UBUNTU-CVE-2024-26898
In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts This patch is against CVE-2023-6270. The description of cve is: A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution. In aoecmd_cfg_pkts(), it always calls dev_put(ifp) when skb initial code is finished. But the net_device ifp will still be used in later tx()->dev_queue_xmit() in kthread. Which means that the dev_put(ifp) should NOT be called in the success path of skb initial code in aoecmd_cfg_pkts(). Otherwise tx() may run into use-after-free because the net_device is freed. This patch removed the dev_put(ifp) in the success path in aoecmd_cfg_pkts(), and added dev_put() after skb xmit in tx().
02 / AFFECTED SOFTWARE
Affected packages
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46 explicit affected versions
120 explicit affected versions
140 explicit affected versions
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14 explicit affected versions
81 explicit affected versions
4 explicit affected versions
70 explicit affected versions
9 explicit affected versions
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43 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts This patch is against CVE-2023-6270. The description of cve is: A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution. In aoecmd_cfg_pkts(), it always calls dev_put(ifp) when skb initial code is finished. But the net_device ifp will still be used in later tx()->dev_queue_xmit() in kthread. Which means that the dev_put(ifp) should NOT be called in the success path of skb initial code in aoecmd_cfg_pkts(). Otherwise tx() may run into use-after-free because the net_device is freed. This patch removed the dev_put(ifp) in the success path in aoecmd_cfg_pkts(), and added dev_put() after skb xmit in tx().
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/f98364e926626c678fb4b9004b75cacf92ff0662
- https://git.kernel.org/stable/c/079cba4f4e307c69878226fdf5228c20aa1c969c
- https://git.kernel.org/stable/c/1a54aa506b3b2f31496731039e49778f54eee881
- https://git.kernel.org/stable/c/74ca3ef68d2f449bc848c0a814cefc487bf755fa
- https://git.kernel.org/stable/c/7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4
- https://git.kernel.org/stable/c/a16fbb80064634b254520a46395e36b87ca4731e
- https://git.kernel.org/stable/c/ad80c34944d7175fa1f5c7a55066020002921a99
- https://git.kernel.org/stable/c/eb48680b0255a9e8a9bdc93d6a55b11c31262e62
- https://git.kernel.org/stable/c/f98364e926626c678fb4b9004b75cacf92ff0662
- https://git.kernel.org/stable/c/faf0b4c5e00bb680e8e43ac936df24d3f48c8e65
- https://ubuntu.com/security/CVE-2024-26898
- https://ubuntu.com/security/notices/USN-6816-1
- https://ubuntu.com/security/notices/USN-6817-1
- https://ubuntu.com/security/notices/USN-6817-2
- https://ubuntu.com/security/notices/USN-6817-3
- https://ubuntu.com/security/notices/USN-6820-1
- https://ubuntu.com/security/notices/USN-6820-2
- https://ubuntu.com/security/notices/USN-6821-1
- https://ubuntu.com/security/notices/USN-6821-2
- https://ubuntu.com/security/notices/USN-6821-3
- https://ubuntu.com/security/notices/USN-6821-4
- https://ubuntu.com/security/notices/USN-6828-1
- https://ubuntu.com/security/notices/USN-6865-1
- https://ubuntu.com/security/notices/USN-6866-1
- https://ubuntu.com/security/notices/USN-6866-2
- https://ubuntu.com/security/notices/USN-6866-3
- https://ubuntu.com/security/notices/USN-6871-1
- https://ubuntu.com/security/notices/USN-6878-1
- https://ubuntu.com/security/notices/USN-6892-1
- https://ubuntu.com/security/notices/USN-6895-1
- https://ubuntu.com/security/notices/USN-6895-2
- https://ubuntu.com/security/notices/USN-6895-3
- https://ubuntu.com/security/notices/USN-6895-4
- https://ubuntu.com/security/notices/USN-6896-1
- https://ubuntu.com/security/notices/USN-6896-2
- https://ubuntu.com/security/notices/USN-6896-3
- https://ubuntu.com/security/notices/USN-6896-4
- https://ubuntu.com/security/notices/USN-6896-5
- https://ubuntu.com/security/notices/USN-6900-1
- https://ubuntu.com/security/notices/USN-6919-1
- https://www.cve.org/CVERecord?id=CVE-2024-26898