kernel BUG at arch/x86/mm/physaddr.c:LINE! (6)

kernel BUG at arch/x86/mm/physaddr.c:LINE! (6)
Status: upstream: reported on 2020/07/29 21:34
Reported-by: syzbot+dfb45ba0aafa4329fd19@syzkaller.appspotmail.com
First crash: 16d, last: 16d

similar bugs (9):
Kernel	Title	Repro	Bisected	Count	Last	Reported	Patched	Status
upstream	kernel BUG at arch/x86/mm/physaddr.c:LINE! (2)	C	cause	522	424d	633d	13/17	fixed on 2019/06/14 18:22
linux-4.19	kernel BUG at arch/x86/mm/physaddr.c:LINE! (2)	C	fix	82	82d	222d	1/1	fixed on 2020/06/20 23:56
linux-4.19	kernel BUG at arch/x86/mm/physaddr.c:LINE!	syz	fix	1	409d	409d	1/1	fixed on 2019/12/16 09:09
linux-4.14	kernel BUG at arch/x86/mm/physaddr.c:LINE!	C	fix	18	12d	229d	0/1	upstream: reported C repro on 2019/12/26 02:01
upstream	kernel BUG at arch/x86/mm/physaddr.c:LINE! (5)	C	cause	241	29d	102d	17/17	fixed on 2020/07/17 17:58
upstream	kernel BUG at arch/x86/mm/physaddr.c:LINE! (3)			4	415d	415d	0/17	auto-closed as invalid on 2019/10/25 08:46
upstream	kernel BUG at arch/x86/mm/physaddr.c:LINE!	C		10	639d	671d	12/17	fixed on 2018/11/12 21:25
linux-4.19	kernel BUG at arch/x86/mm/physaddr.c:LINE! (3)			5	6d20h	28d	0/1	upstream: reported on 2020/07/14 16:42
upstream	kernel BUG at arch/x86/mm/physaddr.c:LINE! (4)	C		18	136d	171d	17/17	fixed on 2020/04/15 17:19

Sample crash report:

------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:28!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 15249 Comm: syz-executor.4 Not tainted 5.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:28
Code: 61 7a 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 90 60 3f 00 48 85 db 75 0d e8 e6 63 3f 00 4c 89 e0 5b 5d 41 5c c3 e8 d9 63 3f 00 <0f> 0b e8 d2 63 3f 00 48 c7 c0 10 10 a8 89 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc90015be7c18 EFLAGS: 00010216
RAX: 0000000000003629 RBX: 0000000000077000 RCX: ffffc900116ea000
RDX: 0000000000040000 RSI: ffffffff813458b7 RDI: 0000000000000006
RBP: 0000000080077000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000080077000 R11: 0000000000000000 R12: 0000778000077000
R13: ffffc90015be7c70 R14: 0000000000000000 R15: 0000000000000286
FS:  0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f5db6b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000055bcdd3fe588 CR3: 0000000070105000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 virt_to_head_page include/linux/mm.h:841 [inline]
 qlink_to_cache mm/kasan/quarantine.c:128 [inline]
 qlist_free_all+0xbb/0x140 mm/kasan/quarantine.c:164
 quarantine_reduce+0x17e/0x200 mm/kasan/quarantine.c:260
 __kasan_kmalloc.constprop.0+0x9e/0xd0 mm/kasan/common.c:475
 slab_post_alloc_hook mm/slab.h:586 [inline]
 slab_alloc mm/slab.c:3320 [inline]
 kmem_cache_alloc+0x12c/0x3b0 mm/slab.c:3484
 __d_alloc+0x2a/0x920 fs/dcache.c:1709
 d_alloc_pseudo+0x19/0x70 fs/dcache.c:1838
 alloc_file_pseudo+0xc6/0x250 fs/file_table.c:226
 sock_alloc_file+0x4f/0x190 net/socket.c:411
 sock_map_fd net/socket.c:435 [inline]
 __sys_socket+0x13d/0x200 net/socket.c:1525
 __do_sys_socket net/socket.c:1530 [inline]
 __se_sys_socket net/socket.c:1528 [inline]
 __ia32_sys_socket+0x6f/0xb0 net/socket.c:1528
 do_syscall_32_irqs_on+0x3f/0x60 arch/x86/entry/common.c:428
 __do_fast_syscall_32 arch/x86/entry/common.c:475 [inline]
 do_fast_syscall_32+0x7f/0x120 arch/x86/entry/common.c:503
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fbb569
Code: Bad RIP value.
RSP: 002b:00000000f5db60cc EFLAGS: 00000296 ORIG_RAX: 0000000000000167
RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:

Crashes (1):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Maintainers
ci-upstream-kasan-gce-386	2020/07/25 21:30	upstream	23ee3e4e	1f7cc1ca	.config	log	report			linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk