cve-2020-11494 in cve from ubuntu_ltp failed on Groovy/linux

[Kelsey Steele]

Not a regression. Also occurred on 5.8.0-29.31

Test complains about a warning:
  pty04.c:364: TBROK: tst_checkpoint_wait(0, 100000) failed: ETIMEDOUT (110)

45336. 11/26 16:54:32 DEBUG| utils:0153| [stdout] startup='Thu Nov 26 16:49:42 2020'
45337. 11/26 16:54:32 DEBUG| utils:0153| [stdout] tst_test.c:1248: TINFO: Timeout per run is 0h 05m 00s
45338. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:130: TINFO: PTS path is /dev/pts/0
45339. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:207: TINFO: Netdev is sl0
45340. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:216: TINFO: Netdev MTU is 8192 (we set 8192)
45341. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:233: TINFO: Bound netdev 4433 to socket 20
45342. 11/26 16:54:32 DEBUG| utils:0153| [stdout] tst_buffers.c:55: TINFO: Test is using guarded buffers
45343. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:324: TINFO: Reading from socket 20
45344. 11/26 16:54:32 DEBUG| utils:0153| [stdout] tst_buffers.c:55: TINFO: Test is using guarded buffers
45345. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:180: TPASS: Wrote PTY N_SLIP 8 (1)
45346. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:191: TPASS: Wrote PTY N_SLIP 8 (2)
45347. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:328: TPASS: Read netdev N_SLIP 20 (1)
45348. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:364: TBROK: tst_checkpoint_wait(0, 100000) failed: ETIMEDOUT (110)
45349. 11/26 16:54:32 DEBUG| utils:0153| [stdout] tst_test.c:374: TBROK: Reported by child (1530185)
45350. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:306: TBROK: Read 0 of 8191 bytes: ENETDOWN (100)
45351. 11/26 16:54:32 DEBUG| utils:0153| [stdout] pty04.c:196: TPASS: Writing to PTY interrupted by hangup
45352. 11/26 16:54:32 DEBUG| utils:0153| [stdout] tst_test.c:374: TWARN: Reported by child (1530183)
45353. 11/26 16:54:32 DEBUG| utils:0153| [stdout]
45354. 11/26 16:54:32 DEBUG| utils:0153| [stdout] Summary:
45355. 11/26 16:54:32 DEBUG| utils:0153| [stdout] passed 4
45356. 11/26 16:54:32 DEBUG| utils:0153| [stdout] failed 0
45357. 11/26 16:54:32 DEBUG| utils:0153| [stdout] skipped 0
45358. 11/26 16:54:32 DEBUG| utils:0153| [stdout] warnings 1
45359. 11/26 16:54:32 DEBUG| utils:0153| [stdout] tag=cve-2020-11494 stime=1606409382 dur=100 exit=exited stat=6 core=no cu=3671 cs=6324

[Po-Hsu Lin (cypressyew)]

This issue can be found on B-4.15 lowlatency (passed with generic on the very same node)