Answer in brief
CVE-2025-40242 records a Unknown severity vulnerability in gfs2: Fix unlikely race in gdlm_put_lock. 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 | >=d1340f80f0b8066321b499a376780da00560e857 <5fdc1474e678eea1700aa266c0b7c2c96f81dd0d || >=d1340f80f0b8066321b499a376780da00560e857 <4913592a3358f6ec366b8346b733d5e2360b08e1 || >=d1340f80f0b8066321b499a376780da00560e857 <279bde3bbb0ac0bad5c729dfa85983d75a5d7641 || >=d1340f80f0b8066321b499a376780da00560e857 <64c61b4ac645222fa7b724cef616c1f862a72a40 || >=d1340f80f0b8066321b499a376780da00560e857 <28c4d9bc0708956c1a736a9e49fee71b65deee81 || 6aa628c45875e7b8cca81ed9447a12a0e8f3504a || a97e75203733be0a4263a78fb7b29352be150c1c || 3554b46204e67333e1fb8be0e93936fb08267c80 || 5cff77b9827a956d076168b56775aad23bce87e4 || 8deedce385d220f90e435f534d71d27526273515 || 2225a5cd2fbc2ef0e0f78e585db3844f60416a39 || 02e838963fdaa6ce8570b5389aecdc6cf1fb40b0 || 01eb3106f43335fdc02111358dae80a5c3fd324d || >=4.4.284 <4.5 || >=4.9.283 <4.10 || >=4.14.247 <4.15 || >=4.19.207 <4.20 || >=5.4.148 <5.5 || >=5.10.67 <5.11 || >=5.13.19 <5.14 || >=5.14.6 <5.15 | 5fdc1474e678eea1700aa266c0b7c2c96f81dd0d, 4913592a3358f6ec366b8346b733d5e2360b08e1, 279bde3bbb0ac0bad5c729dfa85983d75a5d7641, 64c61b4ac645222fa7b724cef616c1f862a72a40, 28c4d9bc0708956c1a736a9e49fee71b65deee81, 4.5, 4.10, 4.15, 4.20, 5.5, 5.11, 5.14, 5.15 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Dec 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: gfs2: Fix unlikely race in gdlm_put_lock In gdlm_put_lock(), there is a small window of time in which the DFL_UNMOUNT flag has been set but the lockspace hasn't been released, yet. In that window, dlm may still call gdlm_ast() and gdlm_bast(). To prevent it from dereferencing freed glock objects, only free the glock if the lockspace has actually been released.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-40242 records a Unknown severity vulnerability in gfs2: Fix unlikely race in gdlm_put_lock. 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 | >=d1340f80f0b8066321b499a376780da00560e857 <5fdc1474e678eea1700aa266c0b7c2c96f81dd0d || >=d1340f80f0b8066321b499a376780da00560e857 <4913592a3358f6ec366b8346b733d5e2360b08e1 || >=d1340f80f0b8066321b499a376780da00560e857 <279bde3bbb0ac0bad5c729dfa85983d75a5d7641 || >=d1340f80f0b8066321b499a376780da00560e857 <64c61b4ac645222fa7b724cef616c1f862a72a40 || >=d1340f80f0b8066321b499a376780da00560e857 <28c4d9bc0708956c1a736a9e49fee71b65deee81 || 6aa628c45875e7b8cca81ed9447a12a0e8f3504a || a97e75203733be0a4263a78fb7b29352be150c1c || 3554b46204e67333e1fb8be0e93936fb08267c80 || 5cff77b9827a956d076168b56775aad23bce87e4 || 8deedce385d220f90e435f534d71d27526273515 || 2225a5cd2fbc2ef0e0f78e585db3844f60416a39 || 02e838963fdaa6ce8570b5389aecdc6cf1fb40b0 || 01eb3106f43335fdc02111358dae80a5c3fd324d || >=4.4.284 <4.5 || >=4.9.283 <4.10 || >=4.14.247 <4.15 || >=4.19.207 <4.20 || >=5.4.148 <5.5 || >=5.10.67 <5.11 || >=5.13.19 <5.14 || >=5.14.6 <5.15 | 5fdc1474e678eea1700aa266c0b7c2c96f81dd0d, 4913592a3358f6ec366b8346b733d5e2360b08e1, 279bde3bbb0ac0bad5c729dfa85983d75a5d7641, 64c61b4ac645222fa7b724cef616c1f862a72a40, 28c4d9bc0708956c1a736a9e49fee71b65deee81, 4.5, 4.10, 4.15, 4.20, 5.5, 5.11, 5.14, 5.15 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Dec 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: gfs2: Fix unlikely race in gdlm_put_lock In gdlm_put_lock(), there is a small window of time in which the DFL_UNMOUNT flag has been set but the lockspace hasn't been released, yet. In that window, dlm may still call gdlm_ast() and gdlm_bast(). To prevent it from dereferencing freed glock objects, only free the glock if the lockspace has actually been released.
Quoted source text, attributed separately from HOL analysis.