syzbot


general protection fault in dev_map_enqueue (2)

Status: upstream: reported C repro on 2024/05/27 00:44
Subsystems: bpf net
[Documentation on labels]
Reported-by: syzbot+cca39e6e84a367a7e6f6@syzkaller.appspotmail.com
First crash: 22d, last: 13h42m
Cause bisection: failed (error log, bisect log)
  
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly bpf report (Jun 2024) 0 (1) 2024/06/12 22:41
[syzbot] [bpf?] [net?] general protection fault in dev_map_enqueue (2) 0 (2) 2024/06/09 11:34
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-6-1 general protection fault in dev_map_enqueue origin:upstream missing-backport C 313 4h07m 79d 0/2 upstream: reported C repro on 2024/03/26 23:53
upstream general protection fault in dev_map_enqueue bpf net C 676 22d 79d 26/27 fixed on 2024/05/22 23:26
linux-6.1 general protection fault in dev_map_enqueue origin:upstream missing-backport C 71 2d03h 79d 0/3 upstream: reported C repro on 2024/03/26 19:03

Sample crash report:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 5098 Comm: syz-executor784 Not tainted 6.10.0-rc2-syzkaller-00228-gc44711b78608 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:dev_map_enqueue+0x31/0x3e0 kernel/bpf/devmap.c:539
Code: 41 56 41 55 41 54 53 48 83 ec 18 49 89 d4 49 89 f5 48 89 fd 49 be 00 00 00 00 00 fc ff df e8 46 9c d7 ff 48 89 e8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 ef e8 a0 5e 3d 00 4c 8b 7d 00 48 83 c5
RSP: 0018:ffffc9000343f678 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807eb31e00
RDX: 0000000000000000 RSI: ffff88802224a070 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff89625806 R09: ffffffff896257c3
R10: 0000000000000004 R11: ffff88807eb31e00 R12: ffff8880151d8000
R13: ffff88802224a070 R14: dffffc0000000000 R15: 0000000000000000
FS:  00005555867d5380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdc79c59303 CR3: 0000000022bc8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __xdp_do_redirect_frame net/core/filter.c:4397 [inline]
 xdp_do_redirect_frame+0x2a6/0x660 net/core/filter.c:4451
 xdp_test_run_batch net/bpf/test_run.c:336 [inline]
 bpf_test_run_xdp_live+0xe60/0x1e60 net/bpf/test_run.c:384
 bpf_prog_test_run_xdp+0x80e/0x11b0 net/bpf/test_run.c:1281
 bpf_prog_test_run+0x33a/0x3b0 kernel/bpf/syscall.c:4292
 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5706
 __do_sys_bpf kernel/bpf/syscall.c:5795 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5793 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5793
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdc79c5b239
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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:00007fff5780f908 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdc79c5b239
RDX: 0000000000000050 RSI: 0000000020000240 RDI: 000000000000000a
RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dev_map_enqueue+0x31/0x3e0 kernel/bpf/devmap.c:539
Code: 41 56 41 55 41 54 53 48 83 ec 18 49 89 d4 49 89 f5 48 89 fd 49 be 00 00 00 00 00 fc ff df e8 46 9c d7 ff 48 89 e8 48 c1 e8 03 <42> 80 3c 30 00 74 08 48 89 ef e8 a0 5e 3d 00 4c 8b 7d 00 48 83 c5
RSP: 0018:ffffc9000343f678 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807eb31e00
RDX: 0000000000000000 RSI: ffff88802224a070 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff89625806 R09: ffffffff896257c3
R10: 0000000000000004 R11: ffff88807eb31e00 R12: ffff8880151d8000
R13: ffff88802224a070 R14: dffffc0000000000 R15: 0000000000000000
FS:  00005555867d5380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdc79c59303 CR3: 0000000022bc8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	41 56                	push   %r14
   2:	41 55                	push   %r13
   4:	41 54                	push   %r12
   6:	53                   	push   %rbx
   7:	48 83 ec 18          	sub    $0x18,%rsp
   b:	49 89 d4             	mov    %rdx,%r12
   e:	49 89 f5             	mov    %rsi,%r13
  11:	48 89 fd             	mov    %rdi,%rbp
  14:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  1b:	fc ff df
  1e:	e8 46 9c d7 ff       	call   0xffd79c69
  23:	48 89 e8             	mov    %rbp,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 ef             	mov    %rbp,%rdi
  34:	e8 a0 5e 3d 00       	call   0x3d5ed9
  39:	4c 8b 7d 00          	mov    0x0(%rbp),%r15
  3d:	48                   	rex.W
  3e:	83                   	.byte 0x83
  3f:	c5                   	.byte 0xc5

Crashes (168):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/09 11:34 net c44711b78608 82c05ab8 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in dev_map_enqueue
2024/06/13 00:48 upstream cea2a26553ac 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in dev_map_enqueue
2024/06/11 14:01 upstream 83a7eefedc9b c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root general protection fault in dev_map_enqueue
2024/06/09 21:56 upstream b8481381d4e2 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in dev_map_enqueue
2024/06/08 15:24 upstream dc772f8237f9 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in dev_map_enqueue
2024/06/07 19:55 upstream 8a92980606e3 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in dev_map_enqueue
2024/05/24 20:52 upstream 8f6a15f095a6 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dev_map_enqueue
2024/05/23 21:54 upstream 8f6a15f095a6 8f98448e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root general protection fault in dev_map_enqueue
2024/06/08 11:23 upstream dc772f8237f9 c2e07261 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in dev_map_enqueue
2024/06/13 23:54 bpf 36534d3c5453 a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce general protection fault in dev_map_enqueue
2024/06/12 20:28 bpf 36534d3c5453 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce general protection fault in dev_map_enqueue
2024/06/11 15:58 net 36534d3c5453 c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in dev_map_enqueue
2024/06/11 10:10 net 36534d3c5453 c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in dev_map_enqueue
2024/06/11 03:33 bpf 93792130a938 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce general protection fault in dev_map_enqueue
2024/06/07 06:11 net d30d0e49da71 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in dev_map_enqueue
2024/06/05 18:35 net 5b4b62a169e1 e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in dev_map_enqueue
2024/06/05 15:14 bpf 03e38d315f3c e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce general protection fault in dev_map_enqueue
2024/06/03 16:31 bpf 2317dc2c22cc 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce general protection fault in dev_map_enqueue
2024/05/23 00:37 bpf 4b377b4868ef 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce general protection fault in dev_map_enqueue
2024/06/13 19:39 net-next 3ec8d7572a69 a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/13 18:01 bpf-next 041c1dc988fd a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/13 13:32 net-next 3ec8d7572a69 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/13 11:28 bpf-next 4ff5747158f3 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/13 07:51 net-next 91579c93a9b2 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/13 06:38 net-next 91579c93a9b2 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/12 22:43 net-next 91579c93a9b2 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/12 12:48 net-next 45403b12c29c 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/12 11:38 net-next 45403b12c29c 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/12 08:00 net-next 45403b12c29c 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/12 04:07 bpf-next 98b303c9bf05 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/12 03:04 net-next bb678f01804c 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/12 01:53 bpf-next bb678f01804c c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/11 22:39 bpf-next bb678f01804c c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/11 17:23 bpf-next bb678f01804c c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/11 08:52 bpf-next 2ebb87f45b3c 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/10 20:57 bpf-next f85af9d955ac 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/10 11:57 bpf-next f85af9d955ac 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/10 07:22 bpf-next f85af9d955ac 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/10 04:35 net-next 924ee5317548 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/09 14:51 bpf-next f85af9d955ac 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/09 10:27 bpf-next f85af9d955ac 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/09 08:02 bpf-next f85af9d955ac 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/07 18:42 bpf-next f85af9d955ac 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/07 04:12 bpf-next f85af9d955ac 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/06 15:01 bpf-next 7015843afcaf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/06 08:04 bpf-next 072088704433 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/06 01:55 bpf-next 072088704433 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/05 18:22 net-next 69e0b33a7fce e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/05 13:31 net-next 69e0b33a7fce e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/04 23:48 bpf-next 61ce0ea7591f e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/04 01:11 net-next 93e30878f7ec 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/03 21:33 bpf-next 96a27ee76f0e 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/03 15:08 bpf-next 531876c80004 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce general protection fault in dev_map_enqueue
2024/06/03 13:55 net-next 93e30878f7ec 0aba2352 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce general protection fault in dev_map_enqueue
2024/06/10 15:20 linux-next d35b2284e966 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in dev_map_enqueue
2024/06/04 06:51 linux-next d97496ca23a2 a1feae05 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in dev_map_enqueue
2024/06/04 05:31 linux-next d97496ca23a2 a1feae05 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root general protection fault in dev_map_enqueue
2024/06/05 07:12 net a535d5943237 e1e2c66e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in dev_map_enqueue
* Struck through repros no longer work on HEAD.