CVE-2021-47311
net: qcom/emac: fix UAF in emac_remove
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
net: qcom/emac: fix UAF in emac_remove
adpt is netdev private data and it cannot be
used after free_netdev() call. Using adpt after free_netdev()
can cause UAF bug. Fix it by moving free_netdev() at the end of the
function.
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: net: qcom/emac: corrige UAF en emac_remove adpt son datos privados de netdev y no se pueden usar después de la llamada a free_netdev(). Usar adpt después de free_netdev() puede causar un error en UAF. Solucionadlo moviendo free_netdev() al final de la función.
A vulnerability was found in the Linux kernel's Qualcomm EMAC driver, where the emac_remove function can lead to a use-after-free issue when the driver tries to access data after the network device has been freed, causing instability and a crash in the network subsystem.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-05-21 CVE Reserved
- 2024-05-21 CVE Published
- 2024-05-22 EPSS Updated
- 2024-12-19 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/54e19bc74f3380d414681762ceed9f7245bc6a6e | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2021-47311 | 2024-08-13 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2282471 | 2024-08-13 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.9 < 4.9.277 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.9 < 4.9.277" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.9 < 4.14.241 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.9 < 4.14.241" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.9 < 4.19.199 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.9 < 4.19.199" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.9 < 5.4.135 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.9 < 5.4.135" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.9 < 5.10.53 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.9 < 5.10.53" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.9 < 5.13.5 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.9 < 5.13.5" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.9 < 5.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.9 < 5.14" | en |
Affected
| ||||||