Mounting an SMB share with multichannel enabled appears to leak all but one
allocations of ses->auth_key.response, at least with ntlmssp auth. This was on
(roughly) bf1028a41ea:
unreferenced object 0xffff88802cefc500 (size 256):
comm "mount.cifs", pid 680, jiffies 4294907522 (age 381.360s)
hex dump (first 32 bytes):
19 68 bf 70 7b a3 b8 00 43 63 8c fa e1 00 90 fb .h.p{...Cc......
1d d8 39 3c 25 d1 d3 f0 a2 4e e4 99 4f 35 9b 2e ..9<%....N..O5..
backtrace:
[<000000006c8d6e81>] setup_ntlmv2_rsp+0x2f4/0x2190
[<000000006cf0d77f>] build_ntlmssp_auth_blob+0x2b/0x10d0
[<00000000300414f8>] SMB2_sess_auth_rawntlmssp_authenticate+0x316/0x7c0
[<000000002ee76096>] SMB2_sess_setup+0x377/0x7b0
[<0000000076fded43>] cifs_setup_session+0x359/0x770
[<00000000f6a70b79>] cifs_get_smb_ses+0xfe1/0x2ae0
[<0000000030763a8d>] mount_get_conns+0x20d/0xec0
[<000000003deb8295>] cifs_mount+0xbe/0x1d00
[<00000000d18bac6c>] cifs_smb3_do_mount+0x26e/0x1330
[<000000000952c786>] legacy_get_tree+0x101/0x1f0
[<00000000f07e0c29>] vfs_get_tree+0x8a/0x2d0
[<00000000edbc514a>] do_mount+0xed7/0x16f0
[<00000000ee452092>] __x64_sys_mount+0x12c/0x1a0
[<00000000a6ccd160>] do_syscall_64+0x56/0xa0
[<000000003143088f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
unreferenced object 0xffff88802a33e500 (size 256):
comm "mount.cifs", pid 680, jiffies 4294907547 (age 381.260s)
hex dump (first 32 bytes):
5f ff 39 9f c0 e9 1e 3b 0a f1 06 9d c7 53 c2 74 _.9....;.....S.t
03 7e 5f 2f 27 f7 a8 84 70 e8 58 e3 91 f6 76 d6 .~_/'...p.X...v.
backtrace:
[<000000006c8d6e81>] setup_ntlmv2_rsp+0x2f4/0x2190
[<000000006cf0d77f>] build_ntlmssp_auth_blob+0x2b/0x10d0
[<00000000300414f8>] SMB2_sess_auth_rawntlmssp_authenticate+0x316/0x7c0
[<000000002ee76096>] SMB2_sess_setup+0x377/0x7b0
[<0000000076fded43>] cifs_setup_session+0x359/0x770
[<000000006bb9ce4c>] cifs_ses_add_channel+0x9bc/0x10a0
[<000000004034ab3b>] cifs_try_adding_channels+0x1f0/0x580
[<000000009ac39b0b>] cifs_mount+0xed1/0x1d00
[<00000000d18bac6c>] cifs_smb3_do_mount+0x26e/0x1330
[<000000000952c786>] legacy_get_tree+0x101/0x1f0
[<00000000f07e0c29>] vfs_get_tree+0x8a/0x2d0
[<00000000edbc514a>] do_mount+0xed7/0x16f0
[<00000000ee452092>] __x64_sys_mount+0x12c/0x1a0
[<00000000a6ccd160>] do_syscall_64+0x56/0xa0
[<000000003143088f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Regards,
~Paul
