CVE-2024-49982
Description
In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in more places For fixing CVE-2023-6270, f98364e92662 ("aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts") makes tx() calling dev_put() instead of doing in aoecmd_cfg_pkts(). It avoids that the tx() runs into use-after-free. Then Nicolai Stange found more places in aoe have potential use-after-free problem with tx(). e.g. revalidate(), aoecmd_ata_rw(), resend(), probe() and aoecmd_cfg_rsp(). Those functions also use aoenet_xmit() to push packet to tx queue. So they should also use dev_hold() to increase the refcnt of skb->dev. On the other hand, moving dev_put() to tx() causes that the refcnt of skb->dev be reduced to a negative value, because corresponding dev_hold() are not called in revalidate(), aoecmd_ata_rw(), resend(), probe(), and aoecmd_cfg_rsp(). This patch fixed this issue.
How to fix
- linux linux_kernel5.10.227, 5.15.168, 6.1.113, 6.6.55, 6.8.2, 6.10.14, 6.11.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.10.214 ≤ v < 5.10.227, 5.15.153 ≤ v < 5.15.168, 6.1.83 ≤ v < 6.1.113, 6.6.23 ≤ v < 6.6.55, 6.7.11 ≤ v < 6.8.2, 6.9 ≤ v < 6.10.14, 6.11 ≤ v < 6.11.3, 4.19.311, 5.4.273, 6.12 | 5.10.227, 5.15.168, 6.1.113, 6.6.55, 6.8.2, 6.10.14, 6.11.3 |
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