BUG: unable to handle kernel paging request in kernel_get

duplicates (2):
Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
KASAN: user-memory-access Read in put_page arch	C	done	error	3	1475d	1472d	0/26	closed as dup on 2020/06/27 21:18
BUG: unable to handle kernel paging request in get_pfnblock_flags_mask mm	C	done		1	1475d	1471d	0/26	closed as dup on 2020/04/07 22:08

Title	Replies (including bot)	Last reply
[PATCH 0/2] mm: Two small fixes for recent syzbot reports	56 (56)	2020/05/11 15:29
BUG: unable to handle kernel paging request in kernel_get_mempolicy	9 (13)	2020/04/07 15:59
KASAN: user-memory-access Read in put_page	1 (2)	2020/04/06 23:21

Title

Replies (including bot)

Last reply

[PATCH 0/2] mm: Two small fixes for recent syzbot reports

56 (56)

2020/05/11 15:29

BUG: unable to handle kernel paging request in kernel_get_mempolicy

9 (13)

2020/04/07 15:59

KASAN: user-memory-access Read in put_page

1 (2)

2020/04/06 23:21

Created	Duration	User	Patch	Repo	Result
2020/04/07 01:27	18m	peterx@redhat.com		https://github.com/xzpeter/linux.git 23800bff6fa346a4e9b3806dc0cfeb74498df757	OK

Created

Duration

User

Patch

Repo

Result

2020/04/07 01:27

18m

peterx@redhat.com

https://github.com/xzpeter/linux.git 23800bff6fa346a4e9b3806dc0cfeb74498df757

BUG: unable to handle page fault for address: ffffffff00000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 987c067 P4D 987c067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7181 Comm: syz-executor616 Not tainted 5.6.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:page_to_nid include/linux/mm.h:1245 [inline] RIP: 0010:lookup_node mm/mempolicy.c:906 [inline] RIP: 0010:do_get_mempolicy mm/mempolicy.c:970 [inline] RIP: 0010:kernel_get_mempolicy+0x60e/0xfb0 mm/mempolicy.c:1615 Code: 88 00 07 00 00 e8 b2 35 c5 ff 4c 8b 7c 24 78 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 fb 08 00 00 <49> 8b 1f 48 c7 c7 ff ff ff ff 48 89 de e8 10 37 c5 ff 48 83 fb ff RSP: 0018:ffffc900018d7de8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81adaaf1 RDX: 1fffffffe0000000 RSI: ffffffff81adaafe RDI: 0000000000000005 RBP: 0000000000000000 R08: ffff88808de924c0 R09: ffffed1011bd2499 R10: ffff88808de924c7 R11: ffffed1011bd2498 R12: 0000000000000000 R13: 1ffff9200031afc4 R14: ffffffff89a6df60 R15: ffffffff00000000 FS: 00007f848cd4a700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000000 CR3: 00000000a7a8d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_get_mempolicy mm/mempolicy.c:1633 [inline] __se_sys_get_mempolicy mm/mempolicy.c:1629 [inline] __x64_sys_get_mempolicy+0xba/0x150 mm/mempolicy.c:1629 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x446719 Code: e8 5c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 0b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f848cd49db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ef RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000006dbc20 R08: 0000000000000003 R09: 0000000000000000 R10: 000000002073b000 R11: 0000000000000246 R12: 00000000006dbc2c R13: 00007ffcfe6ba66f R14: 00007f848cd4a9c0 R15: 20c49ba5e353f7cf Modules linked in: CR2: ffffffff00000000 ---[ end trace 0becf554e06291c3 ]--- RIP: 0010:page_to_nid include/linux/mm.h:1245 [inline] RIP: 0010:lookup_node mm/mempolicy.c:906 [inline] RIP: 0010:do_get_mempolicy mm/mempolicy.c:970 [inline] RIP: 0010:kernel_get_mempolicy+0x60e/0xfb0 mm/mempolicy.c:1615 Code: 88 00 07 00 00 e8 b2 35 c5 ff 4c 8b 7c 24 78 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 fb 08 00 00 <49> 8b 1f 48 c7 c7 ff ff ff ff 48 89 de e8 10 37 c5 ff 48 83 fb ff RSP: 0018:ffffc900018d7de8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81adaaf1 RDX: 1fffffffe0000000 RSI: ffffffff81adaafe RDI: 0000000000000005 RBP: 0000000000000000 R08: ffff88808de924c0 R09: ffffed1011bd2499 R10: ffff88808de924c7 R11: ffffed1011bd2498 R12: 0000000000000000 R13: 1ffff9200031afc4 R14: ffffffff89a6df60 R15: ffffffff00000000 FS: 00007f848cd4a700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff00000000 CR3: 00000000a7a8d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400