BUG: unable to handle page fault for address: ffff888001000000
#PF: supervisor write access in kernel mode
#PF: error_code(0x0003) - permissions violation
PGD 11201067 P4D 11201067 PUD 11202067 PMD 80000000010001e1
Oops: 0003 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 13060 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__writeq arch/x86/include/asm/io.h:98 [inline]
RIP: 0010:bitfill_aligned+0x18b/0x270 drivers/video/fbdev/core/cfbfillrect.c:71
Code: 00 00 89 c6 e8 26 64 2c fd 83 fd 07 76 37 90 4c 89 33 4c 89 73 08 4c 89 73 10 4c 89 73 18 4c 89 73 20 4c 89 73 28 4c 89 73 30 <4c> 89 73 38 83 c5 f8 83 fd 07 76 16 48 83 c3 38 e8 e0 5f 2c fd 48
RSP: 0018:ffffc9000a81f778 EFLAGS: 00010282
RAX: ffffffff8457e500 RBX: ffff888000ffffc8 RCX: 0000000000040000
RDX: ffffc9000e185000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 000000000000004b R08: ffffffff8457e4ca R09: 0000000000000040
R10: 0000000000000002 R11: ffff888014bf9d00 R12: ffffffffffffffff
R13: 00000000000018c0 R14: 0000000000000000 R15: 0000000000000000
FS: 00007fd98474e700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000000 CR3: 000000002f489000 CR4: 00000000003506f0
Call Trace:
cfb_fillrect+0x5d8/0x800 drivers/video/fbdev/core/cfbfillrect.c:327
bit_clear_margins+0x2d7/0x6e0 drivers/video/fbdev/core/bitblit.c:224
fbcon_clear_margins drivers/video/fbdev/core/fbcon.c:1315 [inline]
fbcon_switch+0x16bb/0x2340 drivers/video/fbdev/core/fbcon.c:2146
redraw_screen+0x53d/0x1280 drivers/tty/vt/vt.c:1021
do_fb_ioctl+0x7f2/0x900 drivers/video/fbdev/core/fbmem.c:1114
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd9871d8ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd98474e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd9872ebf60 RCX: 00007fd9871d8ae9
RDX: 00000000200002c0 RSI: 0000000000004601 RDI: 0000000000000003
RBP: 00007fd987232f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff35bd097f R14: 00007fd98474e300 R15: 0000000000022000
Modules linked in:
CR2: ffff888001000000
BUG: unable to handle page fault for address: ffff888001000000
#PF: supervisor write access in kernel mode
#PF: error_code(0x0003) - permissions violation
PGD 11201067 P4D 11201067 PUD 11202067 PMD 80000000010001e1
Oops: 0003 [#2] PREEMPT SMP KASAN
CPU: 0 PID: 13060 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__writeq arch/x86/include/asm/io.h:98 [inline]
RIP: 0010:bitfill_aligned+0x18b/0x270 drivers/video/fbdev/core/cfbfillrect.c:71
Code: 00 00 89 c6 e8 26 64 2c fd 83 fd 07 76 37 90 4c 89 33 4c 89 73 08 4c 89 73 10 4c 89 73 18 4c 89 73 20 4c 89 73 28 4c 89 73 30 <4c> 89 73 38 83 c5 f8 83 fd 07 76 16 48 83 c3 38 e8 e0 5f 2c fd 48
RSP: 0018:ffffc9000a81ecd8 EFLAGS: 00010082
RAX: ffffffff8457e500 RBX: ffff888000ffffc8 RCX: 0000000000040000
RDX: ffffc9000e185000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 000000000000004b R08: ffffffff8457e4ca R09: 0000000000000040
R10: 0000000000000002 R11: ffff888014bf9d00 R12: ffffffffffffffff
R13: 00000000000018c0 R14: 0000000000000000 R15: 0000000000000000
FS: 00007fd98474e700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000000 CR3: 000000002f489000 CR4: 00000000003506f0
Call Trace:
cfb_fillrect+0x5d8/0x800 drivers/video/fbdev/core/cfbfillrect.c:327
bit_clear_margins+0x2d7/0x6e0 drivers/video/fbdev/core/bitblit.c:224
fbcon_clear_margins drivers/video/fbdev/core/fbcon.c:1315 [inline]
fbcon_switch+0x16bb/0x2340 drivers/video/fbdev/core/fbcon.c:2146
redraw_screen+0x53d/0x1280 drivers/tty/vt/vt.c:1021
fbcon_blank+0x556/0xa50 drivers/video/fbdev/core/fbcon.c:2207
do_unblank_screen+0x27c/0xb20 drivers/tty/vt/vt.c:4438
bust_spinlocks+0x43/0xd0 lib/bust_spinlocks.c:26
oops_end+0x45/0x140 arch/x86/kernel/dumpstack.c:361
page_fault_oops+0x838/0xaa0 arch/x86/mm/fault.c:708
__bad_area_nosemaphore+0x127/0x590 arch/x86/mm/fault.c:806
do_kern_addr_fault arch/x86/mm/fault.c:1207 [inline]
handle_page_fault arch/x86/mm/fault.c:1483 [inline]
exc_page_fault+0x15b/0x1e0 arch/x86/mm/fault.c:1541
asm_exc_page_fault+0x1e/0x30
RIP: 0010:__writeq arch/x86/include/asm/io.h:98 [inline]
RIP: 0010:bitfill_aligned+0x18b/0x270 drivers/video/fbdev/core/cfbfillrect.c:71
Code: 00 00 89 c6 e8 26 64 2c fd 83 fd 07 76 37 90 4c 89 33 4c 89 73 08 4c 89 73 10 4c 89 73 18 4c 89 73 20 4c 89 73 28 4c 89 73 30 <4c> 89 73 38 83 c5 f8 83 fd 07 76 16 48 83 c3 38 e8 e0 5f 2c fd 48
RSP: 0018:ffffc9000a81f778 EFLAGS: 00010282
RAX: ffffffff8457e500 RBX: ffff888000ffffc8 RCX: 0000000000040000
RDX: ffffc9000e185000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 000000000000004b R08: ffffffff8457e4ca R09: 0000000000000040
R10: 0000000000000002 R11: ffff888014bf9d00 R12: ffffffffffffffff
R13: 00000000000018c0 R14: 0000000000000000 R15: 0000000000000000
cfb_fillrect+0x5d8/0x800 drivers/video/fbdev/core/cfbfillrect.c:327
bit_clear_margins+0x2d7/0x6e0 drivers/video/fbdev/core/bitblit.c:224
fbcon_clear_margins drivers/video/fbdev/core/fbcon.c:1315 [inline]
fbcon_switch+0x16bb/0x2340 drivers/video/fbdev/core/fbcon.c:2146
redraw_screen+0x53d/0x1280 drivers/tty/vt/vt.c:1021
do_fb_ioctl+0x7f2/0x900 drivers/video/fbdev/core/fbmem.c:1114
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfb/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd9871d8ae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd98474e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd9872ebf60 RCX: 00007fd9871d8ae9
RDX: 00000000200002c0 RSI: 0000000000004601 RDI: 0000000000000003
RBP: 00007fd987232f25 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff35bd097f R14: 00007fd98474e300 R15: 0000000000022000
Modules linked in:
CR2: ffff888001000000
---[ end trace 639e4ef7eb7f776b ]---
RIP: 0010:__writeq arch/x86/include/asm/io.h:98 [inline]
RIP: 0010:bitfill_aligned+0x18b/0x270 drivers/video/fbdev/core/cfbfillrect.c:71
Code: 00 00 89 c6 e8 26 64 2c fd 83 fd 07 76 37 90 4c 89 33 4c 89 73 08 4c 89 73 10 4c 89 73 18 4c 89 73 20 4c 89 73 28 4c 89 73 30 <4c> 89 73 38 83 c5 f8 83 fd 07 76 16 48 83 c3 38 e8 e0 5f 2c fd 48
RSP: 0018:ffffc9000a81f778 EFLAGS: 00010282
RAX: ffffffff8457e500 RBX: ffff888000ffffc8 RCX: 0000000000040000
RDX: ffffc9000e185000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 000000000000004b R08: ffffffff8457e4ca R09: 0000000000000040
R10: 0000000000000002 R11: ffff888014bf9d00 R12: ffffffffffffffff
R13: 00000000000018c0 R14: 0000000000000000 R15: 0000000000000000
FS: 00007fd98474e700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000000 CR3: 000000002f489000 CR4: 00000000003506f0
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 89 c6 mov %eax,%esi
4: e8 26 64 2c fd callq 0xfd2c642f
9: 83 fd 07 cmp $0x7,%ebp
c: 76 37 jbe 0x45
e: 90 nop
f: 4c 89 33 mov %r14,(%rbx)
12: 4c 89 73 08 mov %r14,0x8(%rbx)
16: 4c 89 73 10 mov %r14,0x10(%rbx)
1a: 4c 89 73 18 mov %r14,0x18(%rbx)
1e: 4c 89 73 20 mov %r14,0x20(%rbx)
22: 4c 89 73 28 mov %r14,0x28(%rbx)
26: 4c 89 73 30 mov %r14,0x30(%rbx)
* 2a: 4c 89 73 38 mov %r14,0x38(%rbx) <-- trapping instruction
2e: 83 c5 f8 add $0xfffffff8,%ebp
31: 83 fd 07 cmp $0x7,%ebp
34: 76 16 jbe 0x4c
36: 48 83 c3 38 add $0x38,%rbx
3a: e8 e0 5f 2c fd callq 0xfd2c601f
3f: 48 rex.W