ioctl_sg01 testing failure on a specific usb storage

[jianhuilee]

$ ./ioctl_sg01
tst_test.c:1733: TINFO: LTP version: 20240524
tst_test.c:1617: TINFO: Timeout per run is 1h 00m 30s
ioctl_sg01.c:83: TINFO: Found SCSI device /dev/sg0

ioctl_sg01.c:123: TFAIL: Kernel memory leaked

HINT: You _MAY_ be missing kernel fixes:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a45b599ad808

HINT: You _MAY_ be vulnerable to CVE(s):

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000204

Summary:
passed   0
failed   1
broken   0
skipped  0
warnings 0
$ sudo sginfo -A /dev/sg0
INQUIRY response (cmd: 0x12)
----------------------------
Device Type 0
Vendor: USB
Product: SanDisk 3.2Gen1
Revision level: 1.00

after investigating further, it seems that the device returns some structured data back after each consecutive ioctl tests:

iteration	buffer[0]	buffer[1]	buffer[2]	buffer[3]	buffer[4]	buffer[5]	buffer[6]	buffer[7]	...
1	0x55(U)	0x53(S)	0x42(B)	0x53(S)	0x21(!)	0x39(9)	0x1()	0x8()	0x0
2	0x55(U)	0x53(S)	0x42(B)	0x53(S)	0x22(")	0x39(9)	0x1()	0x8()	0x0
3	0x55(U)	0x53(S)	0x42(B)	0x53(S)	0x23(#)	0x39(9)	0x1()	0x8()	0x0
4	0x55(U)	0x53(S)	0x42(B)	0x53(S)	0x24($)	0x39(9)	0x1()	0x8)	0x0
5	0x55(U)	0x53(S)	0x42(B)	0x53(S)	0x25(%)	0x39(9)	0x1()	0x8()	0x0
...

looking into ioctl_sg01.c, i think i could assume the test scsi command is TEST UNIT READY since all the fields are initialized to zero. for this command, i did not find what the return buffer should be in the spec.

so i'm wondering if TEST UNIT READY is an appropriate command for this test case or it's a special usb storage? any thoughts? thanks.