* BUG: unable to handle kernel paging request in bpf_prog_kallsyms_find
@ 2018-11-18 18:49 syzbot
2019-03-26 5:44 ` syzbot
0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2018-11-18 18:49 UTC (permalink / raw)
To: ast, daniel, linux-kernel, netdev, syzkaller-bugs
Hello,
syzbot found the following crash on:
HEAD commit: 592ee43faf86 bpf: fix null pointer dereference on pointer ..
git tree: bpf-next
console output: https://syzkaller.appspot.com/x/log.txt?x=1211f2d5400000
kernel config: https://syzkaller.appspot.com/x/.config?x=7e5cbc38ae27657e
dashboard link: https://syzkaller.appspot.com/bug?extid=66d6b1d3055f1d9ee4f3
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10e4ec25400000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+66d6b1d3055f1d9ee4f3@syzkaller.appspotmail.com
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1126bc8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1126d40 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#2] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b11264d8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1126650 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#3] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1125de8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1125f60 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#4] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b11256f8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1125870 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#5] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1125008 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1125180 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#6] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1124918 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1124a90 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#7] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1124228 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b11243a0 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#8] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1123b38 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1123cb0 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#9] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1123448 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b11235c0 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#10] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1122d58 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1122ed0 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#11] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1122668 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b11227e0 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#12] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1121f78 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b11220f0 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#13] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1121888 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1121a00 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Oops: 0000 [#14] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1121198 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1121310 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#15] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1120aa8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1120c20 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
------------[ cut here ]------------
kernel BUG at mm/slab.c:4425!
invalid opcode: 0000 [#16] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__check_heap_object+0xa7/0xb5 mm/slab.c:4450
Code: 48 c7 c7 d5 b7 14 89 e8 97 e3 0a 00 5d c3 41 8b 91 04 01 00 00 48 29
c7 48 39 d7 77 be 48 01 d0 48 29 c8 48 39 f0 72 b3 5d c3 <0f> 0b 48 c7 c7
d5 b7 14 89 e8 fd eb 0a 00 44 89 e9 48 c7 c7 90 b8
RSP: 0018:ffff8801b111fd38 EFLAGS: 00010046
RAX: 0000000000000001 RBX: 1ffff10036223fae RCX: 000000000000000c
RDX: ffff8801b111ed80 RSI: 0000000000000001 RDI: ffff8801b111ff18
RBP: ffff8801b111fd38 R08: ffff8801c2ac4040 R09: ffff8801da980e00
R10: 0000000000000f86 R11: 0000000000000000 R12: ffff8801b111ff18
R13: 0000000000000001 R14: ffffea0006c44780 R15: 0000000000000001
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
BUG: unable to handle kernel paging request at ffffc90001933030
PGD 1da95a067 P4D 1da95a067 PUD 1da95b067 PMD 1d4203067 PTE 0
Thread overran stack, or stack corrupted
Oops: 0000 [#17] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b111f880 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b111f9f8 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
------------[ cut here ]------------
kernel BUG at mm/slab.c:4425!
invalid opcode: 0000 [#18] PREEMPT SMP KASAN
CPU: 0 PID: 13017 Comm: blkid Not tainted 4.20.0-rc1+ #144
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__check_heap_object+0xa7/0xb5 mm/slab.c:4450
Code: 48 c7 c7 d5 b7 14 89 e8 97 e3 0a 00 5d c3 41 8b 91 04 01 00 00 48 29
c7 48 39 d7 77 be 48 01 d0 48 29 c8 48 39 f0 72 b3 5d c3 <0f> 0b 48 c7 c7
d5 b7 14 89 e8 fd eb 0a 00 44 89 e9 48 c7 c7 90 b8
RSP: 0018:ffff8801b111d300 EFLAGS: 00010046
RAX: 0000000000000001 RBX: 1ffff10036223a67 RCX: 000000000000000c
RDX: ffff8801b111c200 RSI: 0000000000000002 RDI: ffff8801b111d4a8
RBP: ffff8801b111d300 R08: ffff8801c2ac4040 R09: ffff8801da980e00
R10: 0000000000001076 R11: 0000000000000000 R12: ffff8801b111d4a8
R13: 0000000000000002 R14: ffffea0006c44700 R15: 0000000000000001
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
---[ end trace 53dd6c86d14a98c0 ]---
RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:885 [inline]
RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:384 [inline]
RIP: 0010:bpf_tree_comp kernel/bpf/core.c:438 [inline]
RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline]
RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline]
RIP: 0010:bpf_prog_kallsyms_find+0x289/0x4a0 kernel/bpf/core.c:512
Code: 03 42 80 3c 30 00 0f 85 b1 01 00 00 4d 8b 6f 50 49 8d 7d 30 48 89 fa
48 c1 ea 03 42 80 3c 32 00 0f 85 ab 01 00 00 49 8d 7d 02 <4d> 8b 65 30 48
89 fa 48 89 f9 48 c1 ea 03 83 e1 07 42 0f b6 14 32
RSP: 0018:ffff8801b1126bc8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8801d54e0a30 RCX: ffffffff818c0a21
RDX: 1ffff92000326606 RSI: 0000000000000008 RDI: ffffc90001933002
RBP: ffff8801b1126d40 R08: ffff8801c2ac4040 R09: 0000000000000000
R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000
R13: ffffc90001933000 R14: dffffc0000000000 R15: ffff8801d54e0a30
FS: 00007fe237cd5740(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc90001933030 CR3: 00000001b96da000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
syzbot.
syzbot can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: BUG: unable to handle kernel paging request in bpf_prog_kallsyms_find
2018-11-18 18:49 BUG: unable to handle kernel paging request in bpf_prog_kallsyms_find syzbot
@ 2019-03-26 5:44 ` syzbot
0 siblings, 0 replies; 2+ messages in thread
From: syzbot @ 2019-03-26 5:44 UTC (permalink / raw)
To: ast, ast, daniel, john.fastabend, linux-kernel, netdev, syzkaller-bugs
syzbot has bisected this bug to:
commit f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Author: Alexei Starovoitov <ast@fb.com>
Date: Fri Dec 15 01:55:06 2017 +0000
bpf: introduce function calls (verification)
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17b5a0cd200000
start commit: 592ee43f bpf: fix null pointer dereference on pointer offl..
git tree: bpf-next
final crash: https://syzkaller.appspot.com/x/report.txt?x=1475a0cd200000
console output: https://syzkaller.appspot.com/x/log.txt?x=1075a0cd200000
kernel config: https://syzkaller.appspot.com/x/.config?x=7e5cbc38ae27657e
dashboard link: https://syzkaller.appspot.com/bug?extid=66d6b1d3055f1d9ee4f3
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10e4ec25400000
Reported-by: syzbot+66d6b1d3055f1d9ee4f3@syzkaller.appspotmail.com
Fixes: f4d7e40a5b71 ("bpf: introduce function calls (verification)")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2019-03-26 5:44 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
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2018-11-18 18:49 BUG: unable to handle kernel paging request in bpf_prog_kallsyms_find syzbot
2019-03-26 5:44 ` syzbot
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