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.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade python3-perfUpgrade kernel-abi-stablelists | Jul 16, 2024 | Feb 28, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade kernelUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python3-perf | Jul 17, 2024 | Feb 28, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 28, 2024 |
| Suse | — | Upgrade kernel-symsUpgrade kernel-develUpgrade kernel-macrosUpgrade kernel-64kb-develUpgrade kernel-preemptUpgrade reiserfs-kmp-defaultUpgrade kernel-zfcpdumpUpgrade kernel-docsUpgrade kernel-default-extraUpgrade kernel-defaultUpgrade kernel-default-baseUpgrade kernel-syms-azureUpgrade kernel-default-manUpgrade kernel-azure-develUpgrade kernel-preempt-develUpgrade kernel-source-azureUpgrade kernel-azure-baseUpgrade kernel-devel-azureUpgrade kernel-obs-buildUpgrade kernel-sourceUpgrade kernel-default-develUpgrade kernel-64kbUpgrade kernel-azure | Aug 9, 2024 | Feb 28, 2024 |
| Ubuntu | — | Upgrade linux-gcp-fipsUpgrade linux-azureUpgrade linux-aws-5.4Upgrade linux-aws-fipsUpgrade linux-raspi-5.4Upgrade linux-azure-5.4Upgrade linux-oracleUpgrade linux-hwe-5.4Upgrade linux-bluefieldUpgrade linux-raspiUpgrade linux-kvmUpgrade linux-gcp-5.4Upgrade linux-azure-fipsUpgrade linux-gcpUpgrade linux-fipsUpgrade linux-awsUpgrade linuxUpgrade linux-gkeopUpgrade linux-oracle-5.4 | Nov 19, 2024 | Feb 28, 2024 |
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