ipc/shm: serialize orphan cleanup with shm_nattch updates

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UBUNTU-CVE-2026-45913

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mcast: always update mdbnentries for vlan contexts syzbot triggered a warning1 about the number of mdb entries in a context. It turned out that there are multiple ways to trigger that warning today some got added...

多款Qualcomm产品输入验证错误漏洞

The Qualcomm QCA6574AU and others are products of Qualcomm Incorporated Qualcomm, U.S.A. The QCA6574AU is a central processing unit CPU product.The SDX24 is a modem.The SDX55 is a modem. An input validation error vulnerability exists in multiple Qualcomm products, which stems from an integer...