RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fce7a9466d4
R13: 00000000004c7933 R14: 00000000004dd328 R15: 0000000000000007
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 31955 Comm: syz-executor.0 Not tainted 4.19.74 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:qdisc_destroy+0x2f/0x690 net/sched/sch_generic.c:953
Code: 57 41 56 41 55 41 54 49 89 fc 53 48 83 ec 28 e8 97 36 ed fb 49 8d 7c 24 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e d5 04 00 00 41 8b 5c 24 10 31
RSP: 0018:ffff8880529ff448 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88809b56c940 RCX: ffffc90005e6f000
RDX: 0000000000000002 RSI: ffffffff857e2bf9 RDI: 0000000000000010
RBP: ffff8880529ff498 R08: ffff8880989f6700 R09: ffffed1015d04733
R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000
R13: ffff88809b56c940 R14: ffff88805435ee00 R15: ffff88809b56c97c
FS:  00007fce7a946700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000002090b68 CR3: 00000000a839f000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 sfb_destroy+0x61/0x80 net/sched/sch_sfb.c:472
 qdisc_create+0xaa6/0x1230 net/sched/sch_api.c:1203
 tc_modify_qdisc+0x51b/0x1bdc net/sched/sch_api.c:1570
 rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:4747
 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4765
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x537/0x720 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:622 [inline]
 sock_sendmsg+0xd7/0x130 net/socket.c:632
 ___sys_sendmsg+0x803/0x920 net/socket.c:2115
 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153
 __do_sys_sendmsg net/socket.c:2162 [inline]
 __se_sys_sendmsg net/socket.c:2160 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459a09
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fce7a945c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fce7a945c90 RCX: 0000000000459a09
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fce7a9466d4
R13: 00000000004c7933 R14: 00000000004dd328 R15: 0000000000000007
Modules linked in:
---[ end trace a89948df06bf533c ]---
RIP: 0010:qdisc_destroy+0x2f/0x690 net/sched/sch_generic.c:953
kobject: 'loop2' (0000000003308b21): kobject_uevent_env
Code: 57 41 56 41 55 41 54 49 89 fc 53 48 83 ec 28 e8 97 36 ed fb 49 8d 7c 24 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e d5 04 00 00 41 8b 5c 24 10 31
kobject: 'loop2' (0000000003308b21): fill_kobj_path: path = '/devices/virtual/block/loop2'
RSP: 0018:ffff8880529ff448 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88809b56c940 RCX: ffffc90005e6f000
RDX: 0000000000000002 RSI: ffffffff857e2bf9 RDI: 0000000000000010
RBP: ffff8880529ff498 R08: ffff8880989f6700 R09: ffffed1015d04733
R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000
R13: ffff88809b56c940 R14: ffff88805435ee00 R15: ffff88809b56c97c
FS:  00007fce7a946700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 00000000a839f000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400