# CVE-2022-50331: linux: In the Linux kernel, the following vulnerability has been resolved:  wwan_hwsim: fix possible memory leak in wwan_hws...

CVE-2022-50331 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50331, released September 15, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-50331
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 15, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  wwan_hwsim: fix possible memory leak in wwan_hwsim_dev_new()  Inject fault while probing module, if device_register() fails, but the refcount of kobject is not decreased to 0, the name allocated in dev_set_name() is leaked. Fix this by calling put_device(), so that name can be freed in callback function kobject_cleanup().  unreferenced object 0xffff88810152ad20 (size 8):   comm "modprobe", pid 252, jiffies 4294849206 (age 22.713s)   hex dump (first 8 bytes):     68 77 73 69 6d 30 00 ff                          hwsim0..   backtrace:     [<000000009c3504ed>] __kmalloc_node_track_caller+0x44/0x1b0     [<00000000c0228a5e>] kvasprintf+0xb5/0x140     [<00000000cff8c21f>] kvasprintf_const+0x55/0x180     [<0000000055a1e073>] kobject_set_name_vargs+0x56/0x150     [<000000000a80b139>] dev_set_name+0xab/0xe0

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.0.6-1 | [DEBIAN-CVE-2022-50331](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50331.md) | Sep 15, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.0.6-1 | [DEBIAN-CVE-2022-50331](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50331.md) | Sep 15, 2025 |
| Linux | linux Debian 14 | 6.0.6-1 | [DEBIAN-CVE-2022-50331](https://patchblox.com/security/data/fix/linux/debian-cve-2022-50331.md) | Sep 15, 2025 |

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