CVE-2021-47236

2024-05-2115:15:12

Debian Security Bug Tracker

security-tracker.debian.org

linux kernel

net cdc_eem

skb transmit

vulnerability

usbnet

fix

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.2%

JSON

In the Linux kernel, the following vulnerability has been resolved: net: cdc_eem: fix tx fixup skb leak when usbnet transmit a skb, eem fixup it in eem_tx_fixup(), if skb_copy_expand() failed, it return NULL, usbnet_start_xmit() will have no chance to free original skb. fix it by free orginal skb in eem_tx_fixup() first, then check skb clone status, if failed, return NULL to usbnet.

OSVersionArchitecturePackageVersionFilename
Debian12alllinux< 5.10.46-1linux_5.10.46-1_all.deb
Debian11alllinux< 5.10.46-1linux_5.10.46-1_all.deb
Debian10alllinux< 4.19.208-1linux_4.19.208-1_all.deb
Debian999alllinux< 5.10.46-1linux_5.10.46-1_all.deb
Debian13alllinux< 5.10.46-1linux_5.10.46-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	linux	< 5.10.46-1	linux_5.10.46-1_all.deb
Debian	11	all	linux	< 5.10.46-1	linux_5.10.46-1_all.deb
Debian	10	all	linux	< 4.19.208-1	linux_4.19.208-1_all.deb
Debian	999	all	linux	< 5.10.46-1	linux_5.10.46-1_all.deb
Debian	13	all	linux	< 5.10.46-1	linux_5.10.46-1_all.deb