./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3825613940 <...> DUID 00:04:ae:1e:d5:49:b7:3c:3f:84:b3:e9:d7:e4:a5:00:02:90 forked to background, child pid 3187 [ 26.196400][ T3188] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.207093][ T3188] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.89' (ECDSA) to the list of known hosts. execve("./syz-executor3825613940", ["./syz-executor3825613940"], 0x7fff4aa35ce0 /* 10 vars */) = 0 brk(NULL) = 0x555555b4f000 brk(0x555555b4fc40) = 0x555555b4fc40 arch_prctl(ARCH_SET_FS, 0x555555b4f300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3825613940", 4096) = 28 brk(0x555555b70c40) = 0x555555b70c40 brk(0x555555b71000) = 0x555555b71000 mprotect(0x7f8f42ef6000, 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 mmap(0x20000000, 11755520, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_ANONYMOUS|MAP_POPULATE|MAP_DENYWRITE|MAP_STACK|MAP_HUGETLB, -1, 0) = 0x20000000 madvise(0x20000000, 6291459, MADV_REMOVE) = 0 madvise(0x20800000, 8388608, MADV_DONTNEED) = 0 syzkaller login: [ 48.386938][ T3608] ------------[ cut here ]------------ [ 48.392487][ T3608] kernel BUG at include/linux/mm.h:1529! [ 48.398215][ T3608] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 48.404283][ T3608] CPU: 1 PID: 3608 Comm: syz-executor382 Not tainted 6.0.0-rc7-syzkaller-00132-g987a926c1d8a #0 [ 48.414674][ T3608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 48.424710][ T3608] RIP: 0010:copy_hugetlb_page_range+0x1f16/0x2590 [ 48.431124][ T3608] Code: d0 2c ee ff 0f 0b e8 b9 da b7 ff 83 8c 24 00 01 00 00 01 48 8d bc 24 e0 00 00 00 e8 84 14 02 00 e9 5d ef ff ff e8 9a da b7 ff <0f> 0b e8 93 da b7 ff 0f 0b e8 8c da b7 ff 49 c1 e4 0e 48 8b 84 24 [ 48.450721][ T3608] RSP: 0018:ffffc9000359f5f0 EFLAGS: 00010293 [ 48.456770][ T3608] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 48.464724][ T3608] RDX: ffff88801f955880 RSI: ffffffff81c42d86 RDI: 0000000000000005 [ 48.472679][ T3608] RBP: ffffea0002d60000 R08: 0000000000000005 R09: 0000000000000000 [ 48.480633][ T3608] R10: 0000000000000001 R11: 1ffffffff20082c1 R12: ffffea0002d60008 [ 48.488584][ T3608] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000020000000 [ 48.496538][ T3608] FS: 0000555555b4f300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 48.505454][ T3608] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.512020][ T3608] CR2: 0000000020003200 CR3: 000000001c01c000 CR4: 00000000003506e0 [ 48.519981][ T3608] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.527937][ T3608] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.535890][ T3608] Call Trace: [ 48.539153][ T3608] [ 48.542078][ T3608] ? huge_pte_alloc+0x4c0/0x4c0 [ 48.546919][ T3608] ? lockdep_unlock+0x11b/0x290 [ 48.551751][ T3608] ? __lock_acquire+0x2567/0x56d0 [ 48.556771][ T3608] copy_page_range+0x2044/0x37d0 [ 48.561701][ T3608] ? find_held_lock+0x2d/0x110 [ 48.566448][ T3608] ? dup_mm+0x7a9/0x13a0 [ 48.570679][ T3608] ? handle_mm_fault+0x780/0x780 [ 48.575602][ T3608] ? validate_mm_rb+0x46/0x2d0 [ 48.580522][ T3608] ? down_write+0xde/0x150 [ 48.584930][ T3608] ? __vma_link_rb+0x553/0x710 [ 48.589678][ T3608] dup_mm+0xa99/0x13a0 [ 48.593733][ T3608] ? replace_mm_exe_file+0x480/0x480 [ 48.598999][ T3608] ? __raw_spin_lock_init+0x36/0x110 [ 48.604270][ T3608] copy_process+0x3ca6/0x7090 [ 48.608931][ T3608] ? find_held_lock+0x2d/0x110 [ 48.613691][ T3608] ? __cleanup_sighand+0xb0/0xb0 [ 48.618611][ T3608] ? _copy_from_user+0xf9/0x170 [ 48.623445][ T3608] kernel_clone+0xe7/0xab0 [ 48.627846][ T3608] ? create_io_thread+0xe0/0xe0 [ 48.632679][ T3608] ? do_raw_spin_lock+0x120/0x2a0 [ 48.637687][ T3608] __do_sys_clone3+0x1cd/0x2e0 [ 48.642435][ T3608] ? __do_sys_clone+0x100/0x100 [ 48.647274][ T3608] ? lock_downgrade+0x6e0/0x6e0 [ 48.652108][ T3608] ? _raw_spin_unlock_irq+0x1f/0x40 [ 48.657298][ T3608] ? _raw_spin_unlock_irq+0x1f/0x40 [ 48.662476][ T3608] ? lockdep_hardirqs_on+0x79/0x100 [ 48.667657][ T3608] ? _raw_spin_unlock_irq+0x2a/0x40 [ 48.672835][ T3608] ? ptrace_notify+0xfa/0x140 [ 48.677493][ T3608] do_syscall_64+0x35/0xb0 [ 48.681894][ T3608] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 48.687767][ T3608] RIP: 0033:0x7f8f42e89c39 [ 48.692169][ T3608] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 14 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 c0 ff ff ff f7 d8 64 89 01 48 [ 48.711757][ T3608] RSP: 002b:00007ffdaad18da8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 [ 48.720151][ T3608] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8f42e89c39 [ 48.728111][ T3608] RDX: 00007f8f42e89c39 RSI: 0000000000000058 RDI: 00007ffdaad18db0 [ 48.736072][ T3608] RBP: 00007f8f42e4dd80 R08: 0000000000000000 R09: 0000000000000000 [ 48.744116][ T3608] R10: 00007ffdaad18db0 R11: 0000000000000246 R12: 00007f8f42e4de10 [ 48.752071][ T3608] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 48.760057][ T3608] [ 48.763060][ T3608] Modules linked in: [ 48.767053][ T3608] ---[ end trace 0000000000000000 ]--- [ 48.772514][ T3608] RIP: 0010:copy_hugetlb_page_range+0x1f16/0x2590 [ 48.778974][ T3608] Code: d0 2c ee ff 0f 0b e8 b9 da b7 ff 83 8c 24 00 01 00 00 01 48 8d bc 24 e0 00 00 00 e8 84 14 02 00 e9 5d ef ff ff e8 9a da b7 ff <0f> 0b e8 93 da b7 ff 0f 0b e8 8c da b7 ff 49 c1 e4 0e 48 8b 84 24 [ 48.798609][ T3608] RSP: 0018:ffffc9000359f5f0 EFLAGS: 00010293 [ 48.804717][ T3608] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 48.812684][ T3608] RDX: ffff88801f955880 RSI: ffffffff81c42d86 RDI: 0000000000000005 [ 48.820664][ T3608] RBP: ffffea0002d60000 R08: 0000000000000005 R09: 0000000000000000 [ 48.828652][ T3608] R10: 0000000000000001 R11: 1ffffffff20082c1 R12: ffffea0002d60008 [ 48.836630][ T3608] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000020000000 [ 48.844619][ T3608] FS: 0000555555b4f300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 48.853531][ T3608] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.860132][ T3608] CR2: 0000000020003200 CR3: 000000001c01c000 CR4: 00000000003506e0 [ 48.868119][ T3608] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.876108][ T3608] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.884083][ T3608] Kernel panic - not syncing: Fatal exception [ 48.890319][ T3608] Kernel Offset: disabled [ 48.894722][ T3608] Rebooting in 86400 seconds..