[syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    557329bcecc2 Merge tag 'mmc-v6.12-rc3' of git://git.kernel..
git tree:       upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=14a9f740580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=921b01cbfd887a9b
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=15d76d5f980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12a9f740580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/2b44e0081eb5/disk-557329bc.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/15b6a52c8e11/vmlinux-557329bc.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ab40912bec45/bzImage-557329bc.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com

------------[ cut here ]------------
kernel BUG at lib/list_debug.c:58!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 6277 Comm: syz-executor157 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56
Code: e8 a1 7e 00 07 90 0f 0b 48 c7 c7 e0 37 60 8c 4c 89 fe e8 8f 7e 00 07 90 0f 0b 48 c7 c7 40 38 60 8c 4c 89 fe e8 7d 7e 00 07 90 <0f> 0b 48 c7 c7 a0 38 60 8c 4c 89 fe e8 6b 7e 00 07 90 0f 0b 48 c7
RSP: 0018:ffffc9000490f3d0 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: d211eee56bb28d00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff88805b278dd8 R08: ffffffff8174a12c R09: 1ffffffff2852f0d
R10: dffffc0000000000 R11: fffffbfff2852f0e R12: dffffc0000000000
R13: dffffc0000000000 R14: dead000000000100 R15: ffff88805b278cc0
FS:  0000555572f94380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056262e4a3000 CR3: 0000000078496000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del_rcu include/linux/rculist.h:157 [inline]
 ieee802154_if_remove+0x86/0x1e0 net/mac802154/iface.c:687
 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline]
 ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
 ___sys_sendmsg net/socket.c:2661 [inline]
 __sys_sendmsg+0x292/0x380 net/socket.c:2690
 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: 0033:0x7fd094c32309
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 19 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:00007ffec50063a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd094c32309
RDX: 0000000004000000 RSI: 0000000020000b00 RDI: 0000000000000004
RBP: 00000000000f4240 R08: 0000000000000000 R09: 00000000000000a0
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000161b7
R13: 00007ffec50063bc R14: 00007ffec50063d0 R15: 00007ffec50063c0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56
Code: e8 a1 7e 00 07 90 0f 0b 48 c7 c7 e0 37 60 8c 4c 89 fe e8 8f 7e 00 07 90 0f 0b 48 c7 c7 40 38 60 8c 4c 89 fe e8 7d 7e 00 07 90 <0f> 0b 48 c7 c7 a0 38 60 8c 4c 89 fe e8 6b 7e 00 07 90 0f 0b 48 c7
RSP: 0018:ffffc9000490f3d0 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: d211eee56bb28d00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff88805b278dd8 R08: ffffffff8174a12c R09: 1ffffffff2852f0d
R10: dffffc0000000000 R11: fffffbfff2852f0e R12: dffffc0000000000
R13: dffffc0000000000 R14: dead000000000100 R15: ffff88805b278cc0
FS:  0000555572f94380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056262e4a3000 CR3: 0000000078496000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

If you want to overwrite report's subsystems, reply with:
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(See the list of subsystem names on the web dashboard)

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If you want to undo deduplication, reply with:
#syz undup

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com

Tested on:

commit:         906bd684 Merge tag 'spi-fix-v6.12-rc6' of git://git.ke..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1306dd87980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=347f0ef7656eeb41
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1422c0c0580000

Note: testing is done by a robot and is best-effort only.

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com

Tested on:

commit:         906bd684 Merge tag 'spi-fix-v6.12-rc6' of git://git.ke..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1208cea7980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=347f0ef7656eeb41
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=11174ea7980000

Note: testing is done by a robot and is best-effort only.

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
BUG: corrupted list in ieee802154_if_remove

sd: ffff88807ee54cc0, sdl: dead000000000100, dev: dead000000000122,  
list_del corruption, ffff88807ee54cc0->next is LIST_POISON1 (dead000000000100)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:58!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 6812 Comm: syz.3.18 Not tainted 6.12.0-rc6-syzkaller-00169-g906bd684e4b1-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56
Code: e8 21 8f 00 07 90 0f 0b 48 c7 c7 20 39 60 8c 4c 89 fe e8 0f 8f 00 07 90 0f 0b 48 c7 c7 80 39 60 8c 4c 89 fe e8 fd 8e 00 07 90 <0f> 0b 48 c7 c7 e0 39 60 8c 4c 89 fe e8 eb 8e 00 07 90 0f 0b 48 c7
RSP: 0018:ffffc90002f1f3a8 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: 6cee37bacfc70200
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8174a12c R09: fffffbfff1cf9fd0
R10: dffffc0000000000 R11: fffffbfff1cf9fd0 R12: dffffc0000000000
R13: ffff88807ee54cc0 R14: dead000000000100 R15: ffff88807ee54cc0
FS:  00007fe011db66c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcd5e5db08 CR3: 00000000223b6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del_rcu include/linux/rculist.h:157 [inline]
 ieee802154_if_remove+0x175/0x2e0 net/mac802154/iface.c:691
 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline]
 ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
 ___sys_sendmsg net/socket.c:2661 [inline]
 __sys_sendmsg+0x292/0x380 net/socket.c:2690
 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: 0033:0x7fe010f7e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe011db6038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe011135f80 RCX: 00007fe010f7e719
RDX: 0000000004000000 RSI: 0000000020000b00 RDI: 0000000000000005
RBP: 00007fe010ff139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe011135f80 R15: 00007fff11a4f838
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56
Code: e8 21 8f 00 07 90 0f 0b 48 c7 c7 20 39 60 8c 4c 89 fe e8 0f 8f 00 07 90 0f 0b 48 c7 c7 80 39 60 8c 4c 89 fe e8 fd 8e 00 07 90 <0f> 0b 48 c7 c7 e0 39 60 8c 4c 89 fe e8 eb 8e 00 07 90 0f 0b 48 c7
RSP: 0018:ffffc90002f1f3a8 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: 6cee37bacfc70200
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8174a12c R09: fffffbfff1cf9fd0
R10: dffffc0000000000 R11: fffffbfff1cf9fd0 R12: dffffc0000000000
R13: ffff88807ee54cc0 R14: dead000000000100 R15: ffff88807ee54cc0
FS:  00007fe011db66c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcd5e5db08 CR3: 00000000223b6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


Tested on:

commit:         906bd684 Merge tag 'spi-fix-v6.12-rc6' of git://git.ke..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13b9c0c0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=347f0ef7656eeb41
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=12f4cea7980000

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com

Tested on:

commit:         906bd684 Merge tag 'spi-fix-v6.12-rc6' of git://git.ke..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1641cea7980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=347f0ef7656eeb41
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16a1ee30580000

Note: testing is done by a robot and is best-effort only.

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com

Tested on:

commit:         906bd684 Merge tag 'spi-fix-v6.12-rc6' of git://git.ke..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=105020c0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=347f0ef7656eeb41
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=158c835f980000

Note: testing is done by a robot and is best-effort only.

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
WARNING: suspicious RCU usage in ieee802154_remove_interfaces

usb 2-1: Please update to version 0.2 or newer
usb 2-1: USB disconnect, device number 2
=============================
WARNING: suspicious RCU usage
6.12.0-rc6-syzkaller-00169-g906bd684e4b1-dirty #0 Not tainted
-----------------------------
net/mac802154/iface.c:700 suspicious rcu_dereference_check() usage!

other info that might help us debug this:


rcu_scheduler_active = 2, debug_locks = 1
6 locks held by kworker/1:5/5934:
 #0: ffff888144284548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
 #0: ffff888144284548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
 #1: ffffc900042f7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
 #1: ffffc900042f7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
 #2: ffff888145704190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 #2: ffff888145704190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849
 #3: ffff888077b13190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 #3: ffff888077b13190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x103/0x950 drivers/usb/core/hub.c:2295
 #4: ffff888022f63160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 #4: ffff888022f63160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
 #4: ffff888022f63160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
 #5: ffffffff8fcc1408 (rtnl_mutex){+.+.}-{3:3}, at: ieee802154_unregister_hw+0x54/0xd0 net/mac802154/main.c:277

stack backtrace:
CPU: 1 UID: 0 PID: 5934 Comm: kworker/1:5 Not tainted 6.12.0-rc6-syzkaller-00169-g906bd684e4b1-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 lockdep_rcu_suspicious+0x226/0x340 kernel/locking/lockdep.c:6821
 ieee802154_remove_interfaces+0x2e8/0x2f0 net/mac802154/iface.c:700
 ieee802154_unregister_hw+0x5c/0xd0 net/mac802154/main.c:279
 atusb_disconnect+0x152/0x260 drivers/net/ieee802154/atusb.c:1077
 usb_unbind_interface+0x25e/0x940 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:569 [inline]
 __device_release_driver drivers/base/dd.c:1273 [inline]
 device_release_driver_internal+0x503/0x7c0 drivers/base/dd.c:1296
 bus_remove_device+0x34f/0x420 drivers/base/bus.c:576
 device_del+0x57a/0x9b0 drivers/base/core.c:3861
 usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1418
 usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2304
 hub_port_connect drivers/usb/core/hub.c:5361 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x1ebc/0x5150 drivers/usb/core/hub.c:5903
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

=============================
WARNING: suspicious RCU usage
6.12.0-rc6-syzkaller-00169-g906bd684e4b1-dirty #0 Not tainted
-----------------------------
net/mac802154/iface.c:700 suspicious rcu_dereference_check() usage!

other info that might help us debug this:


rcu_scheduler_active = 2, debug_locks = 1
6 locks held by kworker/1:5/5934:
 #0: ffff888144284548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
 #0: ffff888144284548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
 #1: ffffc900042f7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
 #1: ffffc900042f7d00 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
 #2: ffff888145704190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 #2: ffff888145704190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5150 drivers/usb/core/hub.c:5849
 #3: ffff888077b13190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 #3: ffff888077b13190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x103/0x950 drivers/usb/core/hub.c:2295
 #4: ffff888022f63160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 #4: ffff888022f63160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
 #4: ffff888022f63160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
 #5: ffffffff8fcc1408 (rtnl_mutex){+.+.}-{3:3}, at: ieee802154_unregister_hw+0x54/0xd0 net/mac802154/main.c:277

stack backtrace:
CPU: 1 UID: 0 PID: 5934 Comm: kworker/1:5 Not tainted 6.12.0-rc6-syzkaller-00169-g906bd684e4b1-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 lockdep_rcu_suspicious+0x226/0x340 kernel/locking/lockdep.c:6821
 ieee802154_remove_interfaces+0x272/0x2f0 net/mac802154/iface.c:700
 ieee802154_unregister_hw+0x5c/0xd0 net/mac802154/main.c:279
 atusb_disconnect+0x152/0x260 drivers/net/ieee802154/atusb.c:1077
 usb_unbind_interface+0x25e/0x940 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:569 [inline]
 __device_release_driver drivers/base/dd.c:1273 [inline]
 device_release_driver_internal+0x503/0x7c0 drivers/base/dd.c:1296
 bus_remove_device+0x34f/0x420 drivers/base/bus.c:576
 device_del+0x57a/0x9b0 drivers/base/core.c:3861
 usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1418
 usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2304
 hub_port_connect drivers/usb/core/hub.c:5361 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x1ebc/0x5150 drivers/usb/core/hub.c:5903
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
usb 2-1: new high-speed USB device number 3 using dummy_hcd
usb 2-1: New USB device found, idVendor=20b7, idProduct=1540, bcdDevice=b7.5a
usb 2-1: New USB device strings: Mfr=210, Product=154, SerialNumber=3
usb 2-1: Product: syz
usb 2-1: Manufacturer: syz
usb 2-1: SerialNumber: syz
usb 2-1: config 0 descriptor??
usb 2-1: Firmware version (0.0) predates our first public release.
usb 2-1: Please update to version 0.2 or newer
usb 2-1: USB disconnect, device number 3
usb 4-1: new high-speed USB device number 5 using dummy_hcd
usb 4-1: New USB device found, idVendor=20b7, idProduct=1540, bcdDevice=b7.5a
usb 4-1: New USB device strings: Mfr=210, Product=154, SerialNumber=3
usb 4-1: Product: syz
usb 4-1: Manufacturer: syz
usb 4-1: SerialNumber: syz
usb 4-1: config 0 descriptor??
usb 4-1: Firmware version (0.0) predates our first public release.
usb 4-1: Please update to version 0.2 or newer
usb 4-1: USB disconnect, device number 5
usb 4-1: new high-speed USB device number 6 using dummy_hcd
usb 4-1: New USB device found, idVendor=20b7, idProduct=1540, bcdDevice=b7.5a
usb 4-1: New USB device strings: Mfr=210, Product=154, SerialNumber=3
usb 4-1: Product: syz
usb 4-1: Manufacturer: syz
usb 4-1: SerialNumber: syz
usb 4-1: config 0 descriptor??
usb 4-1: Firmware version (0.0) predates our first public release.
usb 4-1: Please update to version 0.2 or newer
usb 4-1: USB disconnect, device number 6
usb 5-1: new high-speed USB device number 8 using dummy_hcd
usb 5-1: New USB device found, idVendor=20b7, idProduct=1540, bcdDevice=b7.5a
usb 5-1: New USB device strings: Mfr=210, Product=154, SerialNumber=3
usb 5-1: Product: syz
usb 5-1: Manufacturer: syz
usb 5-1: SerialNumber: syz
usb 5-1: config 0 descriptor??
usb 5-1: Firmware version (0.0) predates our first public release.
usb 5-1: Please update to version 0.2 or newer
usb 5-1: USB disconnect, device number 8


Tested on:

commit:         906bd684 Merge tag 'spi-fix-v6.12-rc6' of git://git.ke..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=17c42ea7980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=347f0ef7656eeb41
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=16d5835f980000

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com

Tested on:

commit:         da4373fb Merge tag 'thermal-6.12-rc7' of git://git.ker..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=16a3a0c0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=347f0ef7656eeb41
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=162aaea7980000

Note: testing is done by a robot and is best-effort only.

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com

Tested on:

commit:         2d5404ca Linux 6.12-rc7
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1608335f980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1503500c6f615d24
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=109ed35f980000

Note: testing is done by a robot and is best-effort only.

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com

Tested on:

commit:         2d5404ca Linux 6.12-rc7
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=134afea7980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1503500c6f615d24
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=17b1f4e8580000

Note: testing is done by a robot and is best-effort only.

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
kernel BUG in ieee802154_del_iface

------------[ cut here ]------------
kernel BUG at net/core/dev.c:11375!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 7336 Comm: syz.4.73 Not tainted 6.12.0-rc7-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:unregister_netdevice_many_notify+0x1d84/0x1da0 net/core/dev.c:11375
Code: 01 90 48 c7 c7 80 fe 0c 8d 48 c7 c6 60 fe 0c 8d ba 8b 17 00 00 e8 8c 47 c8 f7 90 0f 0b 90 90 e9 67 e8 ff ff e8 9d 51 07 f8 90 <0f> 0b e8 95 51 07 f8 90 0f 0b e8 dd 5e 31 02 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc90004607160 EFLAGS: 00010293
RAX: ffffffff898d8813 RBX: 0000000000000002 RCX: ffff88802c1e5a00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffffc90004607350 R08: ffffffff898d6ca6 R09: 1ffffffff1f98274
R10: dffffc0000000000 R11: fffffbfff1f98275 R12: dead000000000100
R13: ffff888028cf06c1 R14: ffffc900046073a0 R15: 1ffff1100519e031
FS:  00007fc796c396c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005587e87f1950 CR3: 0000000033264000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 unregister_netdevice_many net/core/dev.c:11469 [inline]
 unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11343
 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline]
 ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
 ___sys_sendmsg net/socket.c:2661 [inline]
 __sys_sendmsg+0x292/0x380 net/socket.c:2690
 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: 0033:0x7fc795d7e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc796c39038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc795f35f80 RCX: 00007fc795d7e719
RDX: 0000000004000000 RSI: 0000000020000b00 RDI: 0000000000000005
RBP: 00007fc795df139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc795f35f80 R15: 00007ffe0c919b58
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:unregister_netdevice_many_notify+0x1d84/0x1da0 net/core/dev.c:11375
Code: 01 90 48 c7 c7 80 fe 0c 8d 48 c7 c6 60 fe 0c 8d ba 8b 17 00 00 e8 8c 47 c8 f7 90 0f 0b 90 90 e9 67 e8 ff ff e8 9d 51 07 f8 90 <0f> 0b e8 95 51 07 f8 90 0f 0b e8 dd 5e 31 02 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc90004607160 EFLAGS: 00010293
RAX: ffffffff898d8813 RBX: 0000000000000002 RCX: ffff88802c1e5a00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffffc90004607350 R08: ffffffff898d6ca6 R09: 1ffffffff1f98274
R10: dffffc0000000000 R11: fffffbfff1f98275 R12: dead000000000100
R13: ffff888028cf06c1 R14: ffffc900046073a0 R15: 1ffff1100519e031
FS:  00007fc796c396c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f392374d440 CR3: 0000000033264000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400


Tested on:

commit:         2d5404ca Linux 6.12-rc7
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=14e7fe30580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1503500c6f615d24
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=15f001a7980000

Re: [syzbot] [wpan?] [usb?] BUG: corrupted list in ieee802154_if_remove

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com

Tested on:

commit:         2d5404ca Linux 6.12-rc7
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1298f8c0580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1503500c6f615d24
dashboard link: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1130f8c0580000

Note: testing is done by a robot and is best-effort only.