syzbot


KASAN: use-after-free Write in __alloc_skb (2)
Status: upstream: reported C repro on 2020/07/24 01:04
Reported-by: syzbot+4fcc32fe7c89dc09679d@syzkaller.appspotmail.com
First crash: 428d, last: 2d16h
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 KASAN: use-after-free Write in __alloc_skb C done 2 621d 689d 1/1 fixed on 2020/02/11 15:16
upstream KASAN: use-after-free Write in __alloc_skb (3) C done inconclusive 2 53d 422d 0/22 upstream: reported C repro on 2020/07/29 18:24
upstream KASAN: use-after-free Write in __alloc_skb (2) C done 7 635d 651d 16/22 fixed on 2020/02/18 14:31
upstream KASAN: use-after-free Write in __alloc_skb 2 676d 681d 0/22 closed as invalid on 2019/12/08 05:44
linux-4.14 KASAN: use-after-free Write in __alloc_skb C done 1 621d 651d 1/1 fixed on 2020/02/14 21:56

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/09/22 10:46 linux-4.14.y 8ea4f73cfa7e 70c104a1 .config log report syz C
ci2-linux-4-14 2021/08/23 09:58 linux-4.14.y 162b95d01320 70c104a1 .config log report syz C
ci2-linux-4-14 2021/07/24 09:26 linux-4.14.y 964f3712e6a7 70c104a1 .config log report syz C
ci2-linux-4-14 2021/06/24 08:54 linux-4.14.y cfb41ef9deb1 70c104a1 .config log report syz C
ci2-linux-4-14 2021/05/25 01:17 linux-4.14.y 96afcb20f36f 70c104a1 .config log report syz C
ci2-linux-4-14 2021/04/24 23:33 linux-4.14.y cf256fbcbe34 70c104a1 .config log report syz C
ci2-linux-4-14 2021/03/25 15:47 linux-4.14.y 670d6552eda8 70c104a1 .config log report syz C
ci2-linux-4-14 2021/02/23 14:08 linux-4.14.y 3242aa3a635c 70c104a1 .config log report syz C
ci2-linux-4-14 2021/01/20 06:22 linux-4.14.y 2762b48e9611 70c104a1 .config log report syz C
ci2-linux-4-14 2020/12/21 05:43 linux-4.14.y 3f2ecb86cb90 70c104a1 .config log report syz C
ci2-linux-4-14 2020/11/21 05:16 linux-4.14.y 8961076ed318 70c104a1 .config log report syz C
ci2-linux-4-14 2020/10/22 04:29 linux-4.14.y 5b7a52cd2eef 70c104a1 .config log report syz C
ci2-linux-4-14 2020/09/22 02:00 linux-4.14.y cbfa1702aaf6 70c104a1 .config log report syz C
ci2-linux-4-14 2020/08/23 01:34 linux-4.14.y 6a24ca2506d6 70c104a1 .config log report syz C
Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2020/07/24 01:03 linux-4.14.y 69b94dd6dcd1 70c104a1 .config log report syz C