syzbot


general protection fault in dev_map_enqueue

Status: upstream: reported C repro on 2024/03/26 23:53
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+74f0fe424da0b5228a6f@syzkaller.appspotmail.com
First crash: 56d, last: 6h07m
Bug presence (2)
Date Name Commit Repro Result
2024/03/27 lts (merge base) 883d1a956208 C [report] general protection fault in dev_map_enqueue
2024/04/10 upstream (ToT) 2c71fdf02a95 C [report] general protection fault in dev_map_enqueue
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream general protection fault in dev_map_enqueue bpf net C 669 3h54m 56d 25/26 upstream: reported C repro on 2024/03/26 19:00
linux-6.1 general protection fault in dev_map_enqueue origin:upstream C 66 11h39m 56d 0/3 upstream: reported C repro on 2024/03/26 19:03

Sample crash report:
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 1711 Comm: syz-executor397 Not tainted 6.1.68-syzkaller-00096-geef3b6e52937 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:dev_map_enqueue+0x31/0x340 kernel/bpf/devmap.c:528
Code: 56 41 55 41 54 53 48 83 ec 18 48 89 55 c0 49 89 f7 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 f6 22 de ff 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 80 f6 24 00 4c 8b 33 48 83 c3 20
RSP: 0018:ffffc900036ff648 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888118ed2880
RDX: 0000000000000000 RSI: ffff888125adb070 RDI: 0000000000000000
RBP: ffffc900036ff688 R08: 0000000000000005 R09: ffffffff8410be05
R10: 0000000000000004 R11: ffff888118ed2880 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff8881f70364a0 R15: ffff888125adb070
FS:  00007f1c60abd6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200009c0 CR3: 0000000125b1d000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __xdp_do_redirect_frame net/core/filter.c:4268 [inline]
 xdp_do_redirect_frame+0x285/0x750 net/core/filter.c:4330
 xdp_test_run_batch net/bpf/test_run.c:314 [inline]
 bpf_test_run_xdp_live+0xc30/0x1f70 net/bpf/test_run.c:362
 bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1387
 bpf_prog_test_run+0x3b0/0x630 kernel/bpf/syscall.c:3635
 __sys_bpf+0x59f/0x7f0 kernel/bpf/syscall.c:4990
 __do_sys_bpf kernel/bpf/syscall.c:5076 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5074 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5074
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f1c60afc929
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c60abd238 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1c60b86328 RCX: 00007f1c60afc929
RDX: 0000000000000050 RSI: 0000000020000240 RDI: 000000000000000a
RBP: 00007f1c60b86320 R08: 00007f1c60abd6c0 R09: 00007f1c60abd6c0
R10: 00007f1c60abd6c0 R11: 0000000000000246 R12: 00007f1c60b53064
R13: 0000000000000000 R14: 00007ffeae5efc50 R15: 00007ffeae5efd38
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dev_map_enqueue+0x31/0x340 kernel/bpf/devmap.c:528
Code: 56 41 55 41 54 53 48 83 ec 18 48 89 55 c0 49 89 f7 48 89 fb 49 bc 00 00 00 00 00 fc ff df e8 f6 22 de ff 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 80 f6 24 00 4c 8b 33 48 83 c3 20
RSP: 0018:ffffc900036ff648 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888118ed2880
RDX: 0000000000000000 RSI: ffff888125adb070 RDI: 0000000000000000
RBP: ffffc900036ff688 R08: 0000000000000005 R09: ffffffff8410be05
R10: 0000000000000004 R11: ffff888118ed2880 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff8881f70364a0 R15: ffff888125adb070
FS:  00007f1c60abd6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200009c0 CR3: 0000000125b1d000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	56                   	push   %rsi
   1:	41 55                	push   %r13
   3:	41 54                	push   %r12
   5:	53                   	push   %rbx
   6:	48 83 ec 18          	sub    $0x18,%rsp
   a:	48 89 55 c0          	mov    %rdx,-0x40(%rbp)
   e:	49 89 f7             	mov    %rsi,%r15
  11:	48 89 fb             	mov    %rdi,%rbx
  14:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  1b:	fc ff df
  1e:	e8 f6 22 de ff       	call   0xffde2319
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 80 f6 24 00       	call   0x24f6b9
  39:	4c 8b 33             	mov    (%rbx),%r14
  3c:	48 83 c3 20          	add    $0x20,%rbx

Crashes (226):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/03/27 05:14 android14-6.1 eef3b6e52937 454571b6 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/03/27 03:17 android14-6.1 eef3b6e52937 454571b6 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/03/26 23:51 android14-6.1 eef3b6e52937 454571b6 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/03/27 05:13 android14-6.1 eef3b6e52937 454571b6 .config strace log report syz [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/22 05:37 android14-6.1 0a5aada71cc9 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/22 03:55 android14-6.1 0a5aada71cc9 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/21 22:20 android14-6.1 0a5aada71cc9 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/21 20:04 android14-6.1 34a15d350726 4c0d3ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/21 09:54 android14-6.1 34a15d350726 4c0d3ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/21 07:57 android14-6.1 34a15d350726 4c0d3ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/20 16:59 android14-6.1 34a15d350726 c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/19 22:43 android14-6.1 bd552fcbbd0f c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/19 11:15 android14-6.1 bd552fcbbd0f c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/19 09:39 android14-6.1 bd552fcbbd0f c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/19 05:23 android14-6.1 4ed706c20a76 c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/18 22:50 android14-6.1 4ed706c20a76 c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/18 20:50 android14-6.1 4ed706c20a76 c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/17 17:54 android14-6.1 a9dca663a7f2 a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/17 14:35 android14-6.1 a9dca663a7f2 a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/17 13:12 android14-6.1 a9dca663a7f2 a12e99e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/17 08:58 android14-6.1 a9dca663a7f2 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/15 10:34 android14-6.1 274e3e96961d 94b087b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/14 02:12 android14-6.1 4d55129aea65 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/12 21:28 android14-6.1 4d55129aea65 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/11 03:43 android14-6.1 4d55129aea65 f7c35481 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/09 02:12 android14-6.1 fae94bc4e7ae 20bf80e1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/08 02:08 android14-6.1 d5e04556d434 4cf3f9b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/08 01:05 android14-6.1 d5e04556d434 4cf3f9b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/07 19:26 android14-6.1 d5e04556d434 cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/07 17:28 android14-6.1 d5e04556d434 cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/07 15:57 android14-6.1 d5e04556d434 cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/07 13:22 android14-6.1 1794308d463f cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/07 12:00 android14-6.1 1794308d463f cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/07 09:33 android14-6.1 1794308d463f fa7a5cf0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/05 23:41 android14-6.1 1794308d463f 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/05 12:16 android14-6.1 1794308d463f 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/03 20:11 android14-6.1 1794308d463f dd26401e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/03 10:27 android14-6.1 1794308d463f dd26401e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/01 23:39 android14-6.1 6657c436ed73 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 general protection fault in dev_map_enqueue
2024/05/01 03:49 android14-6.1 1d37bc9913cc 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/04/29 06:35 android14-6.1 08cc4037cf32 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/04/27 22:08 android14-6.1 fa87a072a7fc 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/04/26 22:02 android14-6.1 fa87a072a7fc 059e9963 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/04/25 09:15 android14-6.1 c61278bb705a 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/04/24 13:35 android14-6.1 d0c6724b0f6f 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/03/26 22:58 android14-6.1 eef3b6e52937 454571b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf general protection fault in dev_map_enqueue
2024/05/20 14:31 android14-6.1 34a15d350726 c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Read in dev_map_enqueue
2024/05/20 13:03 android14-6.1 bd552fcbbd0f c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf KASAN: use-after-free Read in dev_map_enqueue
2024/05/18 01:16 android14-6.1 51c421385e7a c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf KASAN: use-after-free Read in dev_map_enqueue
2024/05/18 01:16 android14-6.1 51c421385e7a c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf KASAN: use-after-free Read in dev_map_enqueue
2024/05/14 10:55 android14-6.1 47dfe41d57ca fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf KASAN: use-after-free Read in dev_map_enqueue
2024/05/07 17:37 android14-6.1 d5e04556d434 cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Read in dev_map_enqueue
2024/05/03 00:51 android14-6.1 1794308d463f ddfc15a1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Read in dev_map_enqueue
2024/05/01 16:51 android14-6.1 1d37bc9913cc 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1-perf KASAN: use-after-free Read in dev_map_enqueue
2024/04/12 15:17 android14-6.1 354782156070 c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: slab-out-of-bounds Read in dev_map_enqueue
* Struck through repros no longer work on HEAD.