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CVE-2025-37757

tipc: fix memory leak in tipc_link_xmit

EPSS 0.2%
In the Linux kernel, the following vulnerability has been resolved: tipc: fix memory leak in tipc_link_xmit In case the backlog transmit queue for system-importance messages is overloaded, tipc_link_xmit() returns -ENOBUFS but the skb list is not purged. This leads to memory leak and failure when a skb is allocated. This commit fixes this issue by purging the skb list before tipc_link_xmit() returns.
Affected products
Linux · Linux

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References
https://git.kernel.org/stable/c/09c2dcda2c551bba30710c33f6ac678ae7395389https://git.kernel.org/stable/c/24e6280cdd7f8d01fc6b9b365fb800c2fb7ea9bbhttps://git.kernel.org/stable/c/69ae94725f4fc9e75219d2d69022029c5b24bc9ahttps://git.kernel.org/stable/c/7c5957f7905b4aede9d7a559d271438f3ca9e852https://git.kernel.org/stable/c/84895f5ce3829d9fc030e5ec2d8729da4c0c9d08https://git.kernel.org/stable/c/a40cbfbb8f95c325430f017883da669b2aa927d4https://git.kernel.org/stable/c/d0e02d3d27a0b4dcb13f954f537ca1dd8f282dcfhttps://git.kernel.org/stable/c/d4d40e437adb376be16b3a12dd5c63f0fa768247https://git.kernel.org/stable/c/ed06675d3b8cd37120b447646d53f7cd3e6fcd63https://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlhttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html