INFO: trying to register non-static key in ieee802154_del_llsec_key (2)
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syzbot
Apr 21, 2022, 9:06:29 PM4/21/22
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 15a1c6b6f516 Linux 4.14.276
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=163aede8f00000
kernel config: https://syzkaller.appspot.com/x/.config?x=3ec12c117082c76f
dashboard link: https://syzkaller.appspot.com/bug?extid=2105c6c6cd5083d1c37d
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2105c6...@syzkaller.appspotmail.com
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 20848 Comm: syz-executor.1 Not tainted 4.14.276-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
register_lock_class+0x389/0x1180 kernel/locking/lockdep.c:768
__lock_acquire+0x167/0x3f20 kernel/locking/lockdep.c:3378
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
__mutex_lock_common kernel/locking/mutex.c:756 [inline]
__mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893
ieee802154_del_llsec_key+0x3f/0x70 net/mac802154/cfg.c:358
rdev_del_llsec_key net/ieee802154/rdev-ops.h:268 [inline]
nl802154_del_llsec_key+0x226/0x2e0 net/ieee802154/nl802154.c:1639
genl_family_rcv_msg+0x572/0xb20 net/netlink/genetlink.c:600
genl_rcv_msg+0xaf/0x140 net/netlink/genetlink.c:625
netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2448
genl_rcv+0x24/0x40 net/netlink/genetlink.c:636
netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline]
netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322
netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
__sys_sendmsg+0xa3/0x120 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x27/0x40 net/socket.c:2103
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fdfbe9370e9
RSP: 002b:00007fdfbd2ac168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fdfbea49f60 RCX: 00007fdfbe9370e9
RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000013
RBP: 00007fdfbe99108d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff528df9af R14: 00007fdfbd2ac300 R15: 0000000000022000
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 20848 Comm: syz-executor.1 Not tainted 4.14.276-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88809f8b41c0 task.stack: ffff8880989f0000
RIP: 0010:llsec_key_id_equal+0x22/0x390 net/mac802154/llsec.c:199
RSP: 0018:ffff8880989f7620 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffc90008617000
RDX: 0000000000000002 RSI: ffffffff86df89c1 RDI: 0000000000000010
RBP: ffff8880989f76d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: ffff88809f8b41c0 R12: ffff88809b3d8ea0
R13: dffffc0000000000 R14: ffff88809b3d8d50 R15: ffff8880989f76d0
FS: 00007fdfbd2ac700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000040 CR3: 00000000a340d000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mac802154_llsec_key_del+0x7f/0x200 net/mac802154/llsec.c:286
ieee802154_del_llsec_key+0x4e/0x70 net/mac802154/cfg.c:359
rdev_del_llsec_key net/ieee802154/rdev-ops.h:268 [inline]
nl802154_del_llsec_key+0x226/0x2e0 net/ieee802154/nl802154.c:1639
genl_family_rcv_msg+0x572/0xb20 net/netlink/genetlink.c:600
genl_rcv_msg+0xaf/0x140 net/netlink/genetlink.c:625
netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2448
genl_rcv+0x24/0x40 net/netlink/genetlink.c:636
netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline]
netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322
netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
__sys_sendmsg+0xa3/0x120 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x27/0x40 net/socket.c:2103
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fdfbe9370e9
RSP: 002b:00007fdfbd2ac168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fdfbea49f60 RCX: 00007fdfbe9370e9
RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000013
RBP: 00007fdfbe99108d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff528df9af R14: 00007fdfbd2ac300 R15: 0000000000022000
Code: 89 e0 41 5c c3 0f 1f 40 00 41 55 41 54 55 48 89 f5 53 48 89 fb e8 df bc 75 fa 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 31 02 00 00 48 89 ea 44 0f b6 23
RIP: llsec_key_id_equal+0x22/0x390 net/mac802154/llsec.c:199 RSP: ffff8880989f7620
---[ end trace 5f6808a08d0c130e ]---
----------------
Code disassembly (best guess):
0: 89 e0 mov %esp,%eax
2: 41 5c pop %r12
4: c3 retq
5: 0f 1f 40 00 nopl 0x0(%rax)
9: 41 55 push %r13
b: 41 54 push %r12
d: 55 push %rbp
e: 48 89 f5 mov %rsi,%rbp
11: 53 push %rbx
12: 48 89 fb mov %rdi,%rbx
15: e8 df bc 75 fa callq 0xfa75bcf9
1a: 48 89 da mov %rbx,%rdx
1d: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
24: fc ff df
27: 48 c1 ea 03 shr $0x3,%rdx
* 2b: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 74 06 je 0x39
33: 0f 8e 31 02 00 00 jle 0x26a
39: 48 89 ea mov %rbp,%rdx
3c: 44 0f b6 23 movzbl (%rbx),%r12d
---
This report 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 syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: 15a1c6b6f516 Linux 4.14.276
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=163aede8f00000
kernel config: https://syzkaller.appspot.com/x/.config?x=3ec12c117082c76f
dashboard link: https://syzkaller.appspot.com/bug?extid=2105c6c6cd5083d1c37d
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2105c6...@syzkaller.appspotmail.com
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 20848 Comm: syz-executor.1 Not tainted 4.14.276-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
register_lock_class+0x389/0x1180 kernel/locking/lockdep.c:768
__lock_acquire+0x167/0x3f20 kernel/locking/lockdep.c:3378
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
__mutex_lock_common kernel/locking/mutex.c:756 [inline]
__mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893
ieee802154_del_llsec_key+0x3f/0x70 net/mac802154/cfg.c:358
rdev_del_llsec_key net/ieee802154/rdev-ops.h:268 [inline]
nl802154_del_llsec_key+0x226/0x2e0 net/ieee802154/nl802154.c:1639
genl_family_rcv_msg+0x572/0xb20 net/netlink/genetlink.c:600
genl_rcv_msg+0xaf/0x140 net/netlink/genetlink.c:625
netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2448
genl_rcv+0x24/0x40 net/netlink/genetlink.c:636
netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline]
netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322
netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
__sys_sendmsg+0xa3/0x120 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x27/0x40 net/socket.c:2103
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fdfbe9370e9
RSP: 002b:00007fdfbd2ac168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fdfbea49f60 RCX: 00007fdfbe9370e9
RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000013
RBP: 00007fdfbe99108d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff528df9af R14: 00007fdfbd2ac300 R15: 0000000000022000
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 20848 Comm: syz-executor.1 Not tainted 4.14.276-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88809f8b41c0 task.stack: ffff8880989f0000
RIP: 0010:llsec_key_id_equal+0x22/0x390 net/mac802154/llsec.c:199
RSP: 0018:ffff8880989f7620 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffc90008617000
RDX: 0000000000000002 RSI: ffffffff86df89c1 RDI: 0000000000000010
RBP: ffff8880989f76d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: ffff88809f8b41c0 R12: ffff88809b3d8ea0
R13: dffffc0000000000 R14: ffff88809b3d8d50 R15: ffff8880989f76d0
FS: 00007fdfbd2ac700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000040 CR3: 00000000a340d000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mac802154_llsec_key_del+0x7f/0x200 net/mac802154/llsec.c:286
ieee802154_del_llsec_key+0x4e/0x70 net/mac802154/cfg.c:359
rdev_del_llsec_key net/ieee802154/rdev-ops.h:268 [inline]
nl802154_del_llsec_key+0x226/0x2e0 net/ieee802154/nl802154.c:1639
genl_family_rcv_msg+0x572/0xb20 net/netlink/genetlink.c:600
genl_rcv_msg+0xaf/0x140 net/netlink/genetlink.c:625
netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2448
genl_rcv+0x24/0x40 net/netlink/genetlink.c:636
netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline]
netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322
netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
__sys_sendmsg+0xa3/0x120 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x27/0x40 net/socket.c:2103
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fdfbe9370e9
RSP: 002b:00007fdfbd2ac168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fdfbea49f60 RCX: 00007fdfbe9370e9
RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000013
RBP: 00007fdfbe99108d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff528df9af R14: 00007fdfbd2ac300 R15: 0000000000022000
Code: 89 e0 41 5c c3 0f 1f 40 00 41 55 41 54 55 48 89 f5 53 48 89 fb e8 df bc 75 fa 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 31 02 00 00 48 89 ea 44 0f b6 23
RIP: llsec_key_id_equal+0x22/0x390 net/mac802154/llsec.c:199 RSP: ffff8880989f7620
---[ end trace 5f6808a08d0c130e ]---
----------------
Code disassembly (best guess):
0: 89 e0 mov %esp,%eax
2: 41 5c pop %r12
4: c3 retq
5: 0f 1f 40 00 nopl 0x0(%rax)
9: 41 55 push %r13
b: 41 54 push %r12
d: 55 push %rbp
e: 48 89 f5 mov %rsi,%rbp
11: 53 push %rbx
12: 48 89 fb mov %rdi,%rbx
15: e8 df bc 75 fa callq 0xfa75bcf9
1a: 48 89 da mov %rbx,%rdx
1d: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
24: fc ff df
27: 48 c1 ea 03 shr $0x3,%rdx
* 2b: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 74 06 je 0x39
33: 0f 8e 31 02 00 00 jle 0x26a
39: 48 89 ea mov %rbp,%rdx
3c: 44 0f b6 23 movzbl (%rbx),%r12d
---
This report 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 syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
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