CVE-2025-68229

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> scsi: target: tcm_loop: Fix segfault in tcm_loop_tpg_address_show()<br /> <br /> If the allocation of tl_hba-&gt;sh fails in tcm_loop_driver_probe() and we<br /> attempt to dereference it in tcm_loop_tpg_address_show() we will get a<br /> segfault, see below for an example. So, check tl_hba-&gt;sh before<br /> dereferencing it.<br /> <br /> Unable to allocate struct scsi_host<br /> BUG: kernel NULL pointer dereference, address: 0000000000000194<br /> #PF: supervisor read access in kernel mode<br /> #PF: error_code(0x0000) - not-present page<br /> PGD 0 P4D 0<br /> Oops: 0000 [#1] PREEMPT SMP NOPTI<br /> CPU: 1 PID: 8356 Comm: tokio-runtime-w Not tainted 6.6.104.2-4.azl3 #1<br /> Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 09/28/2024<br /> RIP: 0010:tcm_loop_tpg_address_show+0x2e/0x50 [tcm_loop]<br /> ...<br /> Call Trace:<br /> <br /> configfs_read_iter+0x12d/0x1d0 [configfs]<br /> vfs_read+0x1b5/0x300<br /> ksys_read+0x6f/0xf0<br /> ...