BUG: unable to handle page fault for address: ffff88808b014000
#PF: supervisor write access in kernel mode
#PF: error_code(0x0003) - permissions violation
PGD b601067 P4D b601067 PUD 21ffff067 PMD 942e1063 PTE 800000008b014161
Oops: 0003 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 9679 Comm: rs:main Q:Reg Not tainted 5.3.0-rc8+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:66
Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 <f3> aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01
RSP: 0018:ffff8880998cf6a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000020 RCX: 000000007fb0c27f
RDX: 000000007fffffdf RSI: 0000000000000000 RDI: ffff88808b014000
RBP: ffff8880998cf6c8 R08: ffffed1011580000 R09: ffff88808ab202a0
R10: ffffed102156404f R11: ffff88810ab2027e R12: ffff88808ab202a0
R13: 000000007fffffdf R14: 0000000000000000 R15: ffff888095344a28
FS:  00007f6ff1c57700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88808b014000 CR3: 00000000a3e9d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 memset include/linux/string.h:344 [inline]
 __ext4_expand_extra_isize+0x1ab/0x290 fs/ext4/inode.c:5948
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6000 [inline]
 ext4_mark_inode_dirty+0x74e/0x9b0 fs/ext4/inode.c:6076
 ext4_dirty_inode+0x8f/0xc0 fs/ext4/inode.c:6110
 __mark_inode_dirty+0x68e/0x1390 fs/fs-writeback.c:2170
 mark_inode_dirty include/linux/fs.h:2138 [inline]
 generic_write_end+0x220/0x2e0 fs/buffer.c:2159
 ext4_da_write_end+0x205/0xa50 fs/ext4/inode.c:3217
 generic_perform_write+0x2fe/0x540 mm/filemap.c:3338
 __generic_file_write_iter+0x25e/0x630 mm/filemap.c:3456
 ext4_file_write_iter+0x373/0x1430 fs/ext4/file.c:270
 call_write_iter include/linux/fs.h:1870 [inline]
 new_sync_write+0x4d3/0x770 fs/read_write.c:483
 __vfs_write+0xe1/0x110 fs/read_write.c:496
 vfs_write+0x268/0x5d0 fs/read_write.c:558
 ksys_write+0x14f/0x290 fs/read_write.c:611
 __do_sys_write fs/read_write.c:623 [inline]
 __se_sys_write fs/read_write.c:620 [inline]
 __x64_sys_write+0x73/0xb0 fs/read_write.c:620
 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f6ff36b519d
Code: d1 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be fa ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 07 fb ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007f6ff1c56000 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000297 RCX: 00007f6ff36b519d
RDX: 0000000000000297 RSI: 0000000000db7a90 RDI: 0000000000000005
RBP: 0000000000db7a90 R08: 2031333a32323a37 R09: 656c6c616b7a7973
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f6ff1c56480 R14: 0000000000000005 R15: 0000000000db7890
Modules linked in:
CR2: ffff88808b014000
---[ end trace 9f3b43440d3a5447 ]---
RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:66
Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 <f3> aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01
RSP: 0018:ffff8880998cf6a8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000020 RCX: 000000007fb0c27f
RDX: 000000007fffffdf RSI: 0000000000000000 RDI: ffff88808b014000
RBP: ffff8880998cf6c8 R08: ffffed1011580000 R09: ffff88808ab202a0
R10: ffffed102156404f R11: ffff88810ab2027e R12: ffff88808ab202a0
R13: 000000007fffffdf R14: 0000000000000000 R15: ffff888095344a28
FS:  00007f6ff1c57700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88808b014000 CR3: 00000000a3e9d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400