syzbot


KMSAN: kernel-infoleak in move_addr_to_user (6)
Status: upstream: reported C repro on 2021/12/20 16:33
Reported-by: syzbot+cdbd40e0c3ca02cae3b7@syzkaller.appspotmail.com
Fix commit: d6d86830705f net ticp:fix a kernel-infoleak in __tipc_sendmsg()
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-riscv64 ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 38d, last: 25d
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KMSAN: kernel-infoleak in move_addr_to_user (3) C 79 495d 529d 17/22 fixed on 2020/09/28 09:09
upstream KMSAN: kernel-infoleak in move_addr_to_user (2) C 8 1034d 1049d 12/22 fixed on 2019/03/28 12:00
upstream KMSAN: kernel-infoleak in move_addr_to_user (4) C 59 327d 379d 21/22 fixed on 2021/03/10 01:48
upstream KMSAN: kernel-infoleak in move_addr_to_user (5) 3 177d 318d 22/22 fixed on 2021/11/10 00:50
upstream KMSAN: kernel-infoleak in move_addr_to_user 5 1062d 1112d 12/22 fixed on 2019/03/06 07:43

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kmsan-gce 2021/12/17 12:20 https://github.com/google/kmsan.git master b0a8b5053e8b 44068e19 .config log report syz C KMSAN: kernel-infoleak in move_addr_to_user
ci-upstream-kmsan-gce 2021/12/30 05:11 https://github.com/google/kmsan.git master 81c325bbf94e 6cc879d4 .config log report info KMSAN: kernel-infoleak in move_addr_to_user
ci-upstream-kmsan-gce 2021/12/17 11:04 https://github.com/google/kmsan.git master b0a8b5053e8b 44068e19 .config log report info KMSAN: kernel-infoleak in move_addr_to_user