syzbot


KASAN: slab-out-of-bounds Read in bit_putcs
Status: upstream: reported C repro on 2019/12/03 12:47
Reported-by: syzbot+07e7f57313dc988967db@syzkaller.appspotmail.com
First crash: 898d, last: 363d

Fix bisection: the fix commit could be any of (bisect log):
  8c5ec4a731e1 vt: Fix character height handling with VT_RESIZEX
  9a71ed8da907 vgacon: Record video mode changes with VT_RESIZEX
  17d6c58c5fc5 tty: vt: always invoke vc->vc_sw->con_resize callback
  fd8f21c9d234 video: hgafb: fix potential NULL pointer dereference
  1dfd47b684c2 video: hgafb: correctly handle card detect failure during probe
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: slab-out-of-bounds Read in bit_putcs C done error 343 586d 895d 0/22 upstream: reported C repro on 2019/12/05 16:46
linux-4.14 KASAN: slab-out-of-bounds Read in bit_putcs C 95 5d14h 897d 0/1 upstream: reported C repro on 2019/12/03 16:38
linux-4.14 KASAN: global-out-of-bounds Read in bit_putcs C 241 3d17h 893d 0/1 upstream: reported C repro on 2019/12/07 16:26
linux-4.19 KASAN: global-out-of-bounds Read in bit_putcs C done 214 359d 896d 1/1 fixed on 2021/06/24 08:01

Sample crash report:

Crashes (138):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2020/10/17 23:10 linux-4.19.y ad326970d25c fea47c01 .config log report syz C
ci2-linux-4-19 2020/07/12 10:40 linux-4.19.y dce0f88600e4 115e1930 .config log report syz C
ci2-linux-4-19 2020/04/14 17:44 linux-4.19.y 6dd0e32665e5 3f3c5574 .config log report syz C
ci2-linux-4-19 2019/12/08 09:46 linux-4.19.y fb683b5e3f53 1508f453 .config log report syz C
ci2-linux-4-19 2019/12/03 11:46 linux-4.19.y 174651bdf802 ab342da3 .config log report syz C
ci2-linux-4-19 2021/05/21 06:53 linux-4.19.y 3c8c23092588 3c7fef33 .config log report info KASAN: slab-out-of-bounds Read in bit_putcs
ci2-linux-4-19 2021/05/07 22:25 linux-4.19.y 3c8c23092588 bc5434be .config log report info KASAN: slab-out-of-bounds Read in bit_putcs
ci2-linux-4-19 2021/03/05 18:22 linux-4.19.y dfb571610ba3 4a024a9b .config log report info KASAN: slab-out-of-bounds Read in bit_putcs
ci2-linux-4-19 2021/02/04 09:41 linux-4.19.y 811218eceeaa 624dad51 .config log report info KASAN: slab-out-of-bounds Read in bit_putcs
ci2-linux-4-19 2021/01/21 12:53 linux-4.19.y 43d555d83c3f d4f4eca5 .config log report info KASAN: slab-out-of-bounds Read in bit_putcs
ci2-linux-4-19 2021/01/04 21:06 linux-4.19.y 3207316b3bee 2a28ff1f .config log report info
ci2-linux-4-19 2020/12/17 21:24 linux-4.19.y 13d2ce42de8c 04201c06 .config log report info
ci2-linux-4-19 2020/11/30 00:09 linux-4.19.y 0c88e405c97e a0092f9d .config log report info
ci2-linux-4-19 2020/11/25 20:41 linux-4.19.y 0c88e405c97e 3f581b43 .config log report info
ci2-linux-4-19 2020/11/03 22:35 linux-4.19.y f5d8eef067ac cba33199 .config log report info
ci2-linux-4-19 2020/11/03 11:51 linux-4.19.y f5d8eef067ac cba33199 .config log report info
ci2-linux-4-19 2020/10/21 03:07 linux-4.19.y ad326970d25c ff4a3345 .config log report info
ci2-linux-4-19 2020/10/09 12:44 linux-4.19.y a1b977b49b66 fa79ed2a .config log report info
ci2-linux-4-19 2020/10/03 00:42 linux-4.19.y b09c34517e1a 062c9832 .config log report info
ci2-linux-4-19 2020/09/16 21:16 linux-4.19.y a87f96283793 77507d02 .config log report info
ci2-linux-4-19 2020/09/16 17:38 linux-4.19.y a87f96283793 77507d02 .config log report info
ci2-linux-4-19 2020/09/08 20:54 linux-4.19.y c37da90efff5 abf9ba4f .config log report
ci2-linux-4-19 2020/08/31 06:39 linux-4.19.y f6d5cb9e2c06 d5a3ae1f .config log report
ci2-linux-4-19 2020/08/22 19:51 linux-4.19.y d18b78abc0c6 6436ce4b .config log report
ci2-linux-4-19 2020/08/15 20:51 linux-4.19.y c14d30dc9987 5ce13532 .config log report
ci2-linux-4-19 2020/08/14 00:16 linux-4.19.y c14d30dc9987 54ce1ed6 .config log report
ci2-linux-4-19 2020/08/12 23:54 linux-4.19.y c14d30dc9987 bc15f7db .config log report
ci2-linux-4-19 2020/08/11 03:07 linux-4.19.y 961f830af065 d3694ffb .config log report
ci2-linux-4-19 2020/08/05 16:49 linux-4.19.y c076c79e03c6 b7129355 .config log report
ci2-linux-4-19 2020/07/22 02:43 linux-4.19.y 17a87580a885 21f1765e .config log report
ci2-linux-4-19 2020/07/19 20:25 linux-4.19.y 17a87580a885 9c812472 .config log report
ci2-linux-4-19 2020/07/16 12:49 linux-4.19.y 17a87580a885 b090c643 .config log report
ci2-linux-4-19 2020/07/15 22:22 linux-4.19.y dce0f88600e4 ada108d0 .config log report
ci2-linux-4-19 2020/07/07 19:20 linux-4.19.y 399849e4654e 08fc4ef1 .config log report
ci2-linux-4-19 2020/07/05 12:39 linux-4.19.y 399849e4654e 22f87567 .config log report
ci2-linux-4-19 2020/07/04 17:34 linux-4.19.y 399849e4654e 4f739670 .config log report
ci2-linux-4-19 2020/07/01 11:12 linux-4.19.y 399849e4654e 090d8f7b .config log report
ci2-linux-4-19 2020/07/01 08:03 linux-4.19.y a39e75458e1c c0383ebe .config log report
ci2-linux-4-19 2020/06/27 09:30 linux-4.19.y a39e75458e1c 032b4239 .config log report
ci2-linux-4-19 2020/06/27 05:39 linux-4.19.y a39e75458e1c ffec44b5 .config log report
ci2-linux-4-19 2020/06/26 12:02 linux-4.19.y a39e75458e1c b202c7a8 .config log report
ci2-linux-4-19 2020/06/24 18:50 linux-4.19.y b3a99fd385fa 41694dbf .config log report
ci2-linux-4-19 2020/06/24 16:03 linux-4.19.y b3a99fd385fa 41694dbf .config log report
ci2-linux-4-19 2020/06/24 09:23 linux-4.19.y b3a99fd385fa bbad15ae .config log report
ci2-linux-4-19 2020/06/22 17:06 linux-4.19.y b3a99fd385fa 1afe1535 .config log report
ci2-linux-4-19 2020/06/21 15:12 linux-4.19.y 3fc898571b97 4f2acff9 .config log report
ci2-linux-4-19 2020/06/19 15:04 linux-4.19.y 3fc898571b97 123cf502 .config log report
ci2-linux-4-19 2020/06/18 16:37 linux-4.19.y 3fc898571b97 3ea11d3f .config log report
ci2-linux-4-19 2020/06/13 22:34 linux-4.19.y 3fc898571b97 dbce178a .config log report
ci2-linux-4-19 2020/06/12 17:31 linux-4.19.y 3fc898571b97 3036d6fd .config log report
ci2-linux-4-19 2020/06/08 16:00 linux-4.19.y 106fa147d3da 7604bb03 .config log report
ci2-linux-4-19 2020/06/06 14:10 linux-4.19.y 4707d8e57273 e6b89e4e .config log report
ci2-linux-4-19 2020/06/05 13:53 linux-4.19.y 4707d8e57273 d36418e9 .config log report