swap_dup: Bad swap file entry 47ffc47fffff 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: 0 PID: 4417 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:lock_anon_vma_root mm/rmap.c:233 [inline] RIP: 0010:anon_vma_clone+0x111/0x5e0 mm/rmap.c:278 Code: 84 0b 02 00 00 e8 8f 3e d2 ff 49 8d 7d 08 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 f1 03 00 00 4d 8b 65 08 4c 89 e0 48 c1 e8 03 <80> 3c 18 00 0f 85 cf 03 00 00 4d 8b 3c 24 4c 8b 74 24 08 4d 39 fe RSP: 0018:ffff88802218fb10 EFLAGS: 00010206 RAX: 00ee000ee817e796 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff819046e1 RDI: ffff888000103d98 RBP: ffff888232a89ee0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000033c50e8b R12: 0770007740bf3cb0 R13: ffff888000103d90 R14: ffff888232a89e80 R15: 0000000000000001 FS: 00007f4256a50700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4256a506b8 CR3: 0000000022123000 CR4: 00000000003426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000b8fecd19 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: anon_vma_fork+0x82/0x630 mm/rmap.c:332 dup_mmap kernel/fork.c:504 [inline] dup_mm kernel/fork.c:1285 [inline] copy_mm kernel/fork.c:1341 [inline] copy_process.part.0+0x360f/0x8260 kernel/fork.c:1913 copy_process kernel/fork.c:1710 [inline] _do_fork+0x22f/0xf30 kernel/fork.c:2219 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f42580dae99 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4256a50168 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f42581edf60 RCX: 00007f42580dae99 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f4258135031 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff361c720f R14: 00007f4256a50300 R15: 0000000000022000 Modules linked in: kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access cgroup: fork rejected by pids controller in /system.slice/ssh.service general protection fault: 0000 [#2] PREEMPT SMP KASAN CPU: 1 PID: 5403 Comm: syz-executor.3 Tainted: G D 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__anon_vma_interval_tree_insert mm/interval_tree.c:72 [inline] RIP: 0010:anon_vma_interval_tree_insert+0x186/0x3d0 mm/interval_tree.c:83 Code: 03 80 3c 2a 00 0f 85 b1 01 00 00 49 8b 17 48 85 d2 0f 84 9e 00 00 00 48 89 d3 e8 05 e9 d8 ff 48 8d 7b 18 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 7e 01 00 00 4c 8b 7b 18 4c 89 e7 4c 89 fe e8 f1 RSP: 0018:ffff888022207ac8 EFLAGS: 00010206 RAX: 00ee000ee0000003 RBX: 0770007700000000 RCX: ffffffff81899ce5 RDX: 0000000000000000 RSI: ffffffff81899c6b RDI: 0770007700000018 RBP: dffffc0000000000 R08: 0000000000400200 R09: 000000055555699b R10: 0000000000000006 R11: 0000000033c50e8b R12: 00000005555569bc R13: 000000055555699b R14: ffff88820e373e70 R15: ffff888000103258 FS: 00007f4256a50700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000f038 CR3: 0000000022140000 CR4: 00000000003426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: anon_vma_chain_link mm/rmap.c:144 [inline] anon_vma_clone+0x23f/0x5e0 mm/rmap.c:279 anon_vma_fork+0x82/0x630 mm/rmap.c:332 dup_mmap kernel/fork.c:504 [inline] dup_mm kernel/fork.c:1285 [inline] copy_mm kernel/fork.c:1341 [inline] copy_process.part.0+0x360f/0x8260 kernel/fork.c:1913 copy_process kernel/fork.c:1710 [inline] _do_fork+0x22f/0xf30 kernel/fork.c:2219 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f42580dae99 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4256a50168 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f42581edf60 RCX: 00007f42580dae99 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f4258135031 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff361c720f R14: 00007f4256a50300 R15: 0000000000022000 Modules linked in: ---[ end trace b323742f79b355ae ]--- RIP: 0010:lock_anon_vma_root mm/rmap.c:233 [inline] RIP: 0010:anon_vma_clone+0x111/0x5e0 mm/rmap.c:278 Code: 84 0b 02 00 00 e8 8f 3e d2 ff 49 8d 7d 08 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 f1 03 00 00 4d 8b 65 08 4c 89 e0 48 c1 e8 03 <80> 3c 18 00 0f 85 cf 03 00 00 4d 8b 3c 24 4c 8b 74 24 08 4d 39 fe RSP: 0018:ffff88802218fb10 EFLAGS: 00010206 RAX: 00ee000ee817e796 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff819046e1 RDI: ffff888000103d98 RBP: ffff888232a89ee0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000033c50e8b R12: 0770007740bf3cb0 R13: ffff888000103d90 R14: ffff888232a89e80 R15: 0000000000000001 FS: 00007f4256a50700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8f213abfc0 CR3: 0000000022123000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000b8fecd19 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 0b 02 or (%rdx),%eax 2: 00 00 add %al,(%rax) 4: e8 8f 3e d2 ff callq 0xffd23e98 9: 49 8d 7d 08 lea 0x8(%r13),%rdi d: 48 89 f8 mov %rdi,%rax 10: 48 c1 e8 03 shr $0x3,%rax 14: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) 18: 0f 85 f1 03 00 00 jne 0x40f 1e: 4d 8b 65 08 mov 0x8(%r13),%r12 22: 4c 89 e0 mov %r12,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction 2d: 0f 85 cf 03 00 00 jne 0x402 33: 4d 8b 3c 24 mov (%r12),%r15 37: 4c 8b 74 24 08 mov 0x8(%rsp),%r14 3c: 4d 39 fe cmp %r15,%r14