staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()
Priority LOW 33CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() The free_rtllib() function frees the "dev" pointer so there is use after free on the next line. Re-arrange things to avoid that.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00215 12th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 4.4.294, 4.9.292, 4.14.257 +5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.2 and later | 4.4.294, 4.9.292, 4.14.257, 4.19.219, 5.4.163, 5.10.83, 5.15.6, 5.16 | Patch available | CNA |
- Linux VendorLinux Affected 3.2 and later Fixed in 4.4.294, 4.9.292, 4.14.257, 4.19.219, 5.4.163, 5.10.83, 5.15.6, 5.16 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.2 to before 4.4.294; 4.5 to before 4.9.292; 4.10 to before 4.14.257; 4.15 to before 4.19.219; 4.20 to before 5.4.163; 5.5 to before 5.10.83; 5.11 to before 5.15.6 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.2 to before 4.4.294; 4.5 to before 4.9.292; 4.10 to before 4.14.257; 4.15 to before 4.19.219; 4.20 to before 5.4.163; 5.5 to before 5.10.83; 5.11 to before 5.15.6 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.4.294, 4.9.292, 4.14.257, 4.19.219, 5.4.163, 5.10.83, 5.15.6, 5.16
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-47571
References
Patch 8
- https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443
- https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683b
- https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82
- https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13ef
- https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6
- https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64
- https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594
- https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2021-47571 · CVE Program
- CVE-2021-47571 · NVD
- FIRST EPSS
- CVE-2021-47571 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences