Answer in brief
CVE-2022-49821 records a Medium severity (CVSS 5.5) vulnerability in mISDN: fix possible memory leak in mISDN_dsp_element_register(). 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 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). 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 |
| cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1fa5ae857bb14f6046205171d98506d8112dd74e <bbd53d05c4c892080ef3b617eff4f57903acecb9 || >=1fa5ae857bb14f6046205171d98506d8112dd74e <b119bedbefb7dd9ed8bf8cb9f1056504250d610e || >=1fa5ae857bb14f6046205171d98506d8112dd74e <727ed7d28348c026c7ef4d852f3d0e5054d376e8 || >=1fa5ae857bb14f6046205171d98506d8112dd74e <0f2c681900a01e3f23789bca26d88268c3d5b51d || >=1fa5ae857bb14f6046205171d98506d8112dd74e <083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47 || >=1fa5ae857bb14f6046205171d98506d8112dd74e <7a05e3929668c8cfef495c69752a9e91fac4878f || >=1fa5ae857bb14f6046205171d98506d8112dd74e <d4b8394725079670be309f9a35ad88a8cbbaaefd || >=1fa5ae857bb14f6046205171d98506d8112dd74e <98a2ac1ca8fd6eca6867726fe238d06e75eb1acd | bbd53d05c4c892080ef3b617eff4f57903acecb9, b119bedbefb7dd9ed8bf8cb9f1056504250d610e, 727ed7d28348c026c7ef4d852f3d0e5054d376e8, 0f2c681900a01e3f23789bca26d88268c3d5b51d, 083a2c9ef82e184bdf0b9f9a1e5fc38d32afbb47, 7a05e3929668c8cfef495c69752a9e91fac4878f, d4b8394725079670be309f9a35ad88a8cbbaaefd, 98a2ac1ca8fd6eca6867726fe238d06e75eb1acd |
| Linux/Linuxgeneric | 2.6.30 | Not reported |
Published upstream
May 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: mISDN: fix possible memory leak in mISDN_dsp_element_register() Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, use put_device() to give up the reference, so that the name can be freed in kobject_cleanup() when the refcount is 0. The 'entry' is going to be freed in mISDN_dsp_dev_release(), so the kfree() is removed. list_del() is called in mISDN_dsp_dev_release(), so it need be initialized.
Quoted source text, attributed separately from HOL analysis.