[syzbot] [net?] BUG: sleeping function called from invalid context in dev_set_allmulti

From: syzbot
Date: Tue Mar 11 2025 - 12:36:34 EST

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Hello,

syzbot found the following issue on:

HEAD commit: 40587f749df2 Merge branch 'enic-enable-32-64-byte-cqes-and..
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=16b35478580000
kernel config: https://syzkaller.appspot.com/x/.config?x=ca99d9d1f4a8ecfa
dashboard link: https://syzkaller.appspot.com/bug?extid=368054937a6a7ead5f35
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/6d02993a9211/disk-40587f74.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/2c8b300bf362/vmlinux-40587f74.xz
kernel image: https://storage.googleapis.com/syzbot-assets/2d5be21882cf/bzImage-40587f74.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+368054937a6a7ead5f35@xxxxxxxxxxxxxxxxxxxxxxxxx

vlan2: entered allmulticast mode
bond0: entered allmulticast mode
bond_slave_0: entered allmulticast mode
bond_slave_1: entered allmulticast mode
team0: entered allmulticast mode
team_slave_0: entered allmulticast mode
team_slave_1: entered allmulticast mode
batadv0: entered allmulticast mode
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:562
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 23629, name: syz.4.5165
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
3 locks held by syz.4.5165/23629:
#0: ffffffff903f0bd0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff903f0bd0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff903f0bd0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x22/0x250 net/core/rtnetlink.c:570
#1: ffffffff8fed6908 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#1: ffffffff8fed6908 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
#1: ffffffff8fed6908 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc4c/0x1d90 net/core/rtnetlink.c:4054
#2: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x29/0x330 drivers/net/team/team_core.c:1781
CPU: 1 UID: 0 PID: 23629 Comm: syz.4.5165 Not tainted 6.14.0-rc5-syzkaller-01183-g40587f749df2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
__might_resched+0x5d4/0x780 kernel/sched/core.c:8767
__mutex_lock_common kernel/locking/mutex.c:562 [inline]
__mutex_lock+0x126/0x1010 kernel/locking/mutex.c:730
netdev_lock include/linux/netdevice.h:2731 [inline]
netdev_lock_ops include/net/netdev_lock.h:40 [inline]
dev_set_allmulti+0x11c/0x270 net/core/dev_api.c:279
team_change_rx_flags+0x1a8/0x330 drivers/net/team/team_core.c:1789
dev_change_rx_flags net/core/dev.c:9154 [inline]
netif_set_allmulti+0x20e/0x380 net/core/dev.c:9256
dev_set_allmulti+0x143/0x270 net/core/dev_api.c:280
bond_set_allmulti drivers/net/bonding/bond_main.c:946 [inline]
bond_change_rx_flags+0x4e1/0x6b0 drivers/net/bonding/bond_main.c:4737
dev_change_rx_flags net/core/dev.c:9154 [inline]
netif_set_allmulti+0x20e/0x380 net/core/dev.c:9256
dev_set_allmulti+0x143/0x270 net/core/dev_api.c:280
vlan_dev_open+0x2be/0x8a0 net/8021q/vlan_dev.c:278
__dev_open+0x45a/0x8a0 net/core/dev.c:1644
netif_open+0xae/0x1b0 net/core/dev.c:1667
dev_open+0x13e/0x260 net/core/dev_api.c:191
bond_enslave+0x103c/0x3910 drivers/net/bonding/bond_main.c:2135
do_set_master+0x579/0x730 net/core/rtnetlink.c:2943
rtnl_newlink_create+0x6e6/0xbd0 net/core/rtnetlink.c:3837
__rtnl_newlink net/core/rtnetlink.c:3940 [inline]
rtnl_newlink+0x167a/0x1d90 net/core/rtnetlink.c:4055
rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6945
netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2534
netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1339
netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1883
sock_sendmsg_nosec net/socket.c:709 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:724
____sys_sendmsg+0x53a/0x860 net/socket.c:2564
___sys_sendmsg net/socket.c:2618 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2650
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: 0033:0x7fe00998d169
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:00007fe00a843038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe009ba5fa0 RCX: 00007fe00998d169
RDX: 0000000000000000 RSI: 0000400000000280 RDI: 0000000000000003
RBP: 00007fe009a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe009ba5fa0 R15: 00007ffdc9be6f48
</TASK>

=============================
[ BUG: Invalid wait context ]
6.14.0-rc5-syzkaller-01183-g40587f749df2 #0 Tainted: G W
-----------------------------
syz.4.5165/23629 is trying to lock:
ffff88807bce0d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2731 [inline]
ffff88807bce0d28 (&dev->lock){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:40 [inline]
ffff88807bce0d28 (&dev->lock){+.+.}-{4:4}, at: dev_set_allmulti+0x11c/0x270 net/core/dev_api.c:279
other info that might help us debug this:
context-{5:5}
3 locks held by syz.4.5165/23629:
#0: ffffffff903f0bd0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff903f0bd0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff903f0bd0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x22/0x250 net/core/rtnetlink.c:570
#1: ffffffff8fed6908 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#1: ffffffff8fed6908 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
#1: ffffffff8fed6908 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xc4c/0x1d90 net/core/rtnetlink.c:4054
#2: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8eb392e0 (rcu_read_lock){....}-{1:3}, at: team_change_rx_flags+0x29/0x330 drivers/net/team/team_core.c:1781
stack backtrace:
CPU: 1 UID: 0 PID: 23629 Comm: syz.4.5165 Tainted: G W 6.14.0-rc5-syzkaller-01183-g40587f749df2 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4828 [inline]
check_wait_context kernel/locking/lockdep.c:4900 [inline]
__lock_acquire+0x15a8/0x2100 kernel/locking/lockdep.c:5178
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19c/0x1010 kernel/locking/mutex.c:730
netdev_lock include/linux/netdevice.h:2731 [inline]
netdev_lock_ops include/net/netdev_lock.h:40 [inline]
dev_set_allmulti+0x11c/0x270 net/core/dev_api.c:279
team_change_rx_flags+0x1a8/0x330 drivers/net/team/team_core.c:1789
dev_change_rx_flags net/core/dev.c:9154 [inline]
netif_set_allmulti+0x20e/0x380 net/core/dev.c:9256
dev_set_allmulti+0x143/0x270 net/core/dev_api.c:280
bond_set_allmulti drivers/net/bonding/bond_main.c:946 [inline]
bond_change_rx_flags+0x4e1/0x6b0 drivers/net/bonding/bond_main.c:4737
dev_change_rx_flags net/core/dev.c:9154 [inline]
netif_set_allmulti+0x20e/0x380 net/core/dev.c:9256
dev_set_allmulti+0x143/0x270 net/core/dev_api.c:280
vlan_dev_open+0x2be/0x8a0 net/8021q/vlan_dev.c:278
__dev_open+0x45a/0x8a0 net/core/dev.c:1644
netif_open+0xae/0x1b0 net/core/dev.c:1667
dev_open+0x13e/0x260 net/core/dev_api.c:191
bond_enslave+0x103c/0x3910 drivers/net/bonding/bond_main.c:2135
do_set_master+0x579/0x730 net/core/rtnetlink.c:2943
rtnl_newlink_create+0x6e6/0xbd0 net/core/rtnetlink.c:3837
__rtnl_newlink net/core/rtnetlink.c:3940 [inline]
rtnl_newlink+0x167a/0x1d90 net/core/rtnetlink.c:4055
rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6945
netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2534
netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1339
netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1883
sock_sendmsg_nosec net/socket.c:709 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:724
____sys_sendmsg+0x53a/0x860 net/socket.c:2564
___sys_sendmsg net/socket.c:2618 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2650
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: 0033:0x7fe00998d169
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:00007fe00a843038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe009ba5fa0 RCX: 00007fe00998d169
RDX: 0000000000000000 RSI: 0000400000000280 RDI: 0000000000000003
RBP: 00007fe009a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe009ba5fa0 R15: 00007ffdc9be6f48
</TASK>
netdevsim netdevsim4 netdevsim0: entered allmulticast mode
bond0: left allmulticast mode
bond_slave_0: left allmulticast mode
bond_slave_1: left allmulticast mode
team0: left allmulticast mode
team_slave_0: left allmulticast mode
team_slave_1: left allmulticast mode
batadv0: left allmulticast mode
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:562
in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 23629, name: syz.4.5165
preempt_count: 0, expected: 0
RCU nest depth: 1, expected: 0
INFO: lockdep is turned off.
CPU: 0 UID: 0 PID: 23629 Comm: syz.4.5165 Tainted: G W 6.14.0-rc5-syzkaller-01183-g40587f749df2 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
__might_resched+0x5d4/0x780 kernel/sched/core.c:8767
__mutex_lock_common kernel/locking/mutex.c:562 [inline]
__mutex_lock+0x126/0x1010 kernel/locking/mutex.c:730
netdev_lock include/linux/netdevice.h:2731 [inline]
netdev_lock_ops include/net/netdev_lock.h:40 [inline]
dev_set_allmulti+0x11c/0x270 net/core/dev_api.c:279
team_change_rx_flags+0x1a8/0x330 drivers/net/team/team_core.c:1789
dev_change_rx_flags net/core/dev.c:9154 [inline]
netif_set_allmulti+0x20e/0x380 net/core/dev.c:9256
dev_set_allmulti+0x143/0x270 net/core/dev_api.c:280
bond_set_allmulti drivers/net/bonding/bond_main.c:946 [inline]
bond_change_rx_flags+0x4e1/0x6b0 drivers/net/bonding/bond_main.c:4737
dev_change_rx_flags net/core/dev.c:9154 [inline]
netif_set_allmulti+0x20e/0x380 net/core/dev.c:9256
dev_set_allmulti+0x143/0x270 net/core/dev_api.c:280
vlan_dev_stop+0xb0/0x330 net/8021q/vlan_dev.c:320
__dev_close_many+0x3a6/0x700 net/core/dev.c:1717
dev_close_many+0x24e/0x4c0 net/core/dev.c:1742
netif_close+0x1c0/0x2c0 net/core/dev.c:1759
dev_close+0x137/0x280 net/core/dev_api.c:210
bond_enslave+0x26ca/0x3910 drivers/net/bonding/bond_main.c:2438
do_set_master+0x579/0x730 net/core/rtnetlink.c:2943
rtnl_newlink_create+0x6e6/0xbd0 net/core/rtnetlink.c:3837
__rtnl_newlink net/core/rtnetlink.c:3940 [inline]
rtnl_newlink+0x167a/0x1d90 net/core/rtnetlink.c:4055
rtnetlink_rcv_msg+0x791/0xcf0 net/core/rtnetlink.c:6945
netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2534
netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1339
netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1883
sock_sendmsg_nosec net/socket.c:709 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:724
____sys_sendmsg+0x53a/0x860 net/socket.c:2564
___sys_sendmsg net/socket.c:2618 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2650
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: 0033:0x7fe00998d169
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:00007fe00a843038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fe009ba5fa0 RCX: 00007fe00998d169
RDX: 0000000000000000 RSI: 0000400000000280 RDI: 0000000000000003
RBP: 00007fe009a0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe009ba5fa0 R15: 00007ffdc9be6f48
</TASK>
netdevsim netdevsim4 netdevsim0: left allmulticast mode

---
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Next message: Li Li: "Re: [PATCH v16 1/3] lsm, selinux: Add setup_report permission to binder"
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