Answer in brief
CVE-2023-52454 records a High severity (CVSS 7.5) vulnerability in nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length. 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.
Answer in brief
CVE-2023-52454 records a High severity (CVSS 7.5) vulnerability in nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length. 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 7.5. 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). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <ee5e7632e981673f42a50ade25e71e612e543d9d || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <f775f2621c2ac5cc3a0b3a64665dad4fb146e510 || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <2871aa407007f6f531fae181ad252486e022df42 || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <24e05760186dc070d3db190ca61efdbce23afc88 || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68 || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <efa56305908ba20de2104f1b8508c6a7401833be | ee5e7632e981673f42a50ade25e71e612e543d9d, f775f2621c2ac5cc3a0b3a64665dad4fb146e510, 4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d, 2871aa407007f6f531fae181ad252486e022df42, 24e05760186dc070d3db190ca61efdbce23afc88, 70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68, efa56305908ba20de2104f1b8508c6a7401833be |
| Linux/Linuxgeneric | 5.0 | Not reported |
Published upstream
Feb 23, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length If the host sends an H2CData command with an invalid DATAL, the kernel may crash in nvmet_tcp_build_pdu_iovec(). Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 lr : nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp] Call trace: process_one_work+0x174/0x3c8 worker_thread+0x2d0/0x3e8 kthread+0x104/0x110 Fix the bug by raising a fatal error if DATAL isn't coherent with the packet size. Also, the PDU length should never exceed the MAXH2CDATA parameter which has been communicated to the host in nvmet_tcp_handle_icreq().
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.5. 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). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <ee5e7632e981673f42a50ade25e71e612e543d9d || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <f775f2621c2ac5cc3a0b3a64665dad4fb146e510 || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <2871aa407007f6f531fae181ad252486e022df42 || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <24e05760186dc070d3db190ca61efdbce23afc88 || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68 || >=872d26a391da92ed8f0c0f5cb5fef428067b7f30 <efa56305908ba20de2104f1b8508c6a7401833be | ee5e7632e981673f42a50ade25e71e612e543d9d, f775f2621c2ac5cc3a0b3a64665dad4fb146e510, 4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d, 2871aa407007f6f531fae181ad252486e022df42, 24e05760186dc070d3db190ca61efdbce23afc88, 70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68, efa56305908ba20de2104f1b8508c6a7401833be |
| Linux/Linuxgeneric | 5.0 | Not reported |
Published upstream
Feb 23, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length If the host sends an H2CData command with an invalid DATAL, the kernel may crash in nvmet_tcp_build_pdu_iovec(). Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 lr : nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp] Call trace: process_one_work+0x174/0x3c8 worker_thread+0x2d0/0x3e8 kthread+0x104/0x110 Fix the bug by raising a fatal error if DATAL isn't coherent with the packet size. Also, the PDU length should never exceed the MAXH2CDATA parameter which has been communicated to the host in nvmet_tcp_handle_icreq().
Quoted source text, attributed separately from HOL analysis.