CVE-2021-47670 (GCVE-0-2021-47670)
Vulnerability from cvelistv5
Published
2025-04-17 18:01
Modified
2025-05-04 07:15
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/50aca891d7a554db0901b245167cd653d73aaa71Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5408824636fa0dfedb9ecb0d94abd573131bfbbePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ddd1416f44130377798c1430b76503513b7497c2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ec939c13c3fff2114479769c8380b7f1a54feca9Patch
Impacted products
Vendor Product Version
Linux Linux Version: 0a25e1f4f18566b750ebd3ae995af64e23111e63
Version: 0a25e1f4f18566b750ebd3ae995af64e23111e63
Version: 0a25e1f4f18566b750ebd3ae995af64e23111e63
Version: 0a25e1f4f18566b750ebd3ae995af64e23111e63
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   Linux Linux Version: 4.0
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