CVE-2026-74705 | In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation __skb_udp_tunnel_segment() gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb->head, the saved UDP header pointer is no longer valid. Get the UDP header after the pull to avoid a potential use-after-free.
In the Linux kernel, the following vulnerability has been resolved:
udp: fix potential use-after-free in tunnel segmentation
__skb_udp_tunnel_segment() gets the UDP header before ensuring the
tunnel header is in the skb head. If the pull reallocates skb->head,
the saved UDP header pointer is no longer valid.
Get the UDP header after the pull to avoid a potential use-after-free.
- 🔗 git.kernel.org/stable/c/6a733a38b983d8c2e222f13968209010…
- 🔗 git.kernel.org/stable/c/19d89b13a43640b2da2f277ee462d919…
- 🔗 git.kernel.org/stable/c/b3df61bb745eb5201eac22679a2839d4…
- 🔗 git.kernel.org/stable/c/1ae134c012e10384cdac420b5cc6e061…
- 🔗 git.kernel.org/stable/c/5161e67c561c4f28a5d9335a6e859b02…
- 🔗 git.kernel.org/stable/c/64d322c288577793eedd352b96ef7523…
- 🔗 git.kernel.org/stable/c/588d4a6795d99d080f74ef0b5f391ea8…
- 🔗 git.kernel.org/stable/c/d0f86fb36eb260abd10007b62c9dcc10…
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| Tier | 2026-08-29 | 2026-09-17 |
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CVE-2026-74705 | In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation __skb_udp_tunnel_segment() gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb->head, the saved UDP header pointer is no longer valid. Get the UDP header after the pull to avoid a potential use-after-free.
In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation __skb_udp_tunnel_segment() gets the UDP header before ensuring the tunnel header is in the skb head. If the pull