Vulnerability details

In the Linux kernel, the following vulnerability has been resolved: scsi: hisi_sas: Add slave_destroy interface for v3 hw WARNING is triggered when executing link reset of remote PHY and rmmod SAS driver simultaneously. Following is the WARNING log: WARNING: CPU: 61 PID: 21818 at drivers/base/core.c:1347 __device_links_no_driver+0xb4/0xc0 Call trace: __device_links_no_driver+0xb4/0xc0 device_links_driver_cleanup+0xb0/0xfc __device_release_driver+0x198/0x23c device_release_driver+0x38/0x50 bus_remove_device+0x130/0x140 device_del+0x184/0x434 __scsi_remove_device+0x118/0x150 scsi_remove_target+0x1bc/0x240 sas_rphy_remove+0x90/0x94 sas_rphy_delete+0x24/0x3c sas_destruct_devices+0x64/0xa0 [libsas] sas_revalidate_domain+0xe4/0x150 [libsas] process_one_work+0x1e0/0x46c worker_thread+0x15c/0x464 kthread+0x160/0x170 ret_from_fork+0x10/0x20 ---[ end trace 71e059eb58f85d4a ]--- During SAS phy up, link->status is set to DL_STATE_AVAILABLE in device_links_driver_bound, then this setting influences __device_links_no_driver() before driver rmmod and caused WARNING. Add the slave_destroy interface to make sure link is removed after flush workque.

• https://git.kernel.org/stable/c/d664252d414aae17066a2831fe7bfd8f0e27b018
• https://git.kernel.org/stable/c/c305853027c04f34435ca4edace772709d70a4fe
• https://git.kernel.org/stable/c/f8bf667891e92fbe13d02671d4637775ab3118f0
• https://git.kernel.org/stable/c/cb414aff28e18e6f5cff9f87ea31376ed8af317b
• https://git.kernel.org/stable/c/4867dba229292e13fc19ed865ec1839661952ff9
• https://git.kernel.org/stable/c/67b85a88265df19f049241d8c00571a5408f4eeb