KASAN: slab-out-of-bounds Read in fl6_update_dst
Status: fixed on 2020/07/17 17:58
Fix commit: bb986a50 seg6: fix seg6_validate_srh() to avoid slab-out-of-bounds
First crash: 92d, last: 47d

Cause bisection: introduced by (bisect log):

commit 0cb7498f234e4e7d75187a8cae6c7c2053f2488a
Author: Ahmed Abdelsalam <>
Date: Mon May 4 14:42:11 2020 +0000

  seg6: fix SRH processing to comply with RFC8754

Crash: KASAN: slab-out-of-bounds Read in fl6_update_dst (log)
Repro: C syz .config

Sample crash report:

Crashes (43):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-root 2020/05/23 02:23 upstream 051143e1 9682898d .config log report syz C,,,,,
ci-upstream-kasan-gce-smack-root 2020/05/22 21:42 upstream 051143e1 9682898d .config log report syz C,,,,,
ci-upstream-kasan-gce-selinux-root 2020/05/20 21:14 upstream 115a5416 1255f02a .config log report syz C,,,,,
ci-upstream-kasan-gce-smack-root 2020/05/20 08:03 upstream 3c9e6656 67fa1f59 .config log report syz C,,,,,
ci-upstream-kasan-gce 2020/05/12 00:23 upstream 152036d1 9eb09c40 .config log report syz C,,,,,
ci-upstream-kasan-gce-root 2020/05/11 16:14 upstream 2ef96a5b f8f57555 .config log report syz C,,,,,
ci-upstream-net-this-kasan-gce 2020/05/11 17:53 net e8a1b0ef f8f57555 .config log report syz C,,,,,
ci-upstream-net-kasan-gce 2020/05/11 18:06 net-next a6f0b26d f8f57555 .config log report syz C,,,,,
ci-upstream-kasan-gce-selinux-root 2020/05/23 05:48 upstream 051143e1 9682898d .config log report syz,,,,,
ci-upstream-kasan-gce 2020/05/15 20:23 upstream 1ae7efb3 d7f9fffa .config log report syz,,,,,
ci-upstream-kasan-gce-386 2020/05/15 20:17 upstream 1ae7efb3 d7f9fffa .config log report syz,,,,,
ci-upstream-net-this-kasan-gce 2020/05/15 20:22 net 207b584d d7f9fffa .config log report syz,,,,,
ci-upstream-kasan-gce 2020/06/24 21:30 upstream 7ae77150 54566aff .config log report,,,,,
ci-upstream-kasan-gce-smack-root 2020/06/18 11:14 upstream 7ae77150 d45a4d69 .config log report,,,,,
ci-upstream-kasan-gce-root 2020/06/09 01:41 upstream 7ae77150 7604bb03 .config log report,,,,,
ci-upstream-kasan-gce-selinux-root 2020/06/07 02:01 upstream 7ae77150 e6b89e4e .config log report,,,,,
ci-upstream-kasan-gce 2020/06/05 11:12 upstream 435faf5c 2420d1bc .config log report,,,,,
ci-upstream-kasan-gce 2020/06/03 20:34 upstream d6f9469a a5ce5de0 .config log report,,,,,
ci-upstream-kasan-gce 2020/05/29 06:28 upstream 75caf310 d19ed305 .config log report,,,,,
ci-upstream-kasan-gce 2020/05/28 19:18 upstream b0c3ba31 0d951763 .config log report,,,,,
ci-upstream-kasan-gce 2020/05/26 00:54 upstream 9cb1fd0e 30927cd7 .config log report,,,,,
ci-upstream-kasan-gce 2020/05/20 08:22 upstream 03fb3aca 67fa1f59 .config log report,,,,,
ci-upstream-kasan-gce-root 2020/05/11 15:51 upstream 2ef96a5b f8f57555 .config log report,,,,,
ci-upstream-kasan-gce-386 2020/06/16 13:56 upstream 7ae77150 baca2611 .config log report,,,,,
ci-upstream-kasan-gce-386 2020/05/22 08:43 upstream d2f8825a 5afa2ddd .config log report,,,,,
ci-upstream-kasan-gce-386 2020/05/20 21:48 upstream 115a5416 1255f02a .config log report,,,,,
ci-upstream-net-this-kasan-gce 2020/05/29 01:14 net 2b86cb82 0d951763 .config log report,,,,,
ci-upstream-net-this-kasan-gce 2020/05/18 06:32 net e3f2d557 37bccd4e .config log report,,,,,
ci-upstream-net-this-kasan-gce 2020/05/14 21:19 net 9de5d235 2d572622 .config log report,,,,,
ci-upstream-net-this-kasan-gce 2020/05/12 17:35 net 1abfb181 160c7698 .config log report,,,,,
ci-upstream-net-kasan-gce 2020/06/26 07:59 net-next cb8e59cc aea82c00 .config log report,,,,,
ci-upstream-net-kasan-gce 2020/06/18 23:32 net-next cb8e59cc d45a4d69 .config log report,,,,,
ci-upstream-net-kasan-gce 2020/06/17 11:33 net-next cb8e59cc b9f3810b .config log report,,,,,
ci-upstream-net-kasan-gce 2020/06/10 10:03 net-next cb8e59cc 860c4de9 .config log report,,,,,
ci-upstream-net-kasan-gce 2020/06/04 15:32 net-next cb8e59cc b0d1c0d5 .config log report,,,,,
ci-upstream-net-kasan-gce 2020/06/02 15:00 net-next 9a25c1df 52fd7b7d .config log report,,,,,
ci-upstream-net-kasan-gce 2020/05/31 03:27 net-next 4300c7e7 6f3e1c7c .config log report,,,,,
ci-upstream-net-kasan-gce 2020/05/28 02:45 net-next 50ce4c09 142a0957 .config log report,,,,,
ci-upstream-net-kasan-gce 2020/05/25 15:10 net-next 06ec313e 30927cd7 .config log report,,,,,
ci-upstream-net-kasan-gce 2020/05/24 03:34 net-next 54b9aca0 96c92ad3 .config log report,,,,,
ci-upstream-net-kasan-gce 2020/05/23 01:22 net-next 199671ea 9682898d .config log report,,,,,
ci-upstream-net-kasan-gce 2020/05/22 08:16 net-next 2a330b53 5afa2ddd .config log report,,,,,
ci-upstream-net-kasan-gce 2020/05/13 00:16 net-next 51fa960d a44eb8f7 .config log report,,,,,