INFO: task syz.3.15:5361 blocked for more than 143 seconds.
Not tainted 6.11.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.15 state:D stack:26816 pid:5361 tgid:5354 ppid:5230 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1580
inode_lock include/linux/fs.h:799 [inline]
__generic_file_fsync+0x9a/0x190 fs/libfs.c:1533
generic_file_fsync+0x73/0xf0 fs/libfs.c:1570
vfs_fsync_range fs/sync.c:188 [inline]
vfs_fsync fs/sync.c:202 [inline]
do_fsync fs/sync.c:212 [inline]
__do_sys_fdatasync fs/sync.c:225 [inline]
__se_sys_fdatasync fs/sync.c:223 [inline]
__x64_sys_fdatasync+0xba/0x110 fs/sync.c:223
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: 0033:0x7f0f76179e79
RSP: 002b:00007f0f76fc9038 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
RAX: ffffffffffffffda RBX: 00007f0f76316058 RCX: 00007f0f76179e79
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007f0f761e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0f76316058 R15: 00007ffceb1c5278
INFO: task syz.3.15:5366 blocked for more than 143 seconds.
Not tainted 6.11.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.15 state:D stack:27392 pid:5366 tgid:5354 ppid:5230 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write_nested+0x1e0/0x220 kernel/locking/rwsem.c:1696
inode_lock_nested include/linux/fs.h:834 [inline]
filename_create+0x260/0x540 fs/namei.c:3979
do_symlinkat+0xf9/0x3a0 fs/namei.c:4587
__do_sys_symlink fs/namei.c:4615 [inline]
__se_sys_symlink fs/namei.c:4613 [inline]
__x64_sys_symlink+0x7a/0x90 fs/namei.c:4613
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: 0033:0x7f0f76179e79
RSP: 002b:00007f0f76fa8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 00007f0f76316130 RCX: 00007f0f76179e79
RDX: 0000000000000000 RSI: 0000000020000cc0 RDI: 0000000020000dc0
RBP: 00007f0f761e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0f76316130 R15: 00007ffceb1c5278
INFO: task syz.3.15:5367 blocked for more than 144 seconds.
Not tainted 6.11.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.15 state:D stack:27392 pid:5367 tgid:5354 ppid:5230 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:809 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1734
walk_component+0x2e1/0x410 fs/namei.c:2039
lookup_last fs/namei.c:2542 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2566
filename_lookup+0x256/0x610 fs/namei.c:2595
do_readlinkat+0xf0/0x3a0 fs/stat.c:537
__do_sys_readlink fs/stat.c:574 [inline]
__se_sys_readlink fs/stat.c:571 [inline]
__x64_sys_readlink+0x7f/0x90 fs/stat.c:571
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: 0033:0x7f0f76179e79
RSP: 002b:00007f0f76f87038 EFLAGS: 00000246 ORIG_RAX: 0000000000000059
RAX: ffffffffffffffda RBX: 00007f0f76316208 RCX: 00007f0f76179e79
RDX: 0000000000001000 RSI: 0000000020001200 RDI: 0000000020000240
RBP: 00007f0f761e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0f76316208 R15: 00007ffceb1c5278
INFO: task syz.3.15:5370 blocked for more than 145 seconds.
Not tainted 6.11.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.15 state:D stack:24992 pid:5370 tgid:5354 ppid:5230 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write_nested+0x1e0/0x220 kernel/locking/rwsem.c:1696
inode_lock_nested include/linux/fs.h:834 [inline]
filename_create+0x260/0x540 fs/namei.c:3979
do_mkdirat+0xbd/0x3a0 fs/namei.c:4225
__do_sys_mkdir fs/namei.c:4253 [inline]
__se_sys_mkdir fs/namei.c:4251 [inline]
__x64_sys_mkdir+0x6c/0x80 fs/namei.c:4251
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: 0033:0x7f0f76179e79
RSP: 002b:00007f0f76f66038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f0f763162e0 RCX: 00007f0f76179e79
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000300
RBP: 00007f0f761e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0f763162e0 R15: 00007ffceb1c5278
INFO: task syz.3.15:5380 blocked for more than 145 seconds.
Not tainted 6.11.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.15 state:D stack:27392 pid:5380 tgid:5354 ppid:5230 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write_nested+0x1e0/0x220 kernel/locking/rwsem.c:1696
inode_lock_nested include/linux/fs.h:834 [inline]
filename_create+0x260/0x540 fs/namei.c:3979
do_mkdirat+0xbd/0x3a0 fs/namei.c:4225
__do_sys_mkdirat fs/namei.c:4248 [inline]
__se_sys_mkdirat fs/namei.c:4246 [inline]
__x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4246
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: 0033:0x7f0f76179e79
RSP: 002b:00007f0f76f45038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f0f763163b8 RCX: 00007f0f76179e79
RDX: 0000000000000000 RSI: 0000000020000340 RDI: ffffffffffffff9c
RBP: 00007f0f761e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0f763163b8 R15: 00007ffceb1c5278
INFO: task syz.3.15:5381 blocked for more than 146 seconds.
Not tainted 6.11.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.15 state:D stack:27392 pid:5381 tgid:5354 ppid:5230 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common kernel/locking/rwsem.c:1306 [inline]
__down_write kernel/locking/rwsem.c:1315 [inline]
down_write_nested+0x1e0/0x220 kernel/locking/rwsem.c:1696
inode_lock_nested include/linux/fs.h:834 [inline]
filename_create+0x260/0x540 fs/namei.c:3979
do_mkdirat+0xbd/0x3a0 fs/namei.c:4225
__do_sys_mkdirat fs/namei.c:4248 [inline]
__se_sys_mkdirat fs/namei.c:4246 [inline]
__x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4246
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: 0033:0x7f0f76179e79
RSP: 002b:00007f0f76f24038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f0f76316490 RCX: 00007f0f76179e79
RDX: 0000000000000000 RSI: 0000000020000100 RDI: ffffffffffffff9c
RBP: 00007f0f761e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0f76316490 R15: 00007ffceb1c5278
INFO: task syz.3.15:5382 blocked for more than 147 seconds.
Not tainted 6.11.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.15 state:D stack:27392 pid:5382 tgid:5354 ppid:5230 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
inode_lock_shared include/linux/fs.h:809 [inline]
lookup_slow+0x45/0x70 fs/namei.c:1734
walk_component+0x2e1/0x410 fs/namei.c:2039
lookup_last fs/namei.c:2542 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2566
filename_lookup+0x256/0x610 fs/namei.c:2595
user_path_at+0x3a/0x60 fs/namei.c:3002
do_mount fs/namespace.c:3809 [inline]
__do_sys_mount fs/namespace.c:4020 [inline]
__se_sys_mount+0x297/0x3c0 fs/namespace.c:3997
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: 0033:0x7f0f76179e79
RSP: 002b:00007f0f76f03038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f0f76316568 RCX: 00007f0f76179e79
RDX: 0000000020000340 RSI: 00000000200000c0 RDI: 0000000000000000
RBP: 00007f0f761e7916 R08: 0000000020000180 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0f76316568 R15: 00007ffceb1c5278
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e7382e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff8e7382e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff8e7382e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626
4 locks held by kworker/u8:7/1076:
#0: ffff8880162e3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff8880162e3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90003a47d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90003a47d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8fa654d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3: ffffffff8fa72088 (rtnl_mutex){+.+.}-{3:3}, at: wg_destruct+0x25/0x2e0 drivers/net/wireguard/device.c:246
2 locks held by dhcpcd/4885:
#0:
ffff88801f9d6678
(
nlk_cb_mutex-ROUTE
){+.+.}-{3:3}
, at: __netlink_dump_start+0x119/0x790 net/netlink/af_netlink.c:2404
#1: ffffffff8fa72088 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fa72088 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_dumpit+0x99/0x200 net/core/rtnetlink.c:6506
2 locks held by getty/4979:
#0: ffff88802acce0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by syz.3.15/5355:
1 lock held by syz.3.15/5361:
#0: ffff8880562a4180 (
&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock include/linux/fs.h:799 [inline]
&type->i_mutex_dir_key#11){++++}-{3:3}, at: __generic_file_fsync+0x9a/0x190 fs/libfs.c:1533
1 lock held by syz.3.15/5366:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:834 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3979
1 lock held by syz.3.15/5367:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:809 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1734
1 lock held by syz.3.15/5370:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:834 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3979
1 lock held by syz.3.15/5380:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:834 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3979
1 lock held by syz.3.15/5381:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:834 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:3979
1 lock held by syz.3.15/5382:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:809 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1734
1 lock held by syz.3.15/5384:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:809 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1734
1 lock held by syz.3.15/5385:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock include/linux/fs.h:799 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: open_last_lookups fs/namei.c:3644 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: path_openat+0x7fb/0x3470 fs/namei.c:3883
1 lock held by syz.3.15/5386:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:809 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: open_last_lookups fs/namei.c:3646 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: path_openat+0x7ec/0x3470 fs/namei.c:3883
1 lock held by syz.3.15/5387:
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:809 [inline]
#0: ffff8880562a4180 (&type->i_mutex_dir_key#11){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1734
2 locks held by syz-executor/6991:
#0: ffffffff8fa72088 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fa72088 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6644
#1: ffffffff8e73d6b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:328 [inline]
#1: ffffffff8e73d6b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:958
2 locks held by syz-executor/7072:
#0: ffffffff8fa654d0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504
#1: ffffffff8fa72088 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x13/0x50 net/core/dev.c:10579
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
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
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6991 Comm: syz-executor Not tainted 6.11.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:unwind_next_frame+0x457/0x2a00 arch/x86/kernel/unwind_orc.c:494
Code: 63 52 00 48 85 db 0f 84 d2 02 00 00 4d 8d 6c 9f fc 4d 39 fd 0f 83 cc 13 00 00 e8 c4 5e 52 00 4c 89 f9 4d 89 fc e9 55 14 00 00 <4a> 8d 1c bd cc ab 03 90 45 29 fc 4e 8d 64 a3 fc 49 39 dc 73 4d e8
RSP: 0018:ffffc90003e16908 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffffff9144b9f0 RCX: ffffffff90fb9e52
RDX: ffff888020bdda00 RSI: 0000000000162ee4 RDI: 0000000000162ee5
RBP: 0000000000087bcf R08: ffffffff81412a2e R09: ffffc90003e16ad0
R10: 0000000000000003 R11: ffffffff817f3050 R12: 0000000000162ee5
R13: 00000000000ae001 R14: dffffc0000000000 R15: 0000000000162ee4
FS: 00005555751a8500(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d976762000 CR3: 000000007de72000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
__kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2252 [inline]
slab_free mm/slub.c:4473 [inline]
kfree+0x149/0x360 mm/slub.c:4594
kobject_uevent_env+0x54d/0x8e0 lib/kobject_uevent.c:640
__kobject_del+0xd3/0x310 lib/kobject.c:601
kobject_cleanup lib/kobject.c:680 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x245/0x480 lib/kobject.c:737
netdev_queue_update_kobjects+0x556/0x5f0 net/core/net-sysfs.c:1854
netif_set_real_num_tx_queues+0x18a/0x900 net/core/dev.c:2942
veth_init_queues+0x82/0x180 drivers/net/veth.c:1755
veth_newlink+0xa2e/0xce0 drivers/net/veth.c:1878
rtnl_newlink_create net/core/rtnetlink.c:3510 [inline]
__rtnl_newlink net/core/rtnetlink.c:3730 [inline]
rtnl_newlink+0x1591/0x20a0 net/core/rtnetlink.c:3743
rtnetlink_rcv_msg+0x73f/0xcf0 net/core/rtnetlink.c:6647
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
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:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
__sys_sendto+0x3a4/0x4f0 net/socket.c:2204
__do_sys_sendto net/socket.c:2216 [inline]
__se_sys_sendto net/socket.c:2212 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2212
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: 0033:0x7f9b6197bd0c
Code: 2a 5a 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5a 02 00 48 8b
RSP: 002b:00007ffc6798d3d0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f9b62644620 RCX: 00007f9b6197bd0c
RDX: 0000000000000068 RSI: 00007f9b62644670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffc6798d424 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f9b62644670 R15: 0000000000000000