general protection fault in __btf_resolve_helper

Title	Replies (including bot)	Last reply
[PATCH 5.7 00/79] 5.7.15-rc1 review	83 (83)	2020/08/11 14:23
[Linux-kernel-mentees] [PATCH] bpf: Fix NULL pointer dereference in __btf_resolve_helper_id()	7 (7)	2020/07/15 21:07
general protection fault in __btf_resolve_helper_id	0 (1)	2020/07/05 18:41

general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f] CPU: 0 PID: 6799 Comm: syz-executor682 Not tainted 5.8.0-rc3-next-20200703-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__btf_resolve_helper_id+0x149/0xb10 kernel/bpf/btf.c:4102 Code: 80 3c 03 00 0f 85 dd 08 00 00 48 8b 05 70 46 0a 0b 48 8d 78 48 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 50 09 00 00 48 8b 04 24 31 ff RSP: 0018:ffffc90001637378 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 1ffffffff1926068 RCX: ffffffff816aa4b6 RDX: 0000000000000009 RSI: ffffffff8188bcb1 RDI: 0000000000000048 RBP: ffffffff818ba3d0 R08: ffffc900016373e4 R09: ffffc90001637670 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888096648260 R15: ffff888096648000 FS: 0000000000cc2880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000282 CR3: 00000000a6dbe000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btf_resolve_helper_id+0x10c/0x1c0 kernel/bpf/btf.c:4164 check_helper_call+0x1641/0x5650 kernel/bpf/verifier.c:4721 do_check kernel/bpf/verifier.c:8938 [inline] do_check_common+0x7253/0xc2d0 kernel/bpf/verifier.c:10574 do_check_main kernel/bpf/verifier.c:10640 [inline] bpf_check+0x857f/0xce51 kernel/bpf/verifier.c:11093 bpf_prog_load+0xdaf/0x1b50 kernel/bpf/syscall.c:2194 __do_sys_bpf+0x1edf/0x4b10 kernel/bpf/syscall.c:4112 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:367 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x440379 Code: Bad RIP value. RSP: 002b:00007ffee37aa6d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440379 RDX: 0000000000000048 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000401c00 R13: 0000000000401c90 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace d5a7c4fec6f343c9 ]--- RIP: 0010:__btf_resolve_helper_id+0x149/0xb10 kernel/bpf/btf.c:4102 Code: 80 3c 03 00 0f 85 dd 08 00 00 48 8b 05 70 46 0a 0b 48 8d 78 48 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 50 09 00 00 48 8b 04 24 31 ff RSP: 0018:ffffc90001637378 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 1ffffffff1926068 RCX: ffffffff816aa4b6 RDX: 0000000000000009 RSI: ffffffff8188bcb1 RDI: 0000000000000048 RBP: ffffffff818ba3d0 R08: ffffc900016373e4 R09: ffffc90001637670 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888096648260 R15: ffff888096648000 FS: 0000000000cc2880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000282 CR3: 00000000a6dbe000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (17):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Manager
2020/07/05 08:35	linux-next	9e50b94b3eb0	51095195	.config	console log	report	syz	C	ci-upstream-linux-next-kasan-gce-root
2020/07/14 07:26	net-next-old	2be53e0e4690	ce4c95b3	.config	console log	report			ci-upstream-net-kasan-gce
2020/07/13 13:27	net-next-old	94339443686b	f90ec899	.config	console log	report			ci-upstream-net-kasan-gce
2020/07/13 05:51	bpf-next	eef8a42d6ce0	9ebcc5b1	.config	console log	report			ci-upstream-bpf-next-kasan-gce
2020/07/13 02:26	bpf-next	eef8a42d6ce0	9ebcc5b1	.config	console log	report			ci-upstream-bpf-next-kasan-gce
2020/07/11 15:12	bpf-next	eef8a42d6ce0	18d18b59	.config	console log	report			ci-upstream-bpf-next-kasan-gce
2020/07/11 15:11	net-next-old	a594920f8747	18d18b59	.config	console log	report			ci-upstream-net-kasan-gce
2020/07/10 13:04	bpf-next	2977282b63c3	edf162e8	.config	console log	report			ci-upstream-bpf-next-kasan-gce
2020/07/10 12:14	bpf-next	2977282b63c3	edf162e8	.config	console log	report			ci-upstream-bpf-next-kasan-gce
2020/07/10 10:55	bpf-next	2977282b63c3	edf162e8	.config	console log	report			ci-upstream-bpf-next-kasan-gce
2020/07/08 23:50	net-next-old	e80a07b244dd	bc238812	.config	console log	report			ci-upstream-net-kasan-gce
2020/07/08 23:05	bpf-next	5cfd607b49db	bc238812	.config	console log	report			ci-upstream-bpf-next-kasan-gce
2020/07/14 07:34	linux-next	be978f8feb1d	ce4c95b3	.config	console log	report			ci-upstream-linux-next-kasan-gce-root
2020/07/14 07:34	linux-next	be978f8feb1d	ce4c95b3	.config	console log	report			ci-upstream-linux-next-kasan-gce-root
2020/07/11 15:19	linux-next	d31958b30ea3	18d18b59	.config	console log	report			ci-upstream-linux-next-kasan-gce-root
2020/07/07 07:54	linux-next	9e50b94b3eb0	51095195	.config	console log	report			ci-upstream-linux-next-kasan-gce-root
2020/07/05 08:20	linux-next	9e50b94b3eb0	51095195	.config	console log	report			ci-upstream-linux-next-kasan-gce-root

Crashes (17):

Assets (help?)

2020/07/05 08:35

linux-next