Answer in brief
CVE-2024-42079 records a Medium severity (CVSS 5.5) vulnerability in gfs2: Fix NULL pointer dereference in gfs2_log_flush. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2024-42079 records a Medium severity (CVSS 5.5) vulnerability in gfs2: Fix NULL pointer dereference in gfs2_log_flush. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. 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 5.5. 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), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=82218943058d5e3fe692a38b5a549479738dab33 <c3c5cfa3170c0940bc66a142859caac07d19b9d6 || >=82218943058d5e3fe692a38b5a549479738dab33 <5f6a84cfb33b34610623857bd93919dcb661e29b || >=82218943058d5e3fe692a38b5a549479738dab33 <3429ef5f50909cee9e498c50f0c499b9397116ce || >=82218943058d5e3fe692a38b5a549479738dab33 <f54f9d5368a4e92ede7dd078a62788dae3a7c6ef || >=82218943058d5e3fe692a38b5a549479738dab33 <35264909e9d1973ab9aaa2a1b07cda70f12bb828 | c3c5cfa3170c0940bc66a142859caac07d19b9d6, 5f6a84cfb33b34610623857bd93919dcb661e29b, 3429ef5f50909cee9e498c50f0c499b9397116ce, f54f9d5368a4e92ede7dd078a62788dae3a7c6ef, 35264909e9d1973ab9aaa2a1b07cda70f12bb828 |
| Linux/Linuxgeneric | 5.12 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Jul 29, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix NULL pointer dereference in gfs2_log_flush In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush lock to provide exclusion against gfs2_log_flush(). In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before dereferencing it. Otherwise, we could run into a NULL pointer dereference when outstanding glock work races with an unmount (glock_work_func -> run_queue -> do_xmote -> inode_go_sync -> gfs2_log_flush).
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. 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), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=82218943058d5e3fe692a38b5a549479738dab33 <c3c5cfa3170c0940bc66a142859caac07d19b9d6 || >=82218943058d5e3fe692a38b5a549479738dab33 <5f6a84cfb33b34610623857bd93919dcb661e29b || >=82218943058d5e3fe692a38b5a549479738dab33 <3429ef5f50909cee9e498c50f0c499b9397116ce || >=82218943058d5e3fe692a38b5a549479738dab33 <f54f9d5368a4e92ede7dd078a62788dae3a7c6ef || >=82218943058d5e3fe692a38b5a549479738dab33 <35264909e9d1973ab9aaa2a1b07cda70f12bb828 | c3c5cfa3170c0940bc66a142859caac07d19b9d6, 5f6a84cfb33b34610623857bd93919dcb661e29b, 3429ef5f50909cee9e498c50f0c499b9397116ce, f54f9d5368a4e92ede7dd078a62788dae3a7c6ef, 35264909e9d1973ab9aaa2a1b07cda70f12bb828 |
| Linux/Linuxgeneric | 5.12 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Jul 29, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix NULL pointer dereference in gfs2_log_flush In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush lock to provide exclusion against gfs2_log_flush(). In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before dereferencing it. Otherwise, we could run into a NULL pointer dereference when outstanding glock work races with an unmount (glock_work_func -> run_queue -> do_xmote -> inode_go_sync -> gfs2_log_flush).
Quoted source text, attributed separately from HOL analysis.