cbcvebase.
CVE-2021-46998
published 2024-02-28

CVE-2021-46998: In the Linux kernel, the following vulnerability has been resolved: ethernet:enic: Fix a use after free bug in enic_hard_start_xmit In enic_hard_start_xmit, it…

PriorityP336high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.24%
15.6th percentile
In the Linux kernel, the following vulnerability has been resolved: ethernet:enic: Fix a use after free bug in enic_hard_start_xmit In enic_hard_start_xmit, it calls enic_queue_wq_skb(). Inside enic_queue_wq_skb, if some error happens, the skb will be freed by dev_kfree_skb(skb). But the freed skb is still used in skb_tx_timestamp(skb). My patch makes enic_queue_wq_skb() return error and goto spin_unlock() incase of error. The solution is provided by Govind. See https://lkml.org/lkml/2021/4/30/961.

Affected

17 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.10.38-1 (bookworm)linux 5.10.38-1 (bookworm)
linuxlinux——
linuxlinux>= fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < 25a87b1f566b5eb2af2857a928f0e2310d90097625a87b1f566b5eb2af2857a928f0e2310d900976
linuxlinux>= fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < f7f6f07774091a6ddd98500b85386c3c6afb30d3f7f6f07774091a6ddd98500b85386c3c6afb30d3
linuxlinux>= fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < 7afdd6aba95c8a526038e7abe283eeac3e4320f17afdd6aba95c8a526038e7abe283eeac3e4320f1
linuxlinux>= fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < 6892396ebf04ea2c021d80e10f4075e014cd7cc36892396ebf04ea2c021d80e10f4075e014cd7cc3
linuxlinux>= fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < d90529392aaf498dafa95d212295d64b2cea4e24d90529392aaf498dafa95d212295d64b2cea4e24
linuxlinux>= fb7516d42478ebc8e2f00efb76ef96f7b68fd8d3 < 643001b47adc844ae33510c4bb93c236667008a3643001b47adc844ae33510c4bb93c236667008a3
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 0 < 5.10.38-15.10.38-1
linuxlinux_kernel>= 4.16 < 4.19.1914.19.191
linuxlinux_kernel>= 4.20 < 5.4.1205.4.120
linuxlinux_kernel>= 5.11 < 5.11.225.11.22
linuxlinux_kernel>= 5.12 < 5.12.55.12.5
linuxlinux_kernel>= 5.5 < 5.10.385.10.38

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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