syzbot


general protection fault in mm_update_next_owner (2)

Status: auto-closed as invalid on 2021/09/01 20:39
Reported-by: syzbot+adea392a1e3dcfed468c@syzkaller.appspotmail.com
First crash: 599d, last: 511d
similar bugs (8):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 BUG: unable to handle kernel paging request in mm_update_next_owner 21 234d 761d 0/1 auto-closed as invalid on 2022/06/06 03:00
linux-4.14 general protection fault in mm_update_next_owner 6 768d 987d 0/1 auto-closed as invalid on 2020/12/18 13:04
linux-4.19 general protection fault in mm_update_next_owner 6 779d 899d 0/1 auto-closed as invalid on 2020/12/07 18:48
upstream general protection fault in mm_update_next_owner (2) 14 689d 893d 0/24 auto-closed as invalid on 2021/03/07 09:36
upstream general protection fault in mm_update_next_owner syz done done 1 1207d 1207d 13/24 fixed on 2019/08/27 17:15
upstream BUG: unable to handle kernel paging request in mm_update_next_owner (2) 1 328d 324d 0/24 auto-closed as invalid on 2022/01/03 02:17
upstream BUG: unable to handle kernel paging request in mm_update_next_owner 11 692d 802d 0/24 auto-closed as invalid on 2021/03/04 20:21
linux-4.14 BUG: unable to handle kernel paging request in mm_update_next_owner 1 853d 853d 0/1 auto-closed as invalid on 2020/09/24 23:44

Sample crash report:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 29055 Comm: syz-executor.3 Not tainted 4.14.231-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88809aa886c0 task.stack: ffff8880141b0000
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:mm_update_next_owner+0x367/0x5b0 kernel/exit.c:451
RSP: 0018:ffff8880141b7d48 EFLAGS: 00010202
RAX: 0000000000000002 RBX: dffffc0000000000 RCX: 0000000000001872
RDX: 0000000000000000 RSI: 0000000000000100 RDI: ffff88800010e740
RBP: 0000000000000000 R08: ffff88809ac7a8b0 R09: 000000000006008a
R10: ffff88809aa88f48 R11: ffff88809aa886c0 R12: ffff8880a8910640
R13: 0000000000000010 R14: ffff88809aa886c0 R15: ffff888091c65900
FS:  0000000000000000(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f32f7cad718 CR3: 0000000059d40000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 exit_mm kernel/exit.c:547 [inline]
 do_exit+0x97c/0x2850 kernel/exit.c:855
 do_group_exit+0x100/0x2e0 kernel/exit.c:965
 SYSC_exit_group kernel/exit.c:976 [inline]
 SyS_exit_group+0x19/0x20 kernel/exit.c:974
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x466459
RSP: 002b:00007ffc4d8041b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 0000000000466459
RDX: 000000000041926b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffc4d8042b0
Code: 00 48 8d bd 20 03 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 fb 01 00 00 48 8b ad 20 03 00 00 4c 8d 6d 10 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 d2 01 00 00 48 8b 45 10 48 8d a8 68 fa ff ff 
RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff8880141b7d48
RIP: mm_update_next_owner+0x367/0x5b0 kernel/exit.c:451 RSP: ffff8880141b7d48
---[ end trace b8f9d892a1075b8f ]---

Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/04/20 04:31 linux-4.14.y cf256fbcbe34 4285c989 .config log report info general protection fault in mm_update_next_owner
ci2-linux-4-14 2021/02/08 07:24 linux-4.14.y 2c8a3fceddf0 2ce644fc .config log report info general protection fault in mm_update_next_owner
ci2-linux-4-14 2021/02/05 09:00 linux-4.14.y 2c8a3fceddf0 23a562df .config log report info general protection fault in mm_update_next_owner
ci2-linux-4-14 2021/05/04 20:38 linux-4.14.y 7d7d1c0ab3eb 06c27ff5 .config log report info BUG: unable to handle kernel paging request in mm_update_next_owner
ci2-linux-4-14 2021/04/18 17:38 linux-4.14.y cf256fbcbe34 7e2b734b .config log report info BUG: unable to handle kernel paging request in mm_update_next_owner
ci2-linux-4-14 2021/04/06 13:04 linux-4.14.y bd634aa64163 6a81331a .config log report info BUG: unable to handle kernel paging request in mm_update_next_owner
* Struck through repros no longer work on HEAD.