CVE-2022-49312staging: rtl8712: fix a potential memory leak in r871xu_drv_init()
- 5.5MediumCVSS base score
- 0.27%Exploitation in 30 daysEPSS · top 81% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix a potential memory leak in r871xu_drv_init() In r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory allocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not properly released as there is no action will be performed by r8712_usb_dvobj_deinit(). To properly release it, we should call r8712_free_io_queue() in r8712_usb_dvobj_deinit(). Besides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called by r871x_dev_unload() under condition `padapter->bup` and r8712_free_io_queue() is called by r8712_free_drv_sw(). However, r8712_usb_dvobj_deinit() does not rely on `padapter->bup` and calling r8712_free_io_queue() in r8712_free_drv_sw() is negative for better understading the code. So I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove r8712_free_io_queue() from r8712_free_drv_sw().
Timeline
ID reserved
By Linux
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef – < 5a89a92efc342dd7c44b6056da87debc598f9c73
- affected 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef – < 8eb42d6d10f8fe509117859defddf9e72b4fa4d0
- affected 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef – < 205e039fead72e87ad2838f5e649a4c4834f648b
- affected 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef – < a2882b8baad068d21c99fb2ab5a85a2bdbd5b834
- affected 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef – < 7288ff561de650d4139fab80e9cb0da9b5b32434
- affected 2.6.37
- unaffected < 2.6.37
- unaffected 5.10.122 – ≤ 5.10.*
- unaffected 5.15.47 – ≤ 5.15.*
- unaffected 5.17.15 – ≤ 5.17.*
- unaffected 5.18.4 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References
References5
- https://git.kernel.org/stable/c/5a89a92efc342dd7c44b6056da87debc598f9c73 (opens in a new tab)
- https://git.kernel.org/stable/c/8eb42d6d10f8fe509117859defddf9e72b4fa4d0 (opens in a new tab)
- https://git.kernel.org/stable/c/205e039fead72e87ad2838f5e649a4c4834f648b (opens in a new tab)
- https://git.kernel.org/stable/c/a2882b8baad068d21c99fb2ab5a85a2bdbd5b834 (opens in a new tab)
- https://git.kernel.org/stable/c/7288ff561de650d4139fab80e9cb0da9b5b32434 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-54915 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-49312)Record last updated .