CVE-2024-49982

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.

• linux linux kernel (>= 5.10.214 < 5.10.227) • linux linux kernel (>= 5.15.153 < 5.15.168) • linux linux kernel (>= 6.1.83 < 6.1.113) • linux linux kernel (>= 6.6.23 < 6.6.55) • linux linux kernel (>= 6.7.11 < 6.8.2) • linux linux kernel (>= 6.9 < 6.10.14) • linux linux kernel (>= 6.11 < 6.11.3) • linux linux kernel 4.19.311 • linux linux kernel 5.4.273 • linux linux kernel 6.12