vulnerability
Ubuntu: (CVE-2021-47670): linux vulnerability
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Apr 17, 2025 | May 6, 2025 | Jun 12, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Apr 17, 2025
Added
May 6, 2025
Modified
Jun 12, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
can: peak_usb: fix use after free bugs
After calling peak_usb_netif_rx_ni(skb), dereferencing skb is unsafe.
Especially, the can_frame cf which aliases skb memory is accessed
after the peak_usb_netif_rx_ni().
Reordering the lines solves the issue.
Solution(s)
ubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-aws-5-4ubuntu-upgrade-linux-aws-fipsubuntu-upgrade-linux-aws-hweubuntu-upgrade-linux-azureubuntu-upgrade-linux-azure-4-15ubuntu-upgrade-linux-azure-5-4ubuntu-upgrade-linux-azure-fipsubuntu-upgrade-linux-fipsubuntu-upgrade-linux-gcpubuntu-upgrade-linux-gcp-4-15ubuntu-upgrade-linux-gcp-5-4ubuntu-upgrade-linux-gcp-fipsubuntu-upgrade-linux-hweubuntu-upgrade-linux-hwe-5-4ubuntu-upgrade-linux-kvmubuntu-upgrade-linux-oracleubuntu-upgrade-linux-oracle-5-4ubuntu-upgrade-linux-raspiubuntu-upgrade-linux-raspi-5-4
References
- CVE-2021-47670
- https://attackerkb.com/topics/CVE-2021-47670
- URL-https://git.kernel.org/linus/50aca891d7a554db0901b245167cd653d73aaa71
- URL-https://git.kernel.org/stable/c/50aca891d7a554db0901b245167cd653d73aaa71
- URL-https://git.kernel.org/stable/c/5408824636fa0dfedb9ecb0d94abd573131bfbbe
- URL-https://git.kernel.org/stable/c/ddd1416f44130377798c1430b76503513b7497c2
- URL-https://git.kernel.org/stable/c/ec939c13c3fff2114479769c8380b7f1a54feca9
- URL-https://www.cve.org/CVERecord?id=CVE-2021-47670

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