mm = tsk::mm; 2) tsk::mm = ->mm; Between #1 and #2 the check for the mm is wrong as that mm is about to be swapped out and eventually freed. Plug this gap by: 1) Setting tsk::futex::exit_state to FUTEX_STATE_DEAD in futex_exec_release() 2) Setting tsk::futex::exit_state to FUTEX_STATE_OK after the mm has been switched. From a futex point of view the task is dead after it finished the robust list cleanup up to the point where it sets the state to OK again.
Quoted source text, attributed separately from HOL analysis.