general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 30619 Comm: syz-executor.5 Not tainted 4.19.91-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:__read_seqcount_begin include/linux/seqlock.h:113 [inline]
RIP: 0010:raw_read_seqcount_begin include/linux/seqlock.h:148 [inline]
RIP: 0010:hrtimer_active+0x11e/0x230 kernel/time/hrtimer.c:1327
Code: 48 39 c3 0f 84 d3 00 00 00 e8 ee 22 0f 00 48 8b 45 c8 80 38 00 0f 85 06 01 00 00 49 8b 5d 30 4c 8d 63 10 4c 89 e0 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
kobject: 'loop3' (0000000044898074): kobject_uevent_env
RSP: 0018:ffff888095577350 EFLAGS: 00010202
RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffc9000b8cb000
RDX: 000000000000c1fa RSI: ffffffff815c2152 RDI: ffff88808ad1d040
RBP: ffff8880955773a8 R08: ffff888032068500 R09: 0000000000000000
R10: ffffed10115a39bc R11: ffff88808ad1cde7 R12: 0000000000000010
R13: ffff88808ad1d040 R14: ffff888087c46ac0 R15: dffffc0000000000
FS:  00007fb6279e7700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'loop3' (0000000044898074): fill_kobj_path: path = '/devices/virtual/block/loop3'
CR2: 000000000075c000 CR3: 00000000962be000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kobject: 'loop1' (00000000a5f1cd1c): kobject_uevent_env
 hrtimer_try_to_cancel+0x74/0x5b0 kernel/time/hrtimer.c:1144
kobject: 'loop1' (00000000a5f1cd1c): fill_kobj_path: path = '/devices/virtual/block/loop1'
 hrtimer_cancel+0x20/0x40 kernel/time/hrtimer.c:1170
 qdisc_watchdog_cancel+0x16/0x20 net/sched/sch_api.c:632
 cbs_destroy+0x5e/0xd0 net/sched/sch_cbs.c:377
 qdisc_create+0xaa6/0x1230 net/sched/sch_api.c:1203
 tc_modify_qdisc+0x51b/0x1bd3 net/sched/sch_api.c:1571
 rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:4768
 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454
 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:4786
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x53a/0x730 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: 0033:0x45a919
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb6279e6c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a919
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb6279e76d4
R13: 00000000004c9a3a R14: 00000000004e1948 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop1' (00000000a5f1cd1c): kobject_uevent_env
kobject: 'loop1' (00000000a5f1cd1c): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop4' (0000000064304895): kobject_uevent_env
kobject: 'loop4' (0000000064304895): fill_kobj_path: path = '/devices/virtual/block/loop4'
kobject: 'loop0' (000000008c6eef48): kobject_uevent_env
kobject: 'loop0' (000000008c6eef48): fill_kobj_path: path = '/devices/virtual/block/loop0'
overlayfs: failed to resolve '': -2
kobject: 'loop3' (0000000044898074): kobject_uevent_env
kobject: 'loop3' (0000000044898074): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'loop1' (00000000a5f1cd1c): kobject_uevent_env
kobject: 'loop1' (00000000a5f1cd1c): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop1' (00000000a5f1cd1c): kobject_uevent_env
kobject: 'loop1' (00000000a5f1cd1c): fill_kobj_path: path = '/devices/virtual/block/loop1'
kobject: 'loop1' (00000000a5f1cd1c): kobject_uevent_env
kobject: 'nullb0' (000000003e6fd047): kobject_uevent_env
---[ end trace bd373f7604591cce ]---
RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline]
RIP: 0010:__read_seqcount_begin include/linux/seqlock.h:113 [inline]
RIP: 0010:raw_read_seqcount_begin include/linux/seqlock.h:148 [inline]
RIP: 0010:hrtimer_active+0x11e/0x230 kernel/time/hrtimer.c:1327
Code: 48 39 c3 0f 84 d3 00 00 00 e8 ee 22 0f 00 48 8b 45 c8 80 38 00 0f 85 06 01 00 00 49 8b 5d 30 4c 8d 63 10 4c 89 e0 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
kobject: 'loop1' (00000000a5f1cd1c): fill_kobj_path: path = '/devices/virtual/block/loop1'
RSP: 0018:ffff888095577350 EFLAGS: 00010202
kobject: 'nullb0' (000000003e6fd047): fill_kobj_path: path = '/devices/virtual/block/nullb0'
RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffc9000b8cb000
RDX: 000000000000c1fa RSI: ffffffff815c2152 RDI: ffff88808ad1d040
kobject: 'loop1' (00000000a5f1cd1c): kobject_uevent_env
RBP: ffff8880955773a8 R08: ffff888032068500 R09: 0000000000000000
R10: ffffed10115a39bc R11: ffff88808ad1cde7 R12: 0000000000000010
kobject: 'loop1' (00000000a5f1cd1c): fill_kobj_path: path = '/devices/virtual/block/loop1'
R13: ffff88808ad1d040 R14: ffff888087c46ac0 R15: dffffc0000000000
FS:  00007fb6279e7700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'nullb0' (000000003e6fd047): kobject_uevent_env
CR2: 00007fb6279a4db8 CR3: 00000000962be000 CR4: 00000000001406e0
kobject: 'nullb0' (000000003e6fd047): fill_kobj_path: path = '/devices/virtual/block/nullb0'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'loop1' (00000000a5f1cd1c): kobject_uevent_env
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'loop1' (00000000a5f1cd1c): fill_kobj_path: path = '/devices/virtual/block/loop1'