Answer in brief
CVE-2022-48858 records a High severity (CVSS 7.0) vulnerability in net/mlx5: Fix a race on command flush flow. 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 7.0. 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 | >=073fff8102062cd675170ceb54d90da22fe7e668 <1a4017926eeea56c7540cc41b42106746ee8a0ee || >=50b2412b7e7862c5af0cbf4b10d93bc5c712d021 <f3331bc17449f15832c31823f27573f4c0e13e5f || >=50b2412b7e7862c5af0cbf4b10d93bc5c712d021 <7c519f769f555ff7d9d4ccba3497bbb589df360a || >=50b2412b7e7862c5af0cbf4b10d93bc5c712d021 <0401bfb27a91d7bdd74b1635c1aae57cbb128da6 || >=50b2412b7e7862c5af0cbf4b10d93bc5c712d021 <063bd355595428750803d8736a9bb7c8db67d42d || da87ea137373689dec9d3fafa34a57787320a4b3 || >=5.4.71 <5.4.185 || >=5.8.15 <5.9 | 1a4017926eeea56c7540cc41b42106746ee8a0ee, f3331bc17449f15832c31823f27573f4c0e13e5f, 7c519f769f555ff7d9d4ccba3497bbb589df360a, 0401bfb27a91d7bdd74b1635c1aae57cbb128da6, 063bd355595428750803d8736a9bb7c8db67d42d, 5.4.185, 5.9 |
| Linux/Linuxgeneric | 5.9 | Not reported |
Published upstream
Jul 16, 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: net/mlx5: Fix a race on command flush flow Fix a refcount use after free warning due to a race on command entry. Such race occurs when one of the commands releases its last refcount and frees its index and entry while another process running command flush flow takes refcount to this command entry. The process which handles commands flush may see this command as needed to be flushed if the other process released its refcount but didn't release the index yet. Fix it by adding the needed spin lock. It fixes the following warning trace: refcount_t: addition on 0; use-after-free. WARNING: CPU: 11 PID: 540311 at lib/refcount.c:25 refcount_warn_saturate+0x80/0xe0 ... RIP: 0010:refcount_warn_saturate+0x80/0xe0 ... Call Trace: <TASK> mlx5_cmd_trigger_completions+0x293/0x340 [mlx5_core] mlx5_cmd_flush+0x3a/0xf0 [mlx5_core] enter_error_state+0x44/0x80 [mlx5_core] mlx5_fw_fatal_reporter_err_work+0x37/0xe0 [mlx5_core] process_one_work+0x1be/0x390 worker_thread+0x4d/0x3d0 ? rescuer_thread+0x350/0x350 kthread+0x141/0x160 ? set_kthread_struct+0x40/0x40 ret_from_fork+0x1f/0x30 </TASK>
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2022-48858 records a High severity (CVSS 7.0) vulnerability in net/mlx5: Fix a race on command flush flow. 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 7.0. 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 | >=073fff8102062cd675170ceb54d90da22fe7e668 <1a4017926eeea56c7540cc41b42106746ee8a0ee || >=50b2412b7e7862c5af0cbf4b10d93bc5c712d021 <f3331bc17449f15832c31823f27573f4c0e13e5f || >=50b2412b7e7862c5af0cbf4b10d93bc5c712d021 <7c519f769f555ff7d9d4ccba3497bbb589df360a || >=50b2412b7e7862c5af0cbf4b10d93bc5c712d021 <0401bfb27a91d7bdd74b1635c1aae57cbb128da6 || >=50b2412b7e7862c5af0cbf4b10d93bc5c712d021 <063bd355595428750803d8736a9bb7c8db67d42d || da87ea137373689dec9d3fafa34a57787320a4b3 || >=5.4.71 <5.4.185 || >=5.8.15 <5.9 | 1a4017926eeea56c7540cc41b42106746ee8a0ee, f3331bc17449f15832c31823f27573f4c0e13e5f, 7c519f769f555ff7d9d4ccba3497bbb589df360a, 0401bfb27a91d7bdd74b1635c1aae57cbb128da6, 063bd355595428750803d8736a9bb7c8db67d42d, 5.4.185, 5.9 |
| Linux/Linuxgeneric | 5.9 | Not reported |
Published upstream
Jul 16, 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: net/mlx5: Fix a race on command flush flow Fix a refcount use after free warning due to a race on command entry. Such race occurs when one of the commands releases its last refcount and frees its index and entry while another process running command flush flow takes refcount to this command entry. The process which handles commands flush may see this command as needed to be flushed if the other process released its refcount but didn't release the index yet. Fix it by adding the needed spin lock. It fixes the following warning trace: refcount_t: addition on 0; use-after-free. WARNING: CPU: 11 PID: 540311 at lib/refcount.c:25 refcount_warn_saturate+0x80/0xe0 ... RIP: 0010:refcount_warn_saturate+0x80/0xe0 ... Call Trace: <TASK> mlx5_cmd_trigger_completions+0x293/0x340 [mlx5_core] mlx5_cmd_flush+0x3a/0xf0 [mlx5_core] enter_error_state+0x44/0x80 [mlx5_core] mlx5_fw_fatal_reporter_err_work+0x37/0xe0 [mlx5_core] process_one_work+0x1be/0x390 worker_thread+0x4d/0x3d0 ? rescuer_thread+0x350/0x350 kthread+0x141/0x160 ? set_kthread_struct+0x40/0x40 ret_from_fork+0x1f/0x30 </TASK>
Quoted source text, attributed separately from HOL analysis.