syzbot


WARNING: zero-size vmalloc in vzalloc

Status: auto-obsoleted due to no activity on 2023/04/03 05:30
Subsystems: bpf
[Documentation on labels]
Reported-by: syzbot+87fd16ee5e117dd08972@syzkaller.appspotmail.com
First crash: 481d, last: 481d

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 15973 at mm/vmalloc.c:3108 __vmalloc_node_range+0x1036/0x1300 mm/vmalloc.c:3108
Modules linked in:
CPU: 1 PID: 15973 Comm: syz-executor.3 Not tainted 6.2.0-rc6-next-20230202-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:__vmalloc_node_range+0x1036/0x1300 mm/vmalloc.c:3108
Code: 00 65 48 2b 04 25 28 00 00 00 0f 85 7b 01 00 00 48 81 c4 58 01 00 00 4c 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 3a 3b bd ff <0f> 0b 45 31 e4 eb a3 e8 2e 3b bd ff 44 8b 64 24 68 41 83 cc 02 66
RSP: 0018:ffffc90015d7f6d0 EFLAGS: 00010216
RAX: 0000000000000bd2 RBX: dffffc0000000000 RCX: ffffc9000c7ef000
RDX: 0000000000040000 RSI: ffffffff81c78f96 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 1ffff1100ef9f7da R12: 0000000000000000
R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000000
FS:  00007f934abfe700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005599831f0190 CR3: 0000000029865000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __vmalloc_node mm/vmalloc.c:3246 [inline]
 vzalloc+0x6b/0x80 mm/vmalloc.c:3319
 bpf_check+0x1b8/0xae50 kernel/bpf/verifier.c:17253
 bpf_prog_load+0x16d9/0x21d0 kernel/bpf/syscall.c:2617
 __sys_bpf+0x1435/0x5100 kernel/bpf/syscall.c:4977
 __do_sys_bpf kernel/bpf/syscall.c:5081 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5079 [inline]
 __x64_sys_bpf+0x79/0xc0 kernel/bpf/syscall.c:5079
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f934c08c0c9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f934abfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f934c1ac050 RCX: 00007f934c08c0c9
RDX: 0000000000000080 RSI: 0000000020000180 RDI: 0000000000000005
RBP: 00007f934c0e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff8af372ef R14: 00007f934abfe300 R15: 0000000000022000
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/02/02 05:30 linux-next ea4dabbb4ad7 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING: zero-size vmalloc in vzalloc
* Struck through repros no longer work on HEAD.