kmem_cache_node           51KB         51KB
kmem_cache                82KB         82KB
oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/syz7,task=syz-executor.7,pid=29584,uid=0
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:577
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 122, name: systemd-udevd
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
3 locks held by systemd-udevd/122:
 #0: ffff88801596a2f0 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:832 [inline]
 #0: ffff88801596a2f0 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x151a/0x2130 mm/filemap.c:3137
 #1: ffffffff852791a8 (oom_lock){+.+.}-{3:3}, at: __alloc_pages_may_oom mm/page_alloc.c:4279 [inline]
 #1: ffffffff852791a8 (oom_lock){+.+.}-{3:3}, at: __alloc_pages_slowpath.constprop.0+0xcc9/0x1f10 mm/page_alloc.c:5061
 #2: ffff8880471358e0 (&p->alloc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
 #2: ffff8880471358e0 (&p->alloc_lock){+.+.}-{2:2}, at: task_lock include/linux/sched/task.h:179 [inline]
 #2: ffff8880471358e0 (&p->alloc_lock){+.+.}-{2:2}, at: find_lock_task_mm+0xe3/0x2b0 mm/oom_kill.c:144
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 122 Comm: systemd-udevd Not tainted 5.16.0-rc6-next-20211224 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106
 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9583
 __mutex_lock_common kernel/locking/mutex.c:577 [inline]
 __mutex_lock+0x9e/0x1480 kernel/locking/mutex.c:733
 futex_cleanup_begin kernel/futex/core.c:1058 [inline]
 futex_exit_release+0x2d/0x220 kernel/futex/core.c:1110
 __oom_kill_process+0x373/0xf90 mm/oom_kill.c:893
 oom_kill_process+0xd7/0x5c0 mm/oom_kill.c:1003
 out_of_memory+0x358/0x1460 mm/oom_kill.c:1132
 __alloc_pages_may_oom mm/page_alloc.c:4330 [inline]
 __alloc_pages_slowpath.constprop.0+0x1972/0x1f10 mm/page_alloc.c:5061
 __alloc_pages+0x403/0x4e0 mm/page_alloc.c:5392
 alloc_pages+0x1a0/0x2f0 mm/mempolicy.c:2271
 filemap_alloc_folio mm/filemap.c:1000 [inline]
 __filemap_get_folio+0x65c/0xfd0 mm/filemap.c:2003
 filemap_fault+0x155a/0x2130 mm/filemap.c:3140
 __do_fault+0x113/0x5a0 mm/memory.c:3846
 do_read_fault mm/memory.c:4161 [inline]
 do_fault mm/memory.c:4290 [inline]
 handle_pte_fault mm/memory.c:4548 [inline]
 __handle_mm_fault+0x1325/0x3570 mm/memory.c:4683
 handle_mm_fault+0x2e6/0xa20 mm/memory.c:4781
 do_user_addr_fault+0x54a/0x12a0 arch/x86/mm/fault.c:1397
 handle_page_fault arch/x86/mm/fault.c:1484 [inline]
 exc_page_fault+0xa2/0x1a0 arch/x86/mm/fault.c:1540
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7eff52888487
Code: Unable to access opcode bytes at RIP 0x7eff5288845d.
RSP: 002b:00007fff9fe5aca0 EFLAGS: 00010203
RAX: 00007eff528954b5 RBX: 00007eff5397cc18 RCX: 00007eff5396e268
RDX: 00007eff528d4840 RSI: 0000000000000000 RDI: 00454d414e564544
RBP: 00007fff9fe5aca0 R08: 3e44ed1e90244845 R09: 25371acb66b0f554
R10: b6869ad3f803e35d R11: 0000000000000000 R12: 00007eff5396e260
R13: 00007eff5396e240 R14: 00007eff539648f8 R15: 00007eff53965510
 </TASK>

=============================
[ BUG: Invalid wait context ]
5.16.0-rc6-next-20211224 #1 Tainted: G        W        
-----------------------------
systemd-udevd/122 is trying to lock:
ffff8880471362f0 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_cleanup_begin kernel/futex/core.c:1058 [inline]
ffff8880471362f0 (&tsk->futex_exit_mutex){+.+.}-{3:3}, at: futex_exit_release+0x2d/0x220 kernel/futex/core.c:1110
other info that might help us debug this:
context-{4:4}
3 locks held by systemd-udevd/122:
 #0: ffff88801596a2f0 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:832 [inline]
 #0: ffff88801596a2f0 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x151a/0x2130 mm/filemap.c:3137
 #1: ffffffff852791a8 (oom_lock){+.+.}-{3:3}, at: __alloc_pages_may_oom mm/page_alloc.c:4279 [inline]
 #1: ffffffff852791a8 (oom_lock){+.+.}-{3:3}, at: __alloc_pages_slowpath.constprop.0+0xcc9/0x1f10 mm/page_alloc.c:5061
 #2: ffff8880471358e0 (&p->alloc_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
 #2: ffff8880471358e0 (&p->alloc_lock){+.+.}-{2:2}, at: task_lock include/linux/sched/task.h:179 [inline]
 #2: ffff8880471358e0 (&p->alloc_lock){+.+.}-{2:2}, at: find_lock_task_mm+0xe3/0x2b0 mm/oom_kill.c:144
stack backtrace:
CPU: 1 PID: 122 Comm: systemd-udevd Tainted: G        W         5.16.0-rc6-next-20211224 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106
 print_lock_invalid_wait_context kernel/locking/lockdep.c:4678 [inline]
 check_wait_context kernel/locking/lockdep.c:4739 [inline]
 __lock_acquire.cold+0xc8/0x3b4 kernel/locking/lockdep.c:4977
 lock_acquire kernel/locking/lockdep.c:5639 [inline]
 lock_acquire+0x1a2/0x4d0 kernel/locking/lockdep.c:5604
 __mutex_lock_common kernel/locking/mutex.c:600 [inline]
 __mutex_lock+0x136/0x1480 kernel/locking/mutex.c:733
 futex_cleanup_begin kernel/futex/core.c:1058 [inline]
 futex_exit_release+0x2d/0x220 kernel/futex/core.c:1110
 __oom_kill_process+0x373/0xf90 mm/oom_kill.c:893
 oom_kill_process+0xd7/0x5c0 mm/oom_kill.c:1003
 out_of_memory+0x358/0x1460 mm/oom_kill.c:1132
 __alloc_pages_may_oom mm/page_alloc.c:4330 [inline]
 __alloc_pages_slowpath.constprop.0+0x1972/0x1f10 mm/page_alloc.c:5061
 __alloc_pages+0x403/0x4e0 mm/page_alloc.c:5392
 alloc_pages+0x1a0/0x2f0 mm/mempolicy.c:2271
 filemap_alloc_folio mm/filemap.c:1000 [inline]
 __filemap_get_folio+0x65c/0xfd0 mm/filemap.c:2003
 filemap_fault+0x155a/0x2130 mm/filemap.c:3140
 __do_fault+0x113/0x5a0 mm/memory.c:3846
 do_read_fault mm/memory.c:4161 [inline]
 do_fault mm/memory.c:4290 [inline]
 handle_pte_fault mm/memory.c:4548 [inline]
 __handle_mm_fault+0x1325/0x3570 mm/memory.c:4683
 handle_mm_fault+0x2e6/0xa20 mm/memory.c:4781
 do_user_addr_fault+0x54a/0x12a0 arch/x86/mm/fault.c:1397
 handle_page_fault arch/x86/mm/fault.c:1484 [inline]
 exc_page_fault+0xa2/0x1a0 arch/x86/mm/fault.c:1540
 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0033:0x7eff52888487
Code: Unable to access opcode bytes at RIP 0x7eff5288845d.
RSP: 002b:00007fff9fe5aca0 EFLAGS: 00010203
RAX: 00007eff528954b5 RBX: 00007eff5397cc18 RCX: 00007eff5396e268
RDX: 00007eff528d4840 RSI: 0000000000000000 RDI: 00454d414e564544
RBP: 00007fff9fe5aca0 R08: 3e44ed1e90244845 R09: 25371acb66b0f554
R10: b6869ad3f803e35d R11: 0000000000000000 R12: 00007eff5396e260
R13: 00007eff5396e240 R14: 00007eff539648f8 R15: 00007eff53965510
 </TASK>
Out of memory: Killed process 29584 (syz-executor.7) total-vm:93544kB, anon-rss:392kB, file-rss:34404kB, shmem-rss:0kB, UID:0 pgtables:136kB oom_score_adj:1000
oom_reaper: reaped process 29584 (syz-executor.7), now anon-rss:0kB, file-rss:33856kB, shmem-rss:0kB
syz-executor.7: vmalloc error: size 903790592, page order 0, failed to allocate pages, mode:0xdc0(GFP_KERNEL|__GFP_ZERO), nodemask=(null),cpuset=syz7,mems_allowed=0
CPU: 0 PID: 29592 Comm: syz-executor.7 Tainted: G        W         5.16.0-rc6-next-20211224 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106
 warn_alloc.cold+0x87/0x18d mm/page_alloc.c:4236
 __vmalloc_area_node mm/vmalloc.c:2978 [inline]
 __vmalloc_node_range+0xd50/0xfd0 mm/vmalloc.c:3106
 __vmalloc_node+0xb5/0x100 mm/vmalloc.c:3156
 alloc_one_pg_vec_page net/packet/af_packet.c:4301 [inline]
 alloc_pg_vec net/packet/af_packet.c:4326 [inline]
 packet_set_ring+0xb60/0x1b20 net/packet/af_packet.c:4411
 packet_setsockopt+0x1b4f/0x3c40 net/packet/af_packet.c:3788
 __sys_setsockopt+0x180/0x2a0 net/socket.c:2177
 __do_sys_setsockopt net/socket.c:2188 [inline]
 __se_sys_setsockopt net/socket.c:2185 [inline]
 __x64_sys_setsockopt+0xba/0x150 net/socket.c:2185
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2e8e8c5b19
Code: Unable to access opcode bytes at RIP 0x7f2e8e8c5aef.
RSP: 002b:00007f2e8be3b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f2e8e9d8f60 RCX: 00007f2e8e8c5b19
RDX: 000000000000000d RSI: 0000000000000107 RDI: 0000000000000003
RBP: 00007f2e8e91ff6d R08: 0000000000000010 R09: 0000000000000000
R10: 0000000020000100 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe20a98a7f R14: 00007f2e8be3b300 R15: 0000000000022000
 </TASK>
Mem-Info:
active_anon:7832 inactive_anon:37039 isolated_anon:0
 active_file:51 inactive_file:60 isolated_file:0
 unevictable:6 dirty:0 writeback:0
 slab_reclaimable:7481 slab_unreclaimable:63559
 mapped:69721 shmem:122 pagetables:2289 bounce:0
 kernel_misc_reclaimable:0
 free:2772 free_pcp:214 free_cma:0
Node 0 active_anon:31328kB inactive_anon:148156kB active_file:204kB inactive_file:240kB unevictable:24kB isolated(anon):0kB isolated(file):0kB mapped:278884kB dirty:0kB writeback:0kB shmem:488kB writeback_tmp:0kB kernel_stack:5248kB pagetables:9156kB all_unreclaimable? no
Node 0 DMA free:6512kB boost:0kB min:44kB low:56kB high:68kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 1617 1617 1617
Node 0 DMA32 free:4576kB boost:0kB min:5120kB low:6776kB high:8432kB reserved_highatomic:0KB active_anon:31328kB inactive_anon:148240kB active_file:544kB inactive_file:580kB unevictable:24kB writepending:0kB present:2080640kB managed:1660836kB mlocked:0kB bounce:0kB free_pcp:864kB local_pcp:528kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 1*32kB (U) 1*64kB (U) 0*128kB 1*256kB (U) 0*512kB 0*1024kB 1*2048kB (M) 1*4096kB (M) = 6512kB
Node 0 DMA32: 571*4kB (UME) 159*8kB (ME) 48*16kB (UME) 21*32kB (UM) 1*64kB (U) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 5060kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
217 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
524158 pages RAM
0 pages HighMem/MovableOnly
105109 pages reserved