CVE-2025-68224

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> scsi: core: Fix a regression triggered by scsi_host_busy()<br /> <br /> Commit 995412e23bb2 ("blk-mq: Replace tags-&gt;lock with SRCU for tag<br /> iterators") introduced the following regression:<br /> <br /> Call trace:<br /> __srcu_read_lock+0x30/0x80 (P)<br /> blk_mq_tagset_busy_iter+0x44/0x300<br /> scsi_host_busy+0x38/0x70<br /> ufshcd_print_host_state+0x34/0x1bc<br /> ufshcd_link_startup.constprop.0+0xe4/0x2e0<br /> ufshcd_init+0x944/0xf80<br /> ufshcd_pltfrm_init+0x504/0x820<br /> ufs_rockchip_probe+0x2c/0x88<br /> platform_probe+0x5c/0xa4<br /> really_probe+0xc0/0x38c<br /> __driver_probe_device+0x7c/0x150<br /> driver_probe_device+0x40/0x120<br /> __driver_attach+0xc8/0x1e0<br /> bus_for_each_dev+0x7c/0xdc<br /> driver_attach+0x24/0x30<br /> bus_add_driver+0x110/0x230<br /> driver_register+0x68/0x130<br /> __platform_driver_register+0x20/0x2c<br /> ufs_rockchip_pltform_init+0x1c/0x28<br /> do_one_initcall+0x60/0x1e0<br /> kernel_init_freeable+0x248/0x2c4<br /> kernel_init+0x20/0x140<br /> ret_from_fork+0x10/0x20<br /> <br /> Fix this regression by making scsi_host_busy() check whether the SCSI<br /> host tag set has already been initialized. tag_set-&gt;ops is set by<br /> scsi_mq_setup_tags() just before blk_mq_alloc_tag_set() is called. This<br /> fix is based on the assumption that scsi_host_busy() and<br /> scsi_mq_setup_tags() calls are serialized. This is the case in the UFS<br /> driver.