syzbot


KMSAN: uninit-value in __mpol_equal (3)
Status: internal: reported on 2021/09/27 10:49
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 6d2aec9e123b mm/mempolicy: do not allow illegal MPOL_F_NUMA_BALANCING | MPOL_LOCAL in mbind()
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-kmsan-gce ci-upstream-kmsan-gce-386 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]
First crash: 122d, last: 98d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KMSAN: uninit-value in __mpol_equal 1 278d 271d 0/22 auto-closed as invalid on 2021/08/22 02:07
upstream KMSAN: uninit-value in __mpol_equal (2) 5 123d 127d 0/22 closed as invalid on 2021/09/27 07:07

Sample crash report:

Crashes (13):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kmsan-gce 2021/10/21 08:17 https://github.com/google/kmsan.git master d6493d2046c4 f111d03b .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/10/15 01:13 https://github.com/google/kmsan.git master c7f84f4e1147 7aa5fe41 .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/10/12 10:23 https://github.com/google/kmsan.git master c7f84f4e1147 838e7e2c .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/10/09 21:42 https://github.com/google/kmsan.git master c7f84f4e1147 838e7e2c .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/10/07 17:40 https://github.com/google/kmsan.git master c7f84f4e1147 efe0f24d .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/10/04 20:48 https://github.com/google/kmsan.git master 90f502f5d016 ce697b49 .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/10/04 07:20 https://github.com/google/kmsan.git master 90f502f5d016 db0f5787 .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/10/01 22:53 https://github.com/google/kmsan.git master 90f502f5d016 cc80db95 .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/10/01 03:36 https://github.com/google/kmsan.git master 90f502f5d016 1d849ab4 .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/09/30 06:23 https://github.com/google/kmsan.git master 90f502f5d016 be530f6c .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/09/29 06:44 https://github.com/google/kmsan.git master 90f502f5d016 d82cb927 .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/09/27 20:44 https://github.com/google/kmsan.git master cd2c05533838 78494d16 .config log report info KMSAN: uninit-value in __mpol_equal
ci-upstream-kmsan-gce 2021/09/27 09:58 https://github.com/google/kmsan.git master cd2c05533838 78494d16 .config log report info KMSAN: uninit-value in __mpol_equal