Memory cgroup out of memory: Killed process 8975 (syz-executor.0) total-vm:93420kB, anon-rss:300kB, file-rss:35512kB, shmem-rss:0kB, UID:0 pgtables:132kB oom_score_adj:1000 ===================================== WARNING: bad unlock balance detected! 6.17.0-rc1-next-20250815 #1 Not tainted ------------------------------------- syz-executor.0/8975 is trying to release lock (&sighand->siglock) at: [] copy_process+0x5f89/0x73e0 but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor.0/8975: #0: ffffffff85c5c510 (cgroup_threadgroup_rwsem){++++}-{0:0}, at: copy_process+0x418a/0x73e0 stack backtrace: CPU: 0 UID: 0 PID: 8975 Comm: syz-executor.0 Not tainted 6.17.0-rc1-next-20250815 #1 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xca/0x120 print_unlock_imbalance_bug+0x118/0x130 lock_release+0x208/0x290 _raw_spin_unlock+0x16/0x40 copy_process+0x5f89/0x73e0 kernel_clone+0xea/0x7f0 __do_sys_clone+0xce/0x120 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff98bb48f41 Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00 RSP: 002b:00007ffc54e38fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ff9890bd700 RCX: 00007ff98bb48f41 RDX: 00007ff9890bd9d0 RSI: 00007ff9890bd2f0 RDI: 00000000003d0f00 RBP: 00007ffc54e39220 R08: 00007ff9890bd700 R09: 00007ff9890bd700 R10: 00007ff9890bd9d0 R11: 0000000000000206 R12: 00007ffc54e3909e R13: 00007ffc54e3909f R14: 00007ff9890bd300 R15: 0000000000022000 BUG: sleeping function called from invalid context at kernel/nsproxy.c:233 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 8975, name: syz-executor.0 preempt_count: 7ffffffe, expected: 0 RCU nest depth: 0, expected: 0 INFO: lockdep is turned off. CPU: 0 UID: 0 PID: 8975 Comm: syz-executor.0 Not tainted 6.17.0-rc1-next-20250815 #1 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 __might_resched+0x2f3/0x510 switch_task_namespaces+0x2d/0x100 copy_process+0x2756/0x73e0 kernel_clone+0xea/0x7f0 __do_sys_clone+0xce/0x120 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff98bb48f41 Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00 RSP: 002b:00007ffc54e38fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ff9890bd700 RCX: 00007ff98bb48f41 RDX: 00007ff9890bd9d0 RSI: 00007ff9890bd2f0 RDI: 00000000003d0f00 RBP: 00007ffc54e39220 R08: 00007ff9890bd700 R09: 00007ff9890bd700 R10: 00007ff9890bd9d0 R11: 0000000000000206 R12: 00007ffc54e3909e R13: 00007ffc54e3909f R14: 00007ff9890bd300 R15: 0000000000022000 BUG: scheduling while atomic: syz-executor.0/8975/0x7fffffff INFO: lockdep is turned off. Modules linked in: CPU: 0 UID: 0 PID: 8975 Comm: syz-executor.0 Tainted: G W 6.17.0-rc1-next-20250815 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 __schedule_bug+0xb9/0x100 __schedule+0x24f3/0x3590 schedule+0xdb/0x390 exit_to_user_mode_loop+0x69/0x100 do_syscall_64+0x2f7/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff98bb48f41 Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00 RSP: 002b:00007ffc54e38fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: fffffffffffffff4 RBX: 00007ff9890bd700 RCX: 00007ff98bb48f41 RDX: 00007ff9890bd9d0 RSI: 00007ff9890bd2f0 RDI: 00000000003d0f00 RBP: 00007ffc54e39220 R08: 00007ff9890bd700 R09: 00007ff9890bd700 R10: 00007ff9890bd9d0 R11: 0000000000000206 R12: 00007ffc54e3909e R13: 00007ffc54e3909f R14: 00007ff9890bd300 R15: 0000000000022000 audit: type=1326 audit(1755410217.581:185): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8956 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f88c12e7b19 code=0x0 audit: type=1326 audit(1755410225.933:186): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8992 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f88c12e7b19 code=0x0 syz-executor.0 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000 CPU: 0 UID: 0 PID: 8994 Comm: syz-executor.0 Tainted: G W 6.17.0-rc1-next-20250815 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 dump_header+0x107/0x950 oom_kill_process+0x278/0xa00 out_of_memory+0x34b/0x1690 mem_cgroup_out_of_memory+0x164/0x190 try_charge_memcg+0x81f/0xf30 charge_memcg+0x7b/0x290 __mem_cgroup_charge+0x28/0x90 do_wp_page+0x58c/0x3240 __handle_mm_fault+0xde1/0x3030 handle_mm_fault+0x2c3/0x900 do_user_addr_fault+0x4fa/0xeb0 exc_page_fault+0xb0/0x180 asm_exc_page_fault+0x26/0x30 RIP: 0033:0x7ff98baf5d30 Code: 75 c8 48 89 d8 eb 0c 0f 1f 00 48 8b 78 f8 48 3b 38 74 21 48 89 c2 48 83 c0 08 49 39 c4 75 eb e9 ff fe ff ff 66 0f 1f 44 00 00 <47> 89 44 95 00 e9 b3 fe ff ff 49 39 d4 74 73 48 8d 72 10 4c 39 e6 RSP: 002b:00007ffc54e39030 EFLAGS: 00010246 RAX: 00000000349f186e RBX: 00007ff98b8bf008 RCX: 0000001b2cf20000 RDX: 0000001b2cf20040 RSI: ffffffff81b3ad10 RDI: 0000000000000000 RBP: 0000000000000001 R08: 00000000349f186e R09: 0000001b2cf2001c R10: 000000000000186e R11: 00000000349f1872 R12: 0000000000000008 R13: 00007ff98bc4f000 R14: ffffffff81b3ad10 R15: 00007ff98bc5aff0 memory: usage 307200kB, limit 307200kB, failcnt 3295 swap: usage 0kB, limit 9007199254740988kB, failcnt 0 Memory cgroup stats for /syz0: anon 131072 file 312950784 kernel 1490944 kernel_stack 65536 pagetables 147456 sec_pagetables 0 percpu 64 sock 0 vmalloc 0 shmem 312950784 file_mapped 0 file_dirty 0 file_writeback 0 swapcached 0 inactive_anon 306520064 active_anon 6545408 inactive_file 0 active_file 0 unevictable 0 slab_reclaimable 947448 slab_unreclaimable 344256 slab 1291704 workingset_refault_anon 0 workingset_refault_file 1 workingset_activate_anon 0 workingset_activate_file 0 workingset_restore_anon 0 workingset_restore_file 0 workingset_nodereclaim 0 pgdemote_kswapd 0 pgdemote_direct 0 pgdemote_khugepaged 0 pgdemote_proactive 0 pgscan 801 pgsteal 9 pswpin 0 pswpout 0 pgscan_kswapd 0 pgscan_direct 801 pgscan_khugepaged 0 pgscan_proactive 0 pgsteal_kswapd 0 pgsteal_direct 9 pgsteal_khugepaged 0 pgsteal_proactive 0 pgfault 88813 pgmajfault 0 pgrefill 768 pgactivate 3833 pgdeactivate 768 pglazyfree 0 pglazyfreed 0 swpin_zero 0 swpout_zero 0 oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=/,mems_allowed=0,oom_memcg=/syz0,task_memcg=/syz0,task=syz-executor.0,pid=8994,uid=0 Memory cgroup out of memory: Killed process 8994 (syz-executor.0) total-vm:93420kB, anon-rss:300kB, file-rss:35512kB, shmem-rss:0kB, UID:0 pgtables:128kB oom_score_adj:1000 syz-executor.0 invoked oom-killer: gfp_mask=0xcc0(GFP_KERNEL), order=0, oom_score_adj=1000 CPU: 0 UID: 0 PID: 9028 Comm: syz-executor.0 Tainted: G W 6.17.0-rc1-next-20250815 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 dump_header+0x107/0x950 oom_kill_process+0x278/0xa00 out_of_memory+0x34b/0x1690 mem_cgroup_out_of_memory+0x164/0x190 try_charge_memcg+0x81f/0xf30 obj_cgroup_charge_account+0xa8/0x6e0 __memcg_slab_post_alloc_hook+0x33c/0x9d0 kmem_cache_alloc_lru_noprof+0x328/0x3c0 alloc_inode+0x181/0x250 path_from_stashed+0x1b2/0x660 ns_get_path+0x60/0x90 proc_ns_get_link+0x10e/0x210 step_into+0x186b/0x2030 path_openat+0x4a3/0x2880 do_filp_open+0x1e8/0x450 do_sys_openat2+0x104/0x1b0 __x64_sys_openat+0x142/0x200 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff98bafaa04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007ff9890bd0b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ff98bc5af60 RCX: 00007ff98bafaa04 RDX: 0000000000000000 RSI: 00007ff98bba0f82 RDI: 00000000ffffff9c RBP: 00007ff98bba0f82 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007ffc54e3909f R14: 00007ff9890bd300 R15: 0000000000022000 memory: usage 307200kB, limit 307200kB, failcnt 3317 swap: usage 0kB, limit 9007199254740988kB, failcnt 0 Memory cgroup stats for /syz0: anon 106496 file 312950784 kernel 1515520 kernel_stack 65536 pagetables 151552 sec_pagetables 0 percpu 128 sock 0 vmalloc 0 shmem 312950784 file_mapped 0 file_dirty 0 file_writeback 0 swapcached 0 inactive_anon 306475008 active_anon 6545408 inactive_file 0 active_file 0 unevictable 0 slab_reclaimable 950768 slab_unreclaimable 364352 slab 1315120 workingset_refault_anon 0 workingset_refault_file 1 workingset_activate_anon 0 workingset_activate_file 0 workingset_restore_anon 0 workingset_restore_file 0 workingset_nodereclaim 0 pgdemote_kswapd 0 pgdemote_direct 0 pgdemote_khugepaged 0 pgdemote_proactive 0 pgscan 801 pgsteal 9 pswpin 0 pswpout 0 pgscan_kswapd 0 pgscan_direct 801 pgscan_khugepaged 0 pgscan_proactive 0 pgsteal_kswapd 0 pgsteal_direct 9 pgsteal_khugepaged 0 pgsteal_proactive 0 pgfault 88851 pgmajfault 0 pgrefill 768 pgactivate 3833 pgdeactivate 768 pglazyfree 0 pglazyfreed 0 swpin_zero 0 swpout_zero 0 oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=/,mems_allowed=0,oom_memcg=/syz0,task_memcg=/syz0,task=syz-executor.0,pid=9023,uid=0 Memory cgroup out of memory: Killed process 9023 (syz-executor.0) total-vm:93420kB, anon-rss:300kB, file-rss:35512kB, shmem-rss:0kB, UID:0 pgtables:128kB oom_score_adj:1000 audit: type=1326 audit(1755410226.760:187): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=8992 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f88c12e7b19 code=0x0