kasan: GPF could be caused by NULL-ptr deref or user memory access
alloc_pages_current+0x193/0x2a0 mm/mempolicy.c:2197
alloc_pages include/linux/gfp.h:532 [inline]
pte_alloc_one+0x16/0x190 arch/x86/mm/pgtable.c:35
general protection fault: 0000 [#1] PREEMPT SMP KASAN
__pte_alloc+0x21/0x340 mm/memory.c:665
CPU: 1 PID: 19197 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
__get_locked_pte+0x55a/0x680 mm/memory.c:1705
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
get_locked_pte include/linux/mm.h:1722 [inline]
insert_page mm/memory.c:1728 [inline]
vm_insert_page+0x29b/0x9c0 mm/memory.c:1789
RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51
Code: 0f 84 30 52 85 04 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 31 52 85 04 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 e8 51 85 04 49 8d 7d
RSP: 0018:ffff888056fc74e8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880b43dedc0 RCX: ffffffff814bdebb
remap_vmalloc_range_partial+0x1c2/0x250 mm/vmalloc.c:2276
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880b43df0e8
vb2_vmalloc_mmap+0x45/0x150 drivers/media/common/videobuf2/videobuf2-vmalloc.c:180
RBP: ffff8880b43df0e0 R08: 0000000000000001 R09: fffffbfff15cead8
R10: ffffffff8ae756c3 R11: 0000000000000000 R12: 0000000000000000
vb2_mmap+0x4b1/0x6a0 drivers/media/common/videobuf2/videobuf2-core.c:1998
R13: 0000000000000000 R14: ffff8880b43df040 R15: ffff8880b43df0e8
FS: 00007f8bc61c8700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
v4l2_mmap+0x146/0x1f0 drivers/media/v4l2-core/v4l2-dev.c:401
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
call_mmap include/linux/fs.h:1826 [inline]
mmap_region+0xc94/0x16b0 mm/mmap.c:1757
CR2: 00007fbbaabf1000 CR3: 00000000af593000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
do_mmap+0x8e8/0x1080 mm/mmap.c:1530
Call Trace:
do_mmap_pgoff include/linux/mm.h:2329 [inline]
vm_mmap_pgoff+0x197/0x200 mm/util.c:357
__list_del_entry include/linux/list.h:117 [inline]
list_del include/linux/list.h:125 [inline]
cbs_destroy+0x81/0x280 net/sched/sch_cbs.c:448
qdisc_create+0xb70/0x1130 net/sched/sch_api.c:1204
ksys_mmap_pgoff+0x298/0x5a0 mm/mmap.c:1580
tc_modify_qdisc+0x50d/0x1a80 net/sched/sch_api.c:1572
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
rtnetlink_rcv_msg+0x453/0xb80 net/core/rtnetlink.c:4782
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fa6efbe2279
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa6ee536168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fa6efcf5050 RCX: 00007fa6efbe2279
RDX: 0000000000000002 RSI: 0000000000096000 RDI: 0000000020ffd000
netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463
RBP: 00007fa6ee5361d0 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc360eb77f R14: 00007fa6ee536300 R15: 0000000000022000
netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline]
netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351
netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
__sys_sendmsg net/socket.c:2265 [inline]
__do_sys_sendmsg net/socket.c:2274 [inline]
__se_sys_sendmsg net/socket.c:2272 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f8bc7853279
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8bc61c8168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8bc7965f80 RCX: 00007f8bc7853279
RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000005
RBP: 00007f8bc61c81d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc55f7199f R14: 00007f8bc61c8300 R15: 0000000000022000
Modules linked in:
---[ end trace c5ad7c3732e6b1de ]---
RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51
Code: 0f 84 30 52 85 04 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 31 52 85 04 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 e8 51 85 04 49 8d 7d
RSP: 0018:ffff888056fc74e8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880b43dedc0 RCX: ffffffff814bdebb
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880b43df0e8
RBP: ffff8880b43df0e0 R08: 0000000000000001 R09: fffffbfff15cead8
R10: ffffffff8ae756c3 R11: 0000000000000000 R12: 0000000000000000
Remapping vmalloc memory, error: -12
R13: 0000000000000000 R14: ffff8880b43df040 R15: ffff8880b43df0e8
FS: 00007f8bc61c8700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbbaabf1000 CR3: 00000000af593000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 0f 84 30 52 85 04 je 0x4855236
6: 48 b8 00 02 00 00 00 movabs $0xdead000000000200,%rax
d: 00 ad de
10: 49 39 c4 cmp %rax,%r12
13: 0f 84 31 52 85 04 je 0x485524a
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 4c 89 e2 mov %r12,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 75 51 jne 0x81
30: 49 8b 14 24 mov (%r12),%rdx
34: 48 39 ea cmp %rbp,%rdx
37: 0f 85 e8 51 85 04 jne 0x4855225
3d: 49 rex.WB
3e: 8d .byte 0x8d
3f: 7d .byte 0x7d