./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor931395040

<...>
Warning: Permanently added '10.128.1.115' (ED25519) to the list of known hosts.
execve("./syz-executor931395040", ["./syz-executor931395040"], 0x7fff4d111f70 /* 10 vars */) = 0
brk(NULL)                               = 0x55558dc18000
brk(0x55558dc18d00)                     = 0x55558dc18d00
arch_prctl(ARCH_SET_FS, 0x55558dc18380) = 0
set_tid_address(0x55558dc18650)         = 5080
set_robust_list(0x55558dc18660, 24)     = 0
rseq(0x55558dc18ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor931395040", 4096) = 27
getrandom("\xcc\xab\x80\x57\xd9\x55\xfe\x75", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55558dc18d00
brk(0x55558dc39d00)                     = 0x55558dc39d00
brk(0x55558dc3a000)                     = 0x55558dc3a000
mprotect(0x7f4cdb49c000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
open("./bus", O_RDONLY|O_CREAT|O_EXCL|O_TRUNC|O_SYNC|O_NOATIME|0x3c, 000) = 3
mmap(0x20000000, 6291456, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_LOCKED|1<<MAP_HUGE_SHIFT, 3, 0) = 0x20000000
[   57.813094][ T5080] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
[   57.825806][ T5080] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[   57.834291][ T5080] CPU: 1 PID: 5080 Comm: syz-executor931 Not tainted 6.9.0-rc2-next-20240405-syzkaller #0
[   57.844776][ T5080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[   57.855111][ T5080] RIP: 0010:hpage_collapse_scan_file+0x1ea3/0x63e0
[   57.862237][ T5080] Code: 48 8d bc 24 30 02 00 00 e8 9a a1 f9 ff 4c 8b bc 24 30 02 00 00 49 8d 5f 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 6f a1 f9 ff 48 8b 1b 48 89 de 48 83
[   57.882021][ T5080] RSP: 0018:ffffc9000340f420 EFLAGS: 00010247
[   57.888087][ T5080] RAX: 0000000000000000 RBX: 0000000000000006 RCX: dffffc0000000000
[   57.896401][ T5080] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   57.904538][ T5080] RBP: ffffc9000340f7d0 R08: ffffffff81cb9212 R09: 1ffffffff1f5802d
[   57.912604][ T5080] R10: dffffc0000000000 R11: fffffbfff1f5802e R12: ffffc9000340f6b0
[   57.921002][ T5080] R13: 0000000000000000 R14: ffffc9000340f5f0 R15: fffffffffffffffe
[   57.929137][ T5080] FS:  000055558dc18380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
[   57.938082][ T5080] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.944656][ T5080] CR2: 0000000020000240 CR3: 000000006ee40000 CR4: 00000000003506f0
[   57.952706][ T5080] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   57.960671][ T5080] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   57.968641][ T5080] Call Trace:
[   57.971943][ T5080]  <TASK>
[   57.974864][ T5080]  ? __die_body+0x88/0xe0
[   57.979193][ T5080]  ? die_addr+0x108/0x140
[   57.983514][ T5080]  ? exc_general_protection+0x3dd/0x5d0
[   57.989077][ T5080]  ? asm_exc_general_protection+0x26/0x30
[   57.994837][ T5080]  ? __filemap_get_folio+0x252/0xbb0
[   58.000116][ T5080]  ? hpage_collapse_scan_file+0x1ea3/0x63e0
[   58.006006][ T5080]  ? hpage_collapse_scan_file+0x27c/0x63e0
[   58.011806][ T5080]  ? __pfx_hpage_collapse_scan_file+0x10/0x10
[   58.017949][ T5080]  ? madvise_collapse+0x245/0xcc0
[   58.023125][ T5080]  ? __pfx___up_read+0x10/0x10
[   58.027912][ T5080]  madvise_collapse+0x561/0xcc0
[   58.032858][ T5080]  ? __pfx_madvise_collapse+0x10/0x10
[   58.038232][ T5080]  ? blk_start_plug+0x70/0x1b0
[   58.043171][ T5080]  do_madvise+0xc3c/0x44a0
[   58.047588][ T5080]  ? __pfx_do_madvise+0x10/0x10
[   58.052609][ T5080]  ? do_raw_spin_lock+0x14f/0x370
[   58.057729][ T5080]  ? lockdep_hardirqs_on_prepare+0x43d/0x780
[   58.063878][ T5080]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[   58.070414][ T5080]  ? _raw_spin_unlock_irq+0x23/0x50
[   58.076059][ T5080]  ? lockdep_hardirqs_on+0x99/0x150
[   58.081335][ T5080]  ? _raw_spin_unlock_irq+0x2e/0x50
[   58.086562][ T5080]  ? ptrace_notify+0x279/0x380
[   58.091682][ T5080]  ? __pfx_ptrace_notify+0x10/0x10
[   58.096890][ T5080]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[   58.103293][ T5080]  ? do_syscall_64+0x10a/0x240
[   58.108051][ T5080]  __x64_sys_madvise+0xa6/0xc0
[   58.112811][ T5080]  do_syscall_64+0xfb/0x240
[   58.117315][ T5080]  entry_SYSCALL_64_after_hwframe+0x72/0x7a
[   58.123206][ T5080] RIP: 0033:0x7f4cdb4292e9
[   58.127622][ T5080] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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
[   58.147531][ T5080] RSP: 002b:00007fff99038cd8 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
[   58.155946][ T5080] RAX: ffffffffffffffda RBX: 00007fff99038eb8 RCX: 00007f4cdb4292e9
[   58.163910][ T5080] RDX: 0000000000000019 RSI: 0000000000600722 RDI: 0000000020000000
[   58.171875][ T5080] RBP: 00007f4cdb49c610 R08: 0000000000000000 R09: 0000000000000000
[   58.180009][ T5080] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000001
[   58.188086][ T5080] R13: 00007fff99038ea8 R14: 0000000000000001 R15: 0000000000000001
[   58.196227][ T5080]  </TASK>
[   58.199249][ T5080] Modules linked in:
[   58.203368][ T5080] ---[ end trace 0000000000000000 ]---
[   58.209098][ T5080] RIP: 0010:hpage_collapse_scan_file+0x1ea3/0x63e0
[   58.215820][ T5080] Code: 48 8d bc 24 30 02 00 00 e8 9a a1 f9 ff 4c 8b bc 24 30 02 00 00 49 8d 5f 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 6f a1 f9 ff 48 8b 1b 48 89 de 48 83
[   58.235829][ T5080] RSP: 0018:ffffc9000340f420 EFLAGS: 00010247
[   58.242151][ T5080] RAX: 0000000000000000 RBX: 0000000000000006 RCX: dffffc0000000000
[   58.250260][ T5080] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[   58.258336][ T5080] RBP: ffffc9000340f7d0 R08: ffffffff81cb9212 R09: 1ffffffff1f5802d
[   58.266468][ T5080] R10: dffffc0000000000 R11: fffffbfff1f5802e R12: ffffc9000340f6b0
[   58.274529][ T5080] R13: 0000000000000000 R14: ffffc9000340f5f0 R15: fffffffffffffffe
[   58.282715][ T5080] FS:  000055558dc18380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
[   58.291804][ T5080] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   58.298382][ T5080] CR2: 0000000020000240 CR3: 000000006ee40000 CR4: 00000000003506f0
[   58.306394][ T5080] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   58.314986][ T5080] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   58.323610][ T5080] Kernel panic - not syncing: Fatal exception
[   58.330166][ T5080] Kernel Offset: disabled
[   58.334770][ T5080] Rebooting in 86400 seconds..