syzbot


KASAN: use-after-free Read in hci_chan_del
Status: upstream: reported C repro on 2020/08/03 13:37
Reported-by: syzbot+985dfa65ff9ce7b7cd31@syzkaller.appspotmail.com
First crash: 654d, last: 9d01h
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 KASAN: use-after-free Read in hci_chan_del C done 24 309d 655d 1/1 fixed on 2021/08/15 11:28
upstream KASAN: use-after-free Read in hci_chan_del C done done 87 376d 655d 0/22 upstream: reported C repro on 2020/08/02 20:45

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 2022/05/11 09:18 linux-4.14.y e3a56aaade89 6bfdbe89 .config log report syz C
ci2-linux-4-14 2022/04/09 19:19 linux-4.14.y 74766a973637 6bfdbe89 .config log report syz C
ci2-linux-4-14 2022/03/10 13:47 linux-4.14.y c9fcc1545c3b 6bfdbe89 .config log report syz C
ci2-linux-4-14 2022/02/08 13:18 linux-4.14.y b86ee2b7ae42 6bfdbe89 .config log report syz C
ci2-linux-4-14 2022/01/09 12:45 linux-4.14.y bfdef05c8da4 6bfdbe89 .config log report syz C
ci2-linux-4-14 2021/12/10 12:21 linux-4.14.y c01d4d1b885d 6bfdbe89 .config log report syz C
ci2-linux-4-14 2021/11/10 11:52 linux-4.14.y 0447aa205abe 6bfdbe89 .config log report syz C
ci2-linux-4-14 2021/10/11 11:27 linux-4.14.y ed99bf0e81b5 6bfdbe89 .config log report syz C
ci2-linux-4-14 2021/09/11 10:55 linux-4.14.y f96eb53cbd76 6bfdbe89 .config log report syz C
ci2-linux-4-14 2021/08/12 10:25 linux-4.14.y 46914f96189b 6bfdbe89 .config log report syz C
ci2-linux-4-14 2021/07/13 09:56 linux-4.14.y 4e68c9b0763f 6bfdbe89 .config log report syz C
ci2-linux-4-14 2021/06/13 09:21 linux-4.14.y 3d3abdc8ebd3 6bfdbe89 .config log report syz C
ci2-linux-4-14 2021/03/21 00:36 linux-4.14.y cb83ddcd5332 6bfdbe89 .config log report syz C
ci2-linux-4-14 2021/01/01 07:40 linux-4.14.y 1752938529c6 6bfdbe89 .config log report syz C
ci2-linux-4-14 2020/10/28 15:52 linux-4.14.y 5b7a52cd2eef 6bfdbe89 .config log report syz C
ci2-linux-4-14 2020/09/09 07:12 linux-4.14.y 2f166cdcf8a9 70301872 .config log report syz C
Crashes (21):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2020/09/28 15:30 linux-4.14.y cbfa1702aaf6 6bfdbe89 .config log report syz C
ci2-linux-4-14 2020/08/10 05:33 linux-4.14.y 14b58326976d 70301872 .config log report syz C
ci2-linux-4-14 2020/08/08 08:14 linux-4.14.y 14b58326976d ff51e522 .config log report syz C
ci2-linux-4-14 2020/08/07 04:15 linux-4.14.y ca4f2c56d416 cb436c69 .config log report syz C
ci2-linux-4-14 2020/08/06 18:29 linux-4.14.y ca4f2c56d416 4ca1c0ea .config log report syz C
ci2-linux-4-14 2020/08/06 08:14 linux-4.14.y ca4f2c56d416 0487ea6f .config log report syz C
ci2-linux-4-14 2020/08/10 05:02 linux-4.14.y 14b58326976d 70301872 .config log report syz
ci2-linux-4-14 2020/08/09 05:25 linux-4.14.y 14b58326976d f721e4a0 .config log report syz
ci2-linux-4-14 2020/08/06 17:37 linux-4.14.y ca4f2c56d416 4ca1c0ea .config log report syz
ci2-linux-4-14 2020/08/06 14:38 linux-4.14.y ca4f2c56d416 4ca1c0ea .config log report syz
ci2-linux-4-14 2020/08/06 13:40 linux-4.14.y ca4f2c56d416 4ca1c0ea .config log report syz
ci2-linux-4-14 2020/08/04 08:45 linux-4.14.y 7f2c5eb458b8 96dd3623 .config log report syz
ci2-linux-4-14 2020/08/03 19:26 linux-4.14.y 7f2c5eb458b8 96dd3623 .config log report syz
ci2-linux-4-14 2020/08/03 13:37 linux-4.14.y 7f2c5eb458b8 96dd3623 .config log report syz
ci2-linux-4-14 2021/05/14 08:53 linux-4.14.y 7d7d1c0ab3eb 8bdd5343 .config log report info KASAN: use-after-free Read in hci_chan_del
ci2-linux-4-14 2021/05/10 18:56 linux-4.14.y 7d7d1c0ab3eb ca873091 .config log report info KASAN: use-after-free Read in hci_chan_del
ci2-linux-4-14 2021/04/19 13:06 linux-4.14.y cf256fbcbe34 50f523d7 .config log report info KASAN: use-after-free Read in hci_chan_del
ci2-linux-4-14 2021/02/19 00:14 linux-4.14.y 2c8a3fceddf0 14052202 .config log report info KASAN: use-after-free Read in hci_chan_del
ci2-linux-4-14 2021/01/03 16:34 linux-4.14.y 1752938529c6 79264ae3 .config log report info
ci2-linux-4-14 2020/12/02 07:18 linux-4.14.y 87335852c5d9 c42a35e9 .config log report info
ci2-linux-4-14 2020/11/17 03:40 linux-4.14.y 27ce4f2a6817 1bf9a662 .config log report info