Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: vxlan: re-fetch eth header after route_shortcircuit() Before route_shortcircuit(), the eth header pointer is cached from eth_hdr(skb). Inside route_shortcircuit(), pskb_may_pull() can be called, which may reallocate skb->head. In this case, returning to vxlan_xmit() leaves the cached eth pointer pointing to freed memory, leading to a use-after-free when dereferencing eth->h_dest. Fix this by updating eth = eth_hdr(skb) after calling route_shortcircuit().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ae8840825605f36f98f247323edc150e761cb64e before 6375093eb45cd7d89f1945f939eeae3b29d79f56; affected ae8840825605f36f98f247323edc150e761cb64e before 1b7f7b653e3557690047c62f03b80a24ea5a58a5; affected ae8840825605f36f98f247323edc150e761cb64e before bf045341dfb3e767f0ff94cf240ce3c371973bd4; affected ae8840825605f36f98f247323edc150e761cb64e before 2355c8c26d2aa1b4385b369e67202e47d460d555; affected ae8840825605f36f98f247323edc150e761cb64e before 1511631b7cfc4152b10a0a9d04c7a0bf2ddf4585; affected ae8840825605f36f98f247323edc150e761cb64e before 1235e017aa11cf01e91b613c4c5ed6aa28934fff; affected ae8840825605f36f98f247323edc150e761cb64e before c9dceac9e1c7c772c43c732fc0d325e72835801a; affected ae8840825605f36f98f247323edc150e761cb64e before 1395a676ec15a0a02a2a6d86602324f2d5fd41d5 |
| Linux / Linux | affected 3.10; unaffected 0 before 3.10; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.151 through 6.6.*; unaffected 6.12.103 through 6.12.*; unaffected 6.18.44 through 6.18.*; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/6375093eb45cd7d89f1945f939eeae3b29d79f56
- https://git.kernel.org/stable/c/1b7f7b653e3557690047c62f03b80a24ea5a58a5
- https://git.kernel.org/stable/c/bf045341dfb3e767f0ff94cf240ce3c371973bd4
- https://git.kernel.org/stable/c/2355c8c26d2aa1b4385b369e67202e47d460d555
- https://git.kernel.org/stable/c/1511631b7cfc4152b10a0a9d04c7a0bf2ddf4585
- https://git.kernel.org/stable/c/1235e017aa11cf01e91b613c4c5ed6aa28934fff
- https://git.kernel.org/stable/c/c9dceac9e1c7c772c43c732fc0d325e72835801a
- https://git.kernel.org/stable/c/1395a676ec15a0a02a2a6d86602324f2d5fd41d5
ADP enrichment
No English description supplied.
No references supplied.