audit: type=1400 audit(1588430297.184:8): avc:  denied  { execmem } for  pid=6454 comm="syz-executor174" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6454 Comm: syz-executor174 Not tainted 4.19.119-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:27
Code: 09 7d 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 40 a9 37 00 48 85 db 75 0d e8 a6 a7 37 00 4c 89 e0 5b 5d 41 5c c3 e8 99 a7 37 00 <0f> 0b e8 92 a7 37 00 48 c7 c0 10 50 c7 88 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff8880a6af79f8 EFLAGS: 00010093
RAX: ffff8880a5646700 RBX: 0000000000000001 RCX: ffffffff813021d0
RDX: 0000000000000000 RSI: ffffffff813021e7 RDI: 0000000000000007
RBP: ffffc900819d4000 R08: ffff8880a5646700 R09: ffffed1015cc4733
R10: ffffed1015cc4732 R11: ffff8880ae623993 R12: 00004080019d4000
R13: ffffffff837504e0 R14: 00000000000000b1 R15: ffff88812c27f200
FS:  0000000001a3e880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3cf20f6c0 CR3: 000000009f829000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 virt_to_head_page include/linux/mm.h:653 [inline]
 virt_to_cache mm/slab.c:399 [inline]
 kfree+0x77/0x220 mm/slab.c:3818
 vc_do_resize+0x10ac/0x1380 drivers/tty/vt/vt.c:1236
 vt_resize+0xa3/0xe0 drivers/tty/vt/vt.c:1353
 tiocswinsz drivers/tty/tty_io.c:2275 [inline]
 tty_ioctl+0xbdf/0x1420 drivers/tty/tty_io.c:2584
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcda/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4403a9
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffe119e8f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffe119e8f40 RCX: 00000000004403a9
RDX: 0000000020000000 RSI: 0000000000005414 RDI: 0000000000000005
RBP: 00000000006cb018 R08: 000000000000000d R09: 65732f636f72702f
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401c90
R13: 0000000000401d20 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 87933b8c091ac456 ]---
RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:27
Code: 09 7d 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 40 a9 37 00 48 85 db 75 0d e8 a6 a7 37 00 4c 89 e0 5b 5d 41 5c c3 e8 99 a7 37 00 <0f> 0b e8 92 a7 37 00 48 c7 c0 10 50 c7 88 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff8880a6af79f8 EFLAGS: 00010093
RAX: ffff8880a5646700 RBX: 0000000000000001 RCX: ffffffff813021d0
RDX: 0000000000000000 RSI: ffffffff813021e7 RDI: 0000000000000007
RBP: ffffc900819d4000 R08: ffff8880a5646700 R09: ffffed1015cc4733
R10: ffffed1015cc4732 R11: ffff8880ae623993 R12: 00004080019d4000
R13: ffffffff837504e0 R14: 00000000000000b1 R15: ffff88812c27f200
FS:  0000000001a3e880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3cf20f6c0 CR3: 000000009f829000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400