syzbot


general protection fault in anon_vma_interval_tree_insert

Status: auto-closed as invalid on 2020/12/13 06:13
Reported-by: syzbot+1a6de86686bf01a6084f@syzkaller.appspotmail.com
First crash: 831d, last: 750d
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 general protection fault in anon_vma_interval_tree_insert 1 533d 533d 0/1 auto-closed as invalid on 2021/08/16 07:22
linux-4.19 general protection fault in anon_vma_interval_tree_insert 1 509d 509d 0/1 auto-closed as invalid on 2021/09/09 17:59
upstream general protection fault in anon_vma_interval_tree_insert (2) 4 312d 395d 0/24 auto-closed as invalid on 2022/02/24 00:52

Sample crash report:
general protection fault, probably for non-canonical address 0xe00edcee000ee0f1: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x0077077000770788-0x007707700077078f]
CPU: 1 PID: 3912 Comm: systemd-udevd Not tainted 5.9.0-rc4-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:71 [inline]
RIP: 0010:anon_vma_interval_tree_insert+0x18f/0x4c0 mm/interval_tree.c:82
Code: 03 80 3c 2a 00 0f 85 75 02 00 00 49 8b 17 48 85 d2 0f 84 9e 00 00 00 48 89 d3 e8 ec 2d d2 ff 48 8d 7b 18 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 42 02 00 00 4c 8b 7b 18 4c 89 e7 4c 89 fe e8 e8
RSP: 0018:ffffc9000527f9d8 EFLAGS: 00010202
RAX: 000ee0ee000ee0f1 RBX: 0077077000770770 RCX: 1ffff11008eb0e02
RDX: ffff8880a19fa440 RSI: ffffffff81a21ff4 RDI: 0077077000770788
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffff888096fb2417
R10: 0000000000000000 R11: 0000000000000001 R12: 00000007f2ab199e
R13: 00000007f2ab199b R14: ffff888047587000 R15: ffff888047587010
FS:  00007f2ab28688c0(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f728000 CR3: 00000000a3c33000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 anon_vma_chain_link mm/rmap.c:151 [inline]
 anon_vma_fork+0x415/0x630 mm/rmap.c:376
 dup_mmap kernel/fork.c:548 [inline]
 dup_mm+0x944/0x1300 kernel/fork.c:1354
 copy_mm kernel/fork.c:1410 [inline]
 copy_process+0x28e4/0x6920 kernel/fork.c:2069
 _do_fork+0xe8/0xb10 kernel/fork.c:2428
 __do_sys_clone+0xc8/0x110 kernel/fork.c:2545
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f2ab16b838b
Code: db 45 85 f6 0f 85 95 01 00 00 64 4c 8b 04 25 10 00 00 00 31 d2 4d 8d 90 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 de 00 00 00 85 c0 41 89 c5 0f 85 e5 00 00
RSP: 002b:00007ffc8865b7e0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffc8865b7e0 RCX: 00007f2ab16b838b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffc8865b830 R08: 00007f2ab28688c0 R09: 0000000000000210
R10: 00007f2ab2868b90 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000020 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 3151dda2f6c8ace5 ]---
RIP: 0010:__anon_vma_interval_tree_insert mm/interval_tree.c:71 [inline]
RIP: 0010:anon_vma_interval_tree_insert+0x18f/0x4c0 mm/interval_tree.c:82
Code: 03 80 3c 2a 00 0f 85 75 02 00 00 49 8b 17 48 85 d2 0f 84 9e 00 00 00 48 89 d3 e8 ec 2d d2 ff 48 8d 7b 18 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 42 02 00 00 4c 8b 7b 18 4c 89 e7 4c 89 fe e8 e8
RSP: 0018:ffffc9000527f9d8 EFLAGS: 00010202
RAX: 000ee0ee000ee0f1 RBX: 0077077000770770 RCX: 1ffff11008eb0e02
RDX: ffff8880a19fa440 RSI: ffffffff81a21ff4 RDI: 0077077000770788
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffff888096fb2417
R10: 0000000000000000 R11: 0000000000000001 R12: 00000007f2ab199e
R13: 00000007f2ab199b R14: ffff888047587000 R15: ffff888047587010
FS:  00007f2ab28688c0(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000744138 CR3: 00000000a3c33000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/09/14 06:12 upstream e4c26faa426c 2d3cdd63 .config log report
ci-upstream-kasan-gce-selinux-root 2020/09/07 12:07 upstream f4d51dffc6c0 abf9ba4f .config log report
ci-upstream-kasan-gce-root 2020/06/24 23:43 upstream 7ae77150d94d 54566aff .config log report
* Struck through repros no longer work on HEAD.