Description
In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Fix possible resource leaks in mpt3sas_transport_port_add() In mpt3sas_transport_port_add(), if sas_rphy_add() returns error, sas_rphy_free() needs be called to free the resource allocated in sas_end_device_alloc(). Otherwise a kernel crash will happen: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000108 CPU: 45 PID: 37020 Comm: bash Kdump: loaded Tainted: G W 6.1.0-rc1+ #189 pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : device_del+0x54/0x3d0 lr : device_del+0x37c/0x3d0 Call trace: device_del+0x54/0x3d0 attribute_container_class_device_del+0x28/0x38 transport_remove_classdev+0x6c/0x80 attribute_container_device_trigger+0x108/0x110 transport_remove_device+0x28/0x38 sas_rphy_remove+0x50/0x78 [scsi_transport_sas] sas_port_delete+0x30/0x148 [scsi_transport_sas] do_sas_phy_delete+0x78/0x80 [scsi_transport_sas] device_for_each_child+0x68/0xb0 sas_remove_children+0x30/0x50 [scsi_transport_sas] sas_rphy_remove+0x38/0x78 [scsi_transport_sas] sas_port_delete+0x30/0x148 [scsi_transport_sas] do_sas_phy_delete+0x78/0x80 [scsi_transport_sas] device_for_each_child+0x68/0xb0 sas_remove_children+0x30/0x50 [scsi_transport_sas] sas_remove_host+0x20/0x38 [scsi_transport_sas] scsih_remove+0xd8/0x420 [mpt3sas] Because transport_add_device() is not called when sas_rphy_add() fails, the device is not added. When sas_rphy_remove() is subsequently called to remove the device in the remove() path, a NULL pointer dereference happens.
Product status
f92363d12359498f9a9960511de1a550f0ec41c2 before d60000cb1195a464080b0efb4949daf7594e0020
f92363d12359498f9a9960511de1a550f0ec41c2 before ce1a69cc85006b494353911b35171da195d79e25
f92363d12359498f9a9960511de1a550f0ec41c2 before 6a92129c8f999ff5b122c100ce7f625eb3e98c4b
f92363d12359498f9a9960511de1a550f0ec41c2 before 6f6768e2fc8638fabdd8802c2ef693d7aef01db1
f92363d12359498f9a9960511de1a550f0ec41c2 before d17bca3ddfe507874cb826d32721552da12e741f
f92363d12359498f9a9960511de1a550f0ec41c2 before 78316e9dfc24906dd474630928ed1d3c562b568e
3.8
Any version before 3.8
5.4.229
5.10.163
5.15.86
6.0.16
6.1.2
6.2
References
git.kernel.org/...c/d60000cb1195a464080b0efb4949daf7594e0020
git.kernel.org/...c/ce1a69cc85006b494353911b35171da195d79e25
git.kernel.org/...c/6a92129c8f999ff5b122c100ce7f625eb3e98c4b
git.kernel.org/...c/6f6768e2fc8638fabdd8802c2ef693d7aef01db1
git.kernel.org/...c/d17bca3ddfe507874cb826d32721552da12e741f
git.kernel.org/...c/78316e9dfc24906dd474630928ed1d3c562b568e
