CVE-2022-48858
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net/mlx5: Fix a race on command flush flow
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>
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 073fff8102062cd675170ceb54d90da22fe7e668 | affected | git | 1a4017926eeea56c7540cc41b42106746ee8a0ee | Unavailable | None listed |
| 50b2412b7e7862c5af0cbf4b10d93bc5c712d021 | affected | git | f3331bc17449f15832c31823f27573f4c0e13e5f | Unavailable | None listed |
| 50b2412b7e7862c5af0cbf4b10d93bc5c712d021 | affected | git | 7c519f769f555ff7d9d4ccba3497bbb589df360a | Unavailable | None listed |
| 50b2412b7e7862c5af0cbf4b10d93bc5c712d021 | affected | git | 0401bfb27a91d7bdd74b1635c1aae57cbb128da6 | Unavailable | None listed |
| 50b2412b7e7862c5af0cbf4b10d93bc5c712d021 | affected | git | 063bd355595428750803d8736a9bb7c8db67d42d | Unavailable | None listed |
| da87ea137373689dec9d3fafa34a57787320a4b3 | affected | git | Unavailable | Unavailable | None listed |
| 5.4.71 | affected | semver | 5.4.185 | Unavailable | None listed |
| 5.8.15 | affected | semver | 5.9 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.9 | Unavailable | None listed |
| 5.4.185 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.106 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.29 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.16.15 | unaffected | semver | Unavailable | 5.16.* | None listed |
| 5.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |