syzbot


WARNING in validate_mm

Status: auto-obsoleted due to no activity on 2023/09/11 20:09
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+a85a0b4b0f39dca529a5@syzkaller.appspotmail.com
First crash: 312d, last: 310d
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly mm report (Jul 2023) 0 (1) 2023/07/10 12:44
[syzbot] [mm?] WARNING in validate_mm 0 (1) 2023/07/05 22:38

Sample crash report:
owner ffff88807cee5940 exe_file ffff888028ce6f00
notifier_subscriptions 0000000000000000
numa_next_scan 4295297648 numa_scan_offset 0 numa_scan_seq 0
tlb_flush_pending 1
def_flags: 0x0()
------------[ cut here ]------------
WARNING: CPU: 0 PID: 18358 at mm/mmap.c:314 validate_mm+0x42a/0x500 mm/mmap.c:314
Modules linked in:
CPU: 0 PID: 18358 Comm: syz-executor.2 Not tainted 6.4.0-syzkaller-10173-ga901a3568fd2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:validate_mm+0x42a/0x500 mm/mmap.c:314
Code: 28 e8 5a 98 fa ff c6 05 96 e3 b0 0c 01 0f 0b e9 09 fe ff ff e8 77 e1 b9 ff 48 8b 7c 24 28 e8 3d 98 fa ff c6 05 7a e3 b0 0c 01 <0f> 0b e9 46 ff ff ff e8 5a e1 b9 ff 44 8b 74 24 1c eb 08 e8 4e e1
RSP: 0018:ffffc90006a279a0 EFLAGS: 00010282
RAX: 0000000000000330 RBX: 0000000000000000 RCX: 3ddfd82186994a00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90006a27ad0 R08: ffffffff816f481c R09: 1ffff92000d44e5c
R10: dffffc0000000000 R11: fffff52000d44e5d R12: dffffc0000000000
R13: ffffc90006a27a20 R14: ffff888024681500 R15: 00007f2d1ec14000
FS:  00007f2d1ec97700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f690424b000 CR3: 000000001ebc5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_vmi_align_munmap+0x13b1/0x15c0 mm/mmap.c:2561
 do_vmi_munmap+0x24d/0x2d0 mm/mmap.c:2619
 __vm_munmap+0x230/0x450 mm/mmap.c:2899
 __do_sys_munmap mm/mmap.c:2916 [inline]
 __se_sys_munmap mm/mmap.c:2913 [inline]
 __x64_sys_munmap+0x69/0x80 mm/mmap.c:2913
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2d1de8c467
Code: 00 00 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb 85 66 2e 0f 1f 84 00 00 00 00 00 90 b8 0b 00 00 00 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:00007f2d1ec96f38 EFLAGS: 00000246 ORIG_RAX: 000000000000000b
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2d1de8c467
RDX: 0000000000010000 RSI: 0000000000010000 RDI: 00007f2d145ff000
RBP: 00007f2d145ff000 R08: 0000000000000000 R09: 000000000000028b
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2d1ec96fdc R14: 00007f2d1ec96fe0 R15: 0000000020000382
 </TASK>

Crashes (11):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/07/03 20:09 upstream a901a3568fd2 6e553898 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in validate_mm
2023/07/03 06:12 upstream a901a3568fd2 bfc47836 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in validate_mm
2023/07/02 22:23 upstream 995b406c7e97 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in validate_mm
2023/07/02 12:56 upstream dfab92f27c60 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in validate_mm
2023/07/02 09:11 upstream dfab92f27c60 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in validate_mm
2023/07/02 07:37 upstream dfab92f27c60 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in validate_mm
2023/07/02 06:53 upstream dfab92f27c60 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in validate_mm
2023/07/02 05:29 upstream dfab92f27c60 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in validate_mm
2023/07/02 00:41 upstream f8566aa4f176 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in validate_mm
2023/07/01 22:28 upstream f8566aa4f176 bfc47836 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in validate_mm
2023/07/02 14:12 upstream 995b406c7e97 bfc47836 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in validate_mm
* Struck through repros no longer work on HEAD.