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Change History

In the Linux kernel, the following vulnerability has been resolved:

scsi: efct: Fix possible memleak in efct_device_init()

In efct_device_init(), when efct_scsi_reg_fc_transport() fails,
efct_scsi_tgt_driver_exit() is not called to release memory for
efct_scsi_tgt_driver_init() and causes memleak:

unreferenced object 0xffff8881020ce000 (size 2048):
  comm "modprobe", pid 465, jiffies 4294928222 (age 55.872s)
  backtrace:
    [<0000000021a1ef1b>] kmalloc_trace+0x27/0x110
    [<000000004c3ed51c>] target_register_template+0x4fd/0x7b0 [target_core_mod]
    [<00000000f3393296>] efct_scsi_tgt_driver_init+0x18/0x50 [efct]
    [<00000000115de533>] 0xffffffffc0d90011
    [<00000000d608f646>] do_one_initcall+0xd0/0x4e0
    [<0000000067828cf1>] do_init_module+0x1cc/0x6a0
    ...

https://git.kernel.org/stable/c/038359eeccffaf0de4c1c9c51ee19cc5649619a1

https://git.kernel.org/stable/c/0c6e6bb30229b1297ac0fd7ede2941d2322fc736

https://git.kernel.org/stable/c/bb0cd225dd37df1f4a22e36dad59ff33178ecdfc

https://git.kernel.org/stable/c/c7e96168a8ca3be96c4959475164bef31115f07e