general protection fault in selinux_socket

duplicates (1):
Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
general protection fault in sock_recvmsg mptcp	2	C	done		1	1882d	1882d	0/29	closed as dup on 2020/05/25 11:14

Title	Replies (including bot)	Last reply
[PATCH net] mptcp: avoid NULL-ptr derefence on fallback	3 (3)	2020/05/27 03:18
general protection fault in selinux_socket_recvmsg	1 (3)	2020/05/24 18:12

Title

Replies (including bot)

Last reply

[PATCH net] mptcp: avoid NULL-ptr derefence on fallback

3 (3)

2020/05/27 03:18

general protection fault in selinux_socket_recvmsg

1 (3)

2020/05/24 18:12

Created	Duration	User	Patch	Repo	Result
2020/05/25 08:58	16m	pabeni@redhat.com	patch	net-old	OK

Created

Duration

User

Patch

Repo

Result

2020/05/25 08:58

16m

pabeni@redhat.com

patch

net-old

general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] CPU: 0 PID: 7370 Comm: syz-executor283 Not tainted 5.7.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:selinux_socket_recvmsg+0x1e/0x40 security/selinux/hooks.c:4841 Code: e8 77 f9 1e fe 48 89 ef 5d eb b1 90 53 48 89 fb e8 67 f9 1e fe 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 0f 48 8b 7b 18 be 02 00 00 00 5b e9 7d fc ff ff e8 RSP: 0018:ffffc900019d7a58 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000040000000 RDX: 0000000000000003 RSI: ffffffff83543bb9 RDI: 0000000000000018 RBP: dffffc0000000000 R08: ffff88809f45a180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffc900019d7d78 R14: 0000000000001000 R15: 0000000040000000 FS: 00007f5ffb311700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5ffb2efe78 CR3: 00000000a33c1000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: security_socket_recvmsg+0x78/0xc0 security/security.c:2070 sock_recvmsg+0x47/0x110 net/socket.c:902 mptcp_recvmsg+0xb3b/0xd90 net/mptcp/protocol.c:891 inet_recvmsg+0x121/0x5d0 net/ipv4/af_inet.c:838 sock_recvmsg_nosec net/socket.c:886 [inline] sock_recvmsg net/socket.c:904 [inline] sock_recvmsg+0xca/0x110 net/socket.c:900 __sys_recvfrom+0x1c5/0x2f0 net/socket.c:2057 __do_sys_recvfrom net/socket.c:2075 [inline] __se_sys_recvfrom net/socket.c:2071 [inline] __x64_sys_recvfrom+0xdd/0x1b0 net/socket.c:2071 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x448ef9 Code: e8 cc 14 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 9b 0c fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5ffb310da8 EFLAGS: 00000246 ORIG_RAX: 000000000000002d RAX: ffffffffffffffda RBX: 00000000006dec28 RCX: 0000000000448ef9 RDX: 0000000000001000 RSI: 00000000200004c0 RDI: 0000000000000003 RBP: 00000000006dec20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000040000000 R11: 0000000000000246 R12: 00000000006dec2c R13: 00007ffc3a001ccf R14: 00007f5ffb3119c0 R15: 00000000006dec2c Modules linked in: ---[ end trace 60e1f3eb5a5b83ce ]--- RIP: 0010:selinux_socket_recvmsg+0x1e/0x40 security/selinux/hooks.c:4841 Code: e8 77 f9 1e fe 48 89 ef 5d eb b1 90 53 48 89 fb e8 67 f9 1e fe 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 0f 48 8b 7b 18 be 02 00 00 00 5b e9 7d fc ff ff e8 RSP: 0018:ffffc900019d7a58 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000040000000 RDX: 0000000000000003 RSI: ffffffff83543bb9 RDI: 0000000000000018 RBP: dffffc0000000000 R08: ffff88809f45a180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffc900019d7d78 R14: 0000000000001000 R15: 0000000040000000 FS: 00007f5ffb311700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5ffb2efe78 CR3: 00000000a33c1000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (4):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Manager
2020/05/23 07:13	upstream	051143e1602d	9682898d	.config	console log	report	syz	C	ci-upstream-kasan-gce-selinux-root
2020/05/23 06:46	upstream	051143e1602d	9682898d	.config	console log	report			ci-upstream-kasan-gce-selinux-root
2020/05/22 15:08	upstream	d2f8825ab78e	5afa2ddd	.config	console log	report			ci-upstream-kasan-gce-selinux-root
2020/05/22 15:04	upstream	051143e1602d	9682898d	.config	console log	report			ci-qemu-upstream

Crashes (4):

Assets (help?)