syzbot


general protection fault in mm_update_next_owner (2)

Status: auto-obsoleted due to no activity on 2023/03/01 16:07
Reported-by: syzbot+e677e5cb9ea5fde263fa@syzkaller.appspotmail.com
First crash: 487d, last: 487d
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 755d 1282d 0/1 auto-closed as invalid on 2022/06/06 03:00
linux-4.14 general protection fault in mm_update_next_owner 6 1290d 1508d 0/1 auto-closed as invalid on 2020/12/18 13:04
linux-4.14 general protection fault in mm_update_next_owner (2) 6 1032d 1121d 0/1 auto-closed as invalid on 2021/09/01 20:39
linux-4.19 general protection fault in mm_update_next_owner 6 1301d 1420d 0/1 auto-closed as invalid on 2020/12/07 18:48
upstream general protection fault in mm_update_next_owner (2) kernel 14 1211d 1414d 0/26 auto-closed as invalid on 2021/03/07 09:36
upstream general protection fault in mm_update_next_owner kernel syz done done 1 1729d 1729d 12/26 fixed on 2019/08/27 17:15
upstream general protection fault in mm_update_next_owner (3) kernel 1 330d 326d 0/26 auto-obsoleted due to no activity on 2023/07/06 16:17
upstream BUG: unable to handle kernel paging request in mm_update_next_owner (2) kernel 1 849d 845d 0/26 auto-closed as invalid on 2022/01/03 02:17

Sample crash report:
caif:caif_disconnect_client(): nothing to disconnect
caif:caif_disconnect_client(): nothing to disconnect
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
CPU: 0 PID: 5856 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:mm_update_next_owner+0x3c6/0x650 kernel/exit.c:452
Code: 48 8d bd 30 03 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 52 02 00 00 48 8b ad 30 03 00 00 4c 8d 6d 10 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 29 02 00 00 48 8b 45 10 48 8d a8 70 fa ff ff 49
RSP: 0018:ffff8881f8107d50 EFLAGS: 00010202
RAX: 0000000000000002 RBX: dffffc0000000000 RCX: ffffffff8138bd9e
RDX: 0000000000000000 RSI: ffffffff8138bdac RDI: ffff88800010ea00
RBP: 0000000000000000 R08: ffff888037d4e460 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88808ceeeb80
R13: 0000000000000010 R14: ffff888096f82280 R15: ffff888095c5e040
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33b23000 CR3: 0000000235edc000 CR4: 00000000003426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 exit_mm kernel/exit.c:548 [inline]
 do_exit+0xae4/0x2be0 kernel/exit.c:857
 do_group_exit+0x125/0x310 kernel/exit.c:967
 __do_sys_exit_group kernel/exit.c:978 [inline]
 __se_sys_exit_group kernel/exit.c:976 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:976
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f0536a5f5a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff142b2608 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f0536a5f5a9
RDX: 00007f0536a1137b RSI: ffffffffffffffb8 RDI: 0000000000000000
RBP: 0000000000000000 R08: 000000007b2586d1 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007fff142b26f0
Modules linked in:
---[ end trace c2040296cc474364 ]---
RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline]
RIP: 0010:mm_update_next_owner+0x3c6/0x650 kernel/exit.c:452
Code: 48 8d bd 30 03 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 52 02 00 00 48 8b ad 30 03 00 00 4c 8d 6d 10 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 29 02 00 00 48 8b 45 10 48 8d a8 70 fa ff ff 49
RSP: 0018:ffff8881f8107d50 EFLAGS: 00010202
RAX: 0000000000000002 RBX: dffffc0000000000 RCX: ffffffff8138bd9e
RDX: 0000000000000000 RSI: ffffffff8138bdac RDI: ffff88800010ea00
RBP: 0000000000000000 R08: ffff888037d4e460 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88808ceeeb80
R13: 0000000000000010 R14: ffff888096f82280 R15: ffff888095c5e040
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33b23000 CR3: 0000000235edc000 CR4: 00000000003426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	48 8d bd 30 03 00 00 	lea    0x330(%rbp),%rdi
   7:	48 89 f8             	mov    %rdi,%rax
   a:	48 c1 e8 03          	shr    $0x3,%rax
   e:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  12:	0f 85 52 02 00 00    	jne    0x26a
  18:	48 8b ad 30 03 00 00 	mov    0x330(%rbp),%rbp
  1f:	4c 8d 6d 10          	lea    0x10(%rbp),%r13
  23:	4c 89 e8             	mov    %r13,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1) <-- trapping instruction
  2e:	0f 85 29 02 00 00    	jne    0x25d
  34:	48 8b 45 10          	mov    0x10(%rbp),%rax
  38:	48 8d a8 70 fa ff ff 	lea    -0x590(%rax),%rbp
  3f:	49                   	rex.WB

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/11/01 16:06 linux-4.19.y 3f8a27f9e27b a1d8560a .config console log report info [disk image] [vmlinux] ci2-linux-4-19 general protection fault in mm_update_next_owner
* Struck through repros no longer work on HEAD.