Answer in brief
CVE-2022-49931 records a High severity (CVSS 8.8) vulnerability in IB/hfi1: Correctly move list in sc_disable(). 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d997d4e4365f7e59cf6b59c70f966c56d704b64f <25760a41e3802f54aadcc31385543665ab349b8e || >=d98883f6c33e0d960afedcecaa92fc2b61fec383 <7c4260f8f188df32414a5ecad63e8b934c2aa3f0 || >=13bac861952a78664907a0f927d3e874e9a59034 <ba95409d6b580501ff6d78efd00064f7df669926 || >=13bac861952a78664907a0f927d3e874e9a59034 <b8bcff99b07cc175a6ee12a52db51cdd2229586c || >=13bac861952a78664907a0f927d3e874e9a59034 <1afac08b39d85437187bb2a92d89a741b1078f55 || 5d33bd6b4d4d035e42733592899918a18f2540da || >=5.4.157 <5.4.224 || >=5.10.77 <5.10.154 || >=5.14.16 <5.15 | 25760a41e3802f54aadcc31385543665ab349b8e, 7c4260f8f188df32414a5ecad63e8b934c2aa3f0, ba95409d6b580501ff6d78efd00064f7df669926, b8bcff99b07cc175a6ee12a52db51cdd2229586c, 1afac08b39d85437187bb2a92d89a741b1078f55, 5.4.224, 5.10.154, 5.15 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
May 1, 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 4, 2026
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Correctly move list in sc_disable() Commit 13bac861952a ("IB/hfi1: Fix abba locking issue with sc_disable()") incorrectly tries to move a list from one list head to another. The result is a kernel crash. The crash is triggered when a link goes down and there are waiters for a send to complete. The following signature is seen: BUG: kernel NULL pointer dereference, address: 0000000000000030 [...] Call Trace: sc_disable+0x1ba/0x240 [hfi1] pio_freeze+0x3d/0x60 [hfi1] handle_freeze+0x27/0x1b0 [hfi1] process_one_work+0x1b0/0x380 ? process_one_work+0x380/0x380 worker_thread+0x30/0x360 ? process_one_work+0x380/0x380 kthread+0xd7/0x100 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 The fix is to use the correct call to move the list.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2022-49931 records a High severity (CVSS 8.8) vulnerability in IB/hfi1: Correctly move list in sc_disable(). 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d997d4e4365f7e59cf6b59c70f966c56d704b64f <25760a41e3802f54aadcc31385543665ab349b8e || >=d98883f6c33e0d960afedcecaa92fc2b61fec383 <7c4260f8f188df32414a5ecad63e8b934c2aa3f0 || >=13bac861952a78664907a0f927d3e874e9a59034 <ba95409d6b580501ff6d78efd00064f7df669926 || >=13bac861952a78664907a0f927d3e874e9a59034 <b8bcff99b07cc175a6ee12a52db51cdd2229586c || >=13bac861952a78664907a0f927d3e874e9a59034 <1afac08b39d85437187bb2a92d89a741b1078f55 || 5d33bd6b4d4d035e42733592899918a18f2540da || >=5.4.157 <5.4.224 || >=5.10.77 <5.10.154 || >=5.14.16 <5.15 | 25760a41e3802f54aadcc31385543665ab349b8e, 7c4260f8f188df32414a5ecad63e8b934c2aa3f0, ba95409d6b580501ff6d78efd00064f7df669926, b8bcff99b07cc175a6ee12a52db51cdd2229586c, 1afac08b39d85437187bb2a92d89a741b1078f55, 5.4.224, 5.10.154, 5.15 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
May 1, 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 4, 2026
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Correctly move list in sc_disable() Commit 13bac861952a ("IB/hfi1: Fix abba locking issue with sc_disable()") incorrectly tries to move a list from one list head to another. The result is a kernel crash. The crash is triggered when a link goes down and there are waiters for a send to complete. The following signature is seen: BUG: kernel NULL pointer dereference, address: 0000000000000030 [...] Call Trace: sc_disable+0x1ba/0x240 [hfi1] pio_freeze+0x3d/0x60 [hfi1] handle_freeze+0x27/0x1b0 [hfi1] process_one_work+0x1b0/0x380 ? process_one_work+0x380/0x380 worker_thread+0x30/0x360 ? process_one_work+0x380/0x380 kthread+0xd7/0x100 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 The fix is to use the correct call to move the list.
Quoted source text, attributed separately from HOL analysis.