CVE-2022-49807

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix a memory leak in nvmet_auth_set_key When changing dhchap secrets we need to release the old secrets as well. kmemleak complaint: -- unreferenced object 0xffff8c7f44ed8180 (size 64): comm "check", pid 7304, jiffies 4295686133 (age 72034.246s) hex dump (first 32 bytes): 44 48 48 43 2d 31 3a 30 30 3a 4c 64 4c 4f 64 71 DHHC-1:00:LdLOdq 79 56 69 67 77 48 55 32 6d 5a 59 4c 7a 35 59 38 yVigwHU2mZYLz5Y8 backtrace: [ ] kstrdup+0x2e/0x60 [ ] 0xffffffffc0e07ee6 [ ] 0xffffffffc0dff783 [ ] configfs_write_iter+0xb1/0x120 [ ] vfs_write+0x2be/0x3c0 [ ] ksys_write+0x5f/0xe0 [ ] do_syscall_64+0x38/0x90 [ ] entry_SYSCALL_64_after_hwframe+0x63/0xcd