UBUNTU-CVE-2026-74692

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix TOCTOU race between smclistenout and listener close smclistenout reads lsmc-sk.skstate without the listener lock, then acquires locksocknested only after the check passes. This opens a window where smccloseactive can...

CVE-2026-23450

A flaw was found in the Linux kernel's net/smc component. A remote attacker could exploit a race condition during the concurrent closing of an SMC listen socket. This could lead to a NULL pointer dereference or a use-after-free vulnerability in the smctcpsynrecvsock function, potentially causing ...

kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match()

A flaw was found in the Linux kernel’s SMC Shared Memory Communication module: in smcclcprfxmatch, the function is called from smclistenwork without proper RCU or RTNL protection. The code previously used skdstgetsk-dev, which can lead to a use-after-free UAF condition if the sk’s destination is...

CVE-2024-53161

CVE-2024-53161 is tied to the Linux kernel EDAC/bluefield issue: the 64-bit get-DIMM-info SMC argument used mem_ctrl_idx left-shifted by 16 and OR’d with the DIMM index; with mem_ctrl_idx treated as 32-bit this can truncate the upper 16 bits, risking data loss. The advisory states the mem_ctrl_id...