audit: type=1804 audit(1678120076.892:789): pid=7489 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1907606393/syzkaller.PekJQF/997/file0" dev="sda1" ino=14529 res=1 overlayfs: failed to resolve './file1': -2 overlayfs: upperdir is in-use as upperdir/workdir of another mount, mount with '-o index=off' to override exclusive upperdir protection. BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. audit: type=1804 audit(1678120076.972:790): pid=7501 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir3084616014/syzkaller.FeSuY8/787/bus" dev="sda1" ino=14513 res=1 CPU: 1 PID: 7484 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:2259 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2371 [inline] validate_chain kernel/locking/lockdep.c:2391 [inline] __lock_acquire.cold+0x420/0x57e kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 seqcount_lockdep_reader_access include/linux/seqlock.h:81 [inline] read_seqcount_begin include/linux/seqlock.h:164 [inline] ktime_get+0xd0/0x2f0 kernel/time/timekeeping.c:756 hrtimer_expires_remaining include/linux/hrtimer.h:285 [inline] __hrtimer_get_remaining+0xd7/0x1d0 kernel/time/hrtimer.c:1260 hrtimer_get_remaining include/linux/hrtimer.h:425 [inline] perf_swevent_cancel_hrtimer kernel/events/core.c:9297 [inline] perf_swevent_cancel_hrtimer kernel/events/core.c:9292 [inline] cpu_clock_event_stop kernel/events/core.c:9351 [inline] cpu_clock_event_del+0xa3/0x100 kernel/events/core.c:9366 event_sched_out+0x34d/0xca0 kernel/events/core.c:2014 group_sched_out.part.0+0x110/0x3f0 kernel/events/core.c:2047 group_sched_out kernel/events/core.c:2042 [inline] ctx_sched_out+0x8eb/0xbf0 kernel/events/core.c:2964 task_ctx_sched_out+0x5b/0x80 kernel/events/core.c:2421 perf_event_context_sched_out kernel/events/core.c:3146 [inline] __perf_event_task_sched_out+0xa5b/0x1470 kernel/events/core.c:3237 perf_event_task_sched_out include/linux/perf_event.h:1132 [inline] prepare_task_switch kernel/sched/core.c:2612 [inline] context_switch kernel/sched/core.c:2793 [inline] __schedule+0xd8a/0x2040 kernel/sched/core.c:3517 preempt_schedule_irq+0xb0/0x140 kernel/sched/core.c:3744 retint_kernel+0x1b/0x2d RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:23 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:67 [inline] RIP: 0010:write_comp_data+0xf/0x70 kernel/kcov.c:122 Code: 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 c3 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 25 c0 df 01 00 <65> 8b 05 7a 59 9f 7e a9 00 01 1f 00 75 4f 8b 86 60 13 00 00 83 f8 RSP: 0018:ffff8880226cf3e0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888030fe61c0 RBX: 0000000000000000 RCX: ffffffff816cf0bd RDX: 0000000000000000 RSI: ffff888030fe61c0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000074071 R12: dffffc0000000000 R13: 00007f9d0a5b00f9 R14: 0000000000000000 R15: 0000000000000000 latch_tree_find include/linux/rbtree_latch.h:209 [inline] bpf_prog_kallsyms_find.part.0+0x16d/0x270 kernel/bpf/core.c:512 bpf_prog_kallsyms_find include/linux/rcupdate.h:628 [inline] is_bpf_text_address+0x196/0x1b0 kernel/bpf/core.c:547 kernel_text_address kernel/extable.c:152 [inline] kernel_text_address+0xbd/0xf0 kernel/extable.c:122 __kernel_text_address+0x9/0x30 kernel/extable.c:107 unwind_get_return_address arch/x86/kernel/unwind_orc.c:297 [inline] unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:292 __save_stack_trace+0xaf/0x190 arch/x86/kernel/stacktrace.c:45 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 kmem_cache_alloc+0x122/0x370 mm/slab.c:3559 kmem_cache_zalloc include/linux/slab.h:699 [inline] __kernfs_new_node+0xd2/0x680 fs/kernfs/dir.c:633 kernfs_new_node+0x92/0x120 fs/kernfs/dir.c:693 __kernfs_create_file+0x51/0x340 fs/kernfs/file.c:992 sysfs_add_file_mode_ns+0x226/0x540 fs/sysfs/file.c:307 sysfs_create_file_ns+0x131/0x1b0 fs/sysfs/file.c:332 sysfs_create_file include/linux/sysfs.h:529 [inline] elv_register_queue+0xf7/0x280 block/elevator.c:851 blk_register_queue+0x253/0x5b0 block/blk-sysfs.c:942 __device_add_disk+0xe1d/0x10c0 block/genhd.c:725 add_disk include/linux/genhd.h:409 [inline] loop_add+0x628/0x8a0 drivers/block/loop.c:2048 loop_control_ioctl drivers/block/loop.c:2149 [inline] loop_control_ioctl+0x16c/0x480 drivers/block/loop.c:2131 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f9d0a5b00f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9d08b22168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9d0a6cff80 RCX: 00007f9d0a5b00f9 RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000006 RBP: 00007f9d0a60bae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff26ac175f R14: 00007f9d08b22300 R15: 0000000000022000 audit: type=1804 audit(1678120077.652:791): pid=7499 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.4" name="/root/syzkaller-testdir3084616014/syzkaller.FeSuY8/787/bus" dev="sda1" ino=14513 res=1 ieee80211 phy1393: Selected rate control algorithm 'minstrel_ht' IPVS: ftp: loaded support on port[0] = 21 ieee80211 phy1394: Selected rate control algorithm 'minstrel_ht' audit: type=1804 audit(1678120078.902:792): pid=7556 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir3084616014/syzkaller.FeSuY8/788/bus" dev="sda1" ino=14610 res=1 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1678120078.942:793): pid=7564 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.4" name="/root/syzkaller-testdir3084616014/syzkaller.FeSuY8/788/bus" dev="sda1" ino=14610 res=1 device bridge0 entered promiscuous mode IPVS: ftp: loaded support on port[0] = 21 audit: type=1804 audit(1678120078.962:794): pid=7558 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir1907606393/syzkaller.PekJQF/999/file0" dev="sda1" ino=14770 res=1 ieee80211 phy1395: Selected rate control algorithm 'minstrel_ht' ieee80211 phy1396: Selected rate control algorithm 'minstrel_ht' ieee80211 phy1397: Selected rate control algorithm 'minstrel_ht' IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 ieee80211 phy1398: Selected rate control algorithm 'minstrel_ht' IPVS: ftp: loaded support on port[0] = 21 ieee80211 phy1399: Selected rate control algorithm 'minstrel_ht' IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 x_tables: duplicate underflow at hook 1 IPVS: ftp: loaded support on port[0] = 21 x_tables: duplicate underflow at hook 1 x_tables: duplicate underflow at hook 1 BTRFS info (device loop0): enabling inode map caching BTRFS warning (device loop0): excessive commit interval 622039222 BTRFS info (device loop0): force zlib compression, level 3 BTRFS info (device loop0): using free space tree BTRFS info (device loop0): has skinny extents overlayfs: unrecognized mount option "upQ¤­’vŽ+n2*Áô&operdir=./bus" or missing value audit: type=1804 audit(1678120087.403:795): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 audit: type=1804 audit(1678120087.423:796): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 audit: type=1804 audit(1678120087.423:797): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 audit: type=1804 audit(1678120087.433:798): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 BTRFS info (device loop0): enabling inode map caching BTRFS warning (device loop0): excessive commit interval 622039222 audit: type=1804 audit(1678120087.433:799): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 BTRFS info (device loop0): force zlib compression, level 3 BTRFS info (device loop0): using free space tree BTRFS info (device loop0): has skinny extents audit: type=1804 audit(1678120087.433:800): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 audit: type=1804 audit(1678120087.433:801): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 audit: type=1804 audit(1678120087.433:802): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 audit: type=1804 audit(1678120087.433:803): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 audit: type=1804 audit(1678120087.433:804): pid=7881 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2607/bus" dev="sda1" ino=13881 res=1 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 BTRFS info (device loop0): enabling inode map caching BTRFS warning (device loop0): excessive commit interval 622039222 BTRFS info (device loop0): force zlib compression, level 3 BTRFS info (device loop0): using free space tree BTRFS info (device loop0): has skinny extents xt_SECMARK: invalid mode: 0 xt_SECMARK: invalid mode: 0 xt_SECMARK: invalid mode: 0 ieee80211 phy1400: Selected rate control algorithm 'minstrel_ht' xt_SECMARK: invalid mode: 0 xt_SECMARK: invalid mode: 0 overlayfs: unrecognized mount option "upQ¤­’vŽ+n2*Áô&operdir=./bus" or missing value overlayfs: unrecognized mount option "upQ¤­’vŽ+n2*Áô&operdir=./bus" or missing value 9pnet: Insufficient options for proto=fd ieee80211 phy1401: Selected rate control algorithm 'minstrel_ht' ieee80211 phy1402: Selected rate control algorithm 'minstrel_ht' 9pnet: Insufficient options for proto=fd 9pnet: Insufficient options for proto=fd ieee80211 phy1403: Selected rate control algorithm 'minstrel_ht' ieee80211 phy1404: Selected rate control algorithm 'minstrel_ht' ieee80211 phy1405: Selected rate control algorithm 'minstrel_ht' kauditd_printk_skb: 112 callbacks suppressed audit: type=1804 audit(1678120092.514:917): pid=8220 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir2182314112/syzkaller.7dCxQL/2617/bus" dev="sda1" ino=14019 res=1 9pnet: Insufficient options for proto=fd ieee80211 phy1406: Selected rate control algorithm 'minstrel_ht' IPVS: ftp: loaded support on port[0] = 21 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. ieee80211 phy1407: Selected rate control algorithm 'minstrel_ht' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. ieee80211 phy1408: Selected rate control algorithm 'minstrel_ht' ieee80211 phy1409: Selected rate control algorithm 'minstrel_ht' ieee80211 phy1410: Selected rate control algorithm 'minstrel_ht' IPVS: ftp: loaded support on port[0] = 21 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. IPVS: ftp: loaded support on port[0] = 21 ieee80211 phy1411: Selected rate control algorithm 'minstrel_ht' ---------------- Code disassembly (best guess): 0: 8b 11 mov (%rcx),%edx 2: 48 83 c2 01 add $0x1,%rdx 6: 48 39 d0 cmp %rdx,%rax 9: 76 07 jbe 0x12 b: 48 89 34 d1 mov %rsi,(%rcx,%rdx,8) f: 48 89 11 mov %rdx,(%rcx) 12: c3 retq 13: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 1a: 00 1b: 49 89 f1 mov %rsi,%r9 1e: 49 89 fa mov %rdi,%r10 21: 65 48 8b 34 25 c0 df mov %gs:0x1dfc0,%rsi 28: 01 00 * 2a: 65 8b 05 7a 59 9f 7e mov %gs:0x7e9f597a(%rip),%eax # 0x7e9f59ab <-- trapping instruction 31: a9 00 01 1f 00 test $0x1f0100,%eax 36: 75 4f jne 0x87 38: 8b 86 60 13 00 00 mov 0x1360(%rsi),%eax 3e: 83 .byte 0x83 3f: f8 clc