Extracting prog: 2m43.889114768s Minimizing prog: 5m26.27830178s Simplifying prog options: 0s Extracting C: 30.31155359s Simplifying C: 8m22.370897073s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE detailed listing: executing program 0: r0 = socket$inet_udplite(0x2, 0x2, 0x88) setsockopt$IPT_SO_SET_REPLACE(r0, 0x4000000000000, 0x40, &(0x7f0000000640)=@raw={'raw\x00', 0x4001, 0x3, 0x1318, 0x1158, 0x0, 0x148, 0x1158, 0x148, 0x1280, 0x240, 0x240, 0x1280, 0x240, 0x7fffffe, 0x0, {[{{@ip={@multicast2, @remote, 0x0, 0x0, 'ip6gretap0\x00', 'bridge0\x00'}, 0x0, 0x10f8, 0x1158, 0x0, {}, [@common=@inet=@hashlimit1={{0x58}, {'lo\x00', {0x0, 0x0, 0x1ff, 0x0, 0x0, 0xed, 0x7}}}, @common=@unspec=@cgroup1={{0x1030}, {0x1, 0x0, 0x0, 0x0, './cgroup/syz0\x00'}}]}, @common=@CLUSTERIP={0x60, 'CLUSTERIP\x00', 0x0, {0x0, @multicast}}}, {{@uncond, 0x0, 0xc0, 0x128, 0x0, {}, [@inet=@rpfilter={{0x28}}, @inet=@rpfilter={{0x28}}]}, @unspec=@CT2={0x68, 'CT\x00', 0x2, {0x0, 0x0, 0x0, 0x0, 'pptp\x00', 'syz1\x00'}}}], {{'\x00', 0x0, 0x70, 0x98}, {0x28}}}}, 0x1378) program crashed: BUG: sleeping function called from invalid context in kernfs_walk_and_get_ns single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=1m8.769419067s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite detailed listing: executing program 0: socket$inet_udplite(0x2, 0x2, 0x88) program did not crash testing program (duration=1m8.769419067s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): setsockopt$IPT_SO_SET_REPLACE detailed listing: executing program 0: setsockopt$IPT_SO_SET_REPLACE(0xffffffffffffffff, 0x4000000000000, 0x40, &(0x7f0000000640)=@raw={'raw\x00', 0x4001, 0x3, 0x1318, 0x1158, 0x0, 0x148, 0x1158, 0x148, 0x1280, 0x240, 0x240, 0x1280, 0x240, 0x7fffffe, 0x0, {[{{@ip={@multicast2, @remote, 0x0, 0x0, 'ip6gretap0\x00', 'bridge0\x00'}, 0x0, 0x10f8, 0x1158, 0x0, {}, [@common=@inet=@hashlimit1={{0x58}, {'lo\x00', {0x0, 0x0, 0x1ff, 0x0, 0x0, 0xed, 0x7}}}, @common=@unspec=@cgroup1={{0x1030}, {0x1, 0x0, 0x0, 0x0, './cgroup/syz0\x00'}}]}, @common=@CLUSTERIP={0x60, 'CLUSTERIP\x00', 0x0, {0x0, @multicast}}}, {{@uncond, 0x0, 0xc0, 0x128, 0x0, {}, [@inet=@rpfilter={{0x28}}, @inet=@rpfilter={{0x28}}]}, @unspec=@CT2={0x68, 'CT\x00', 0x2, {0x0, 0x0, 0x0, 0x0, 'pptp\x00', 'syz1\x00'}}}], {{'\x00', 0x0, 0x70, 0x98}, {0x28}}}}, 0x1378) program did not crash testing program (duration=1m8.769419067s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE detailed listing: executing program 0: r0 = socket$inet_udplite(0x2, 0x2, 0x88) setsockopt$IPT_SO_SET_REPLACE(r0, 0x4000000000000, 0x40, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=1m8.769419067s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE program crashed: BUG: sleeping function called from invalid context in kernfs_walk_and_get_ns simplifying C reproducer testing compiled C program (duration=1m8.769419067s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE program crashed: BUG: sleeping function called from invalid context in kernfs_walk_and_get_ns testing compiled C program (duration=1m8.769419067s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE program crashed: BUG: sleeping function called from invalid context in kernfs_walk_and_get_ns testing compiled C program (duration=1m8.769419067s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE program crashed: BUG: sleeping function called from invalid context in kernfs_walk_and_get_ns testing compiled C program (duration=1m8.769419067s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE program crashed: BUG: sleeping function called from invalid context in kernfs_walk_and_get_ns testing compiled C program (duration=1m8.769419067s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE program crashed: BUG: sleeping function called from invalid context in kernfs_walk_and_get_ns testing compiled C program (duration=1m8.769419067s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE program crashed: BUG: sleeping function called from invalid context in kernfs_walk_and_get_ns testing compiled C program (duration=1m8.769419067s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udplite-setsockopt$IPT_SO_SET_REPLACE program crashed: BUG: sleeping function called from invalid context in kernfs_walk_and_get_ns reproducing took 17m2.84989014s repro crashed as (corrupted=false): BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1497 in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 4019, name: syz-executor382 1 lock held by syz-executor382/4019: #0: ffff800014d67718 (css_set_lock){....}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:388 [inline] #0: ffff800014d67718 (css_set_lock){....}-{2:2}, at: cgroup_get_from_path+0x30/0x300 kernel/cgroup/cgroup.c:6623 irq event stamp: 632 hardirqs last enabled at (631): [] queue_delayed_work_on+0x238/0x330 kernel/workqueue.c:1719 hardirqs last disabled at (632): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (632): [] _raw_spin_lock_irq+0x38/0x13c kernel/locking/spinlock.c:170 softirqs last enabled at (532): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (532): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (521): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (521): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (521): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (521): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 Preemption disabled at: [] spin_lock_irq include/linux/spinlock.h:388 [inline] [] cgroup_get_from_path+0x30/0x300 kernel/cgroup/cgroup.c:6623 CPU: 1 PID: 4019 Comm: syz-executor382 Not tainted 5.15.177-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 ___might_sleep+0x380/0x4dc kernel/sched/core.c:9636 __might_sleep+0x98/0xf0 kernel/sched/core.c:9590 down_read+0x34/0x398 kernel/locking/rwsem.c:1497 kernfs_walk_and_get_ns+0x8c/0x310 fs/kernfs/dir.c:908 kernfs_walk_and_get include/linux/kernfs.h:559 [inline] cgroup_get_from_path+0x64/0x300 kernel/cgroup/cgroup.c:6625 cgroup_mt_check_v1+0x18c/0x278 net/netfilter/xt_cgroup.c:56 xt_check_match+0x338/0x914 net/netfilter/x_tables.c:523 check_match net/ipv4/netfilter/ip_tables.c:472 [inline] find_check_match net/ipv4/netfilter/ip_tables.c:488 [inline] find_check_entry net/ipv4/netfilter/ip_tables.c:538 [inline] translate_table+0x10a0/0x1a98 net/ipv4/netfilter/ip_tables.c:717 do_replace net/ipv4/netfilter/ip_tables.c:1138 [inline] do_ipt_set_ctl+0xb8c/0x1164 net/ipv4/netfilter/ip_tables.c:1636 nf_setsockopt+0x270/0x290 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0x1d70/0x32cc net/ipv4/ip_sockglue.c:1442 udp_setsockopt+0xa4/0xbc net/ipv4/udp.c:2818 sock_common_setsockopt+0xb0/0xcc net/core/sock.c:3448 __sys_setsockopt+0x3a8/0x6b4 net/socket.c:2203 __do_sys_setsockopt net/socket.c:2214 [inline] __se_sys_setsockopt net/socket.c:2211 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 ============================= [ BUG: Invalid wait context ] 5.15.177-syzkaller #0 Tainted: G W ----------------------------- syz-executor382/4019 is trying to lock: ffff800014e682b0 (kernfs_rwsem){++++}-{3:3}, at: kernfs_walk_and_get_ns+0x8c/0x310 fs/kernfs/dir.c:908 other info that might help us debug this: context-{4:4} 1 lock held by syz-executor382/4019: #0: ffff800014d67718 (css_set_lock){....}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:388 [inline] #0: ffff800014d67718 (css_set_lock){....}-{2:2}, at: cgroup_get_from_path+0x30/0x300 kernel/cgroup/cgroup.c:6623 stack backtrace: CPU: 1 PID: 4019 Comm: syz-executor382 Tainted: G W 5.15.177-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_lock_invalid_wait_context kernel/locking/lockdep.c:4664 [inline] check_wait_context kernel/locking/lockdep.c:4725 [inline] __lock_acquire+0x1af0/0x7638 kernel/locking/lockdep.c:4962 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 down_read+0xc0/0x398 kernel/locking/rwsem.c:1498 kernfs_walk_and_get_ns+0x8c/0x310 fs/kernfs/dir.c:908 kernfs_walk_and_get include/linux/kernfs.h:559 [inline] cgroup_get_from_path+0x64/0x300 kernel/cgroup/cgroup.c:6625 cgroup_mt_check_v1+0x18c/0x278 net/netfilter/xt_cgroup.c:56 xt_check_match+0x338/0x914 net/netfilter/x_tables.c:523 check_match net/ipv4/netfilter/ip_tables.c:472 [inline] find_check_match net/ipv4/netfilter/ip_tables.c:488 [inline] find_check_entry net/ipv4/netfilter/ip_tables.c:538 [inline] translate_table+0x10a0/0x1a98 net/ipv4/netfilter/ip_tables.c:717 do_replace net/ipv4/netfilter/ip_tables.c:1138 [inline] do_ipt_set_ctl+0xb8c/0x1164 net/ipv4/netfilter/ip_tables.c:1636 nf_setsockopt+0x270/0x290 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0x1d70/0x32cc net/ipv4/ip_sockglue.c:1442 udp_setsockopt+0xa4/0xbc net/ipv4/udp.c:2818 sock_common_setsockopt+0xb0/0xcc net/core/sock.c:3448 __sys_setsockopt+0x3a8/0x6b4 net/socket.c:2203 __do_sys_setsockopt net/socket.c:2214 [inline] __se_sys_setsockopt net/socket.c:2211 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 xt_cgroup: invalid path, errno=-2 final repro crashed as (corrupted=false): BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1497 in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 4019, name: syz-executor382 1 lock held by syz-executor382/4019: #0: ffff800014d67718 (css_set_lock){....}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:388 [inline] #0: ffff800014d67718 (css_set_lock){....}-{2:2}, at: cgroup_get_from_path+0x30/0x300 kernel/cgroup/cgroup.c:6623 irq event stamp: 632 hardirqs last enabled at (631): [] queue_delayed_work_on+0x238/0x330 kernel/workqueue.c:1719 hardirqs last disabled at (632): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (632): [] _raw_spin_lock_irq+0x38/0x13c kernel/locking/spinlock.c:170 softirqs last enabled at (532): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (532): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (521): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (521): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (521): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (521): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 Preemption disabled at: [] spin_lock_irq include/linux/spinlock.h:388 [inline] [] cgroup_get_from_path+0x30/0x300 kernel/cgroup/cgroup.c:6623 CPU: 1 PID: 4019 Comm: syz-executor382 Not tainted 5.15.177-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 ___might_sleep+0x380/0x4dc kernel/sched/core.c:9636 __might_sleep+0x98/0xf0 kernel/sched/core.c:9590 down_read+0x34/0x398 kernel/locking/rwsem.c:1497 kernfs_walk_and_get_ns+0x8c/0x310 fs/kernfs/dir.c:908 kernfs_walk_and_get include/linux/kernfs.h:559 [inline] cgroup_get_from_path+0x64/0x300 kernel/cgroup/cgroup.c:6625 cgroup_mt_check_v1+0x18c/0x278 net/netfilter/xt_cgroup.c:56 xt_check_match+0x338/0x914 net/netfilter/x_tables.c:523 check_match net/ipv4/netfilter/ip_tables.c:472 [inline] find_check_match net/ipv4/netfilter/ip_tables.c:488 [inline] find_check_entry net/ipv4/netfilter/ip_tables.c:538 [inline] translate_table+0x10a0/0x1a98 net/ipv4/netfilter/ip_tables.c:717 do_replace net/ipv4/netfilter/ip_tables.c:1138 [inline] do_ipt_set_ctl+0xb8c/0x1164 net/ipv4/netfilter/ip_tables.c:1636 nf_setsockopt+0x270/0x290 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0x1d70/0x32cc net/ipv4/ip_sockglue.c:1442 udp_setsockopt+0xa4/0xbc net/ipv4/udp.c:2818 sock_common_setsockopt+0xb0/0xcc net/core/sock.c:3448 __sys_setsockopt+0x3a8/0x6b4 net/socket.c:2203 __do_sys_setsockopt net/socket.c:2214 [inline] __se_sys_setsockopt net/socket.c:2211 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 ============================= [ BUG: Invalid wait context ] 5.15.177-syzkaller #0 Tainted: G W ----------------------------- syz-executor382/4019 is trying to lock: ffff800014e682b0 (kernfs_rwsem){++++}-{3:3}, at: kernfs_walk_and_get_ns+0x8c/0x310 fs/kernfs/dir.c:908 other info that might help us debug this: context-{4:4} 1 lock held by syz-executor382/4019: #0: ffff800014d67718 (css_set_lock){....}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:388 [inline] #0: ffff800014d67718 (css_set_lock){....}-{2:2}, at: cgroup_get_from_path+0x30/0x300 kernel/cgroup/cgroup.c:6623 stack backtrace: CPU: 1 PID: 4019 Comm: syz-executor382 Tainted: G W 5.15.177-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_lock_invalid_wait_context kernel/locking/lockdep.c:4664 [inline] check_wait_context kernel/locking/lockdep.c:4725 [inline] __lock_acquire+0x1af0/0x7638 kernel/locking/lockdep.c:4962 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623 down_read+0xc0/0x398 kernel/locking/rwsem.c:1498 kernfs_walk_and_get_ns+0x8c/0x310 fs/kernfs/dir.c:908 kernfs_walk_and_get include/linux/kernfs.h:559 [inline] cgroup_get_from_path+0x64/0x300 kernel/cgroup/cgroup.c:6625 cgroup_mt_check_v1+0x18c/0x278 net/netfilter/xt_cgroup.c:56 xt_check_match+0x338/0x914 net/netfilter/x_tables.c:523 check_match net/ipv4/netfilter/ip_tables.c:472 [inline] find_check_match net/ipv4/netfilter/ip_tables.c:488 [inline] find_check_entry net/ipv4/netfilter/ip_tables.c:538 [inline] translate_table+0x10a0/0x1a98 net/ipv4/netfilter/ip_tables.c:717 do_replace net/ipv4/netfilter/ip_tables.c:1138 [inline] do_ipt_set_ctl+0xb8c/0x1164 net/ipv4/netfilter/ip_tables.c:1636 nf_setsockopt+0x270/0x290 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0x1d70/0x32cc net/ipv4/ip_sockglue.c:1442 udp_setsockopt+0xa4/0xbc net/ipv4/udp.c:2818 sock_common_setsockopt+0xb0/0xcc net/core/sock.c:3448 __sys_setsockopt+0x3a8/0x6b4 net/socket.c:2203 __do_sys_setsockopt net/socket.c:2214 [inline] __se_sys_setsockopt net/socket.c:2211 [inline] __arm64_sys_setsockopt+0xb8/0xd4 net/socket.c:2211 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 xt_cgroup: invalid path, errno=-2