196KB 232KB [ 235.626062][ T3994] Acpi-Namespace 28KB 28KB [ 235.632203][ T3994] numa_policy 3KB 3KB [ 235.715974][ T3994] perf_event 31KB 31KB [ 235.722188][ T3994] trace_event_file 432KB 432KB [ 235.782147][ T3994] ftrace_event_field 548KB 548KB [ 235.816784][ T3994] pool_workqueue 261KB 288KB [ 235.822919][ T3994] task_group 30KB 30KB [ 235.880067][ T3994] mm_struct 427KB 661KB [ 235.908885][ T3994] vmap_area 234KB 322KB [ 235.915232][ T3994] debug_objects_cache 1667KB 1720KB [ 235.956930][ T3994] page->ptl 124KB 224KB [ 235.963104][ T3994] kmalloc-cg-8k 2128KB 2128KB [ 236.004264][ T3994] kmalloc-cg-4k 4912KB 5320KB [ 236.107657][ T3994] kmalloc-cg-2k 1260KB 1284KB [ 236.113810][ T3994] kmalloc-cg-1k 868KB 1024KB [ 236.161748][ T3994] kmalloc-cg-512 2098KB 2148KB [ 236.170354][ T3994] kmalloc-cg-256 40KB 40KB [ 236.194818][ T3994] kmalloc-cg-192 164KB 164KB [ 236.209016][ T3994] kmalloc-cg-128 104KB 104KB [ 236.215167][ T3994] kmalloc-cg-96 20KB 20KB [ 236.237522][ T3994] kmalloc-cg-64 16KB 16KB [ 236.243764][ T3994] kmalloc-cg-32 20KB 20KB [ 236.261195][ T3994] kmalloc-cg-16 79KB 188KB [ 236.283677][ T3994] kmalloc-cg-8 31KB 31KB [ 236.321450][ T3994] kmalloc-8k 9488KB 9584KB [ 236.356162][ T3994] kmalloc-4k 206352KB 206432KB [ 236.363459][ T3994] kmalloc-2k 24960KB 28384KB [ 236.411316][ T3994] kmalloc-1k 34754KB 34832KB [ 236.433376][ T3994] kmalloc-512 31051KB 31064KB [ 236.459125][ T3994] kmalloc-256 4889KB 4944KB [ 236.481412][ T3994] kmalloc-192 1126KB 1572KB [ 236.516000][ T3994] kmalloc-128 1644KB 2012KB [ 236.522336][ T3994] kmalloc-96 1247KB 1252KB [ 236.597067][ T3994] kmalloc-64 3105KB 3964KB [ 236.603481][ T3994] kmalloc-32 689KB 792KB [ 236.626200][ T23] slab_out_of_memory: 4071 callbacks suppressed [ 236.626218][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 236.627675][ T4743] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 236.632672][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 236.640801][ T4743] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 236.648999][ T23] node 0: slabs: 4116, objs: 49392, free: 0 [ 236.649026][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 236.649073][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 236.649093][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 236.659739][ T4743] node 0: slabs: 4116, objs: 49392, free: 0 [ 236.671132][ T23] node 0: slabs: 4118, objs: 49416, free: 0 [ 236.671162][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 236.677607][ T4743] node 1: slabs: 810, objs: 9720, free: 34 [ 236.683956][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 236.692049][ T4743] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 236.702544][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 236.708678][ T4743] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 236.714752][ T23] node 0: slabs: 4118, objs: 49416, free: 0 [ 236.720781][ T4743] node 0: slabs: 4118, objs: 49416, free: 0 [ 236.726820][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 236.734796][ T4743] node 1: slabs: 810, objs: 9720, free: 34 [ 236.742886][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 236.753464][ T4743] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 236.764214][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 236.770308][ T4743] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 236.776677][ T23] node 0: slabs: 4118, objs: 49416, free: 0 [ 236.782671][ T4743] node 0: slabs: 4118, objs: 49416, free: 0 [ 236.788686][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 236.796902][ T4743] node 1: slabs: 810, objs: 9720, free: 34 [ 236.807376][ T144] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 236.815806][ T4743] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 236.826380][ T144] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 236.832286][ T4743] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 236.838423][ T144] node 0: slabs: 848, objs: 13568, free: 0 [ 236.844389][ T4743] node 0: slabs: 4119, objs: 49428, free: 0 [ 236.850530][ T144] node 1: slabs: 370, objs: 3848, free: 39 [ 236.859843][ T4743] node 1: slabs: 810, objs: 9720, free: 34 [ 236.861974][ T5212] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 236.923535][ T5212] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 236.934026][ T5212] node 0: slabs: 848, objs: 13568, free: 0 [ 236.940299][ T5212] node 1: slabs: 370, objs: 3848, free: 39 [ 236.946474][ T3994] kmalloc-16 261KB 340KB [ 236.946527][ T3994] kmalloc-8 549KB 593KB [ 236.946543][ T3994] kmem_cache_node 207KB 208KB [ 236.946559][ T3994] kmem_cache 172KB 172KB [ 237.045986][ T3994] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/,task=dhcpcd,pid=3994,uid=101 [ 237.099965][ T3994] Out of memory (oom_kill_allocating_task): Killed process 3994 (dhcpcd) total-vm:3052kB, anon-rss:0kB, file-rss:0kB, shmem-rss:0kB, UID:101 pgtables:44kB oom_score_adj:0 [ 237.667008][ T3550] klogd invoked oom-killer: gfp_mask=0x1100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0 [ 237.677828][ T3550] CPU: 0 PID: 3550 Comm: klogd Not tainted syzkaller #0 [ 237.685475][ T3550] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 237.695751][ T3550] Call Trace: [ 237.699168][ T3550] [ 237.702292][ T3550] dump_stack_lvl+0x188/0x250 [ 237.707382][ T3550] ? show_regs_print_info+0x20/0x20 [ 237.712714][ T3550] ? load_image+0x400/0x400 [ 237.717636][ T3550] ? local_lock_release+0x170/0x170 [ 237.722875][ T3550] ? __rwlock_init+0x140/0x140 [ 237.727781][ T3550] dump_header+0xd4/0x770 [ 237.732218][ T3550] oom_kill_process+0x20e/0x3d0 [ 237.737205][ T3550] out_of_memory+0xedc/0x1180 [ 237.741941][ T3550] ? __alloc_pages+0x480/0x480 [ 237.746839][ T3550] ? unreserve_highatomic_pageblock+0x363/0x4d0 [ 237.753729][ T3550] ? unregister_oom_notifier+0x20/0x20 [ 237.759254][ T3550] __alloc_pages_slowpath+0x1dc5/0x28b0 [ 237.764895][ T3550] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 237.770759][ T3550] ? prepare_alloc_pages+0x368/0x5f0 [ 237.776431][ T3550] __alloc_pages+0x340/0x480 [ 237.781197][ T3550] ? zone_statistics+0x170/0x170 [ 237.786187][ T3550] ? __lock_acquire+0x7d10/0x7d10 [ 237.791259][ T3550] ? __rwlock_init+0x140/0x140 [ 237.796305][ T3550] alloc_pages_vma+0x393/0x7c0 [ 237.801625][ T3550] ? __swp_swapcount+0xf5/0x120 [ 237.806729][ T3550] __read_swap_cache_async+0x1b5/0xa70 [ 237.812330][ T3550] swap_cluster_readahead+0x6a3/0x7c0 [ 237.817854][ T3550] ? read_swap_cache_async+0x90/0x90 [ 237.823204][ T3550] swapin_readahead+0xf1/0xac0 [ 237.828146][ T3550] ? rcu_lock_release+0x5/0x20 [ 237.833317][ T3550] ? __lock_acquire+0x7d10/0x7d10 [ 237.838649][ T3550] ? exit_swap_address_space+0x280/0x280 [ 237.848068][ T3550] ? put_swap_device+0x15c/0x200 [ 237.853147][ T3550] ? lookup_swap_cache+0x135/0x440 [ 237.858483][ T3550] ? get_swap_device+0x21b/0x360 [ 237.863495][ T3550] do_swap_page+0x4b6/0x1f40 [ 237.868317][ T3550] ? count_memcg_event_mm+0x324/0x370 [ 237.874138][ T3550] ? __lock_acquire+0x13bc/0x7d10 [ 237.879337][ T3550] handle_mm_fault+0x1b16/0x4410 [ 237.884332][ T3550] ? get_page+0xe0/0xe0 [ 237.888542][ T3550] ? vmacache_find+0x53c/0x590 [ 237.893525][ T3550] ? vmacache_update+0xa0/0x100 [ 237.898694][ T3550] ? find_vma+0x1df/0x230 [ 237.903251][ T3550] do_user_addr_fault+0x489/0xc80 [ 237.908646][ T3550] exc_page_fault+0x60/0x100 [ 237.913287][ T3550] asm_exc_page_fault+0x22/0x30 [ 237.918271][ T3550] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x40 [ 237.924947][ T3550] Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 90 90 90 90 90 90 90 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 01 ca c3 90 90 90 90 90 90 90 90 90 90 89 d1 83 f8 [ 237.944697][ T3550] RSP: 0000:ffffc90002d6fae0 EFLAGS: 00050202 [ 237.951483][ T3550] RAX: ffffffff83e40901 RBX: 0000000000000078 RCX: 0000000000000078 [ 237.959496][ T3550] RDX: 0000000000000078 RSI: ffff8880679e2800 RDI: 00007f71b1aaf490 [ 237.967599][ T3550] RBP: 0000000000000000 R08: ffff8880679e2877 R09: 1ffff1100cf3c50e [ 237.975811][ T3550] R10: dffffc0000000000 R11: ffffed100cf3c50f R12: 00007ffffffff000 [ 237.983999][ T3550] R13: 00007f71b1aaf508 R14: ffff8880679e2800 R15: 00007f71b1aaf490 [ 237.992370][ T3550] ? _copy_to_user+0x61/0x130 [ 237.997103][ T3550] _copy_to_user+0xf0/0x130 [ 238.001741][ T3550] syslog_print+0x743/0x8f0 [ 238.006295][ T3550] ? do_syslog+0x930/0x930 [ 238.010784][ T3550] ? init_wait_entry+0xd0/0xd0 [ 238.015602][ T3550] ? bpf_lsm_capable+0x5/0x10 [ 238.020601][ T3550] ? security_capable+0x85/0xb0 [ 238.025594][ T3550] do_syslog+0x83f/0x930 [ 238.029908][ T3550] ? log_buf_vmcoreinfo_setup+0x450/0x450 [ 238.036407][ T3550] ? __lock_acquire+0x7d10/0x7d10 [ 238.041861][ T3550] ? lock_chain_count+0x20/0x20 [ 238.047045][ T3550] ? vtime_user_exit+0x2c8/0x3e0 [ 238.052134][ T3550] __x64_sys_syslog+0x78/0x90 [ 238.057209][ T3550] do_syscall_64+0x4c/0xa0 [ 238.061673][ T3550] ? clear_bhb_loop+0x30/0x80 [ 238.066393][ T3550] ? clear_bhb_loop+0x30/0x80 [ 238.071543][ T3550] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 238.078145][ T3550] RIP: 0033:0x7f71b190fa37 [ 238.083619][ T3550] Code: Unable to access opcode bytes at RIP 0x7f71b190fa0d. [ 238.091470][ T3550] RSP: 002b:00007ffd8acbd758 EFLAGS: 00000206 ORIG_RAX: 0000000000000067 [ 238.100597][ T3550] RAX: ffffffffffffffda RBX: 00007f71b1aaf490 RCX: 00007f71b190fa37 [ 238.108712][ T3550] RDX: 00000000000003ff RSI: 00007f71b1aaf490 RDI: 0000000000000002 [ 238.117288][ T3550] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 238.125298][ T3550] R10: 0000000000004000 R11: 0000000000000206 R12: 00007f71b1aaf490 [ 238.133371][ T3550] R13: 00007f71b1a8cdfe R14: 00007f71b1aaf508 R15: 00007f71b1aaf508 [ 238.141397][ T3550] [ 239.219141][ T28] oom_reaper: reaped process 3994 (dhcpcd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 239.569300][ T3550] Mem-Info: [ 239.572610][ T3550] active_anon:0 inactive_anon:1 isolated_anon:0 [ 239.572610][ T3550] active_file:95 inactive_file:32 isolated_file:25 [ 239.572610][ T3550] unevictable:768 dirty:0 writeback:0 [ 239.572610][ T3550] slab_reclaimable:16047 slab_unreclaimable:114742 [ 239.572610][ T3550] mapped:1 shmem:768 pagetables:319 bounce:0 [ 239.572610][ T3550] kernel_misc_reclaimable:0 [ 239.572610][ T3550] free:9147 free_pcp:0 free_cma:0 [ 239.614243][ T3550] Node 0 active_anon:0kB inactive_anon:4kB active_file:248kB inactive_file:120kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11188kB pagetables:1236kB all_unreclaimable? no [ 239.647110][ T3550] Node 1 active_anon:0kB inactive_anon:0kB active_file:132kB inactive_file:8kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:144kB pagetables:40kB all_unreclaimable? yes [ 239.826801][ T3550] Node 0 DMA free:10240kB min:204kB low:252kB high:300kB 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 [ 239.857742][ T3550] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 239.863584][ T3550] Node 0 DMA32 free:5360kB min:34784kB low:43480kB high:52176kB reserved_highatomic:26624KB active_anon:0kB inactive_anon:4kB active_file:144kB inactive_file:64kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:936kB local_pcp:468kB free_cma:0kB [ 239.892359][ T3550] lowmem_reserve[]: 0 0 0 0 0 [ 239.898573][ T3550] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 239.924556][ T3550] lowmem_reserve[]: 0 0 0 0 0 [ 239.929369][ T3550] Node 1 Normal free:20604kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:68kB inactive_file:60kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 239.959280][ T3550] lowmem_reserve[]: 0 0 0 0 0 [ 239.964078][ T3550] Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10240kB [ 240.037782][ T3550] Node 0 DMA32: 218*4kB (UME) 160*8kB (UME) 69*16kB (UME) 41*32kB (UME) 10*64kB (ME) 7*128kB (UM) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 6104kB [ 240.065166][ T3550] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 240.085971][ T3550] Node 1 Normal: 5*4kB (UME) 19*8kB (UME) 21*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20604kB [ 240.128111][ T3550] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 240.146074][ T3550] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 240.168425][ T3550] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 240.190055][ T3550] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 240.205331][ T3550] 868 total pagecache pages [ 240.214604][ T3550] 1 pages in swap cache [ 240.224505][ T3550] Swap cache stats: add 41420, delete 41419, find 241/936 [ 240.263879][ T3550] Free swap = 104980kB [ 240.269670][ T3550] Total swap = 124996kB [ 240.274013][ T3550] 2097051 pages RAM [ 240.285972][ T3550] 0 pages HighMem/MovableOnly [ 240.290793][ T3550] 411492 pages reserved [ 240.295217][ T3550] 0 pages cma reserved [ 240.310271][ T3550] Unreclaimable slab info: [ 240.314780][ T3550] Name Used Total [ 240.327101][ T3550] pid_2 18KB 18KB [ 240.333548][ T3550] bio-320 7KB 7KB [ 240.340646][ T146] Bluetooth: hci4: no memory for command (opcode 0x0406) [ 240.348737][ T146] Bluetooth: hci4: failed to run HCI request: err -12 [ 240.356511][ T4222] Bluetooth: hci0: no memory for command (opcode 0x0406) [ 240.356685][ T4805] Bluetooth: hci3: no memory for command (opcode 0x0406) [ 240.364413][ T4222] Bluetooth: hci0: failed to run HCI request: err -12 [ 240.374757][ T146] Bluetooth: hci2: no memory for command (opcode 0x0406) [ 240.380864][ T4810] Bluetooth: hci1: no memory for command (opcode 0x0406) [ 240.389024][ T4805] Bluetooth: hci3: failed to run HCI request: err -12 [ 240.405488][ T146] Bluetooth: hci2: failed to run HCI request: err -12 [ 240.416528][ T4810] Bluetooth: hci1: failed to run HCI request: err -12 [ 240.448856][ T3550] zswap_entry 3391KB 3391KB [ 240.455140][ T3550] batadv_tt_change_cache 8KB 8KB [ 240.595981][ T3550] batadv_tl_cache 8KB 8KB [ 240.602578][ T3550] TIPC 63KB 63KB [ 240.659991][ T3550] SCTPv6 63KB 63KB [ 240.703677][ T3550] DCCPv6 59KB 59KB [ 240.731099][ T3550] DCCP 61KB 61KB [ 240.779733][ T3550] RXRPC 61KB 61KB [ 240.785879][ T3550] rxrpc_call_jar 236KB 252KB [ 240.853040][ T3550] bridge_fdb_cache 19KB 19KB [ 240.868476][ T3550] MPTCPv6 61KB 61KB [ 240.874623][ T3550] fib6_nodes 192KB 192KB [ 240.957950][ T3550] ip6_dst_cache 256KB 528KB [ 240.964188][ T3550] RAWv6 146KB 246KB [ 241.048619][ T3550] UDPv6 128KB 128KB [ 241.054758][ T3550] tw_sock_TCPv6 7KB 7KB [ 241.114440][ T3550] TCPv6 95KB 95KB [ 241.139816][ T3550] nf_conntrack 39KB 39KB [ 241.184496][ T3550] wg_peer 152KB 152KB [ 241.215628][ T3550] allowedips_node 19KB 19KB [ 241.246383][ T3550] t10_alua_lu_gp_cache 3KB 3KB [ 241.253315][ T3550] sd_ext_cdb 3KB 3KB [ 241.307599][ T3550] scsi_sense_cache 1348KB 1348KB [ 241.313730][ T3550] virtio_scsi_cmd 16KB 16KB [ 241.347397][ T3550] bio-136 88KB 88KB [ 241.353801][ T3550] sgpool-128 29KB 29KB [ 241.405912][ T3550] sgpool-64 63KB 63KB [ 241.412083][ T3550] sgpool-32 294KB 378KB [ 241.466114][ T23] warn_alloc: 7635 callbacks suppressed [ 241.466134][ T23] kworker/1:1: page allocation failure: order:0, mode:0xa20(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0-1 [ 241.485323][ T23] CPU: 1 PID: 23 Comm: kworker/1:1 Not tainted syzkaller #0 [ 241.492754][ T23] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 241.502886][ T23] Workqueue: events nsim_dev_trap_report_work [ 241.509423][ T23] Call Trace: [ 241.512741][ T23] [ 241.515704][ T23] dump_stack_lvl+0x188/0x250 [ 241.520423][ T23] ? rcu_lock_release+0x5/0x20 [ 241.525248][ T23] ? show_regs_print_info+0x20/0x20 [ 241.530568][ T23] ? load_image+0x400/0x400 [ 241.535122][ T23] warn_alloc+0x243/0x320 [ 241.539498][ T23] ? seqcount_lockdep_reader_access+0xce/0x190 [ 241.545702][ T23] ? zone_watermark_ok_safe+0x240/0x240 [ 241.551386][ T23] ? __cpuset_node_allowed+0x99/0x540 [ 241.556800][ T23] ? wakeup_kswapd+0x46b/0x7a0 [ 241.561860][ T23] __alloc_pages_slowpath+0x2844/0x28b0 [ 241.567492][ T23] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 241.568232][ T3550] sgpool-16 135KB 135KB [ 241.573434][ T23] ? __alloc_pages+0x480/0x480 [ 241.584352][ T23] ? prepare_alloc_pages+0x368/0x5f0 [ 241.589715][ T23] __alloc_pages+0x340/0x480 [ 241.594437][ T23] ? zone_statistics+0x170/0x170 [ 241.599419][ T23] ? alloc_pages+0x438/0x550 [ 241.604057][ T23] new_slab+0x2e6/0x4b0 [ 241.608247][ T23] ___slab_alloc+0x80a/0xdd0 [ 241.612870][ T23] ? __alloc_skb+0xf4/0x750 [ 241.617416][ T23] kmem_cache_alloc_node+0x1c3/0x2d0 [ 241.622728][ T23] ? __alloc_skb+0xf4/0x750 [ 241.626092][ T3550] sgpool-8 93KB 93KB [ 241.627267][ T23] __alloc_skb+0xf4/0x750 [ 241.633455][ T3550] bio-224 3KB 3KB [ 241.637772][ T23] nsim_dev_trap_report_work+0x2a1/0xb40 [ 241.637807][ T23] ? read_lock_is_recursive+0x10/0x10 [ 241.637839][ T23] ? _raw_spin_unlock_irq+0x1f/0x40 [ 241.637865][ T23] process_one_work+0x85f/0x1010 [ 241.637904][ T23] ? worker_detach_from_pool+0x240/0x240 [ 241.637926][ T23] ? lockdep_hardirqs_off+0x70/0x100 [ 241.637955][ T23] ? _raw_spin_lock_irq+0xb7/0xf0 [ 241.681857][ T23] ? _raw_spin_lock_irqsave+0x100/0x100 [ 241.686815][ T4327] slab_out_of_memory: 3519 callbacks suppressed [ 241.686863][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 241.687633][ T23] ? wq_worker_running+0x97/0x170 [ 241.693887][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 241.701876][ T23] worker_thread+0xaa6/0x1290 [ 241.701917][ T23] ? lockdep_hardirqs_on+0x94/0x140 [ 241.707211][ T4327] node 0: slabs: 4220, objs: 50640, free: 0 [ 241.718378][ T23] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 241.718438][ T23] kthread+0x436/0x520 [ 241.723097][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 241.728422][ T23] ? rcu_lock_release+0x20/0x20 [ 241.728449][ T23] ? kthread_blkcg+0xd0/0xd0 [ 241.734599][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 241.740696][ T23] ret_from_fork+0x1f/0x30 [ 241.740736][ T23] [ 241.741319][ T23] Mem-Info: [ 241.744819][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 241.750880][ T23] active_anon:0 inactive_anon:1 isolated_anon:0 [ 241.750880][ T23] active_file:26 inactive_file:44 isolated_file:7 [ 241.750880][ T23] unevictable:768 dirty:0 writeback:0 [ 241.750880][ T23] slab_reclaimable:16047 slab_unreclaimable:114906 [ 241.750880][ T23] mapped:1 shmem:768 pagetables:310 bounce:0 [ 241.750880][ T23] kernel_misc_reclaimable:0 [ 241.750880][ T23] free:8925 free_pcp:245 free_cma:0 [ 241.756028][ T4327] node 0: slabs: 4220, objs: 50640, free: 0 [ 241.760641][ T23] Node 0 active_anon:0kB inactive_anon:4kB active_file:104kB inactive_file:56kB unevictable:1536kB isolated(anon):0kB isolated(file):28kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11184kB pagetables:1200kB all_unreclaimable? no [ 241.768745][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 241.773172][ T23] Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:120kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:144kB pagetables:40kB all_unreclaimable? yes [ 241.776386][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 241.779449][ T23] Node 0 [ 241.790106][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 241.831705][ T23] DMA free:10240kB min:204kB low:252kB high:300kB 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 [ 241.837832][ T4327] node 0: slabs: 4220, objs: 50640, free: 0 [ 241.868021][ T23] lowmem_reserve[]: 0 [ 241.874019][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 241.903532][ T23] 2539 [ 241.911908][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 241.914807][ T23] 2540 [ 241.925338][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 241.951433][ T23] 2540 [ 241.957652][ T4327] node 0: slabs: 4220, objs: 50640, free: 0 [ 241.961642][ T23] 2540 [ 241.967659][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 241.970434][ T23] [ 241.970445][ T23] Node 0 [ 241.979356][ T1435] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 241.982306][ T23] DMA32 free:4856kB min:34784kB low:43480kB high:52176kB reserved_highatomic:26624KB active_anon:0kB inactive_anon:4kB active_file:0kB inactive_file:356kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:980kB local_pcp:472kB free_cma:0kB [ 241.992863][ T1435] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 241.995645][ T23] lowmem_reserve[]: 0 [ 242.001761][ T1435] node 0: slabs: 848, objs: 13568, free: 0 [ 242.004545][ T23] 0 [ 242.010585][ T1435] node 1: slabs: 370, objs: 3848, free: 39 [ 242.012938][ T23] 0 [ 242.018809][ T5212] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 242.025183][ T23] 0 [ 242.053482][ T5212] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 242.063561][ T23] 0 [ 242.067674][ T5212] node 0: slabs: 848, objs: 13568, free: 0 [ 242.073732][ T23] [ 242.073742][ T23] Node 0 [ 242.076455][ T5212] node 1: slabs: 370, objs: 3848, free: 39 [ 242.082455][ T23] Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 242.085702][ T144] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 242.094842][ T23] lowmem_reserve[]: 0 0 0 0 [ 242.099720][ T144] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 242.108174][ T23] 0 [ 242.108208][ T23] Node 1 Normal free:20604kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:120kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 242.108273][ T23] lowmem_reserve[]: 0 0 0 0 0 [ 242.108325][ T23] Node 0 [ 242.110950][ T144] node 0: slabs: 848, objs: 13568, free: 0 [ 242.117070][ T23] DMA: [ 242.119502][ T144] node 1: slabs: 370, objs: 3848, free: 39 [ 242.122553][ T23] 0*4kB [ 242.132085][ T3550] mqueue_inode_cache 60KB 60KB [ 242.167229][ T23] 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB [ 242.181956][ T1174] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 242.186052][ T23] 1*2048kB (M) [ 242.199951][ T1174] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 242.200912][ T23] 2*4096kB [ 242.232305][ T1174] node 0: slabs: 848, objs: 13568, free: 0 [ 242.236904][ T23] (M) [ 242.239892][ T1174] node 1: slabs: 370, objs: 3848, free: 39 [ 242.245994][ T23] = 10240kB [ 242.276517][ T1435] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 242.283276][ T23] Node 0 [ 242.287048][ T1435] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 242.298029][ T23] DMA32: 157*4kB (UME) 122*8kB (ME) 64*16kB (ME) 35*32kB [ 242.302922][ C0] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 242.307826][ T23] (UME) 10*64kB [ 242.310524][ C0] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 242.316968][ T23] (UME) [ 242.320100][ C0] node 0: slabs: 4224, objs: 50688, free: 0 [ 242.329621][ T23] 2*128kB [ 242.332809][ C0] node 1: slabs: 810, objs: 9720, free: 34 [ 242.343355][ T23] (M) 0*256kB [ 242.351690][ T1435] node 0: slabs: 848, objs: 13568, free: 0 [ 242.359173][ T23] 0*512kB 0*1024kB 0*2048kB 0*4096kB = 4644kB [ 242.359230][ T23] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB [ 242.363004][ T1435] node 1: slabs: 370, objs: 3848, free: 39 [ 242.373923][ T23] 0*4096kB [ 242.421005][ T3550] f2fs_bio_post_read_ctx 16KB 16KB [ 242.425081][ T23] = 0kB [ 242.440283][ T23] Node 1 Normal: 5*4kB (UME) 19*8kB (UME) 21*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20604kB [ 242.446475][ T3550] jfs_mp 7KB 7KB [ 242.457551][ T23] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 242.473662][ T23] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 242.485128][ T23] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 242.495147][ T23] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 242.496531][ T3550] cifs_small_rq 16KB 16KB [ 242.505387][ T23] 868 total pagecache pages [ 242.516345][ T23] 1 pages in swap cache [ 242.520642][ T23] Swap cache stats: add 41420, delete 41419, find 241/936 [ 242.527914][ T23] Free swap = 104980kB [ 242.532315][ T23] Total swap = 124996kB [ 242.536835][ T23] 2097051 pages RAM [ 242.540861][ T23] 0 pages HighMem/MovableOnly [ 242.545823][ T23] 411492 pages reserved [ 242.550314][ T23] 0 pages cma reserved [ 242.559661][ T3550] cifs_request 67KB 67KB [ 242.565889][ T3550] cifs_mpx_ids 4KB 4KB [ 242.579687][ T3550] nfs_commit_data 15KB 15KB [ 242.586225][ T3550] nfs_write_data 47KB 47KB [ 242.594211][ T3550] jbd2_inode 7KB 7KB [ 242.600632][ T3550] ext4_system_zone 3KB 3KB [ 242.606877][ T3550] ext4_io_end_vec 7KB 7KB [ 242.614180][ T3550] ext4_bio_post_read_ctx 15KB 15KB [ 242.621198][ T3550] pid_namespace 7KB 7KB [ 242.627434][ T3550] rpc_buffers 31KB 31KB [ 242.633774][ T3550] rpc_tasks 3KB 3KB [ 242.640363][ T3550] UNIX-STREAM 384KB 384KB [ 242.646753][ T3550] UNIX 344KB 448KB [ 242.653071][ T3550] MPTCP 63KB 63KB [ 242.665519][ T3550] request_sock_subflow_v4 7KB 7KB [ 242.672521][ T3550] tcp_bind_bucket 8KB 8KB [ 242.678965][ T3550] ip_fib_trie 28KB 28KB [ 242.685172][ T3550] ip_fib_alias 106KB 106KB [ 242.691714][ T3550] ip_dst_cache 28KB 28KB [ 242.698977][ T3550] RAW 123KB 123KB [ 242.705380][ T3550] UDP 154KB 154KB [ 242.717088][ T3550] tw_sock_TCP 7KB 7KB [ 242.723471][ T3550] request_sock_TCP 15KB 15KB [ 242.730022][ T3550] TCP 60KB 60KB [ 242.736202][ T3550] hugetlbfs_inode_cache 30KB 30KB [ 242.742793][ T3550] fscache_cookie_jar 15KB 15KB [ 242.749196][ T3550] bio-256 11KB 11KB [ 242.755312][ T3550] ep_head 16KB 16KB [ 242.761499][ T3550] eventpoll_pwq 43KB 43KB [ 242.767799][ T3550] eventpoll_epi 78KB 78KB [ 242.774393][ T3550] inotify_inode_mark 19KB 19KB [ 242.785662][ T3550] bio_crypt_ctx 7KB 7KB [ 242.791920][ T3550] request_queue 584KB 769KB [ 242.805970][ T3550] blkdev_ioc 18KB 18KB [ 242.829298][ T3550] bio-200 304KB 337KB [ 242.835662][ T3550] biovec-max 386KB 386KB [ 242.876325][ T3550] biovec-64 515KB 582KB [ 242.882627][ T3550] biovec-16 78KB 78KB [ 242.903887][ T3550] bio_integrity_payload 3KB 3KB [ 242.938631][ T3550] user_namespace 15KB 15KB [ 242.944774][ T3550] uid_cache 7KB 7KB [ 242.971833][ T3550] dmaengine-unmap-256 30KB 30KB [ 242.999628][ T3550] dmaengine-unmap-128 15KB 15KB [ 243.030963][ T3550] dmaengine-unmap-16 4KB 4KB [ 243.053811][ T3550] dmaengine-unmap-2 4KB 4KB [ 243.081275][ T3550] QIPCRTR 31KB 31KB [ 243.121372][ T3550] audit_buffer 3KB 3KB [ 243.148153][ T3550] skbuff_ext_cache 48KB 48KB [ 243.154540][ T3550] skbuff_fclone_cache 210KB 247KB [ 243.173736][ T3550] skbuff_head_cache 18926KB 18937KB [ 243.188709][ T3550] configfs_dir_cache 8KB 8KB [ 243.195129][ T3550] file_lock_cache 90KB 90KB [ 243.201503][ T3550] file_lock_ctx 15KB 15KB [ 243.207673][ T3550] fsnotify_mark_connector 16KB 16KB [ 243.214385][ T3550] taskstats 15KB 15KB [ 243.220968][ T3550] proc_dir_entry 953KB 956KB [ 243.228719][ T3550] pde_opener 19KB 19KB [ 243.235762][ T3550] seq_file 56KB 75KB [ 243.242055][ T3550] sigqueue 129KB 149KB [ 243.248246][ T3550] shmem_inode_cache 7145KB 7244KB [ 243.255769][ T3550] kernfs_iattrs_cache 7KB 7KB [ 243.268384][ T3550] kernfs_node_cache 31028KB 31216KB [ 243.274875][ T3550] mnt_cache 206KB 220KB [ 243.296066][ T3550] filp 375KB 1012KB [ 243.303359][ T3550] names_cache 467KB 743KB [ 243.322176][ T3550] net_namespace 185KB 212KB [ 243.334456][ T3550] iint_cache 48KB 48KB [ 243.354176][ T3550] lsm_inode_cache 1790KB 1940KB [ 243.364249][ T3550] lsm_file_cache 202KB 334KB [ 243.383689][ T3550] key_jar 15KB 15KB [ 243.391145][ T3550] uts_namespace 15KB 15KB [ 243.420664][ T3550] nsproxy 19KB 19KB [ 243.432065][ T3550] vm_area_struct 542KB 727KB [ 243.444353][ T3550] fs_cache 108KB 108KB [ 243.455233][ T3550] files_cache 368KB 382KB [ 243.471722][ T3550] signal_cache 901KB 2099KB [ 243.481362][ T3550] sighand_cache 901KB 901KB [ 243.495159][ T3550] task_struct 2975KB 4224KB [ 243.505790][ T3550] cred_jar 165KB 416KB [ 243.537149][ T3550] anon_vma_chain 265KB 378KB [ 243.543335][ T3550] anon_vma 170KB 211KB [ 243.566190][ T3550] pid 138KB 356KB [ 243.572340][ T3550] Acpi-Operand 204KB 237KB [ 243.589743][ T3550] Acpi-ParseExt 23KB 23KB [ 243.595881][ T3550] Acpi-Parse 126KB 126KB [ 243.612154][ T3550] Acpi-State 196KB 232KB [ 243.622514][ T3550] Acpi-Namespace 28KB 28KB [ 243.633895][ T3550] numa_policy 3KB 3KB [ 243.641943][ T3550] perf_event 31KB 31KB [ 243.648867][ T3550] trace_event_file 432KB 432KB [ 243.655598][ T3550] ftrace_event_field 548KB 548KB [ 243.661971][ T3550] pool_workqueue 261KB 288KB [ 243.680302][ T3550] task_group 30KB 30KB [ 243.693119][ T3550] mm_struct 427KB 661KB [ 243.702796][ T3550] vmap_area 234KB 322KB [ 243.715641][ T3550] debug_objects_cache 1667KB 1720KB [ 243.725707][ T3550] page->ptl 124KB 224KB [ 243.742931][ T3550] kmalloc-cg-8k 2128KB 2128KB [ 243.751418][ T3550] kmalloc-cg-4k 4912KB 5320KB [ 243.765393][ T3550] kmalloc-cg-2k 1260KB 1284KB [ 243.773903][ T3550] kmalloc-cg-1k 868KB 1024KB [ 243.788014][ T3550] kmalloc-cg-512 2098KB 2148KB [ 243.794246][ T3550] kmalloc-cg-256 40KB 40KB [ 243.804457][ T3550] kmalloc-cg-192 164KB 164KB [ 243.814463][ T3550] kmalloc-cg-128 104KB 104KB [ 243.820770][ T3550] kmalloc-cg-96 20KB 20KB [ 243.831933][ T3550] kmalloc-cg-64 16KB 16KB [ 243.844445][ T3550] kmalloc-cg-32 20KB 20KB [ 243.861194][ T3550] kmalloc-cg-16 79KB 188KB [ 243.872437][ T3550] kmalloc-cg-8 31KB 31KB [ 243.884139][ T3550] kmalloc-8k 9488KB 9584KB [ 243.894797][ T3550] kmalloc-4k 206352KB 206432KB [ 243.963447][ T3550] kmalloc-2k 24960KB 28384KB [ 243.993743][ T3550] kmalloc-1k 34754KB 34832KB [ 244.025988][ T3550] kmalloc-512 32635KB 32648KB [ 244.032149][ T3550] kmalloc-256 4889KB 4944KB [ 244.088256][ T3550] kmalloc-192 1126KB 1572KB [ 244.106062][ T3550] kmalloc-128 1644KB 2012KB [ 244.112459][ T3550] kmalloc-96 1247KB 1252KB [ 244.151443][ T3550] kmalloc-64 3105KB 3964KB [ 244.198557][ T3550] kmalloc-32 712KB 792KB [ 244.204715][ T3550] kmalloc-16 261KB 340KB [ 244.257311][ T3550] kmalloc-8 549KB 593KB [ 244.263460][ T3550] kmem_cache_node 207KB 208KB [ 244.322002][ T3550] kmem_cache 172KB 172KB [ 244.354457][ T3550] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/,task=klogd,pid=3550,uid=0 [ 244.410267][ T3550] Out of memory (oom_kill_allocating_task): Killed process 3550 (klogd) total-vm:4036kB, anon-rss:0kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:48kB oom_score_adj:0 [ 246.496365][ T28] oom_reaper: reaped process 3550 (klogd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 246.712077][ T1435] slab_out_of_memory: 3881 callbacks suppressed [ 246.712100][ T1435] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 246.714691][ T5212] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 246.718885][ T1435] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 246.728086][ T5212] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 246.737452][ T1435] node 0: slabs: 848, objs: 13568, free: 0 [ 246.737472][ C0] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 246.737481][ T1435] node 1: slabs: 370, objs: 3848, free: 39 [ 246.737498][ C0] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 246.737519][ C0] node 0: slabs: 4317, objs: 51804, free: 0 [ 246.737536][ C0] node 1: slabs: 810, objs: 9720, free: 34 [ 246.737580][ T1174] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 246.747956][ T5212] node 0: slabs: 848, objs: 13568, free: 0 [ 246.747986][ T5212] node 1: slabs: 370, objs: 3848, free: 39 [ 246.748101][ T9] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 246.748127][ T9] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 246.748152][ T9] node 0: slabs: 848, objs: 13568, free: 0 [ 246.748172][ T9] node 1: slabs: 370, objs: 3848, free: 39 [ 246.748261][ T9] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 246.758646][ T1174] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 246.758676][ T1174] node 0: slabs: 848, objs: 13568, free: 0 [ 246.758694][ T1174] node 1: slabs: 370, objs: 3848, free: 39 [ 246.768954][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 246.773165][ T9] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 246.779176][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 246.779215][ T23] node 0: slabs: 4317, objs: 51804, free: 0 [ 246.779233][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 246.779280][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 246.790009][ T9] node 0: slabs: 848, objs: 13568, free: 0 [ 246.796233][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 246.796256][ T23] node 0: slabs: 4317, objs: 51804, free: 0 [ 246.796283][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 246.802276][ T9] node 1: slabs: 370, objs: 3848, free: 39 [ 246.812087][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 246.819993][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 246.824761][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 246.833984][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 246.844129][ T23] node 0: slabs: 4320, objs: 51840, free: 0 [ 246.850621][ T4327] node 0: slabs: 4320, objs: 51840, free: 0 [ 246.856991][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 246.865993][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 248.374005][ T154] kworker/u4:2 invoked oom-killer: gfp_mask=0x40cc0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 248.427668][ T154] CPU: 0 PID: 154 Comm: kworker/u4:2 Not tainted syzkaller #0 [ 248.435216][ T154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 248.445334][ T154] Workqueue: netns cleanup_net [ 248.450161][ T154] Call Trace: [ 248.453589][ T154] [ 248.456963][ T154] dump_stack_lvl+0x188/0x250 [ 248.461967][ T154] ? show_regs_print_info+0x20/0x20 [ 248.467618][ T154] ? load_image+0x400/0x400 [ 248.472275][ T154] ? local_lock_release+0x170/0x170 [ 248.477705][ T154] ? __rwlock_init+0x140/0x140 [ 248.482518][ T154] dump_header+0xd4/0x770 [ 248.486896][ T154] oom_kill_process+0x20e/0x3d0 [ 248.491949][ T154] out_of_memory+0xdbe/0x1180 [ 248.496997][ T154] ? __alloc_pages+0x480/0x480 [ 248.501808][ T154] ? unreserve_highatomic_pageblock+0x363/0x4d0 [ 248.508085][ T154] ? unregister_oom_notifier+0x20/0x20 [ 248.513682][ T154] __alloc_pages_slowpath+0x1dc5/0x28b0 [ 248.519432][ T154] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 248.525292][ T154] ? prepare_alloc_pages+0x368/0x5f0 [ 248.530729][ T154] __alloc_pages+0x340/0x480 [ 248.535370][ T154] ? zone_statistics+0x170/0x170 [ 248.540537][ T154] new_slab+0x2e6/0x4b0 [ 248.544906][ T154] ___slab_alloc+0x80a/0xdd0 [ 248.549527][ T154] ? kobject_uevent_env+0x27a/0x890 [ 248.554771][ T154] kmem_cache_alloc_trace+0x1a5/0x2a0 [ 248.560269][ T154] ? kobject_uevent_env+0x27a/0x890 [ 248.565820][ T154] kobject_uevent_env+0x27a/0x890 [ 248.570889][ T154] ? kobject_uevent_env+0x2f4/0x890 [ 248.576138][ T154] netdev_queue_update_kobjects+0x1d7/0x3e0 [ 248.582085][ T154] netdev_register_kobject+0x273/0x320 [ 248.587587][ T154] register_netdevice+0x1042/0x1710 [ 248.592891][ T154] ? netif_stacked_transfer_operstate+0x200/0x200 [ 248.599345][ T154] ? __debugfs_create_file+0x476/0x510 [ 248.604998][ T154] nsim_create+0x32d/0x3e0 [ 248.609461][ T154] __nsim_dev_port_add+0x698/0xab0 [ 248.614615][ T154] ? nsim_dev_reload_destroy+0x240/0x240 [ 248.620484][ T154] ? __debugfs_create_file+0x476/0x510 [ 248.626253][ T154] nsim_dev_port_add_all+0x37/0x100 [ 248.631580][ T154] nsim_dev_reload_up+0x4a7/0x820 [ 248.636630][ T154] ? nsim_dev_reload_destroy+0x1e2/0x240 [ 248.642315][ T154] ? nsim_dev_reload_down+0x160/0x160 [ 248.647831][ T154] ? nsim_dev_reload_down+0x10f/0x160 [ 248.653241][ T154] devlink_reload+0x350/0x790 [ 248.657998][ T154] ? devlink_resources_validate+0xc0/0xc0 [ 248.663761][ T154] ? devlink_try_get+0x148/0x1c0 [ 248.668759][ T154] devlink_pernet_pre_exit+0x1aa/0x310 [ 248.674258][ T154] ? devlink_trap_policer_notify+0x160/0x160 [ 248.680281][ T154] ? nft_pernet+0x1c1/0x200 [ 248.684866][ T154] cleanup_net+0x591/0xba0 [ 248.689329][ T154] ? ops_free_list+0x330/0x330 [ 248.694139][ T154] ? _raw_spin_unlock_irq+0x1f/0x40 [ 248.699566][ T154] process_one_work+0x85f/0x1010 [ 248.704593][ T154] ? worker_detach_from_pool+0x240/0x240 [ 248.710534][ T154] ? lockdep_hardirqs_off+0x70/0x100 [ 248.716000][ T154] ? _raw_spin_lock_irq+0xb7/0xf0 [ 248.721332][ T154] ? _raw_spin_lock_irqsave+0x100/0x100 [ 248.726925][ T154] ? wq_worker_running+0x97/0x170 [ 248.732002][ T154] worker_thread+0xaa6/0x1290 [ 248.736762][ T154] kthread+0x436/0x520 [ 248.740876][ T154] ? rcu_lock_release+0x20/0x20 [ 248.745770][ T154] ? kthread_blkcg+0xd0/0xd0 [ 248.750749][ T154] ret_from_fork+0x1f/0x30 [ 248.755317][ T154] [ 248.845778][ T154] Mem-Info: [ 248.853673][ T154] active_anon:0 inactive_anon:1 isolated_anon:0 [ 248.853673][ T154] active_file:58 inactive_file:21 isolated_file:0 [ 248.853673][ T154] unevictable:768 dirty:0 writeback:0 [ 248.853673][ T154] slab_reclaimable:16047 slab_unreclaimable:115403 [ 248.853673][ T154] mapped:1 shmem:768 pagetables:301 bounce:0 [ 248.853673][ T154] kernel_misc_reclaimable:0 [ 248.853673][ T154] free:8602 free_pcp:0 free_cma:0 [ 248.906033][ T154] Node 0 active_anon:0kB inactive_anon:4kB active_file:188kB inactive_file:24kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11152kB pagetables:1164kB all_unreclaimable? no [ 248.945968][ T154] Node 1 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:140kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:144kB pagetables:40kB all_unreclaimable? yes [ 249.105150][ T154] Node 0 DMA free:10240kB min:204kB low:252kB high:300kB 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 [ 249.187418][ T154] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 249.193286][ T154] Node 0 DMA32 free:2612kB min:34784kB low:43480kB high:52176kB reserved_highatomic:26624KB active_anon:0kB inactive_anon:4kB active_file:0kB inactive_file:364kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:720kB local_pcp:472kB free_cma:0kB [ 249.304210][ T154] lowmem_reserve[]: 0 0 0 0 0 [ 249.336814][ T154] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 249.456027][ T154] lowmem_reserve[]: 0 0 0 0 0 [ 249.461124][ T154] Node 1 Normal free:20604kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:132kB inactive_file:0kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 249.646138][ T154] lowmem_reserve[]: 0 0 0 0 0 [ 249.651070][ T154] Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10240kB [ 249.753602][ T154] Node 0 DMA32: 86*4kB (UME) 79*8kB (UME) 36*16kB (UME) 25*32kB (ME) 2*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 2480kB [ 249.791080][ T154] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 249.808692][ T154] Node 1 Normal: 5*4kB (UME) 19*8kB (UME) 21*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20604kB [ 249.832819][ T154] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 249.865284][ T154] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 249.942579][ T154] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 249.969844][ T154] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 250.004905][ T154] 868 total pagecache pages [ 250.016156][ T154] 1 pages in swap cache [ 250.020388][ T154] Swap cache stats: add 41420, delete 41419, find 241/936 [ 250.056058][ T154] Free swap = 104980kB [ 250.060282][ T154] Total swap = 124996kB [ 250.075849][ T154] 2097051 pages RAM [ 250.100688][ T154] 0 pages HighMem/MovableOnly [ 250.105442][ T154] 411492 pages reserved [ 250.156000][ T154] 0 pages cma reserved [ 250.168857][ T154] Unreclaimable slab info: [ 250.173921][ T154] Name Used Total [ 250.224946][ T154] pid_2 18KB 18KB [ 250.249425][ T154] bio-320 7KB 7KB [ 250.255604][ T154] zswap_entry 3391KB 3391KB [ 250.309020][ T154] batadv_tt_change_cache 8KB 8KB [ 250.315796][ T154] batadv_tl_cache 8KB 8KB [ 250.365740][ T154] TIPC 63KB 63KB [ 250.399782][ T154] SCTPv6 63KB 63KB [ 250.456030][ T154] DCCPv6 59KB 59KB [ 250.462280][ T154] DCCP 61KB 61KB [ 250.500884][ T154] RXRPC 61KB 61KB [ 250.507553][ T154] rxrpc_call_jar 236KB 252KB [ 250.513759][ T154] bridge_fdb_cache 19KB 19KB [ 250.520038][ T154] MPTCPv6 61KB 61KB [ 250.526248][ T154] fib6_nodes 192KB 192KB [ 250.532376][ T154] ip6_dst_cache 256KB 528KB [ 250.538882][ T154] RAWv6 146KB 246KB [ 250.544994][ T154] UDPv6 128KB 128KB [ 250.551444][ T154] tw_sock_TCPv6 7KB 7KB [ 250.558535][ T154] TCPv6 95KB 95KB [ 250.564651][ T154] nf_conntrack 39KB 39KB [ 250.572687][ T154] wg_peer 152KB 152KB [ 250.580579][ T154] allowedips_node 19KB 19KB [ 250.587249][ T154] t10_alua_lu_gp_cache 3KB 3KB [ 250.593816][ T154] sd_ext_cdb 3KB 3KB [ 250.624059][ T154] scsi_sense_cache 1348KB 1348KB [ 250.630269][ T154] virtio_scsi_cmd 16KB 16KB [ 250.636437][ T154] bio-136 88KB 88KB [ 250.642575][ T154] sgpool-128 29KB 29KB [ 250.648885][ T154] sgpool-64 63KB 63KB [ 250.655353][ T154] sgpool-32 294KB 378KB [ 250.663612][ T154] sgpool-16 135KB 135KB [ 250.670510][ T154] sgpool-8 93KB 93KB [ 250.677588][ T154] bio-224 3KB 3KB [ 250.684145][ T154] mqueue_inode_cache 60KB 60KB [ 250.696672][ T154] f2fs_bio_post_read_ctx 16KB 16KB [ 250.704719][ T154] jfs_mp 7KB 7KB [ 250.754773][ T154] cifs_small_rq 16KB 16KB [ 250.775552][ T154] cifs_request 67KB 67KB [ 250.785114][ T154] cifs_mpx_ids 4KB 4KB [ 250.798096][ T154] nfs_commit_data 15KB 15KB [ 250.814104][ T154] nfs_write_data 47KB 47KB [ 250.823343][ T154] jbd2_inode 7KB 7KB [ 250.837495][ T154] ext4_system_zone 3KB 3KB [ 250.844022][ T154] ext4_io_end_vec 7KB 7KB [ 250.858312][ T154] ext4_bio_post_read_ctx 15KB 15KB [ 250.864925][ T154] pid_namespace 7KB 7KB [ 250.883218][ T154] rpc_buffers 31KB 31KB [ 250.897759][ T154] rpc_tasks 3KB 3KB [ 250.905455][ T154] UNIX-STREAM 384KB 384KB [ 250.939105][ T154] UNIX 344KB 448KB [ 250.945257][ T154] MPTCP 63KB 63KB [ 251.005992][ T154] request_sock_subflow_v4 7KB 7KB [ 251.012958][ T154] tcp_bind_bucket 8KB 8KB [ 251.033712][ T154] ip_fib_trie 28KB 28KB [ 251.079927][ T154] ip_fib_alias 106KB 106KB [ 251.112750][ T154] ip_dst_cache 28KB 28KB [ 251.155686][ T154] RAW 123KB 123KB [ 251.222288][ T154] UDP 154KB 154KB [ 251.259972][ T154] tw_sock_TCP 7KB 7KB [ 251.296404][ T154] request_sock_TCP 15KB 15KB [ 251.302700][ T154] TCP 60KB 60KB [ 251.345475][ T154] hugetlbfs_inode_cache 30KB 30KB [ 251.354842][ T154] fscache_cookie_jar 15KB 15KB [ 251.371616][ T154] bio-256 11KB 11KB [ 251.377866][ T154] ep_head 16KB 16KB [ 251.383983][ T154] eventpoll_pwq 43KB 43KB [ 251.390227][ T154] eventpoll_epi 78KB 78KB [ 251.396452][ T154] inotify_inode_mark 19KB 19KB [ 251.402934][ T154] bio_crypt_ctx 7KB 7KB [ 251.409138][ T154] request_queue 584KB 769KB [ 251.416628][ T154] blkdev_ioc 18KB 18KB [ 251.422886][ T154] bio-200 304KB 337KB [ 251.429396][ T154] biovec-max 386KB 386KB [ 251.435506][ T154] biovec-64 515KB 582KB [ 251.476022][ T4327] warn_alloc: 7881 callbacks suppressed [ 251.476042][ T4327] kworker/0:9: page allocation failure: order:0, mode:0xa20(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0-1 [ 251.494310][ T4327] CPU: 0 PID: 4327 Comm: kworker/0:9 Not tainted syzkaller #0 [ 251.502002][ T4327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 251.512103][ T4327] Workqueue: events nsim_dev_trap_report_work [ 251.516072][ T154] biovec-16 78KB 78KB [ 251.518221][ T4327] Call Trace: [ 251.518235][ T4327] [ 251.518245][ T4327] dump_stack_lvl+0x188/0x250 [ 251.518269][ T4327] ? rcu_lock_release+0x5/0x20 [ 251.518293][ T4327] ? show_regs_print_info+0x20/0x20 [ 251.518314][ T4327] ? load_image+0x400/0x400 [ 251.518346][ T4327] warn_alloc+0x243/0x320 [ 251.518371][ T4327] ? seqcount_lockdep_reader_access+0xce/0x190 [ 251.518397][ T4327] ? zone_watermark_ok_safe+0x240/0x240 [ 251.518428][ T4327] ? __cpuset_node_allowed+0x99/0x540 [ 251.518456][ T4327] ? wakeup_kswapd+0x46b/0x7a0 [ 251.518485][ T4327] __alloc_pages_slowpath+0x2844/0x28b0 [ 251.518548][ T4327] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 251.518579][ T4327] ? __alloc_pages+0x480/0x480 [ 251.518606][ T4327] ? prepare_alloc_pages+0x368/0x5f0 [ 251.518641][ T4327] __alloc_pages+0x340/0x480 [ 251.518669][ T4327] ? zone_statistics+0x170/0x170 [ 251.518703][ T4327] ? alloc_pages+0x438/0x550 [ 251.518732][ T4327] new_slab+0x2e6/0x4b0 [ 251.518756][ T4327] ___slab_alloc+0x80a/0xdd0 [ 251.518779][ T4327] ? __alloc_skb+0xf4/0x750 [ 251.518810][ T4327] kmem_cache_alloc_node+0x1c3/0x2d0 [ 251.518832][ T4327] ? __alloc_skb+0xf4/0x750 [ 251.518861][ T4327] __alloc_skb+0xf4/0x750 [ 251.518898][ T4327] nsim_dev_trap_report_work+0x2a1/0xb40 [ 251.518931][ T4327] ? read_lock_is_recursive+0x10/0x10 [ 251.518966][ T4327] ? _raw_spin_unlock_irq+0x1f/0x40 [ 251.518996][ T4327] process_one_work+0x85f/0x1010 [ 251.519037][ T4327] ? worker_detach_from_pool+0x240/0x240 [ 251.519060][ T4327] ? lockdep_hardirqs_off+0x70/0x100 [ 251.519088][ T4327] ? _raw_spin_lock_irq+0xb7/0xf0 [ 251.519108][ T4327] ? _raw_spin_lock_irqsave+0x100/0x100 [ 251.519133][ T4327] ? wq_worker_running+0x97/0x170 [ 251.519159][ T4327] worker_thread+0xaa6/0x1290 [ 251.519213][ T4327] kthread+0x436/0x520 [ 251.519234][ T4327] ? rcu_lock_release+0x20/0x20 [ 251.519255][ T4327] ? kthread_blkcg+0xd0/0xd0 [ 251.525384][ T154] bio_integrity_payload 3KB 3KB [ 251.528749][ T4327] ret_from_fork+0x1f/0x30 [ 251.528796][ T4327] [ 251.530837][ T4327] Mem-Info: [ 251.616339][ T154] user_namespace 15KB 15KB [ 251.618605][ T4327] active_anon:0 inactive_anon:1 isolated_anon:0 [ 251.618605][ T4327] active_file:71 inactive_file:6 isolated_file:0 [ 251.618605][ T4327] unevictable:768 dirty:0 writeback:0 [ 251.618605][ T4327] slab_reclaimable:16047 slab_unreclaimable:115643 [ 251.618605][ T4327] mapped:1 shmem:768 pagetables:301 bounce:0 [ 251.618605][ T4327] kernel_misc_reclaimable:0 [ 251.618605][ T4327] free:8399 free_pcp:225 free_cma:0 [ 251.647970][ T154] uid_cache 7KB 7KB [ 251.653270][ T4327] Node 0 active_anon:0kB inactive_anon:4kB active_file:208kB inactive_file:52kB unevictable:1536kB isolated(anon):0kB isolated(file):12kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11152kB pagetables:1164kB all_unreclaimable? no [ 251.676092][ T154] dmaengine-unmap-256 30KB 30KB [ 251.679867][ T4327] Node 1 active_anon:0kB inactive_anon:0kB active_file:76kB inactive_file:0kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:144kB pagetables:40kB all_unreclaimable? yes [ 251.685531][ T154] dmaengine-unmap-128 15KB 15KB [ 251.690794][ T4327] Node 0 DMA free:10240kB min:204kB low:252kB high:300kB 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 [ 251.690870][ T4327] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 251.690927][ T4327] Node 0 DMA32 free:2752kB min:36832kB low:45528kB high:54224kB reserved_highatomic:26624KB active_anon:0kB inactive_anon:4kB active_file:72kB inactive_file:12kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:880kB local_pcp:428kB free_cma:0kB [ 251.690992][ T4327] lowmem_reserve[]: 0 0 0 0 0 [ 251.691041][ T4327] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 251.723335][ T5212] slab_out_of_memory: 3949 callbacks suppressed [ 251.723394][ T5212] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 251.723714][ T4327] lowmem_reserve[]: 0 [ 251.726911][ T5212] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 251.733006][ T4327] 0 0 [ 251.773379][ T5212] node 0: slabs: 848, objs: 13568, free: 0 [ 251.779109][ T4327] 0 [ 251.808926][ T5212] node 1: slabs: 370, objs: 3848, free: 39 [ 251.814913][ T4327] 0 [ 251.846209][ T9] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 251.850725][ T4327] [ 251.878032][ T9] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 251.882807][ T4327] Node 1 [ 251.911236][ T9] node 0: slabs: 848, objs: 13568, free: 0 [ 251.915965][ T4327] Normal free:20604kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:172kB inactive_file:0kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 251.942714][ T9] node 1: slabs: 370, objs: 3848, free: 39 [ 251.948997][ T4327] lowmem_reserve[]: [ 251.976576][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 251.981531][ T4327] 0 [ 251.984325][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 251.990575][ T4327] 0 [ 251.993104][ T23] node 0: slabs: 4420, objs: 53040, free: 0 [ 252.002177][ T4327] 0 [ 252.004701][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 252.015089][ T4327] 0 [ 252.018135][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 252.024316][ T4327] 0 [ 252.052313][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 252.058530][ T4327] [ 252.058543][ T4327] Node 0 [ 252.062344][ T23] node 0: slabs: 4420, objs: 53040, free: 0 [ 252.070353][ T4327] DMA: [ 252.072876][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 252.083869][ T4327] 0*4kB [ 252.088769][ T1174] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 252.092489][ T4327] 0*8kB [ 252.095292][ T1174] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 252.101313][ T4327] 0*16kB [ 252.104015][ T1174] node 0: slabs: 848, objs: 13568, free: 0 [ 252.112536][ T4327] 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10240kB [ 252.112658][ T4327] Node 0 DMA32: 83*4kB (UME) 59*8kB [ 252.115230][ T1174] node 1: slabs: 370, objs: 3848, free: 39 [ 252.126039][ T4327] (UME) [ 252.128905][ T1435] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 252.131657][ T4327] 33*16kB (ME) 16*32kB (UM) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1844kB [ 252.131775][ T4327] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 252.131918][ T4327] Node 1 Normal: 5*4kB (UME) 19*8kB (UME) 21*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20604kB [ 252.132145][ T4327] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 252.132166][ T4327] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 252.132186][ T4327] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 252.132212][ T4327] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 252.132239][ T4327] 868 total pagecache pages [ 252.132249][ T4327] 1 pages in swap cache [ 252.132259][ T4327] Swap cache stats: add 41420, delete 41419, find 241/936 [ 252.132277][ T4327] Free swap = 104980kB [ 252.132287][ T4327] Total swap = 124996kB [ 252.132298][ T4327] 2097051 pages RAM [ 252.132314][ T4327] 0 pages HighMem/MovableOnly [ 252.132322][ T4327] 411492 pages reserved [ 252.132330][ T4327] 0 pages cma reserved [ 252.132341][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 252.132359][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 252.132381][ T4327] node 0: slabs: 4422, objs: 53064, free: 0 [ 252.132399][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 252.132461][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 252.138684][ T1435] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 252.141593][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 252.147696][ T1435] node 0: slabs: 848, objs: 13568, free: 0 [ 252.150535][ T4327] node 0: slabs: 4422, objs: 53064, free: 0 [ 252.159938][ T1435] node 1: slabs: 370, objs: 3848, free: 39 [ 252.162803][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 252.195896][ T154] dmaengine-unmap-16 4KB 4KB [ 252.197797][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 252.203917][ T154] dmaengine-unmap-2 4KB 4KB [ 252.206801][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 252.206825][ T4327] node 0: slabs: 4422, objs: 53064, free: 0 [ 252.206843][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 252.206911][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 252.256242][ T154] QIPCRTR 31KB 31KB [ 252.264900][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 252.366093][ T154] audit_buffer 3KB 3KB [ 252.366360][ T4327] node 0: slabs: 4424, objs: 53088, free: 0 [ 252.374763][ T154] skbuff_ext_cache 48KB 48KB [ 252.385079][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 252.562498][ T154] skbuff_fclone_cache 210KB 247KB [ 252.569000][ T154] skbuff_head_cache 19639KB 19650KB [ 252.575117][ T154] configfs_dir_cache 8KB 8KB [ 252.581612][ T154] file_lock_cache 90KB 90KB [ 252.587805][ T154] file_lock_ctx 15KB 15KB [ 252.594010][ T154] fsnotify_mark_connector 16KB 16KB [ 252.602039][ T154] taskstats 15KB 15KB [ 252.608295][ T154] proc_dir_entry 953KB 956KB [ 252.614503][ T154] pde_opener 19KB 19KB [ 252.620828][ T154] seq_file 56KB 75KB [ 252.627048][ T154] sigqueue 129KB 149KB [ 252.633211][ T154] shmem_inode_cache 7145KB 7244KB [ 252.703671][ T154] kernfs_iattrs_cache 7KB 7KB [ 252.731615][ T154] kernfs_node_cache 31028KB 31216KB [ 252.761666][ T154] mnt_cache 206KB 220KB [ 252.795738][ T154] filp 375KB 1012KB [ 252.831605][ T154] names_cache 467KB 743KB [ 252.849262][ T154] net_namespace 185KB 212KB [ 252.855513][ T154] iint_cache 48KB 48KB [ 252.886581][ T154] lsm_inode_cache 1790KB 1940KB [ 252.892727][ T154] lsm_file_cache 202KB 334KB [ 253.005976][ T154] key_jar 15KB 15KB [ 253.012134][ T154] uts_namespace 15KB 15KB [ 253.059788][ T154] nsproxy 19KB 19KB [ 253.092157][ T154] vm_area_struct 542KB 727KB [ 253.112593][ T154] fs_cache 108KB 108KB [ 253.170038][ T154] files_cache 368KB 382KB [ 253.185833][ T154] signal_cache 901KB 2099KB [ 253.206882][ T154] sighand_cache 901KB 901KB [ 253.213223][ T154] task_struct 2975KB 4224KB [ 253.271560][ T154] cred_jar 165KB 416KB [ 253.304838][ T154] anon_vma_chain 265KB 378KB [ 253.332951][ T154] anon_vma 170KB 211KB [ 253.362552][ T154] pid 138KB 356KB [ 253.392253][ T154] Acpi-Operand 204KB 237KB [ 253.415992][ T154] Acpi-ParseExt 23KB 23KB [ 253.422229][ T154] Acpi-Parse 126KB 126KB [ 253.484349][ T154] Acpi-State 196KB 232KB [ 253.526054][ T154] Acpi-Namespace 28KB 28KB [ 253.532475][ T154] numa_policy 3KB 3KB [ 253.608622][ T154] perf_event 31KB 31KB [ 253.615128][ T154] trace_event_file 432KB 432KB [ 253.684618][ T154] ftrace_event_field 548KB 548KB [ 253.726139][ T154] pool_workqueue 261KB 288KB [ 253.732286][ T154] task_group 30KB 30KB [ 253.784628][ T154] mm_struct 427KB 661KB [ 253.809383][ T154] vmap_area 234KB 322KB [ 253.815568][ T154] debug_objects_cache 1667KB 1720KB [ 253.875993][ T154] page->ptl 124KB 224KB [ 253.882200][ T154] kmalloc-cg-8k 2128KB 2128KB [ 253.901422][ T154] kmalloc-cg-4k 4912KB 5320KB [ 253.912628][ T154] kmalloc-cg-2k 1260KB 1284KB [ 253.928592][ T154] kmalloc-cg-1k 868KB 1024KB [ 253.934873][ T154] kmalloc-cg-512 2098KB 2148KB [ 253.941042][ T154] kmalloc-cg-256 40KB 40KB [ 253.947388][ T154] kmalloc-cg-192 164KB 164KB [ 253.953495][ T154] kmalloc-cg-128 104KB 104KB [ 253.959646][ T154] kmalloc-cg-96 20KB 20KB [ 253.965836][ T154] kmalloc-cg-64 16KB 16KB [ 253.971975][ T154] kmalloc-cg-32 20KB 20KB [ 253.979927][ T154] kmalloc-cg-16 79KB 188KB [ 253.990359][ T154] kmalloc-cg-8 31KB 31KB [ 253.997474][ T154] kmalloc-8k 9488KB 9584KB [ 254.003598][ T154] kmalloc-4k 206352KB 206432KB [ 254.022809][ T154] kmalloc-2k 24960KB 28384KB [ 254.036101][ T154] kmalloc-1k 34754KB 34832KB [ 254.042417][ T154] kmalloc-512 34843KB 34856KB [ 254.057010][ T154] kmalloc-256 4889KB 4944KB [ 254.063439][ T154] kmalloc-192 1126KB 1572KB [ 254.080855][ T154] kmalloc-128 1644KB 2012KB [ 254.093947][ T154] kmalloc-96 1247KB 1252KB [ 254.105335][ T154] kmalloc-64 3105KB 3964KB [ 254.111647][ T154] kmalloc-32 744KB 792KB [ 254.121944][ T154] kmalloc-16 261KB 340KB [ 254.135019][ T154] kmalloc-8 549KB 593KB [ 254.151467][ T154] kmem_cache_node 207KB 208KB [ 254.169061][ T154] kmem_cache 172KB 172KB [ 254.175218][ T154] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/syz1,task=syz.1.18,pid=5069,uid=0 [ 254.203618][ T154] Out of memory: Killed process 5070 (syz.1.18) total-vm:44920kB, anon-rss:0kB, file-rss:4kB, shmem-rss:0kB, UID:0 pgtables:80kB oom_score_adj:1000 [ 255.696121][ C0] aoe: skb alloc failure [ 255.701194][ C0] aoe: skb alloc failure [ 255.705504][ C0] aoe: skb alloc failure [ 255.709856][ C0] aoe: skb alloc failure [ 255.714240][ C0] aoe: skb alloc failure [ 255.718862][ C0] aoe: skb alloc failure [ 255.723187][ C0] aoe: skb alloc failure [ 255.727524][ C0] aoe: skb alloc failure [ 255.732001][ C0] aoe: skb alloc failure [ 255.736977][ C0] aoe: skb alloc failure [ 255.741450][ C0] aoe: skb alloc failure [ 255.745965][ C0] aoe: skb alloc failure [ 255.751291][ C0] aoe: skb alloc failure [ 255.755983][ C0] aoe: skb alloc failure [ 255.760562][ C0] aoe: skb alloc failure [ 255.764871][ C0] aoe: skb alloc failure [ 255.769216][ C0] aoe: skb alloc failure [ 255.773526][ C0] aoe: skb alloc failure [ 255.777948][ C0] aoe: skb alloc failure [ 255.782230][ C0] aoe: skb alloc failure [ 255.786553][ C0] aoe: skb alloc failure [ 255.791934][ C0] aoe: skb alloc failure [ 255.796269][ C0] aoe: skb alloc failure [ 255.800864][ C0] aoe: skb alloc failure [ 255.805150][ C0] aoe: skb alloc failure [ 255.809711][ C0] aoe: skb alloc failure [ 255.814084][ C0] aoe: skb alloc failure [ 255.818599][ C0] aoe: skb alloc failure [ 255.822885][ C0] aoe: skb alloc failure [ 255.827277][ C0] aoe: skb alloc failure [ 255.831862][ C0] aoe: skb alloc failure [ 255.836181][ C0] aoe: skb alloc failure [ 255.840532][ C0] aoe: skb alloc failure [ 255.844818][ C0] aoe: skb alloc failure [ 255.849151][ C0] aoe: skb alloc failure [ 255.853547][ C0] aoe: skb alloc failure [ 255.857978][ C0] aoe: skb alloc failure [ 255.862455][ C0] aoe: skb alloc failure [ 255.866876][ C0] aoe: skb alloc failure [ 255.871189][ C0] aoe: skb alloc failure [ 255.875861][ C0] aoe: skb alloc failure [ 255.880200][ C0] aoe: skb alloc failure [ 255.884493][ C0] aoe: skb alloc failure [ 255.889028][ C0] aoe: skb alloc failure [ 255.893420][ C0] aoe: skb alloc failure [ 255.898024][ C0] aoe: skb alloc failure [ 255.902652][ C0] aoe: skb alloc failure [ 255.907061][ C0] aoe: skb alloc failure [ 255.911356][ C0] aoe: skb alloc failure [ 255.915904][ C0] aoe: skb alloc failure [ 255.920226][ C0] aoe: skb alloc failure [ 255.924602][ C0] aoe: skb alloc failure [ 255.928922][ C0] aoe: skb alloc failure [ 255.933384][ C0] aoe: skb alloc failure [ 255.937820][ C0] aoe: skb alloc failure [ 255.942110][ C0] aoe: skb alloc failure [ 255.946430][ C0] aoe: skb alloc failure [ 255.950857][ C0] aoe: skb alloc failure [ 255.955230][ C0] aoe: skb alloc failure [ 255.959641][ C0] aoe: skb alloc failure [ 255.964060][ C0] aoe: skb alloc failure [ 255.968421][ C0] aoe: skb alloc failure [ 255.972717][ C0] aoe: skb alloc failure [ 255.977133][ C0] aoe: skb alloc failure [ 255.981508][ C0] aoe: skb alloc failure [ 255.985795][ C0] aoe: skb alloc failure [ 255.990131][ C0] aoe: skb alloc failure [ 255.994429][ C0] aoe: skb alloc failure [ 255.998841][ C0] aoe: skb alloc failure [ 256.003173][ C0] aoe: skb alloc failure [ 256.007531][ C0] aoe: skb alloc failure [ 256.011841][ C0] aoe: skb alloc failure [ 256.016352][ C0] aoe: skb alloc failure [ 256.021407][ C0] aoe: skb alloc failure [ 256.025716][ C0] aoe: skb alloc failure [ 256.030263][ C0] aoe: skb alloc failure [ 256.034649][ C0] aoe: skb alloc failure [ 256.039063][ C0] aoe: skb alloc failure [ 256.043888][ C0] aoe: skb alloc failure [ 256.048493][ C0] aoe: skb alloc failure [ 256.053927][ C0] aoe: skb alloc failure [ 256.059247][ C0] aoe: skb alloc failure [ 256.063818][ C0] aoe: skb alloc failure [ 256.068258][ C0] aoe: skb alloc failure [ 256.072639][ C0] aoe: skb alloc failure [ 256.076973][ C0] aoe: skb alloc failure [ 256.081350][ C0] aoe: skb alloc failure [ 256.085846][ C0] aoe: skb alloc failure [ 256.090434][ C0] aoe: skb alloc failure [ 256.095262][ C0] aoe: skb alloc failure [ 256.099838][ C0] aoe: skb alloc failure [ 256.104148][ C0] aoe: skb alloc failure [ 256.108481][ C0] aoe: skb alloc failure [ 256.112952][ C0] aoe: skb alloc failure [ 256.117376][ C0] aoe: skb alloc failure [ 256.121674][ C0] aoe: skb alloc failure [ 256.126182][ C0] aoe: skb alloc failure [ 256.130562][ C0] aoe: skb alloc failure [ 256.134965][ C0] aoe: skb alloc failure [ 256.139578][ C0] aoe: skb alloc failure [ 256.144076][ C0] aoe: skb alloc failure [ 256.284064][ T28] oom_reaper: reaped process 5070 (syz.1.18), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 256.398038][ T5209] udevd invoked oom-killer: gfp_mask=0x1100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0 [ 256.445982][ T5209] CPU: 0 PID: 5209 Comm: udevd Not tainted syzkaller #0 [ 256.453179][ T5209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 256.463596][ T5209] Call Trace: [ 256.467098][ T5209] [ 256.470076][ T5209] dump_stack_lvl+0x188/0x250 [ 256.474805][ T5209] ? show_regs_print_info+0x20/0x20 [ 256.480124][ T5209] ? load_image+0x400/0x400 [ 256.484717][ T5209] ? local_lock_release+0x170/0x170 [ 256.490052][ T5209] ? __rwlock_init+0x140/0x140 [ 256.495559][ T5209] dump_header+0xd4/0x770 [ 256.499949][ T5209] oom_kill_process+0x20e/0x3d0 [ 256.505320][ T5209] out_of_memory+0xedc/0x1180 [ 256.510061][ T5209] ? __alloc_pages+0x480/0x480 [ 256.514864][ T5209] ? unreserve_highatomic_pageblock+0x363/0x4d0 [ 256.521292][ T5209] ? unregister_oom_notifier+0x20/0x20 [ 256.526990][ T5209] __alloc_pages_slowpath+0x1dc5/0x28b0 [ 256.532908][ T5209] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 256.538879][ T5209] ? prepare_alloc_pages+0x368/0x5f0 [ 256.544230][ T5209] __alloc_pages+0x340/0x480 [ 256.548879][ T5209] ? zone_statistics+0x170/0x170 [ 256.553872][ T5209] ? alloc_pages+0x438/0x550 [ 256.558706][ T5209] __page_cache_alloc+0xce/0x440 [ 256.563696][ T5209] ? add_to_page_cache_lru+0x4a0/0x4a0 [ 256.569482][ T5209] ? xas_descend+0x210/0x3b0 [ 256.574308][ T5209] ? xas_load+0x127/0x140 [ 256.578846][ T5209] pagecache_get_page+0x9b6/0xf10 [ 256.583933][ T5209] ? page_cache_prev_miss+0x380/0x380 [ 256.589460][ T5209] ? count_memcg_event_mm+0x325/0x370 [ 256.594990][ T5209] ? __lock_acquire+0x7d10/0x7d10 [ 256.600079][ T5209] ? down_read+0x1aa/0x2e0 [ 256.604547][ T5209] filemap_fault+0x86a/0x1370 [ 256.609473][ T5209] ? mapping_seek_hole_data+0x1300/0x1300 [ 256.616290][ T5209] ? filemap_read_page+0x4c0/0x4c0 [ 256.621579][ T5209] ? count_memcg_event_mm+0x324/0x370 [ 256.627028][ T5209] ? verify_lock_unused+0x140/0x140 [ 256.632476][ T5209] __do_fault+0x141/0x330 [ 256.636863][ T5209] handle_mm_fault+0x2985/0x4410 [ 256.642046][ T5209] ? get_page+0xe0/0xe0 [ 256.646354][ T5209] ? vmacache_find+0x238/0x590 [ 256.651454][ T5209] ? find_vma+0xd2/0x230 [ 256.656017][ T5209] do_user_addr_fault+0x489/0xc80 [ 256.661394][ T5209] ? rcu_is_watching+0x11/0xa0 [ 256.666412][ T5209] exc_page_fault+0x60/0x100 [ 256.671055][ T5209] asm_exc_page_fault+0x22/0x30 [ 256.676119][ T5209] RIP: 0033:0x562d24a89610 [ 256.681124][ T5209] Code: Unable to access opcode bytes at RIP 0x562d24a895e6. [ 256.689098][ T5209] RSP: 002b:00007ffc4d807468 EFLAGS: 00010202 [ 256.695296][ T5209] RAX: 0000562d24a81ba0 RBX: 0000562d24ab5568 RCX: 00000000000000a1 [ 256.704188][ T5209] RDX: 0000000000000451 RSI: 00007eff4fffdb20 RDI: 0000562d61614910 [ 256.712376][ T5209] RBP: 0000562d61614910 R08: 00000000000000a0 R09: 0000000000000003 [ 256.720651][ T5209] R10: 0000000000000000 R11: 0000000000000297 R12: 0000562d24ab5588 [ 256.728941][ T5209] R13: 00007ffc4d8074e0 R14: 0000000000000000 R15: 0000000000000000 [ 256.737243][ T5209] [ 256.740749][ T144] slab_out_of_memory: 3719 callbacks suppressed [ 256.740766][ T144] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 256.742026][ C0] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 256.747824][ T144] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 256.756631][ C0] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 256.764845][ T144] node 0: slabs: 848, objs: 13568, free: 0 [ 256.774982][ C0] node 0: slabs: 4513, objs: 54156, free: 0 [ 256.775010][ C0] node 1: slabs: 810, objs: 9720, free: 34 [ 256.787031][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 256.792611][ T144] node 1: slabs: 370, objs: 3848, free: 39 [ 256.798856][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 256.805160][ T5212] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 256.813206][ T4327] node 0: slabs: 4514, objs: 54168, free: 0 [ 256.813230][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 256.819298][ T5212] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 256.829965][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 256.829990][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 256.830016][ T4327] node 0: slabs: 4514, objs: 54168, free: 0 [ 256.830037][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 256.830425][ T1435] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 256.839203][ T5212] node 0: slabs: 848, objs: 13568, free: 0 [ 256.846593][ T1435] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 256.852917][ T5212] node 1: slabs: 370, objs: 3848, free: 39 [ 256.863963][ T1435] node 0: slabs: 848, objs: 13568, free: 0 [ 256.872518][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 256.883025][ T1435] node 1: slabs: 370, objs: 3848, free: 39 [ 256.889220][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 256.895610][ T3077] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 256.904368][ T23] node 0: slabs: 4516, objs: 54192, free: 0 [ 256.910485][ T3077] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 256.921131][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 256.927149][ T3077] node 0: slabs: 848, objs: 13568, free: 0 [ 256.933203][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 256.941901][ T3077] node 1: slabs: 370, objs: 3848, free: 39 [ 256.947938][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 257.016698][ T1174] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 257.023017][ T23] node 0: slabs: 4517, objs: 54204, free: 0 [ 257.032296][ T1174] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 257.038532][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 257.056611][ T1174] node 0: slabs: 848, objs: 13568, free: 0 [ 257.062882][ T1174] node 1: slabs: 370, objs: 3848, free: 39 [ 257.071388][ T5209] Mem-Info: [ 257.074824][ T5209] active_anon:0 inactive_anon:1 isolated_anon:0 [ 257.074824][ T5209] active_file:53 inactive_file:11 isolated_file:30 [ 257.074824][ T5209] unevictable:768 dirty:0 writeback:0 [ 257.074824][ T5209] slab_reclaimable:16047 slab_unreclaimable:116026 [ 257.074824][ T5209] mapped:1 shmem:768 pagetables:301 bounce:0 [ 257.074824][ T5209] kernel_misc_reclaimable:0 [ 257.074824][ T5209] free:8042 free_pcp:95 free_cma:0 [ 257.115614][ T5209] Node 0 active_anon:0kB inactive_anon:4kB active_file:180kB inactive_file:80kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11152kB pagetables:1164kB all_unreclaimable? no [ 257.146406][ T5209] Node 1 active_anon:0kB inactive_anon:0kB active_file:120kB inactive_file:44kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:144kB pagetables:40kB all_unreclaimable? yes [ 257.273241][ T5209] Node 0 DMA free:10240kB min:204kB low:252kB high:300kB 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 [ 257.400881][ T5209] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 257.419417][ T5209] Node 0 DMA32 free:812kB min:34784kB low:43480kB high:52176kB reserved_highatomic:26624KB active_anon:0kB inactive_anon:4kB active_file:212kB inactive_file:40kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:936kB local_pcp:468kB free_cma:0kB [ 257.566662][ T5209] lowmem_reserve[]: 0 0 0 0 0 [ 257.571780][ T5209] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 257.736183][ T5209] lowmem_reserve[]: 0 0 0 0 0 [ 257.741318][ T5209] Node 1 Normal free:20604kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:116kB inactive_file:0kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 257.920022][ T5209] lowmem_reserve[]: 0 0 0 0 0 [ 257.924865][ T5209] Node 0 DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10240kB [ 257.948173][ T5209] Node 0 DMA32: 29*4kB (UME) 50*8kB (UME) 1*16kB (U) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 532kB [ 257.972433][ T5209] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 257.985030][ T5209] Node 1 Normal: 5*4kB (UME) 19*8kB (UME) 21*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20604kB [ 258.003238][ T5209] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 258.013691][ T5209] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 258.023277][ T5209] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 258.033284][ T5209] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 258.042953][ T5209] 868 total pagecache pages [ 258.048220][ T5209] 1 pages in swap cache [ 258.052413][ T5209] Swap cache stats: add 41420, delete 41419, find 241/936 [ 258.059825][ T5209] Free swap = 106260kB [ 258.064015][ T5209] Total swap = 124996kB [ 258.083494][ T5209] 2097051 pages RAM [ 258.088063][ T5209] 0 pages HighMem/MovableOnly [ 258.092803][ T5209] 411492 pages reserved [ 258.097567][ T5209] 0 pages cma reserved [ 258.102008][ T5209] Unreclaimable slab info: [ 258.106956][ T5209] Name Used Total [ 258.113420][ T5209] pid_2 18KB 18KB [ 258.119660][ T5209] bio-320 7KB 7KB [ 258.125870][ T5209] zswap_entry 3391KB 3391KB [ 258.142649][ T5209] batadv_tt_change_cache 8KB 8KB [ 258.154621][ T5209] batadv_tl_cache 8KB 8KB [ 258.171272][ T5209] TIPC 63KB 63KB [ 258.183134][ T5209] SCTPv6 63KB 63KB [ 258.235703][ T5209] DCCPv6 59KB 59KB [ 258.252326][ T5209] DCCP 61KB 61KB [ 258.266159][ T5209] RXRPC 61KB 61KB [ 258.272482][ T5209] rxrpc_call_jar 236KB 252KB [ 258.281074][ T5209] bridge_fdb_cache 19KB 19KB [ 258.287748][ T5209] MPTCPv6 61KB 61KB [ 258.294825][ T5209] fib6_nodes 192KB 192KB [ 258.304784][ T5209] ip6_dst_cache 256KB 528KB [ 258.312381][ T5209] RAWv6 146KB 246KB [ 258.320832][ T5209] UDPv6 128KB 128KB [ 258.332982][ T5209] tw_sock_TCPv6 7KB 7KB [ 258.365780][ T5209] TCPv6 95KB 95KB [ 258.372471][ T5209] nf_conntrack 39KB 39KB [ 258.380154][ T5209] wg_peer 152KB 152KB [ 258.386842][ T5209] allowedips_node 19KB 19KB [ 258.394078][ T5209] t10_alua_lu_gp_cache 3KB 3KB [ 258.400837][ T5209] sd_ext_cdb 3KB 3KB [ 258.408414][ T5209] scsi_sense_cache 1348KB 1348KB [ 258.415166][ T5209] virtio_scsi_cmd 16KB 16KB [ 258.422647][ T5209] bio-136 88KB 88KB [ 258.429129][ T5209] sgpool-128 29KB 29KB [ 258.435663][ T5209] sgpool-64 63KB 63KB [ 258.442589][ T5209] sgpool-32 294KB 378KB [ 258.449054][ T5209] sgpool-16 135KB 135KB [ 258.462582][ T5209] sgpool-8 93KB 93KB [ 258.477242][ T5209] bio-224 3KB 3KB [ 258.485448][ T5209] mqueue_inode_cache 60KB 60KB [ 258.503733][ T5209] f2fs_bio_post_read_ctx 16KB 16KB [ 258.513514][ T5209] jfs_mp 7KB 7KB [ 258.529097][ T5209] cifs_small_rq 16KB 16KB [ 258.542935][ T5209] cifs_request 67KB 67KB [ 258.553239][ T5209] cifs_mpx_ids 4KB 4KB [ 258.565987][ T5209] nfs_commit_data 15KB 15KB [ 258.572409][ T5209] nfs_write_data 47KB 47KB [ 258.600116][ T5209] jbd2_inode 7KB 7KB [ 258.615958][ T5209] ext4_system_zone 3KB 3KB [ 258.622257][ T5209] ext4_io_end_vec 7KB 7KB [ 258.643175][ T5209] ext4_bio_post_read_ctx 15KB 15KB [ 258.652152][ T5209] pid_namespace 7KB 7KB [ 258.665984][ T5209] rpc_buffers 31KB 31KB [ 258.672402][ T5209] rpc_tasks 3KB 3KB [ 258.689288][ T5209] UNIX-STREAM 384KB 384KB [ 258.695819][ T5209] UNIX 344KB 448KB [ 258.709394][ T5209] MPTCP 63KB 63KB [ 258.727093][ T5209] request_sock_subflow_v4 7KB 7KB [ 258.734110][ T5209] tcp_bind_bucket 8KB 8KB [ 258.750815][ T5209] ip_fib_trie 28KB 28KB [ 258.762531][ T5209] ip_fib_alias 106KB 106KB [ 258.774339][ T5209] ip_dst_cache 28KB 28KB [ 258.785348][ T5209] RAW 123KB 123KB [ 258.798940][ T5209] UDP 154KB 154KB [ 258.805543][ T5209] tw_sock_TCP 7KB 7KB [ 258.819338][ T5209] request_sock_TCP 15KB 15KB [ 258.825550][ T5209] TCP 60KB 60KB [ 258.838745][ T5209] hugetlbfs_inode_cache 30KB 30KB [ 258.845505][ T5209] fscache_cookie_jar 15KB 15KB [ 258.863352][ T5209] bio-256 11KB 11KB [ 258.877352][ T5209] ep_head 16KB 16KB [ 258.883490][ T5209] eventpoll_pwq 43KB 43KB [ 258.902318][ T5209] eventpoll_epi 78KB 78KB [ 258.916726][ T5209] inotify_inode_mark 19KB 19KB [ 258.923138][ T5209] bio_crypt_ctx 7KB 7KB [ 258.939885][ T5209] request_queue 584KB 769KB [ 258.951665][ T5209] blkdev_ioc 18KB 18KB [ 258.968900][ T5209] bio-200 304KB 337KB [ 258.989443][ T5209] biovec-max 386KB 386KB [ 259.014747][ T5209] biovec-64 515KB 582KB [ 259.031288][ T5209] biovec-16 78KB 78KB [ 259.059736][ T5209] bio_integrity_payload 3KB 3KB [ 259.079932][ T5209] user_namespace 15KB 15KB [ 259.112318][ T5209] uid_cache 7KB 7KB [ 259.136220][ T5209] dmaengine-unmap-256 30KB 30KB [ 259.143026][ T5209] dmaengine-unmap-128 15KB 15KB [ 259.211407][ T5209] dmaengine-unmap-16 4KB 4KB [ 259.235548][ T5209] dmaengine-unmap-2 4KB 4KB [ 259.275644][ T5209] QIPCRTR 31KB 31KB [ 259.319993][ T5209] audit_buffer 3KB 3KB [ 259.346686][ T5209] skbuff_ext_cache 48KB 48KB [ 259.353193][ T5209] skbuff_fclone_cache 210KB 247KB [ 259.413715][ T5209] skbuff_head_cache 20171KB 20182KB [ 259.446977][ T5209] configfs_dir_cache 8KB 8KB [ 259.468997][ T5209] file_lock_cache 90KB 90KB [ 259.475135][ T5209] file_lock_ctx 15KB 15KB [ 259.545963][ T5209] fsnotify_mark_connector 16KB 16KB [ 259.552816][ T5209] taskstats 15KB 15KB [ 259.614853][ T5209] proc_dir_entry 953KB 956KB [ 259.647273][ T5209] pde_opener 19KB 19KB [ 259.672246][ T5209] seq_file 56KB 75KB [ 259.698954][ T5209] sigqueue 129KB 149KB [ 259.705102][ T5209] shmem_inode_cache 7145KB 7244KB [ 259.755006][ T5209] kernfs_iattrs_cache 7KB 7KB [ 259.794613][ T5209] kernfs_node_cache 31028KB 31216KB [ 259.824637][ T5209] mnt_cache 206KB 220KB [ 259.849533][ T5209] filp 375KB 1012KB [ 259.855783][ T5209] names_cache 467KB 743KB [ 259.919672][ T5209] net_namespace 185KB 212KB [ 259.982231][ T5209] iint_cache 48KB 48KB [ 260.022951][ T5209] lsm_inode_cache 1790KB 1940KB [ 260.034493][ T5209] lsm_file_cache 202KB 334KB [ 260.047067][ T5209] key_jar 15KB 15KB [ 260.053749][ T5209] uts_namespace 15KB 15KB [ 260.068863][ T5209] nsproxy 19KB 19KB [ 260.075009][ T5209] vm_area_struct 542KB 727KB [ 260.088410][ T5209] fs_cache 108KB 108KB [ 260.094628][ T5209] files_cache 368KB 382KB [ 260.120580][ T5209] signal_cache 901KB 2099KB [ 260.176750][ T5209] sighand_cache 901KB 901KB [ 260.182908][ T5209] task_struct 2975KB 4224KB [ 260.249810][ T5209] cred_jar 165KB 416KB [ 260.280245][ T5209] anon_vma_chain 265KB 378KB [ 260.311480][ T5209] anon_vma 170KB 211KB [ 260.379590][ T5209] pid 138KB 356KB [ 260.385876][ T5209] Acpi-Operand 204KB 237KB [ 260.430802][ T5209] Acpi-ParseExt 23KB 23KB [ 260.465970][ T5209] Acpi-Parse 126KB 126KB [ 260.472489][ T5209] Acpi-State 196KB 232KB [ 260.524017][ T5209] Acpi-Namespace 28KB 28KB [ 260.551911][ T5209] numa_policy 3KB 3KB [ 260.584742][ T5209] perf_event 31KB 31KB [ 260.598947][ T5209] trace_event_file 432KB 432KB [ 260.605097][ T5209] ftrace_event_field 548KB 548KB [ 260.663313][ T5209] pool_workqueue 261KB 288KB [ 260.695976][ T5209] task_group 30KB 30KB [ 260.702326][ T5209] mm_struct 427KB 661KB [ 260.767024][ T5209] vmap_area 234KB 322KB [ 260.773922][ T5209] debug_objects_cache 1667KB 1720KB [ 260.817083][ T4222] Bluetooth: hci5: no memory for command (opcode 0x0406) [ 260.826517][ T4222] Bluetooth: hci5: failed to run HCI request: err -12 [ 260.836725][ T5209] page->ptl 124KB 224KB [ 260.843164][ T5209] kmalloc-cg-8k 2128KB 2128KB [ 260.900407][ T5209] kmalloc-cg-4k 4912KB 5320KB [ 260.955575][ T5209] kmalloc-cg-2k 1260KB 1284KB [ 260.986177][ T5209] kmalloc-cg-1k 868KB 1024KB [ 260.992421][ T5209] kmalloc-cg-512 2098KB 2148KB [ 261.048327][ T5209] kmalloc-cg-256 40KB 40KB [ 261.054838][ T5209] kmalloc-cg-192 164KB 164KB [ 261.123064][ T5209] kmalloc-cg-128 104KB 104KB [ 261.166106][ T5209] kmalloc-cg-96 20KB 20KB [ 261.202655][ T5209] kmalloc-cg-64 16KB 16KB [ 261.231161][ T5209] kmalloc-cg-32 20KB 20KB [ 261.270452][ T5209] kmalloc-cg-16 79KB 188KB [ 261.312699][ T5209] kmalloc-cg-8 31KB 31KB [ 261.335872][ T5209] kmalloc-8k 9488KB 9584KB [ 261.364073][ T5209] kmalloc-4k 206352KB 206432KB [ 261.400176][ T5209] kmalloc-2k 24960KB 28384KB [ 261.423823][ T5209] kmalloc-1k 34754KB 34832KB [ 261.448541][ T5209] kmalloc-512 36507KB 36520KB [ 261.485430][ T5209] kmalloc-256 4889KB 4944KB [ 261.492116][ T4327] warn_alloc: 8019 callbacks suppressed [ 261.492135][ T4327] kworker/0:9: page allocation failure: order:0, mode:0xa20(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0-1 [ 261.510798][ T4327] CPU: 0 PID: 4327 Comm: kworker/0:9 Not tainted syzkaller #0 [ 261.518448][ T4327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 261.528994][ T4327] Workqueue: events nsim_dev_trap_report_work [ 261.535426][ T4327] Call Trace: [ 261.538837][ T4327] [ 261.541834][ T4327] dump_stack_lvl+0x188/0x250 [ 261.546560][ T4327] ? rcu_lock_release+0x5/0x20 [ 261.551461][ T4327] ? show_regs_print_info+0x20/0x20 [ 261.557416][ T4327] ? load_image+0x400/0x400 [ 261.562177][ T4327] warn_alloc+0x243/0x320 [ 261.566648][ T4327] ? seqcount_lockdep_reader_access+0xce/0x190 [ 261.572943][ T4327] ? zone_watermark_ok_safe+0x240/0x240 [ 261.578537][ T4327] ? __cpuset_node_allowed+0x99/0x540 [ 261.584053][ T4327] ? wakeup_kswapd+0x46b/0x7a0 [ 261.589145][ T4327] __alloc_pages_slowpath+0x2844/0x28b0 [ 261.595160][ T4327] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 261.600965][ T4327] ? __alloc_pages+0x480/0x480 [ 261.605909][ T4327] ? prepare_alloc_pages+0x368/0x5f0 [ 261.611332][ T4327] __alloc_pages+0x340/0x480 [ 261.616231][ T4327] ? zone_statistics+0x170/0x170 [ 261.621411][ T4327] ? alloc_pages+0x438/0x550 [ 261.626139][ T4327] new_slab+0x2e6/0x4b0 [ 261.630480][ T4327] ___slab_alloc+0x80a/0xdd0 [ 261.635121][ T4327] ? __alloc_skb+0xf4/0x750 [ 261.639662][ T4327] kmem_cache_alloc_node+0x1c3/0x2d0 [ 261.645418][ T4327] ? __alloc_skb+0xf4/0x750 [ 261.650108][ T4327] __alloc_skb+0xf4/0x750 [ 261.654490][ T4327] nsim_dev_trap_report_work+0x2a1/0xb40 [ 261.660351][ T4327] ? read_lock_is_recursive+0x10/0x10 [ 261.665920][ T4327] ? _raw_spin_unlock_irq+0x1f/0x40 [ 261.671267][ T4327] process_one_work+0x85f/0x1010 [ 261.676267][ T4327] ? worker_detach_from_pool+0x240/0x240 [ 261.682028][ T4327] ? lockdep_hardirqs_off+0x70/0x100 [ 261.688031][ T4327] ? _raw_spin_lock_irq+0xb7/0xf0 [ 261.693703][ T4327] ? _raw_spin_lock_irqsave+0x100/0x100 [ 261.699668][ T4327] ? wq_worker_running+0x97/0x170 [ 261.705201][ T4327] worker_thread+0xaa6/0x1290 [ 261.709969][ T4327] kthread+0x436/0x520 [ 261.714093][ T4327] ? rcu_lock_release+0x20/0x20 [ 261.718988][ T4327] ? kthread_blkcg+0xd0/0xd0 [ 261.724270][ T4327] ret_from_fork+0x1f/0x30 [ 261.729468][ T4327] [ 261.735076][ T4327] Mem-Info: [ 261.738594][ T4327] active_anon:0 inactive_anon:1 isolated_anon:0 [ 261.738594][ T4327] active_file:87 inactive_file:8 isolated_file:0 [ 261.738594][ T4327] unevictable:768 dirty:0 writeback:0 [ 261.738594][ T4327] slab_reclaimable:16047 slab_unreclaimable:116383 [ 261.738594][ T4327] mapped:1 shmem:768 pagetables:301 bounce:0 [ 261.738594][ T4327] kernel_misc_reclaimable:0 [ 261.738594][ T4327] free:7666 free_pcp:121 free_cma:0 [ 261.779123][ T4327] Node 0 active_anon:0kB inactive_anon:4kB active_file:8kB inactive_file:136kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11152kB pagetables:1164kB all_unreclaimable? no [ 261.808999][ T4327] Node 1 active_anon:0kB inactive_anon:0kB active_file:140kB inactive_file:0kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:144kB pagetables:40kB all_unreclaimable? yes [ 261.840811][ T4327] Node 0 DMA free:9776kB min:204kB low:252kB high:300kB 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 [ 261.861325][ T5212] slab_out_of_memory: 4306 callbacks suppressed [ 261.861391][ T5212] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 261.868187][ T4327] lowmem_reserve[]: 0 2539 [ 261.874555][ T5212] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 261.883850][ T4327] 2540 2540 2540 [ 261.883894][ T4327] Node 0 DMA32 free:252kB min:34784kB low:43480kB high:52176kB reserved_highatomic:26624KB active_anon:0kB inactive_anon:4kB active_file:164kB inactive_file:436kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:616kB local_pcp:244kB free_cma:0kB [ 261.883975][ T4327] lowmem_reserve[]: 0 0 0 0 0 [ 261.888753][ T5212] node 0: slabs: 848, objs: 13568, free: 0 [ 261.900988][ T4327] Node 0 [ 261.904688][ T5212] node 1: slabs: 370, objs: 3848, free: 39 [ 261.935508][ T4327] Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 261.940880][ T9] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 261.946712][ T4327] lowmem_reserve[]: [ 261.949755][ T9] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 261.956285][ T4327] 0 0 0 [ 261.984960][ T9] node 0: slabs: 848, objs: 13568, free: 0 [ 261.992580][ T4327] 0 0 [ 261.992614][ T4327] Node 1 Normal free:20604kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:140kB inactive_file:0kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 261.992694][ T4327] lowmem_reserve[]: 0 0 0 0 0 [ 261.992752][ T4327] Node 0 DMA: 0*4kB 0*8kB [ 261.996850][ T9] node 1: slabs: 370, objs: 3848, free: 39 [ 262.007476][ T4327] 1*16kB [ 262.010655][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 262.016483][ T4327] (U) [ 262.019223][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 262.049767][ T4327] 0*32kB [ 262.055109][ T23] node 0: slabs: 4622, objs: 55464, free: 0 [ 262.059929][ T4327] 0*64kB [ 262.066384][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 262.069578][ T4327] 0*128kB [ 262.078415][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 262.082057][ T4327] 0*256kB 1*512kB (U) 1*1024kB [ 262.094748][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 262.098288][ T4327] (U) [ 262.105547][ T23] node 0: slabs: 4622, objs: 55464, free: 0 [ 262.108941][ T4327] 2*2048kB [ 262.115825][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 262.119290][ T4327] (UM) [ 262.128531][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 262.133876][ T4327] 1*4096kB [ 262.149788][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 262.149844][ T23] node 0: slabs: 4622, objs: 55464, free: 0 [ 262.149865][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 262.150107][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 262.152961][ T4327] (M) [ 262.160457][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 262.164082][ T4327] = 9744kB [ 262.170177][ T23] node 0: slabs: 4622, objs: 55464, free: 0 [ 262.173078][ T4327] Node 0 [ 262.182231][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 262.185365][ T4327] DMA32: 16*4kB (UME) 14*8kB (UME) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 176kB [ 262.267770][ T4327] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 262.280955][ T4327] Node 1 Normal: 5*4kB (UME) 19*8kB (UME) 21*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20604kB [ 262.296315][ T9] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 262.300756][ T4327] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 262.310771][ T9] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 262.320534][ T4327] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 262.331170][ T9] node 0: slabs: 848, objs: 13568, free: 0 [ 262.340887][ T4327] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 262.347226][ T9] node 1: slabs: 370, objs: 3848, free: 39 [ 262.356693][ T4327] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 262.356721][ T4327] 868 total pagecache pages [ 262.366305][ T1174] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 262.372127][ T4327] 1 pages in swap cache [ 262.372139][ T4327] Swap cache stats: add 41420, delete 41419, find 241/937 [ 262.372157][ T4327] Free swap = 106260kB [ 262.372167][ T4327] Total swap = 124996kB [ 262.372177][ T4327] 2097051 pages RAM [ 262.372187][ T4327] 0 pages HighMem/MovableOnly [ 262.372196][ T4327] 411492 pages reserved [ 262.372204][ T4327] 0 pages cma reserved [ 262.372216][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 262.372233][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 262.372256][ T4327] node 0: slabs: 4625, objs: 55500, free: 0 [ 262.372276][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 262.372317][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 262.372334][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 262.372356][ T4327] node 0: slabs: 4625, objs: 55500, free: 0 [ 262.372374][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 262.406453][ T5209] kmalloc-192 1126KB 1572KB [ 262.407126][ T1174] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 262.412171][ T5209] kmalloc-128 1644KB 2012KB [ 262.416876][ T1174] node 0: slabs: 848, objs: 13568, free: 0 [ 262.416901][ T1174] node 1: slabs: 370, objs: 3848, free: 39 [ 262.557844][ T5209] kmalloc-96 1247KB 1252KB [ 262.564049][ T5209] kmalloc-64 3105KB 3964KB [ 262.581377][ T5209] kmalloc-32 763KB 792KB [ 262.594338][ T5209] kmalloc-16 261KB 340KB [ 262.604314][ T5209] kmalloc-8 549KB 593KB [ 262.616077][ T5209] kmem_cache_node 207KB 208KB [ 262.622750][ T5209] kmem_cache 172KB 172KB [ 262.640182][ T5209] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/,task=udevd,pid=5209,uid=0 [ 262.676010][ T5209] Out of memory (oom_kill_allocating_task): Killed process 5209 (udevd) total-vm:11048kB, anon-rss:0kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:64kB oom_score_adj:0 [ 264.830769][ T28] oom_reaper: reaped process 5209 (udevd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 265.707507][ T154] kworker/u4:2 invoked oom-killer: gfp_mask=0x40cc0(GFP_KERNEL|__GFP_COMP), order=1, oom_score_adj=0 [ 265.765902][ T154] CPU: 0 PID: 154 Comm: kworker/u4:2 Not tainted syzkaller #0 [ 265.773737][ T154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 265.783917][ T154] Workqueue: netns cleanup_net [ 265.788733][ T154] Call Trace: [ 265.792042][ T154] [ 265.795017][ T154] dump_stack_lvl+0x188/0x250 [ 265.799735][ T154] ? show_regs_print_info+0x20/0x20 [ 265.805071][ T154] ? load_image+0x400/0x400 [ 265.809878][ T154] ? local_lock_release+0x170/0x170 [ 265.815146][ T154] ? __rwlock_init+0x140/0x140 [ 265.819965][ T154] dump_header+0xd4/0x770 [ 265.824340][ T154] oom_kill_process+0x20e/0x3d0 [ 265.829365][ T154] out_of_memory+0xdbe/0x1180 [ 265.834191][ T154] ? __alloc_pages+0x480/0x480 [ 265.839083][ T154] ? unreserve_highatomic_pageblock+0x363/0x4d0 [ 265.845454][ T154] ? unregister_oom_notifier+0x20/0x20 [ 265.851154][ T154] __alloc_pages_slowpath+0x1dc5/0x28b0 [ 265.856894][ T154] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 265.862761][ T154] ? prepare_alloc_pages+0x368/0x5f0 [ 265.868189][ T154] __alloc_pages+0x340/0x480 [ 265.872920][ T154] ? zone_statistics+0x170/0x170 [ 265.877916][ T154] new_slab+0x2e6/0x4b0 [ 265.882118][ T154] ___slab_alloc+0x80a/0xdd0 [ 265.886740][ T154] ? kobject_uevent_env+0x27a/0x890 [ 265.892197][ T154] kmem_cache_alloc_trace+0x1a5/0x2a0 [ 265.897612][ T154] ? kobject_uevent_env+0x27a/0x890 [ 265.902940][ T154] kobject_uevent_env+0x27a/0x890 [ 265.908711][ T154] ? kobject_uevent_env+0x2f4/0x890 [ 265.913979][ T154] netdev_queue_update_kobjects+0x1d7/0x3e0 [ 265.919952][ T154] netdev_register_kobject+0x273/0x320 [ 265.925611][ T154] register_netdevice+0x1042/0x1710 [ 265.930875][ T154] ? netif_stacked_transfer_operstate+0x200/0x200 [ 265.937462][ T154] ? __debugfs_create_file+0x476/0x510 [ 265.943064][ T154] nsim_create+0x32d/0x3e0 [ 265.947833][ T154] __nsim_dev_port_add+0x698/0xab0 [ 265.953097][ T154] ? nsim_dev_reload_destroy+0x240/0x240 [ 265.958788][ T154] ? __debugfs_create_file+0x476/0x510 [ 265.964320][ T154] nsim_dev_port_add_all+0x37/0x100 [ 265.969972][ T154] nsim_dev_reload_up+0x4a7/0x820 [ 265.975050][ T154] ? nsim_dev_reload_destroy+0x1e2/0x240 [ 265.980741][ T154] ? nsim_dev_reload_down+0x160/0x160 [ 265.986255][ T154] ? nsim_dev_reload_down+0x10f/0x160 [ 265.991852][ T154] devlink_reload+0x350/0x790 [ 265.996793][ T154] ? devlink_resources_validate+0xc0/0xc0 [ 266.003182][ T154] ? devlink_try_get+0x148/0x1c0 [ 266.008258][ T154] devlink_pernet_pre_exit+0x1aa/0x310 [ 266.013763][ T154] ? devlink_trap_policer_notify+0x160/0x160 [ 266.019792][ T154] ? nft_pernet+0x1c1/0x200 [ 266.024345][ T154] cleanup_net+0x591/0xba0 [ 266.028809][ T154] ? ops_free_list+0x330/0x330 [ 266.033627][ T154] ? _raw_spin_unlock_irq+0x1f/0x40 [ 266.038869][ T154] process_one_work+0x85f/0x1010 [ 266.043862][ T154] ? worker_detach_from_pool+0x240/0x240 [ 266.049640][ T154] ? lockdep_hardirqs_off+0x70/0x100 [ 266.055060][ T154] ? _raw_spin_lock_irq+0xb7/0xf0 [ 266.060129][ T154] ? _raw_spin_lock_irqsave+0x100/0x100 [ 266.065729][ T154] ? wq_worker_running+0x97/0x170 [ 266.070796][ T154] worker_thread+0xaa6/0x1290 [ 266.075551][ T154] kthread+0x436/0x520 [ 266.079747][ T154] ? rcu_lock_release+0x20/0x20 [ 266.084895][ T154] ? kthread_blkcg+0xd0/0xd0 [ 266.089874][ T154] ret_from_fork+0x1f/0x30 [ 266.094356][ T154] [ 266.603640][ T154] Mem-Info: [ 266.606944][ T154] active_anon:0 inactive_anon:1 isolated_anon:0 [ 266.606944][ T154] active_file:87 inactive_file:0 isolated_file:0 [ 266.606944][ T154] unevictable:768 dirty:0 writeback:0 [ 266.606944][ T154] slab_reclaimable:16047 slab_unreclaimable:116731 [ 266.606944][ T154] mapped:1 shmem:768 pagetables:287 bounce:0 [ 266.606944][ T154] kernel_misc_reclaimable:0 [ 266.606944][ T154] free:7414 free_pcp:85 free_cma:0 [ 266.801700][ T154] Node 0 active_anon:0kB inactive_anon:4kB active_file:116kB inactive_file:56kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11120kB pagetables:1108kB all_unreclaimable? no [ 266.866122][ T4327] slab_out_of_memory: 3816 callbacks suppressed [ 266.866145][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 266.879568][ T5212] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 266.882493][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 266.889550][ T5212] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 266.889580][ T5212] node 0: slabs: 848, objs: 13568, free: 0 [ 266.889603][ T5212] node 1: slabs: 370, objs: 3848, free: 39 [ 266.889720][ T144] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 266.889743][ T144] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 266.889766][ T144] node 0: slabs: 848, objs: 13568, free: 0 [ 266.900428][ T4327] node 0: slabs: 4721, objs: 56652, free: 0 [ 266.911012][ T144] node 1: slabs: 370, objs: 3848, free: 39 [ 266.916817][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 266.923083][ T3077] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 266.931884][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 266.941912][ T3077] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 266.948113][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 266.948139][ T4327] node 0: slabs: 4721, objs: 56652, free: 0 [ 266.948159][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 266.948202][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 266.954285][ T3077] node 0: slabs: 848, objs: 13568, free: 0 [ 266.960324][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 266.966404][ T3077] node 1: slabs: 370, objs: 3848, free: 39 [ 266.975306][ T4327] node 0: slabs: 4721, objs: 56652, free: 0 [ 266.985581][ T1174] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 266.993765][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 266.993810][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 266.993829][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 266.993854][ T4327] node 0: slabs: 4722, objs: 56664, free: 0 [ 266.993874][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 266.996071][ T1435] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 267.004826][ T1174] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 267.010926][ T1435] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 267.016895][ T1174] node 0: slabs: 848, objs: 13568, free: 0 [ 267.016925][ T1174] node 1: slabs: 370, objs: 3848, free: 39 [ 267.024921][ T1435] node 0: slabs: 848, objs: 13568, free: 0 [ 267.031177][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 267.041672][ T1435] node 1: slabs: 370, objs: 3848, free: 39 [ 267.047643][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 267.047671][ T23] node 0: slabs: 4723, objs: 56676, free: 0 [ 267.179983][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 267.186885][ T154] Node 1 active_anon:0kB inactive_anon:0kB active_file:88kB inactive_file:56kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:116kB pagetables:40kB all_unreclaimable? yes [ 267.216691][ T154] Node 0 DMA free:8688kB min:204kB low:252kB high:300kB 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 [ 267.243834][ T154] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 267.249753][ T154] Node 0 DMA32 free:212kB min:34784kB low:43480kB high:52176kB reserved_highatomic:24576KB active_anon:0kB inactive_anon:4kB active_file:384kB inactive_file:0kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:460kB local_pcp:240kB free_cma:0kB [ 267.295981][ T154] lowmem_reserve[]: 0 0 0 0 0 [ 267.301145][ T154] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 267.434332][ T154] lowmem_reserve[]: 0 0 0 0 0 [ 267.440041][ T154] Node 1 Normal free:20608kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:84kB inactive_file:12kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 267.469240][ T154] lowmem_reserve[]: 0 0 0 0 0 [ 267.474016][ T154] Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 1*32kB (U) 0*64kB 1*128kB (U) 1*256kB (U) 0*512kB 0*1024kB 2*2048kB (UM) 1*4096kB (M) = 8624kB [ 267.488049][ T154] Node 0 DMA32: 56*4kB (U) 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 232kB [ 267.501759][ T154] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 267.522357][ T154] Node 1 Normal: 8*4kB (UME) 20*8kB (UME) 22*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20640kB [ 267.549357][ T154] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 267.569695][ T154] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 267.579203][ T154] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 267.597424][ T154] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 267.606826][ T154] 868 total pagecache pages [ 267.611383][ T154] 1 pages in swap cache [ 267.615559][ T154] Swap cache stats: add 41420, delete 41419, find 241/937 [ 267.623163][ T154] Free swap = 106516kB [ 267.627549][ T154] Total swap = 124996kB [ 267.632164][ T154] 2097051 pages RAM [ 267.641475][ T154] 0 pages HighMem/MovableOnly [ 267.646288][ T154] 411492 pages reserved [ 267.650467][ T154] 0 pages cma reserved [ 267.654556][ T154] Unreclaimable slab info: [ 267.659180][ T154] Name Used Total [ 267.665715][ T154] pid_2 18KB 18KB [ 267.672813][ T154] bio-320 7KB 7KB [ 267.680323][ T154] zswap_entry 3391KB 3391KB [ 267.687188][ T154] batadv_tt_change_cache 8KB 8KB [ 267.693770][ T154] batadv_tl_cache 8KB 8KB [ 267.703202][ T154] TIPC 63KB 63KB [ 267.709454][ T154] SCTPv6 63KB 63KB [ 267.715587][ T154] DCCPv6 59KB 59KB [ 267.736003][ T154] DCCP 61KB 61KB [ 267.742304][ T154] RXRPC 61KB 61KB [ 267.764042][ T154] rxrpc_call_jar 236KB 252KB [ 267.780476][ T154] bridge_fdb_cache 19KB 19KB [ 267.792376][ T154] MPTCPv6 61KB 61KB [ 267.812078][ T154] fib6_nodes 192KB 192KB [ 267.819338][ T154] ip6_dst_cache 256KB 528KB [ 267.832172][ T154] RAWv6 146KB 246KB [ 267.843175][ T154] UDPv6 128KB 128KB [ 267.871459][ T154] tw_sock_TCPv6 7KB 7KB [ 267.897157][ T154] TCPv6 95KB 95KB [ 267.904165][ T154] nf_conntrack 39KB 39KB [ 267.954088][ T154] wg_peer 152KB 152KB [ 267.975983][ T154] allowedips_node 19KB 19KB [ 267.982160][ T154] t10_alua_lu_gp_cache 3KB 3KB [ 268.029054][ T154] sd_ext_cdb 3KB 3KB [ 268.035655][ T154] scsi_sense_cache 1348KB 1348KB [ 268.094250][ T154] virtio_scsi_cmd 16KB 16KB [ 268.120339][ T154] bio-136 88KB 88KB [ 268.144274][ T154] sgpool-128 29KB 29KB [ 268.168644][ T154] sgpool-64 63KB 63KB [ 268.175024][ T154] sgpool-32 294KB 378KB [ 268.232110][ T154] sgpool-16 135KB 135KB [ 268.264451][ T154] sgpool-8 93KB 93KB [ 268.291997][ T154] bio-224 3KB 3KB [ 268.309955][ T154] mqueue_inode_cache 60KB 60KB [ 268.377415][ T154] f2fs_bio_post_read_ctx 16KB 16KB [ 268.384286][ T154] jfs_mp 7KB 7KB [ 268.451096][ T154] cifs_small_rq 16KB 16KB [ 268.484965][ T154] cifs_request 67KB 67KB [ 268.510144][ T154] cifs_mpx_ids 4KB 4KB [ 268.542215][ T154] nfs_commit_data 15KB 15KB [ 268.575964][ T154] nfs_write_data 47KB 47KB [ 268.582547][ T154] jbd2_inode 7KB 7KB [ 268.621296][ T154] ext4_system_zone 3KB 3KB [ 268.656160][ T154] ext4_io_end_vec 7KB 7KB [ 268.662971][ T154] ext4_bio_post_read_ctx 15KB 15KB [ 268.723158][ T154] pid_namespace 7KB 7KB [ 268.764776][ T154] rpc_buffers 31KB 31KB [ 268.787478][ T154] rpc_tasks 3KB 3KB [ 268.793636][ T154] UNIX-STREAM 384KB 384KB [ 268.863130][ T154] UNIX 344KB 448KB [ 268.876684][ T154] MPTCP 63KB 63KB [ 268.915960][ T154] request_sock_subflow_v4 7KB 7KB [ 268.922738][ T154] tcp_bind_bucket 8KB 8KB [ 268.977079][ T154] ip_fib_trie 28KB 28KB [ 268.983224][ T154] ip_fib_alias 106KB 106KB [ 269.035965][ T154] ip_dst_cache 28KB 28KB [ 269.042612][ T154] RAW 123KB 123KB [ 269.096904][ T154] UDP 154KB 154KB [ 269.103145][ T154] tw_sock_TCP 7KB 7KB [ 269.146142][ T154] request_sock_TCP 15KB 15KB [ 269.152301][ T154] TCP 60KB 60KB [ 269.185207][ T154] hugetlbfs_inode_cache 30KB 30KB [ 269.199791][ T154] fscache_cookie_jar 15KB 15KB [ 269.229062][ T154] bio-256 11KB 11KB [ 269.270700][ T154] ep_head 16KB 16KB [ 269.327861][ T154] eventpoll_pwq 43KB 43KB [ 269.334012][ T154] eventpoll_epi 78KB 78KB [ 269.396034][ T154] inotify_inode_mark 19KB 19KB [ 269.402913][ T154] bio_crypt_ctx 7KB 7KB [ 269.438045][ T154] request_queue 584KB 769KB [ 269.444330][ T154] blkdev_ioc 18KB 18KB [ 269.474859][ T154] bio-200 304KB 337KB [ 269.496006][ T154] biovec-max 386KB 386KB [ 269.505273][ T154] biovec-64 515KB 582KB [ 269.525433][ T154] biovec-16 78KB 78KB [ 269.547399][ T154] bio_integrity_payload 3KB 3KB [ 269.554022][ T154] user_namespace 15KB 15KB [ 269.591085][ T154] uid_cache 7KB 7KB [ 269.610733][ T154] dmaengine-unmap-256 30KB 30KB [ 269.628142][ T154] dmaengine-unmap-128 15KB 15KB [ 269.634485][ T154] dmaengine-unmap-16 4KB 4KB [ 269.674051][ T154] dmaengine-unmap-2 4KB 4KB [ 269.689138][ T154] QIPCRTR 31KB 31KB [ 269.717964][ T154] audit_buffer 3KB 3KB [ 269.724223][ T154] skbuff_ext_cache 48KB 48KB [ 269.759127][ T154] skbuff_fclone_cache 210KB 247KB [ 269.765693][ T154] skbuff_head_cache 20963KB 20973KB [ 269.819345][ T154] configfs_dir_cache 8KB 8KB [ 269.825578][ T154] file_lock_cache 90KB 90KB [ 269.862107][ T154] file_lock_ctx 15KB 15KB [ 269.881676][ T154] fsnotify_mark_connector 16KB 16KB [ 269.892238][ T154] taskstats 15KB 15KB [ 269.907847][ T154] proc_dir_entry 953KB 956KB [ 269.914191][ T154] pde_opener 19KB 19KB [ 269.944128][ T154] seq_file 56KB 75KB [ 269.956749][ T154] sigqueue 129KB 149KB [ 269.996990][ T154] shmem_inode_cache 7145KB 7244KB [ 270.003167][ T154] kernfs_iattrs_cache 7KB 7KB [ 270.043862][ T154] kernfs_node_cache 31028KB 31216KB [ 270.062356][ T154] mnt_cache 206KB 220KB [ 270.077455][ T154] filp 375KB 1012KB [ 270.083875][ T154] names_cache 467KB 743KB [ 270.103991][ T154] net_namespace 185KB 212KB [ 270.124402][ T154] iint_cache 48KB 48KB [ 270.149155][ T154] lsm_inode_cache 1790KB 1940KB [ 270.175443][ T154] lsm_file_cache 202KB 334KB [ 270.191932][ T154] key_jar 15KB 15KB [ 270.212604][ T154] uts_namespace 15KB 15KB [ 270.232508][ T154] nsproxy 19KB 19KB [ 270.250777][ T154] vm_area_struct 542KB 727KB [ 270.307088][ T154] fs_cache 108KB 108KB [ 270.314446][ T154] files_cache 368KB 382KB [ 270.344042][ T154] signal_cache 901KB 2099KB [ 270.353572][ T154] sighand_cache 901KB 901KB [ 270.360682][ T154] task_struct 2975KB 4224KB [ 270.376012][ T154] cred_jar 165KB 416KB [ 270.382452][ T154] anon_vma_chain 265KB 378KB [ 270.402987][ T154] anon_vma 163KB 203KB [ 270.416047][ T154] pid 138KB 356KB [ 270.424693][ T154] Acpi-Operand 204KB 237KB [ 270.439164][ T154] Acpi-ParseExt 23KB 23KB [ 270.445726][ T154] Acpi-Parse 126KB 126KB [ 270.474461][ T154] Acpi-State 196KB 232KB [ 270.495496][ T154] Acpi-Namespace 28KB 28KB [ 270.516074][ T154] numa_policy 3KB 3KB [ 270.522439][ T154] perf_event 31KB 31KB [ 270.555490][ T154] trace_event_file 432KB 432KB [ 270.576236][ T154] ftrace_event_field 548KB 548KB [ 270.582577][ T154] pool_workqueue 261KB 288KB [ 270.603544][ T154] task_group 30KB 30KB [ 270.617491][ T154] mm_struct 427KB 661KB [ 270.623908][ T154] vmap_area 234KB 322KB [ 270.647580][ T154] debug_objects_cache 1667KB 1720KB [ 270.654082][ T154] page->ptl 124KB 224KB [ 270.691536][ T154] kmalloc-cg-8k 2128KB 2128KB [ 270.706679][ T154] kmalloc-cg-4k 4912KB 5320KB [ 270.721982][ T154] kmalloc-cg-2k 1260KB 1284KB [ 270.737996][ T154] kmalloc-cg-1k 868KB 1024KB [ 270.744348][ T154] kmalloc-cg-512 2098KB 2148KB [ 270.779356][ T154] kmalloc-cg-256 40KB 40KB [ 270.793873][ T154] kmalloc-cg-192 164KB 164KB [ 270.800326][ T154] kmalloc-cg-128 104KB 104KB [ 270.806643][ T154] kmalloc-cg-96 20KB 20KB [ 270.812756][ T154] kmalloc-cg-64 16KB 16KB [ 270.824136][ T154] kmalloc-cg-32 20KB 20KB [ 270.835560][ T154] kmalloc-cg-16 79KB 188KB [ 270.849094][ T154] kmalloc-cg-8 31KB 31KB [ 270.863036][ T154] kmalloc-8k 9488KB 9584KB [ 270.888688][ T154] kmalloc-4k 206352KB 206432KB [ 270.895066][ T154] kmalloc-2k 24960KB 28384KB [ 270.948919][ T154] kmalloc-1k 34754KB 34832KB [ 270.955152][ T154] kmalloc-512 38619KB 38632KB [ 270.992583][ T154] kmalloc-256 4889KB 4944KB [ 271.014396][ T154] kmalloc-192 1126KB 1572KB [ 271.046072][ T154] kmalloc-128 1644KB 2012KB [ 271.052323][ T154] kmalloc-96 1247KB 1252KB [ 271.086755][ T154] kmalloc-64 3105KB 3964KB [ 271.092986][ T154] kmalloc-32 783KB 792KB [ 271.125273][ T154] kmalloc-16 261KB 340KB [ 271.155965][ T154] kmalloc-8 549KB 593KB [ 271.162609][ T154] kmem_cache_node 207KB 208KB [ 271.214867][ T154] kmem_cache 172KB 172KB [ 271.255539][ T154] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/syz4,task=syz.4.21,pid=5075,uid=0 [ 271.303256][ T154] Out of memory: Killed process 5076 (syz.4.21) total-vm:44920kB, anon-rss:0kB, file-rss:4kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000 [ 271.501134][ T1174] warn_alloc: 7882 callbacks suppressed [ 271.501155][ T1174] kworker/u4:3: page allocation failure: order:0, mode:0xa20(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0-1 [ 271.545371][ T1174] CPU: 1 PID: 1174 Comm: kworker/u4:3 Not tainted syzkaller #0 [ 271.553188][ T1174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 271.563281][ T1174] Workqueue: bat_events batadv_mcast_mla_update [ 271.569924][ T1174] Call Trace: [ 271.573230][ T1174] [ 271.576278][ T1174] dump_stack_lvl+0x188/0x250 [ 271.581183][ T1174] ? rcu_lock_release+0x5/0x20 [ 271.585981][ T1174] ? show_regs_print_info+0x20/0x20 [ 271.591231][ T1174] ? load_image+0x400/0x400 [ 271.595782][ T1174] warn_alloc+0x243/0x320 [ 271.600153][ T1174] ? zone_watermark_ok_safe+0x240/0x240 [ 271.605834][ T1174] ? __cpuset_node_allowed+0x99/0x540 [ 271.611246][ T1174] ? wakeup_kswapd+0x210/0x7a0 [ 271.616054][ T1174] __alloc_pages_slowpath+0x2844/0x28b0 [ 271.621676][ T1174] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 271.627627][ T1174] ? __alloc_pages+0x480/0x480 [ 271.632441][ T1174] ? prepare_alloc_pages+0x368/0x5f0 [ 271.637782][ T1174] __alloc_pages+0x340/0x480 [ 271.642408][ T1174] ? zone_statistics+0x170/0x170 [ 271.647378][ T1174] ? mark_lock+0x94/0x320 [ 271.651749][ T1174] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 271.657940][ T1174] ? alloc_pages+0x438/0x550 [ 271.662574][ T1174] new_slab+0x2e6/0x4b0 [ 271.667046][ T1174] ___slab_alloc+0x80a/0xdd0 [ 271.672111][ T1174] ? batadv_mcast_mla_update+0x13af/0x3150 [ 271.677976][ T1174] kmem_cache_alloc_trace+0x1a5/0x2a0 [ 271.683723][ T1174] ? batadv_mcast_mla_update+0x13af/0x3150 [ 271.689572][ T1174] batadv_mcast_mla_update+0x13af/0x3150 [ 271.695451][ T1174] ? batadv_mcast_tvlv_ogm_handler+0x230/0x230 [ 271.701772][ T1174] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 271.707798][ T1174] ? read_lock_is_recursive+0x10/0x10 [ 271.713210][ T1174] ? _raw_spin_unlock_irq+0x1f/0x40 [ 271.718648][ T1174] process_one_work+0x85f/0x1010 [ 271.724485][ T1174] ? worker_detach_from_pool+0x240/0x240 [ 271.730293][ T1174] ? lockdep_hardirqs_off+0x70/0x100 [ 271.735886][ T1174] ? _raw_spin_lock_irq+0xb7/0xf0 [ 271.740996][ T1174] ? _raw_spin_lock_irqsave+0x100/0x100 [ 271.746755][ T1174] ? wq_worker_running+0x97/0x170 [ 271.752032][ T1174] worker_thread+0xaa6/0x1290 [ 271.756935][ T1174] ? lockdep_hardirqs_on+0x94/0x140 [ 271.762183][ T1174] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 271.768125][ T1174] kthread+0x436/0x520 [ 271.772317][ T1174] ? rcu_lock_release+0x20/0x20 [ 271.777293][ T1174] ? kthread_blkcg+0xd0/0xd0 [ 271.782007][ T1174] ret_from_fork+0x1f/0x30 [ 271.786478][ T1174] [ 271.794354][ T1174] Mem-Info: [ 271.797657][ T1174] active_anon:0 inactive_anon:1 isolated_anon:0 [ 271.797657][ T1174] active_file:0 inactive_file:49 isolated_file:12 [ 271.797657][ T1174] unevictable:768 dirty:0 writeback:0 [ 271.797657][ T1174] slab_reclaimable:16047 slab_unreclaimable:117145 [ 271.797657][ T1174] mapped:1 shmem:768 pagetables:252 bounce:0 [ 271.797657][ T1174] kernel_misc_reclaimable:0 [ 271.797657][ T1174] free:7075 free_pcp:5 free_cma:0 [ 271.839049][ T1174] Node 0 active_anon:0kB inactive_anon:4kB active_file:188kB inactive_file:0kB unevictable:1536kB isolated(anon):0kB isolated(file):48kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11056kB pagetables:968kB all_unreclaimable? no [ 271.886076][ T4327] slab_out_of_memory: 4237 callbacks suppressed [ 271.886097][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 271.896405][ T1435] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 271.902455][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 271.909761][ T1435] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 271.909788][ T1435] node 0: slabs: 848, objs: 13568, free: 0 [ 271.909808][ T1435] node 1: slabs: 370, objs: 3848, free: 39 [ 271.909938][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 271.920971][ T4327] node 0: slabs: 4828, objs: 57936, free: 0 [ 271.931427][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 271.938296][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 271.944387][ T23] node 0: slabs: 4828, objs: 57936, free: 0 [ 271.952848][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 271.952877][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 271.952899][ T4327] node 0: slabs: 4828, objs: 57936, free: 0 [ 271.952918][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 271.959352][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 271.970600][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 271.976709][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 271.983119][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 271.991598][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 272.002487][ T4327] node 0: slabs: 4828, objs: 57936, free: 0 [ 272.002515][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 272.002560][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 272.002579][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 272.002600][ T4327] node 0: slabs: 4829, objs: 57948, free: 0 [ 272.002617][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 272.002705][ T9] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 272.002725][ T9] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 272.002748][ T9] node 0: slabs: 848, objs: 13568, free: 0 [ 272.002764][ T9] node 1: slabs: 370, objs: 3848, free: 39 [ 272.002841][ T9] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 272.002861][ T9] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 272.002883][ T9] node 0: slabs: 848, objs: 13568, free: 0 [ 272.002902][ T9] node 1: slabs: 370, objs: 3848, free: 39 [ 272.002971][ T9] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 272.002991][ T9] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 272.003013][ T9] node 0: slabs: 848, objs: 13568, free: 0 [ 272.003031][ T9] node 1: slabs: 370, objs: 3848, free: 39 [ 272.202893][ T23] node 0: slabs: 4832, objs: 57984, free: 0 [ 272.209254][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 272.216392][ T1174] Node 1 active_anon:0kB inactive_anon:0kB active_file:80kB inactive_file:52kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:112kB pagetables:40kB all_unreclaimable? yes [ 272.275961][ T1174] Node 0 DMA free:7532kB min:204kB low:252kB high:300kB 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 [ 272.345947][ T1174] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 272.351793][ T1174] Node 0 DMA32 free:260kB min:34784kB low:43480kB high:52176kB reserved_highatomic:24576KB active_anon:0kB inactive_anon:4kB active_file:136kB inactive_file:128kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:236kB local_pcp:236kB free_cma:0kB [ 272.399558][ T1174] lowmem_reserve[]: 0 0 0 0 0 [ 272.404361][ T1174] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 272.431357][ T1174] lowmem_reserve[]: 0 0 0 0 0 [ 272.436173][ T1174] Node 1 Normal free:20648kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:80kB inactive_file:52kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 272.465443][ T1174] lowmem_reserve[]: 0 0 0 0 0 [ 272.470254][ T1174] Node 0 DMA: 0*4kB 0*8kB 1*16kB (U) 1*32kB (U) 0*64kB 0*128kB 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 1*4096kB (M) = 7472kB [ 272.484230][ T1174] Node 0 DMA32: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 272.495836][ T1174] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 272.507507][ T1174] Node 1 Normal: 8*4kB (UME) 21*8kB (UME) 22*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20648kB [ 272.526924][ T1174] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 272.536761][ T1174] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 272.546257][ T1174] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 272.555995][ T1174] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 272.565405][ T1174] 868 total pagecache pages [ 272.570001][ T1174] 1 pages in swap cache [ 272.574186][ T1174] Swap cache stats: add 41420, delete 41419, find 241/937 [ 272.586651][ T1174] Free swap = 106516kB [ 272.590867][ T1174] Total swap = 124996kB [ 272.595326][ T1174] 2097051 pages RAM [ 272.599329][ T1174] 0 pages HighMem/MovableOnly [ 272.604264][ T1174] 411492 pages reserved [ 272.616318][ T1174] 0 pages cma reserved [ 273.464361][ T28] oom_reaper: reaped process 5076 (syz.4.21), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 273.490394][ T4622] sshd-session invoked oom-killer: gfp_mask=0x1100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0 [ 273.501751][ T4622] CPU: 0 PID: 4622 Comm: sshd-session Not tainted syzkaller #0 [ 273.509526][ T4622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 273.519839][ T4622] Call Trace: [ 273.523153][ T4622] [ 273.526115][ T4622] dump_stack_lvl+0x188/0x250 [ 273.530861][ T4622] ? show_regs_print_info+0x20/0x20 [ 273.536332][ T4622] ? load_image+0x400/0x400 [ 273.540943][ T4622] ? local_lock_release+0x170/0x170 [ 273.546337][ T4622] ? __rwlock_init+0x140/0x140 [ 273.551233][ T4622] dump_header+0xd4/0x770 [ 273.555643][ T4622] oom_kill_process+0x20e/0x3d0 [ 273.560623][ T4622] out_of_memory+0xedc/0x1180 [ 273.565355][ T4622] ? __alloc_pages+0x480/0x480 [ 273.570241][ T4622] ? unreserve_highatomic_pageblock+0x363/0x4d0 [ 273.576884][ T4622] ? unregister_oom_notifier+0x20/0x20 [ 273.583018][ T4622] __alloc_pages_slowpath+0x1dc5/0x28b0 [ 273.588648][ T4622] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 273.594505][ T4622] ? prepare_alloc_pages+0x368/0x5f0 [ 273.600050][ T4622] __alloc_pages+0x340/0x480 [ 273.604778][ T4622] ? zone_statistics+0x170/0x170 [ 273.609805][ T4622] ? __lock_acquire+0x7d10/0x7d10 [ 273.615079][ T4622] ? __rwlock_init+0x140/0x140 [ 273.619973][ T4622] alloc_pages_vma+0x393/0x7c0 [ 273.624949][ T4622] ? __swp_swapcount+0xf5/0x120 [ 273.629842][ T4622] __read_swap_cache_async+0x1b5/0xa70 [ 273.635446][ T4622] swap_cluster_readahead+0x6a3/0x7c0 [ 273.640972][ T4622] ? read_swap_cache_async+0x90/0x90 [ 273.646405][ T4622] swapin_readahead+0xf1/0xac0 [ 273.651215][ T4622] ? rcu_lock_release+0x5/0x20 [ 273.656157][ T4622] ? __lock_acquire+0x7d10/0x7d10 [ 273.661415][ T4622] ? exit_swap_address_space+0x280/0x280 [ 273.667643][ T4622] ? put_swap_device+0x15c/0x200 [ 273.672760][ T4622] ? lookup_swap_cache+0x135/0x440 [ 273.677912][ T4622] ? get_swap_device+0x21b/0x360 [ 273.683350][ T4622] do_swap_page+0x4b6/0x1f40 [ 273.687986][ T4622] ? count_memcg_event_mm+0x324/0x370 [ 273.693607][ T4622] handle_mm_fault+0x1b16/0x4410 [ 273.698947][ T4622] ? get_page+0xe0/0xe0 [ 273.703153][ T4622] ? vmacache_find+0x53c/0x590 [ 273.707952][ T4622] ? vmacache_update+0xa0/0x100 [ 273.712841][ T4622] ? find_vma+0x1df/0x230 [ 273.717217][ T4622] do_user_addr_fault+0x489/0xc80 [ 273.722295][ T4622] exc_page_fault+0x60/0x100 [ 273.727037][ T4622] asm_exc_page_fault+0x22/0x30 [ 273.731926][ T4622] RIP: 0010:do_sys_poll+0xf56/0x11a0 [ 273.737279][ T4622] Code: 8b 74 24 30 4c 8d 76 12 48 8b 54 24 68 48 83 c2 06 45 31 ff 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 75 2b 42 0f b7 44 fe 12 <66> 89 02 49 89 d4 44 39 fb 74 3b e8 9a df aa ff 49 ff c7 49 83 c6 [ 273.756924][ T4622] RSP: 0000:ffffc900034bf8a0 EFLAGS: 00050246 [ 273.763031][ T4622] RAX: 0000000000000011 RBX: 0000000000000000 RCX: ffff88802c071dc0 [ 273.771206][ T4622] RDX: 00007fff58748196 RSI: ffffc900034bfcb0 RDI: 0000000000000000 [ 273.779212][ T4622] RBP: ffffc900034bfe50 R08: ffff88802ac40f7f R09: 1ffff110055881ef [ 273.787222][ T4622] R10: dffffc0000000000 R11: ffffed10055881f0 R12: 00007fff58748198 [ 273.795401][ T4622] R13: dffffc0000000000 R14: ffffc900034bfcc2 R15: 0000000000000000 [ 273.803706][ T4622] ? do_sys_poll+0x6f1/0x11a0 [ 273.808441][ T4622] ? poll_select_finish+0x620/0x620 [ 273.813801][ T4622] ? lock_page_memcg+0x1ae/0x440 [ 273.818784][ T4622] ? __ia32_compat_sys_ppoll_time64+0x320/0x320 [ 273.825488][ T4622] ? verify_lock_unused+0x140/0x140 [ 273.831080][ T4622] ? do_wp_page+0x902/0xad0 [ 273.835752][ T4622] ? __lock_acquire+0x7d10/0x7d10 [ 273.840824][ T4622] __se_sys_poll+0x12d/0x330 [ 273.845461][ T4622] ? __x64_sys_poll+0x80/0x80 [ 273.850266][ T4622] ? lockdep_hardirqs_on+0x94/0x140 [ 273.855596][ T4622] do_syscall_64+0x4c/0xa0 [ 273.860053][ T4622] ? clear_bhb_loop+0x30/0x80 [ 273.864768][ T4622] ? clear_bhb_loop+0x30/0x80 [ 273.869750][ T4622] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 273.875855][ T4622] RIP: 0033:0x7f8c2d5ea407 [ 273.880395][ T4622] Code: Unable to access opcode bytes at RIP 0x7f8c2d5ea3dd. [ 273.887923][ T4622] RSP: 002b:00007fff58748120 EFLAGS: 00000202 ORIG_RAX: 0000000000000007 [ 273.896373][ T4622] RAX: ffffffffffffffda RBX: 00007f8c2d4f6300 RCX: 00007f8c2d5ea407 [ 273.904379][ T4622] RDX: ffffffffffffffff RSI: 0000000000000001 RDI: 00007fff58748190 [ 273.912487][ T4622] RBP: 0000556ca41f11a0 R08: 0000000000000000 R09: 0000000000000000 [ 273.920755][ T4622] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff58748190 [ 273.928877][ T4622] R13: 0000000000000000 R14: 0000556ce20149a0 R15: 000000000000120f [ 273.936912][ T4622] [ 274.292369][ T4622] Mem-Info: [ 274.295763][ T4622] active_anon:0 inactive_anon:1 isolated_anon:0 [ 274.295763][ T4622] active_file:53 inactive_file:6 isolated_file:3 [ 274.295763][ T4622] unevictable:768 dirty:0 writeback:0 [ 274.295763][ T4622] slab_reclaimable:16047 slab_unreclaimable:117315 [ 274.295763][ T4622] mapped:1 shmem:768 pagetables:252 bounce:0 [ 274.295763][ T4622] kernel_misc_reclaimable:0 [ 274.295763][ T4622] free:6935 free_pcp:152 free_cma:0 [ 274.336395][ T4622] Node 0 active_anon:0kB inactive_anon:4kB active_file:204kB inactive_file:32kB unevictable:1536kB isolated(anon):0kB isolated(file):12kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11056kB pagetables:968kB all_unreclaimable? yes [ 274.367768][ T4622] Node 1 active_anon:0kB inactive_anon:0kB active_file:8kB inactive_file:0kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:112kB pagetables:40kB all_unreclaimable? yes [ 274.468299][ T4622] Node 0 DMA free:7076kB min:204kB low:252kB high:300kB 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 [ 274.518392][ T4622] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 274.524376][ T4622] Node 0 DMA32 free:8kB min:34784kB low:43480kB high:52176kB reserved_highatomic:24576KB active_anon:0kB inactive_anon:4kB active_file:180kB inactive_file:0kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:560kB local_pcp:248kB free_cma:0kB [ 274.561623][ T4622] lowmem_reserve[]: 0 0 0 0 0 [ 274.566503][ T4622] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 274.592679][ T4622] lowmem_reserve[]: 0 0 0 0 0 [ 274.597488][ T4622] Node 1 Normal free:20656kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:52kB inactive_file:92kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 274.627824][ T4622] lowmem_reserve[]: 0 0 0 0 0 [ 274.632613][ T4622] Node 0 DMA: 1*4kB (U) 0*8kB 1*16kB (U) 0*32kB 0*64kB 1*128kB (U) 1*256kB (U) 1*512kB (U) 0*1024kB 1*2048kB (M) 1*4096kB (M) = 7060kB [ 274.660408][ T4622] Node 0 DMA32: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB [ 274.672325][ T4622] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 274.685582][ T4622] Node 1 Normal: 10*4kB (UME) 21*8kB (UME) 22*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20656kB [ 274.702701][ T4622] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 274.712466][ T4622] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 274.721851][ T4622] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 274.731517][ T4622] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 274.742616][ T4622] 868 total pagecache pages [ 274.747251][ T4622] 1 pages in swap cache [ 274.751446][ T4622] Swap cache stats: add 41420, delete 41419, find 241/937 [ 274.758711][ T4622] Free swap = 107796kB [ 274.764100][ T4622] Total swap = 124996kB [ 274.768380][ T4622] 2097051 pages RAM [ 274.772210][ T4622] 0 pages HighMem/MovableOnly [ 274.776987][ T4622] 411492 pages reserved [ 274.785408][ T4622] 0 pages cma reserved [ 274.794927][ T4622] Unreclaimable slab info: [ 274.812144][ T4622] Name Used Total [ 274.819357][ T4622] pid_2 18KB 18KB [ 274.825619][ T4622] bio-320 7KB 7KB [ 274.834691][ T4622] zswap_entry 3391KB 3391KB [ 274.841434][ T4622] batadv_tt_change_cache 8KB 8KB [ 274.849554][ T4622] batadv_tl_cache 8KB 8KB [ 274.856170][ T4622] TIPC 63KB 63KB [ 274.862603][ T4622] SCTPv6 63KB 63KB [ 274.870475][ T4622] DCCPv6 59KB 59KB [ 274.876788][ T4622] DCCP 61KB 61KB [ 274.882941][ T4622] RXRPC 61KB 61KB [ 274.889222][ T4622] rxrpc_call_jar 236KB 252KB [ 274.895454][ T4622] bridge_fdb_cache 19KB 19KB [ 274.923722][ T4622] MPTCPv6 61KB 61KB [ 274.950068][ T4622] fib6_nodes 192KB 192KB [ 274.988501][ T4622] ip6_dst_cache 256KB 528KB [ 274.994774][ T4622] RAWv6 146KB 246KB [ 275.025073][ T4622] UDPv6 128KB 128KB [ 275.046042][ T4622] tw_sock_TCPv6 7KB 7KB [ 275.052362][ T4622] TCPv6 95KB 95KB [ 275.086669][ T4622] nf_conntrack 39KB 39KB [ 275.109470][ T4622] wg_peer 152KB 152KB [ 275.115636][ T4622] allowedips_node 19KB 19KB [ 275.179906][ T4622] t10_alua_lu_gp_cache 3KB 3KB [ 275.210486][ T4622] sd_ext_cdb 3KB 3KB [ 275.238419][ T4622] scsi_sense_cache 1348KB 1348KB [ 275.244792][ T4622] virtio_scsi_cmd 16KB 16KB [ 275.295230][ T4622] bio-136 88KB 88KB [ 275.315984][ T4622] sgpool-128 29KB 29KB [ 275.322259][ T4622] sgpool-64 63KB 63KB [ 275.351559][ T4622] sgpool-32 294KB 378KB [ 275.365580][ T4622] sgpool-16 135KB 135KB [ 275.404892][ T4622] sgpool-8 93KB 93KB [ 275.433069][ T4622] bio-224 3KB 3KB [ 275.451647][ T4622] mqueue_inode_cache 60KB 60KB [ 275.462846][ T4622] f2fs_bio_post_read_ctx 16KB 16KB [ 275.476854][ T4622] jfs_mp 7KB 7KB [ 275.502377][ T4622] cifs_small_rq 16KB 16KB [ 275.519000][ T4622] cifs_request 67KB 67KB [ 275.525222][ T4622] cifs_mpx_ids 4KB 4KB [ 275.572136][ T4622] nfs_commit_data 15KB 15KB [ 275.598132][ T4622] nfs_write_data 47KB 47KB [ 275.625006][ T4622] jbd2_inode 7KB 7KB [ 275.643555][ T4622] ext4_system_zone 3KB 3KB [ 275.669781][ T4622] ext4_io_end_vec 7KB 7KB [ 275.708467][ T4622] ext4_bio_post_read_ctx 15KB 15KB [ 275.715083][ T4622] pid_namespace 7KB 7KB [ 275.769824][ T4622] rpc_buffers 31KB 31KB [ 275.796434][ T4622] rpc_tasks 3KB 3KB [ 275.802581][ T4622] UNIX-STREAM 384KB 384KB [ 275.852990][ T4622] UNIX 344KB 448KB [ 275.866766][ T4622] MPTCP 63KB 63KB [ 275.872898][ T4622] request_sock_subflow_v4 7KB 7KB [ 275.931238][ T4622] tcp_bind_bucket 8KB 8KB [ 275.976329][ T4622] ip_fib_trie 28KB 28KB [ 275.982653][ T4622] ip_fib_alias 106KB 106KB [ 276.015962][ T4622] ip_dst_cache 28KB 28KB [ 276.022106][ T4622] RAW 123KB 123KB [ 276.047282][ T4622] UDP 154KB 154KB [ 276.053419][ T4622] tw_sock_TCP 7KB 7KB [ 276.072531][ T4622] request_sock_TCP 15KB 15KB [ 276.086289][ T4622] TCP 60KB 60KB [ 276.092525][ T4622] hugetlbfs_inode_cache 30KB 30KB [ 276.115881][ T4622] fscache_cookie_jar 15KB 15KB [ 276.175574][ T4622] bio-256 11KB 11KB [ 276.206729][ T4622] ep_head 16KB 16KB [ 276.212874][ T4622] eventpoll_pwq 43KB 43KB [ 276.259767][ T4622] eventpoll_epi 78KB 78KB [ 276.278833][ T4622] inotify_inode_mark 19KB 19KB [ 276.285235][ T4622] bio_crypt_ctx 7KB 7KB [ 276.318892][ T4622] request_queue 584KB 769KB [ 276.325211][ T4622] blkdev_ioc 18KB 18KB [ 276.378567][ T4622] bio-200 304KB 337KB [ 276.386865][ T4622] biovec-max 386KB 386KB [ 276.415971][ T4622] biovec-64 515KB 582KB [ 276.422115][ T4622] biovec-16 78KB 78KB [ 276.472291][ T4622] bio_integrity_payload 3KB 3KB [ 276.501365][ T4622] user_namespace 15KB 15KB [ 276.534397][ T4622] uid_cache 7KB 7KB [ 276.564430][ T4622] dmaengine-unmap-256 30KB 30KB [ 276.594263][ T4622] dmaengine-unmap-128 15KB 15KB [ 276.613204][ T4622] dmaengine-unmap-16 4KB 4KB [ 276.635930][ T4622] dmaengine-unmap-2 4KB 4KB [ 276.642257][ T4622] QIPCRTR 31KB 31KB [ 276.689048][ T4622] audit_buffer 3KB 3KB [ 276.695206][ T4622] skbuff_ext_cache 48KB 48KB [ 276.751883][ T4622] skbuff_fclone_cache 210KB 247KB [ 276.765451][ T4622] skbuff_head_cache 21495KB 21506KB [ 276.791317][ T4622] configfs_dir_cache 8KB 8KB [ 276.825011][ T4622] file_lock_cache 90KB 90KB [ 276.855323][ T4622] file_lock_ctx 15KB 15KB [ 276.882299][ T4622] fsnotify_mark_connector 16KB 16KB [ 276.897726][ T4622] taskstats 15KB 15KB [ 276.903858][ T4622] proc_dir_entry 953KB 956KB [ 276.910131][ T23] slab_out_of_memory: 4281 callbacks suppressed [ 276.910151][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 276.914464][ T1174] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 276.918174][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 276.924819][ T1174] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 276.934603][ T23] node 0: slabs: 4929, objs: 59148, free: 0 [ 276.944831][ T1174] node 0: slabs: 848, objs: 13568, free: 0 [ 276.954861][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 276.961396][ T1174] node 1: slabs: 370, objs: 3848, free: 39 [ 276.967229][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 276.973689][ T144] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 276.979773][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 276.979797][ T23] node 0: slabs: 4929, objs: 59148, free: 0 [ 276.979816][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 276.987887][ T144] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 276.997086][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 277.007702][ T144] node 0: slabs: 848, objs: 13568, free: 0 [ 277.013949][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 277.021912][ T144] node 1: slabs: 370, objs: 3848, free: 39 [ 277.030184][ T23] node 0: slabs: 4930, objs: 59160, free: 0 [ 277.030207][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 277.030248][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 277.030268][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 277.030291][ T23] node 0: slabs: 4930, objs: 59160, free: 0 [ 277.030308][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 277.046203][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 277.057657][ T3077] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 277.061539][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 277.067731][ T3077] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 277.073660][ T4327] node 0: slabs: 4931, objs: 59172, free: 0 [ 277.081958][ T3077] node 0: slabs: 848, objs: 13568, free: 0 [ 277.092515][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 277.092617][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 277.098651][ T3077] node 1: slabs: 370, objs: 3848, free: 39 [ 277.104646][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 277.156135][ T4622] pde_opener 19KB 19KB [ 277.161695][ T4327] node 0: slabs: 4932, objs: 59184, free: 0 [ 277.196071][ T4622] seq_file 56KB 75KB [ 277.199431][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 277.205521][ T4622] sigqueue 129KB 149KB [ 277.211572][ T4327] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 277.211595][ T4327] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 277.236860][ T4327] node 0: slabs: 4933, objs: 59196, free: 0 [ 277.243156][ T4327] node 1: slabs: 810, objs: 9720, free: 34 [ 277.325990][ T4622] shmem_inode_cache 7145KB 7244KB [ 277.332143][ T4622] kernfs_iattrs_cache 7KB 7KB [ 277.411217][ T4622] kernfs_node_cache 31028KB 31216KB [ 277.419007][ T4622] mnt_cache 206KB 220KB [ 277.435977][ T4622] filp 375KB 1012KB [ 277.442159][ T4622] names_cache 467KB 743KB [ 277.468436][ T4622] net_namespace 185KB 212KB [ 277.474582][ T4622] iint_cache 48KB 48KB [ 277.490781][ T4622] lsm_inode_cache 1790KB 1940KB [ 277.503686][ T4622] lsm_file_cache 202KB 334KB [ 277.515173][ T4622] key_jar 15KB 15KB [ 277.529403][ T4622] uts_namespace 15KB 15KB [ 277.535569][ T4622] nsproxy 19KB 19KB [ 277.556099][ T4622] vm_area_struct 542KB 727KB [ 277.562378][ T4622] fs_cache 108KB 108KB [ 277.581804][ T4622] files_cache 368KB 382KB [ 277.596023][ T4622] signal_cache 901KB 2099KB [ 277.623240][ T4622] sighand_cache 901KB 901KB [ 277.656867][ T4622] task_struct 2975KB 4224KB [ 277.663062][ T4622] cred_jar 165KB 416KB [ 277.715975][ T4622] anon_vma_chain 265KB 378KB [ 277.722142][ T4622] anon_vma 163KB 203KB [ 277.760522][ T4622] pid 138KB 356KB [ 277.776879][ T4622] Acpi-Operand 204KB 237KB [ 277.783165][ T4622] Acpi-ParseExt 23KB 23KB [ 277.808403][ T4622] Acpi-Parse 126KB 126KB [ 277.814869][ T4622] Acpi-State 196KB 232KB [ 277.865310][ T4622] Acpi-Namespace 28KB 28KB [ 277.880421][ T4622] numa_policy 3KB 3KB [ 277.890298][ T4622] perf_event 31KB 31KB [ 277.903683][ T4622] trace_event_file 432KB 432KB [ 277.918532][ T4622] ftrace_event_field 548KB 548KB [ 277.924763][ T4622] pool_workqueue 261KB 288KB [ 277.942879][ T4622] task_group 30KB 30KB [ 277.963023][ T4622] mm_struct 427KB 661KB [ 277.975676][ T4622] vmap_area 234KB 322KB [ 278.019929][ T4622] debug_objects_cache 1667KB 1720KB [ 278.048804][ T4622] page->ptl 124KB 224KB [ 278.055264][ T4622] kmalloc-cg-8k 2128KB 2128KB [ 278.092774][ T4622] kmalloc-cg-4k 4912KB 5320KB [ 278.116011][ T4622] kmalloc-cg-2k 1260KB 1284KB [ 278.122257][ T4622] kmalloc-cg-1k 868KB 1024KB [ 278.150747][ T4622] kmalloc-cg-512 2098KB 2148KB [ 278.169057][ T4622] kmalloc-cg-256 40KB 40KB [ 278.175223][ T4622] kmalloc-cg-192 164KB 164KB [ 278.211107][ T4622] kmalloc-cg-128 104KB 104KB [ 278.231343][ T4622] kmalloc-cg-96 20KB 20KB [ 278.256013][ T4622] kmalloc-cg-64 16KB 16KB [ 278.262419][ T4622] kmalloc-cg-32 20KB 20KB [ 278.300276][ T4622] kmalloc-cg-16 79KB 188KB [ 278.326924][ T4622] kmalloc-cg-8 31KB 31KB [ 278.333280][ T4622] kmalloc-8k 9488KB 9584KB [ 278.371560][ T4622] kmalloc-4k 206352KB 206432KB [ 278.394117][ T4622] kmalloc-2k 24960KB 28384KB [ 278.431943][ T4622] kmalloc-1k 34754KB 34832KB [ 278.441413][ T4622] kmalloc-512 40299KB 40312KB [ 278.472644][ T4622] kmalloc-256 4889KB 4944KB [ 278.485006][ T4622] kmalloc-192 1126KB 1572KB [ 278.496051][ T4622] kmalloc-128 1644KB 2012KB [ 278.502550][ T4622] kmalloc-96 1247KB 1252KB [ 278.536622][ T4622] kmalloc-64 3105KB 3964KB [ 278.543134][ T4622] kmalloc-32 783KB 792KB [ 278.559573][ T4622] kmalloc-16 261KB 340KB [ 278.566022][ T4622] kmalloc-8 549KB 593KB [ 278.572676][ T4622] kmem_cache_node 207KB 208KB [ 278.578827][ T4622] kmem_cache 172KB 172KB [ 278.585096][ T4622] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/,task=sshd-session,pid=4622,uid=0 [ 278.599782][ T4622] Out of memory (oom_kill_allocating_task): Killed process 4622 (sshd-session) total-vm:11280kB, anon-rss:0kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:64kB oom_score_adj:0 [ 280.144955][ T5207] udevd invoked oom-killer: gfp_mask=0x1100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0 [ 280.187338][ T5207] CPU: 0 PID: 5207 Comm: udevd Not tainted syzkaller #0 [ 280.194359][ T5207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 280.204677][ T5207] Call Trace: [ 280.208102][ T5207] [ 280.211067][ T5207] dump_stack_lvl+0x188/0x250 [ 280.215966][ T5207] ? show_regs_print_info+0x20/0x20 [ 280.221202][ T5207] ? load_image+0x400/0x400 [ 280.225750][ T5207] ? local_lock_release+0x170/0x170 [ 280.231093][ T5207] ? __rwlock_init+0x140/0x140 [ 280.236162][ T5207] dump_header+0xd4/0x770 [ 280.240810][ T5207] oom_kill_process+0x20e/0x3d0 [ 280.245924][ T5207] out_of_memory+0xedc/0x1180 [ 280.250930][ T5207] ? __alloc_pages+0x480/0x480 [ 280.256178][ T5207] ? unreserve_highatomic_pageblock+0x363/0x4d0 [ 280.262940][ T5207] ? unregister_oom_notifier+0x20/0x20 [ 280.269420][ T5207] __alloc_pages_slowpath+0x1dc5/0x28b0 [ 280.276538][ T5207] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 280.282497][ T5207] ? prepare_alloc_pages+0x368/0x5f0 [ 280.288085][ T5207] __alloc_pages+0x340/0x480 [ 280.293170][ T5207] ? zone_statistics+0x170/0x170 [ 280.298257][ T5207] ? verify_lock_unused+0x140/0x140 [ 280.304112][ T5207] ? __lock_acquire+0x7d10/0x7d10 [ 280.309910][ T5207] alloc_pages_vma+0x393/0x7c0 [ 280.314724][ T5207] wp_page_copy+0x24b/0x2050 [ 280.319356][ T5207] ? do_wp_page+0x902/0xad0 [ 280.323919][ T5207] ? insert_page_into_pte_locked+0x480/0x480 [ 280.329979][ T5207] ? do_raw_spin_unlock+0x11d/0x230 [ 280.335650][ T5207] ? _raw_spin_unlock+0x24/0x40 [ 280.340539][ T5207] ? do_wp_page+0x902/0xad0 [ 280.345377][ T5207] handle_mm_fault+0x1f06/0x4410 [ 280.350378][ T5207] ? get_page+0xe0/0xe0 [ 280.354593][ T5207] ? vmacache_find+0x4e3/0x590 [ 280.359388][ T5207] ? vmacache_update+0xa0/0x100 [ 280.364401][ T5207] ? find_vma+0x1df/0x230 [ 280.369067][ T5207] do_user_addr_fault+0x489/0xc80 [ 280.374180][ T5207] exc_page_fault+0x60/0x100 [ 280.378825][ T5207] asm_exc_page_fault+0x22/0x30 [ 280.383722][ T5207] RIP: 0033:0x7eff4fec1e5c [ 280.388266][ T5207] Code: Unable to access opcode bytes at RIP 0x7eff4fec1e32. [ 280.395814][ T5207] RSP: 002b:00007ffc4d807380 EFLAGS: 00010206 [ 280.401930][ T5207] RAX: 00000000000000d0 RBX: 0000000000000020 RCX: 000000000000000d [ 280.409938][ T5207] RDX: 0000562d61629aa0 RSI: 00007eff4fffdbe0 RDI: 0000000000000000 [ 280.418046][ T5207] RBP: 00007eff4fffdac0 R08: 0000000000002000 R09: 0000000000000003 [ 280.426252][ T5207] R10: 0000000000000000 R11: 0000000000000297 R12: 0000562d61615370 [ 280.434292][ T5207] R13: 00007eff4fffdac0 R14: 0000000000000020 R15: 00007eff4fffdac0 [ 280.442544][ T5207] [ 280.678624][ T28] oom_reaper: reaped process 4622 (sshd-session), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 280.745170][ T5207] Mem-Info: [ 280.755950][ T5207] active_anon:0 inactive_anon:1 isolated_anon:0 [ 280.755950][ T5207] active_file:76 inactive_file:36 isolated_file:0 [ 280.755950][ T5207] unevictable:768 dirty:0 writeback:0 [ 280.755950][ T5207] slab_reclaimable:16047 slab_unreclaimable:117835 [ 280.755950][ T5207] mapped:1 shmem:768 pagetables:252 bounce:0 [ 280.755950][ T5207] kernel_misc_reclaimable:0 [ 280.755950][ T5207] free:6591 free_pcp:186 free_cma:0 [ 280.958652][ T5207] Node 0 active_anon:0kB inactive_anon:4kB active_file:252kB inactive_file:28kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11056kB pagetables:968kB all_unreclaimable? no [ 281.090711][ T5207] Node 1 active_anon:0kB inactive_anon:0kB active_file:172kB inactive_file:0kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:112kB pagetables:40kB all_unreclaimable? yes [ 281.199933][ T5207] Node 0 DMA free:5576kB min:204kB low:252kB high:300kB 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 [ 281.274980][ T5207] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 281.287396][ T5207] Node 0 DMA32 free:220kB min:34784kB low:43480kB high:52176kB reserved_highatomic:22528KB active_anon:0kB inactive_anon:4kB active_file:108kB inactive_file:136kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:620kB local_pcp:408kB free_cma:0kB [ 281.328256][ T5207] lowmem_reserve[]: 0 0 0 0 0 [ 281.333239][ T5207] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 281.361308][ T5207] lowmem_reserve[]: 0 0 0 0 0 [ 281.366137][ T5207] Node 1 Normal free:20656kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:36kB inactive_file:64kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 281.449010][ T5207] lowmem_reserve[]: 0 0 0 0 0 [ 281.453907][ T5207] Node 0 DMA: 0*4kB 1*8kB (U) 0*16kB 1*32kB (U) 0*64kB 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 2*2048kB (UM) 0*4096kB = 5544kB [ 281.478240][ T5207] Node 0 DMA32: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12kB [ 281.491905][ T5207] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 281.510033][ T5207] Node 1 Normal: 10*4kB (UME) 21*8kB (UME) 22*16kB (UME) 30*32kB (UME) 19*64kB (UM) 10*128kB (UME) 5*256kB (UM) 8*512kB (M) 11*1024kB (UM) 0*2048kB 0*4096kB = 20656kB [ 281.522141][ T3077] warn_alloc: 8324 callbacks suppressed [ 281.522201][ T3077] kworker/u4:5: page allocation failure: order:0, mode:0x40a20(GFP_ATOMIC|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0-1 [ 281.579459][ T5207] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 281.606065][ T3077] CPU: 1 PID: 3077 Comm: kworker/u4:5 Not tainted syzkaller #0 [ 281.613858][ T3077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 281.624440][ T3077] Workqueue: events_unbound cfg80211_wiphy_work [ 281.630828][ T3077] Call Trace: [ 281.634302][ T3077] [ 281.637359][ T3077] dump_stack_lvl+0x188/0x250 [ 281.638994][ T5207] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 281.642593][ T3077] ? rcu_lock_release+0x5/0x20 [ 281.656681][ T3077] ? show_regs_print_info+0x20/0x20 [ 281.662024][ T3077] ? load_image+0x400/0x400 [ 281.666579][ T3077] warn_alloc+0x243/0x320 [ 281.671043][ T3077] ? zone_watermark_ok_safe+0x240/0x240 [ 281.676686][ T3077] ? __cpuset_node_allowed+0x99/0x540 [ 281.682184][ T3077] ? wakeup_kswapd+0x46b/0x7a0 [ 281.687002][ T3077] __alloc_pages_slowpath+0x2844/0x28b0 [ 281.692706][ T3077] ? __lock_acquire+0x13bc/0x7d10 [ 281.697887][ T3077] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 281.703653][ T3077] ? __alloc_pages+0x480/0x480 [ 281.708474][ T3077] ? prepare_alloc_pages+0x368/0x5f0 [ 281.713851][ T3077] __alloc_pages+0x340/0x480 [ 281.714507][ T5207] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 281.718501][ T3077] ? zone_statistics+0x170/0x170 [ 281.718539][ T3077] ? alloc_pages+0x438/0x550 [ 281.718567][ T3077] new_slab+0x2e6/0x4b0 [ 281.718593][ T3077] ___slab_alloc+0x80a/0xdd0 [ 281.718617][ T3077] ? ieee802_11_parse_elems_crc+0xb3/0x10b0 [ 281.718651][ T3077] __kmalloc+0x1cd/0x330 [ 281.718671][ T3077] ? ieee802_11_parse_elems_crc+0xb3/0x10b0 [ 281.718702][ T3077] ieee802_11_parse_elems_crc+0xb3/0x10b0 [ 281.718726][ T3077] ? __lock_acquire+0x13bc/0x7d10 [ 281.718766][ T3077] ? mutex_lock_io_nested+0x60/0x60 [ 281.718799][ T3077] ? ieee80211_queue_delayed_work+0x150/0x150 [ 281.718823][ T3077] ? verify_lock_unused+0x140/0x140 [ 281.718855][ T3077] ieee80211_ibss_rx_queued_mgmt+0x370/0x2ab0 [ 281.718891][ T3077] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 281.718921][ T3077] ? lock_chain_count+0x20/0x20 [ 281.718952][ T3077] ? ieee80211_ibss_rx_no_sta+0x770/0x770 [ 281.718976][ T3077] ? _raw_spin_unlock_irqrestore+0x82/0x120 [ 281.719000][ T3077] ? lockdep_hardirqs_on+0x94/0x140 [ 281.719027][ T3077] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 281.788279][ T5207] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 281.791634][ T3077] ? _raw_spin_unlock+0x40/0x40 [ 281.834870][ T5207] 868 total pagecache pages [ 281.841422][ T3077] ? kcov_remote_start+0x6f/0x4a0 [ 281.841463][ T3077] ? kcov_remote_start+0xea/0x4a0 [ 281.861370][ T3077] ieee80211_iface_work+0x70e/0xc60 [ 281.866626][ T3077] cfg80211_wiphy_work+0x221/0x260 [ 281.871791][ T3077] process_one_work+0x85f/0x1010 [ 281.876974][ T3077] ? worker_detach_from_pool+0x240/0x240 [ 281.882641][ T3077] ? lockdep_hardirqs_off+0x70/0x100 [ 281.887965][ T3077] ? _raw_spin_lock_irq+0xb7/0xf0 [ 281.893053][ T3077] ? _raw_spin_lock_irqsave+0x100/0x100 [ 281.898640][ T3077] ? wq_worker_running+0x97/0x170 [ 281.904050][ T3077] worker_thread+0xaa6/0x1290 [ 281.908510][ T5207] 1 pages in swap cache [ 281.909029][ T3077] ? lockdep_hardirqs_on+0x94/0x140 [ 281.913192][ T5207] Swap cache stats: add 41420, delete 41419, find 241/937 [ 281.918664][ T3077] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 281.918702][ T3077] kthread+0x436/0x520 [ 281.918724][ T3077] ? rcu_lock_release+0x20/0x20 [ 281.918746][ T3077] ? kthread_blkcg+0xd0/0xd0 [ 281.918770][ T3077] ret_from_fork+0x1f/0x30 [ 281.950959][ T3077] [ 281.954963][ T5212] slab_out_of_memory: 4021 callbacks suppressed [ 281.954980][ T5212] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 281.954982][ T1174] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 281.955003][ T1174] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 281.961783][ T5212] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 281.971128][ T1174] node 0: slabs: 848, objs: 13568, free: 0 [ 281.980414][ T5212] node 0: slabs: 848, objs: 13568, free: 0 [ 281.991048][ T1174] node 1: slabs: 370, objs: 3848, free: 39 [ 282.001103][ T5212] node 1: slabs: 370, objs: 3848, free: 39 [ 282.007385][ T144] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 282.013463][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 282.019748][ T144] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 282.026234][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 282.038028][ T144] node 0: slabs: 848, objs: 13568, free: 0 [ 282.043940][ T23] node 0: slabs: 5029, objs: 60348, free: 0 [ 282.055470][ T144] node 1: slabs: 370, objs: 3848, free: 39 [ 282.067464][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 282.076281][ T9] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 282.082425][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 282.088694][ T9] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 282.094890][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 282.104600][ T9] node 0: slabs: 848, objs: 13568, free: 0 [ 282.113191][ T23] node 0: slabs: 5029, objs: 60348, free: 0 [ 282.123724][ T9] node 1: slabs: 370, objs: 3848, free: 39 [ 282.134387][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 282.146140][ T5211] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 282.147521][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 282.153384][ T5211] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 282.159723][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 282.169024][ T5211] node 0: slabs: 848, objs: 13568, free: 0 [ 282.176959][ T23] node 0: slabs: 5030, objs: 60360, free: 0 [ 282.187437][ T5211] node 1: slabs: 370, objs: 3848, free: 39 [ 282.198787][ T23] node 1: slabs: 810, objs: 9720, free: 34 [ 282.198841][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 282.232176][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 282.243581][ T23] node 0: slabs: 4967, objs: 59604, free: 826 [ 282.250362][ T23] node 1: slabs: 807, objs: 9684, free: 34 [ 282.258351][ T1435] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 282.267513][ T1435] cache: kmalloc-96, object size: 96, buffer size: 128, default order: 0, min order: 0 [ 282.277939][ T1435] node 0: slabs: 229, objs: 7328, free: 0 [ 282.284010][ T1435] node 1: slabs: 84, objs: 2688, free: 38 [ 282.298680][ T5207] Free swap = 109076kB [ 282.302982][ T5207] Total swap = 124996kB [ 282.336047][ T5207] 2097051 pages RAM [ 282.340740][ T5207] 0 pages HighMem/MovableOnly [ 282.345563][ T5207] 411492 pages reserved [ 282.375977][ T5207] 0 pages cma reserved [ 282.377573][ T3077] Mem-Info: [ 282.380106][ T5207] Unreclaimable slab info: [ 282.380117][ T5207] Name Used Total [ 282.383253][ T3077] active_anon:0 inactive_anon:1 isolated_anon:0 [ 282.383253][ T3077] active_file:91 inactive_file:33 isolated_file:5 [ 282.383253][ T3077] unevictable:768 dirty:0 writeback:0 [ 282.383253][ T3077] slab_reclaimable:16047 slab_unreclaimable:112732 [ 282.383253][ T3077] mapped:1 shmem:768 pagetables:252 bounce:0 [ 282.383253][ T3077] kernel_misc_reclaimable:0 [ 282.383253][ T3077] free:9890 free_pcp:1863 free_cma:0 [ 282.416410][ T5207] pid_2 18KB 18KB [ 282.438026][ T3077] Node 0 active_anon:0kB inactive_anon:4kB active_file:256kB inactive_file:4kB unevictable:1536kB isolated(anon):0kB isolated(file):20kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:11112kB pagetables:968kB all_unreclaimable? no [ 282.473443][ T3077] Node 1 active_anon:0kB inactive_anon:0kB active_file:108kB inactive_file:24kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:112kB pagetables:40kB all_unreclaimable? yes [ 282.496280][ T5207] bio-320 7KB 7KB [ 282.526007][ T5207] zswap_entry 3391KB 3391KB [ 282.532589][ T5207] batadv_tt_change_cache 8KB 8KB [ 282.542887][ T3077] Node 0 DMA free:5592kB min:204kB low:252kB high:300kB 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 [ 282.556322][ T5207] batadv_tl_cache 8KB 8KB [ 282.587790][ T3077] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 282.593783][ T3077] Node 0 DMA32 free:14344kB min:34784kB low:43480kB high:52176kB reserved_highatomic:18432KB active_anon:0kB inactive_anon:4kB active_file:0kB inactive_file:328kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:864kB local_pcp:0kB free_cma:0kB [ 282.596240][ T5207] TIPC 63KB 63KB [ 282.656022][ T5207] SCTPv6 63KB 63KB [ 282.662200][ T5207] DCCPv6 59KB 59KB [ 282.665559][ T3077] lowmem_reserve[]: 0 0 0 0 0 [ 282.673520][ T3077] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 282.686236][ T5207] DCCP 61KB 61KB [ 282.716008][ T5207] RXRPC 61KB 61KB [ 282.722320][ T5207] rxrpc_call_jar 236KB 252KB [ 282.734866][ T3077] lowmem_reserve[]: 0 0 0 0 0 [ 282.744692][ T3077] Node 1 Normal free:22520kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:108kB inactive_file:24kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:3832kB local_pcp:0kB free_cma:0kB [ 282.746081][ T5207] bridge_fdb_cache 19KB 19KB [ 282.803638][ T3077] lowmem_reserve[]: 0 0 0 0 0 [ 282.806150][ T5207] MPTCPv6 61KB 61KB [ 282.808492][ T3077] Node 0 DMA: [ 282.814711][ T5207] fib6_nodes 192KB 192KB [ 282.814759][ T5207] ip6_dst_cache 214KB 510KB [ 282.835005][ T3077] 0*4kB 1*8kB (U) 1*16kB (U) 2*32kB (U) 0*64kB 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 2*2048kB (UM) 0*4096kB = 5592kB [ 282.856934][ T5207] RAWv6 146KB 246KB [ 282.863122][ T5207] UDPv6 128KB 128KB [ 282.872712][ T3077] Node 0 DMA32: 257*4kB (UMH) 53*8kB (UM) 8*16kB (U) 230*32kB (UME) 38*64kB (UE) 20*128kB (UE) 7*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 15724kB [ 282.886247][ T5207] tw_sock_TCPv6 7KB 7KB [ 282.894387][ T5207] TCPv6 95KB 95KB [ 282.916347][ T5207] nf_conntrack 39KB 39KB [ 282.922548][ T5207] wg_peer 152KB 152KB [ 282.935985][ T5207] allowedips_node 19KB 19KB [ 282.942407][ T5207] t10_alua_lu_gp_cache 3KB 3KB [ 282.970075][ T3077] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 282.989326][ T5207] sd_ext_cdb 3KB 3KB [ 282.995817][ T5207] scsi_sense_cache 1348KB 1348KB [ 283.029303][ T3077] Node 1 Normal: 36*4kB (UME) 30*8kB (UME) 23*16kB (UME) 46*32kB (UME) 23*64kB (UM) 13*128kB (UME) 10*256kB (UM) 10*512kB (UM) 13*1024kB (UM) 0*2048kB 0*4096kB = 26352kB [ 283.049928][ T5207] virtio_scsi_cmd 16KB 16KB [ 283.083092][ T5207] bio-136 88KB 88KB [ 283.103474][ T5207] sgpool-128 29KB 29KB [ 283.116651][ T3077] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 283.153519][ T5207] sgpool-64 63KB 63KB [ 283.187224][ T3077] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 283.198327][ T5207] sgpool-32 294KB 378KB [ 283.204444][ T5207] sgpool-16 135KB 135KB [ 283.241740][ T3077] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 283.263526][ T5207] sgpool-8 93KB 93KB [ 283.282351][ T3077] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 283.292492][ T5207] bio-224 3KB 3KB [ 283.319893][ T5207] mqueue_inode_cache 60KB 60KB [ 283.338007][ T3077] 868 total pagecache pages [ 283.342685][ T3077] 1 pages in swap cache [ 283.378885][ T3077] Swap cache stats: add 41420, delete 41419, find 241/937 [ 283.396173][ T5207] f2fs_bio_post_read_ctx 16KB 16KB [ 283.402832][ T5207] jfs_mp 7KB 7KB [ 283.426011][ T3077] Free swap = 109076kB [ 283.430318][ T3077] Total swap = 124996kB [ 283.434672][ T3077] 2097051 pages RAM [ 283.446006][ T5207] cifs_small_rq 16KB 16KB [ 283.452186][ T5207] cifs_request 67KB 67KB [ 283.489948][ T5207] cifs_mpx_ids 4KB 4KB [ 283.505961][ T3077] 0 pages HighMem/MovableOnly [ 283.510705][ T3077] 411492 pages reserved [ 283.514996][ T3077] 0 pages cma reserved [ 283.533540][ T5207] nfs_commit_data 15KB 15KB [ 283.573622][ T5207] nfs_write_data 47KB 47KB [ 283.608213][ T5207] jbd2_inode 7KB 7KB [ 283.614354][ T5207] ext4_system_zone 3KB 3KB [ 283.659138][ T5207] ext4_io_end_vec 7KB 7KB [ 283.665378][ T5207] ext4_bio_post_read_ctx 15KB 15KB [ 283.691016][ T5207] pid_namespace 7KB 7KB [ 283.697275][ T5207] rpc_buffers 31KB 31KB [ 283.703736][ T5207] rpc_tasks 3KB 3KB [ 283.709898][ T5207] UNIX-STREAM 384KB 384KB [ 283.716066][ T5207] UNIX 326KB 416KB [ 283.722382][ T5207] MPTCP 63KB 63KB [ 283.728652][ T5207] request_sock_subflow_v4 7KB 7KB [ 283.735379][ T5207] tcp_bind_bucket 8KB 8KB [ 283.742509][ T5207] ip_fib_trie 28KB 28KB [ 283.749290][ T5207] ip_fib_alias 106KB 106KB [ 283.755397][ T5207] ip_dst_cache 28KB 28KB [ 283.761684][ T5207] RAW 123KB 123KB [ 283.767828][ T5207] UDP 154KB 154KB [ 283.774679][ T5207] tw_sock_TCP 7KB 7KB [ 283.780978][ T5207] request_sock_TCP 15KB 15KB [ 283.787156][ T5207] TCP 60KB 60KB [ 283.793263][ T5207] hugetlbfs_inode_cache 30KB 30KB [ 283.800153][ T5207] fscache_cookie_jar 15KB 15KB [ 283.832603][ T5207] bio-256 11KB 11KB [ 283.855625][ T5207] ep_head 16KB 16KB [ 283.893626][ T5207] eventpoll_pwq 43KB 43KB [ 283.935583][ T5207] eventpoll_epi 78KB 78KB [ 283.952796][ T5207] inotify_inode_mark 19KB 19KB [ 283.975974][ T5207] bio_crypt_ctx 7KB 7KB [ 283.983290][ T5207] request_queue 584KB 769KB [ 284.013130][ T5207] blkdev_ioc 18KB 18KB [ 284.034232][ T5207] bio-200 154KB 191KB [ 284.056826][ T5207] biovec-max 386KB 386KB [ 284.063258][ T5207] biovec-64 406KB 551KB [ 284.095953][ T5207] biovec-16 78KB 78KB [ 284.102093][ T5207] bio_integrity_payload 3KB 3KB [ 284.116015][ T5207] user_namespace 15KB 15KB [ 284.122143][ T5207] uid_cache 7KB 7KB [ 284.139339][ T5207] dmaengine-unmap-256 30KB 30KB [ 284.145644][ T5207] dmaengine-unmap-128 15KB 15KB [ 284.158716][ T5207] dmaengine-unmap-16 4KB 4KB [ 284.164919][ T5207] dmaengine-unmap-2 4KB 4KB [ 284.173899][ T5207] QIPCRTR 31KB 31KB [ 284.180714][ T5207] audit_buffer 3KB 3KB [ 284.187706][ T5207] skbuff_ext_cache 48KB 48KB [ 284.193987][ T5207] skbuff_fclone_cache 210KB 247KB [ 284.201279][ T5207] skbuff_head_cache 21156KB 21168KB [ 284.212380][ T5207] configfs_dir_cache 8KB 8KB [ 284.218920][ T5207] file_lock_cache 90KB 90KB [ 284.225663][ T5207] file_lock_ctx 15KB 15KB [ 284.247251][ T5207] fsnotify_mark_connector 16KB 16KB [ 284.255136][ T5207] taskstats 15KB 15KB [ 284.271539][ T5207] proc_dir_entry 953KB 956KB [ 284.282365][ T5207] pde_opener 19KB 19KB [ 284.301830][ T5207] seq_file 56KB 75KB [ 284.314724][ T5207] sigqueue 129KB 149KB [ 284.325754][ T5207] shmem_inode_cache 7145KB 7244KB [ 284.337644][ T5207] kernfs_iattrs_cache 7KB 7KB [ 284.344070][ T5207] kernfs_node_cache 30995KB 31216KB [ 284.360157][ T5207] mnt_cache 206KB 220KB [ 284.377755][ T5207] filp 293KB 967KB [ 284.384057][ T5207] names_cache 463KB 743KB [ 284.402205][ T5207] net_namespace 185KB 212KB [ 284.413275][ T5207] iint_cache 48KB 48KB [ 284.435342][ T5207] lsm_inode_cache 1790KB 1940KB [ 284.450398][ T5207] lsm_file_cache 202KB 334KB [ 284.461669][ T5207] key_jar 15KB 15KB [ 284.473368][ T5207] uts_namespace 15KB 15KB [ 284.485632][ T5207] nsproxy 19KB 19KB [ 284.502686][ T5207] vm_area_struct 541KB 723KB [ 284.520368][ T5207] fs_cache 108KB 108KB [ 284.535976][ T5207] files_cache 368KB 382KB [ 284.542197][ T5207] signal_cache 901KB 2099KB [ 284.559098][ T5207] sighand_cache 901KB 901KB [ 284.565331][ T5207] task_struct 2975KB 4224KB [ 284.580978][ T5207] cred_jar 165KB 416KB [ 284.593668][ T5207] anon_vma_chain 263KB 370KB [ 284.608207][ T5207] anon_vma 163KB 203KB [ 284.614452][ T5207] pid 138KB 356KB [ 284.633184][ T5207] Acpi-Operand 204KB 237KB [ 284.652148][ T5207] Acpi-ParseExt 23KB 23KB [ 284.659368][ T5207] Acpi-Parse 126KB 126KB [ 284.665657][ T5207] Acpi-State 196KB 232KB [ 284.671885][ T5207] Acpi-Namespace 28KB 28KB [ 284.678410][ T5207] numa_policy 3KB 3KB [ 284.684716][ T5207] perf_event 31KB 31KB [ 284.690981][ T5207] trace_event_file 432KB 432KB [ 284.704745][ T5207] ftrace_event_field 548KB 548KB [ 284.713339][ T5207] pool_workqueue 261KB 288KB [ 284.727777][ T5207] task_group 30KB 30KB [ 284.734278][ T5207] mm_struct 427KB 661KB [ 284.748516][ T5207] vmap_area 234KB 322KB [ 284.754918][ T5207] debug_objects_cache 1667KB 1720KB [ 284.770075][ T5207] page->ptl 123KB 216KB [ 284.790972][ T5207] kmalloc-cg-8k 2128KB 2128KB [ 284.805989][ T5207] kmalloc-cg-4k 4912KB 5320KB [ 284.812393][ T5207] kmalloc-cg-2k 1260KB 1284KB [ 284.827937][ T5207] kmalloc-cg-1k 868KB 1024KB [ 284.835701][ T5207] kmalloc-cg-512 2070KB 2148KB [ 284.850008][ T5207] kmalloc-cg-256 40KB 40KB [ 284.864829][ T5207] kmalloc-cg-192 164KB 164KB [ 284.871360][ T5207] kmalloc-cg-128 104KB 104KB [ 284.923486][ T5207] kmalloc-cg-96 20KB 20KB [ 284.955963][ T5207] kmalloc-cg-64 16KB 16KB [ 284.962109][ T5207] kmalloc-cg-32 20KB 20KB [ 284.996013][ T5207] kmalloc-cg-16 79KB 188KB [ 285.022796][ T5207] kmalloc-cg-8 31KB 31KB [ 285.056923][ T5207] kmalloc-8k 9488KB 9584KB [ 285.063067][ T5207] kmalloc-4k 186952KB 187040KB [ 285.097488][ T5207] kmalloc-2k 24840KB 28384KB [ 285.103720][ T5207] kmalloc-1k 34382KB 34608KB [ 285.174364][ T5207] kmalloc-512 40502KB 41000KB [ 285.205302][ T5207] kmalloc-256 4889KB 4944KB [ 285.238150][ T5207] kmalloc-192 1122KB 1572KB [ 285.245055][ T5207] kmalloc-128 1615KB 2012KB [ 285.295978][ T5207] kmalloc-96 1245KB 1252KB [ 285.302194][ T5207] kmalloc-64 3066KB 3964KB Connection to 10.128.10.26 closed by remote host. [ 285.366124][ T5207] kmalloc-32 787KB 796KB [ 285.372267][ T5207] kmalloc-16 261KB 340KB [ 285.442026][ T5207] kmalloc-8 548KB 593KB [ 285.475966][ T5207] kmem_cache_node 207KB 208KB [ 285.505971][ T5207] kmem_cache 172KB 172KB [ 285.512296][ T5207] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/,task=udevd,pid=5207,uid=0 [ 285.596027][ T5207] Out of memory (oom_kill_allocating_task): Killed process 5207 (udevd) total-vm:11048kB, anon-rss:0kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:64kB oom_score_adj:0 [ 286.946488][ T3946] sshd invoked oom-killer: gfp_mask=0x1100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=-1000 [ 286.978644][ T3946] CPU: 1 PID: 3946 Comm: sshd Not tainted syzkaller #0 [ 286.985829][ T3946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 286.996008][ T3946] Call Trace: [ 286.999450][ T3946] [ 287.002412][ T3946] dump_stack_lvl+0x188/0x250 [ 287.007136][ T3946] ? show_regs_print_info+0x20/0x20 [ 287.012373][ T3946] ? load_image+0x400/0x400 [ 287.016921][ T3946] ? local_lock_release+0x170/0x170 [ 287.022156][ T3946] ? __rwlock_init+0x140/0x140 [ 287.027137][ T3946] dump_header+0xd4/0x770 [ 287.031603][ T3946] oom_kill_process+0x20e/0x3d0 [ 287.036591][ T3946] out_of_memory+0xdbe/0x1180 [ 287.041321][ T3946] ? __alloc_pages+0x480/0x480 [ 287.046339][ T3946] ? unreserve_highatomic_pageblock+0x363/0x4d0 [ 287.052618][ T3946] ? unregister_oom_notifier+0x20/0x20 [ 287.058239][ T3946] __alloc_pages_slowpath+0x1dc5/0x28b0 [ 287.063869][ T3946] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 287.069817][ T3946] ? prepare_alloc_pages+0x368/0x5f0 [ 287.075532][ T3946] __alloc_pages+0x340/0x480 [ 287.080173][ T3946] ? zone_statistics+0x170/0x170 [ 287.085516][ T3946] ? __lock_acquire+0x7d10/0x7d10 [ 287.090680][ T3946] ? __rwlock_init+0x140/0x140 [ 287.095575][ T3946] alloc_pages_vma+0x393/0x7c0 [ 287.100465][ T3946] ? __swp_swapcount+0xf5/0x120 [ 287.105534][ T3946] __read_swap_cache_async+0x1b5/0xa70 [ 287.111302][ T3946] swap_cluster_readahead+0x6a3/0x7c0 [ 287.116902][ T3946] ? read_swap_cache_async+0x90/0x90 [ 287.122598][ T3946] swapin_readahead+0xf1/0xac0 [ 287.127572][ T3946] ? rcu_lock_release+0x5/0x20 [ 287.132376][ T3946] ? __lock_acquire+0x7d10/0x7d10 [ 287.137446][ T3946] ? exit_swap_address_space+0x280/0x280 [ 287.143211][ T3946] ? put_swap_device+0x15c/0x200 [ 287.148196][ T3946] ? lookup_swap_cache+0x135/0x440 [ 287.153361][ T3946] ? get_swap_device+0x21b/0x360 [ 287.158373][ T3946] do_swap_page+0x4b6/0x1f40 [ 287.163131][ T3946] ? count_memcg_event_mm+0x324/0x370 [ 287.168731][ T3946] handle_mm_fault+0x1b16/0x4410 [ 287.173859][ T3946] ? get_page+0xe0/0xe0 [ 287.178065][ T3946] ? vmacache_find+0x238/0x590 [ 287.182871][ T3946] ? find_vma+0xd2/0x230 [ 287.187150][ T3946] do_user_addr_fault+0x489/0xc80 [ 287.192322][ T3946] exc_page_fault+0x60/0x100 [ 287.197218][ T3946] asm_exc_page_fault+0x22/0x30 [ 287.202288][ T3946] RIP: 0010:do_sys_poll+0xf56/0x11a0 [ 287.207709][ T3946] Code: 8b 74 24 30 4c 8d 76 12 48 8b 54 24 68 48 83 c2 06 45 31 ff 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 75 2b 42 0f b7 44 fe 12 <66> 89 02 49 89 d4 44 39 fb 74 3b e8 9a df aa ff 49 ff c7 49 83 c6 [ 287.228359][ T3946] RSP: 0000:ffffc9000335f860 EFLAGS: 00050246 [ 287.234485][ T3946] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88801dfd5940 [ 287.242749][ T3946] RDX: 0000563e0bbbc1e6 RSI: ffffc9000335fc70 RDI: 0000000000000000 [ 287.250782][ T3946] RBP: ffffc9000335fe10 R08: ffff8880248e0cff R09: 1ffff1100491c19f [ 287.259366][ T3946] R10: dffffc0000000000 R11: ffffed100491c1a0 R12: 0000563e0bbbc1f0 [ 287.267547][ T3946] R13: dffffc0000000000 R14: ffffc9000335fc82 R15: 0000000000000000 [ 287.275864][ T3946] ? do_sys_poll+0x6f1/0x11a0 [ 287.280762][ T3946] ? poll_select_finish+0x620/0x620 [ 287.286014][ T3946] ? __ia32_compat_sys_ppoll_time64+0x320/0x320 [ 287.292420][ T3946] ? __ia32_compat_sys_ppoll_time64+0x320/0x320 [ 287.298813][ T3946] ? set_user_sigmask+0x15d/0x1c0 [ 287.303888][ T3946] ? sigprocmask+0x190/0x190 [ 287.308527][ T3946] __se_sys_ppoll+0x206/0x2a0 [ 287.313244][ T3946] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 287.319271][ T3946] ? __x64_sys_ppoll+0xc0/0xc0 [ 287.324096][ T3946] ? lockdep_hardirqs_on+0x94/0x140 [ 287.329469][ T3946] ? __x64_sys_ppoll+0x1c/0xc0 [ 287.334368][ T3946] do_syscall_64+0x4c/0xa0 [ 287.338833][ T3946] ? clear_bhb_loop+0x30/0x80 [ 287.343551][ T3946] ? clear_bhb_loop+0x30/0x80 [ 287.348537][ T3946] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 287.354640][ T3946] RIP: 0033:0x7facef7ad407 [ 287.359102][ T3946] Code: Unable to access opcode bytes at RIP 0x7facef7ad3dd. [ 287.366582][ T3946] RSP: 002b:00007ffd13dd6d40 EFLAGS: 00000202 ORIG_RAX: 000000000000010f [ 287.375517][ T3946] RAX: ffffffffffffffda RBX: 00007facef6b9300 RCX: 00007facef7ad407 [ 287.383621][ T3946] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000563e0bbbc1e0 [ 287.391920][ T3946] RBP: 0000000000000002 R08: 0000000000000008 R09: 0000000000000000 [ 287.400403][ T3946] R10: 00007ffd13dd7010 R11: 0000000000000202 R12: 0000000000000064 [ 287.409208][ T3946] R13: 0000000000000000 R14: 0000563e003f6004 R15: 0000000000000002 [ 287.417698][ T3946] [ 287.471925][ T3946] Mem-Info: [ 287.475477][ T3946] active_anon:0 inactive_anon:0 isolated_anon:0 [ 287.475477][ T3946] active_file:65 inactive_file:18 isolated_file:0 [ 287.475477][ T3946] unevictable:768 dirty:0 writeback:0 [ 287.475477][ T3946] slab_reclaimable:16045 slab_unreclaimable:112848 [ 287.475477][ T3946] mapped:1 shmem:768 pagetables:207 bounce:0 [ 287.475477][ T3946] kernel_misc_reclaimable:0 [ 287.475477][ T3946] free:11617 free_pcp:253 free_cma:0 [ 287.524509][ T3946] Node 0 active_anon:0kB inactive_anon:0kB active_file:132kB inactive_file:24kB unevictable:1536kB isolated(anon):0kB isolated(file):128kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:10992kB pagetables:788kB all_unreclaimable? no [ 287.556544][ T3946] Node 1 active_anon:0kB inactive_anon:0kB active_file:128kB inactive_file:48kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:112kB pagetables:40kB all_unreclaimable? yes [ 287.588785][ T3946] Node 0 DMA free:5592kB min:204kB low:252kB high:300kB 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 [ 287.625981][ T3946] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 287.632042][ T3946] Node 0 DMA32 free:13532kB min:34784kB low:43480kB high:52176kB reserved_highatomic:28672KB active_anon:0kB inactive_anon:0kB active_file:132kB inactive_file:52kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:1020kB local_pcp:444kB free_cma:0kB [ 287.669704][ T3946] lowmem_reserve[]: 0 0 0 0 0 [ 287.674611][ T3946] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 287.701835][ T3946] lowmem_reserve[]: 0 0 0 0 0 [ 287.711421][ T3946] Node 1 Normal free:27344kB min:55108kB low:68884kB high:82660kB reserved_highatomic:43008KB active_anon:0kB inactive_anon:0kB active_file:128kB inactive_file:44kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 287.740526][ T3946] lowmem_reserve[]: 0 0 0 0 0 [ 287.746625][ T3946] Node 0 DMA: 0*4kB 1*8kB (U) 1*16kB (U) 2*32kB (U) 0*64kB 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 2*2048kB (UM) 0*4096kB = 5592kB [ 287.761134][ T3946] Node 0 DMA32: 3*4kB (M) 22*8kB (UM) 10*16kB (U) 203*32kB (UMEH) 38*64kB (UE) 20*128kB (UE) 7*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 13628kB [ 287.781924][ T3946] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 287.794272][ T3946] Node 1 Normal: 36*4kB (UME) 30*8kB (UME) 23*16kB (UME) 27*32kB (UME) 16*64kB (UM) 9*128kB (UME) 10*256kB (UM) 11*512kB (UM) 15*1024kB (UM) 0*2048kB 0*4096kB = 27344kB [ 287.812142][ T3946] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 287.822130][ T3946] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 287.832542][ T3946] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 287.842462][ T3946] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 287.852856][ T3946] 867 total pagecache pages [ 287.857645][ T3946] 0 pages in swap cache [ 287.861826][ T3946] Swap cache stats: add 41420, delete 41420, find 241/939 [ 287.870624][ T3946] Free swap = 109332kB [ 287.874830][ T3946] Total swap = 124996kB [ 287.884441][ T3946] 2097051 pages RAM [ 287.892398][ T3946] 0 pages HighMem/MovableOnly [ 287.905765][ T3946] 411492 pages reserved [ 287.914065][ T3946] 0 pages cma reserved [ 287.926821][ T3946] Unreclaimable slab info: [ 287.955753][ T3946] Name Used Total [ 287.970319][ T3946] pid_2 18KB 18KB [ 288.006797][ T3946] bio-320 7KB 7KB [ 288.013063][ T3946] zswap_entry 3391KB 3391KB [ 288.053068][ T3946] batadv_tt_change_cache 8KB 8KB [ 288.086469][ T3946] batadv_tl_cache 8KB 8KB [ 288.093163][ T3946] TIPC 63KB 63KB [ 288.118393][ T3946] SCTPv6 63KB 63KB [ 288.124821][ T3946] DCCPv6 59KB 59KB [ 288.169603][ T3946] DCCP 61KB 61KB [ 288.193229][ T3946] RXRPC 61KB 61KB [ 288.216220][ T3946] rxrpc_call_jar 236KB 252KB [ 288.222470][ T3946] bridge_fdb_cache 19KB 19KB [ 288.257045][ T3946] MPTCPv6 61KB 61KB [ 288.263301][ T3946] fib6_nodes 192KB 192KB [ 288.296111][ T3946] ip6_dst_cache 214KB 510KB [ 288.303358][ T3946] RAWv6 146KB 246KB [ 288.345992][ T3946] UDPv6 128KB 128KB [ 288.352322][ T3946] tw_sock_TCPv6 7KB 7KB [ 288.380044][ T3946] TCPv6 95KB 95KB [ 288.408158][ T3946] nf_conntrack 39KB 39KB [ 288.414469][ T3946] wg_peer 152KB 152KB [ 288.444262][ T3946] allowedips_node 19KB 19KB [ 288.472764][ T3946] t10_alua_lu_gp_cache 3KB 3KB [ 288.486086][ T3946] sd_ext_cdb 3KB 3KB [ 288.492497][ T3946] scsi_sense_cache 1348KB 1348KB [ 288.511072][ T3946] virtio_scsi_cmd 16KB 16KB [ 288.524364][ T3946] bio-136 88KB 88KB [ 288.534723][ T3946] sgpool-128 29KB 29KB [ 288.551524][ T3946] sgpool-64 63KB 63KB [ 288.562198][ T3946] sgpool-32 294KB 378KB [ 288.574072][ T3946] sgpool-16 135KB 135KB [ 288.602911][ T3946] sgpool-8 93KB 93KB [ 288.618579][ T3946] bio-224 3KB 3KB [ 288.624971][ T3946] mqueue_inode_cache 60KB 60KB [ 288.663416][ T3946] f2fs_bio_post_read_ctx 16KB 16KB [ 288.682242][ T3946] jfs_mp 7KB 7KB [ 288.756257][ T3946] cifs_small_rq 16KB 16KB [ 288.762454][ T3946] cifs_request 67KB 67KB [ 288.786913][ T3946] cifs_mpx_ids 4KB 4KB [ 288.812990][ T3946] nfs_commit_data 15KB 15KB [ 288.836984][ T3946] nfs_write_data 47KB 47KB [ 288.843656][ T3946] jbd2_inode 7KB 7KB [ 288.879748][ T3946] ext4_system_zone 3KB 3KB [ 288.912091][ T3946] ext4_io_end_vec 7KB 7KB [ 288.932821][ T3946] ext4_bio_post_read_ctx 15KB 15KB [ 288.949327][ T3946] pid_namespace 7KB 7KB [ 288.955484][ T3946] rpc_buffers 31KB 31KB [ 288.979058][ T3946] rpc_tasks 3KB 3KB [ 288.985707][ T3946] UNIX-STREAM 384KB 384KB [ 289.006004][ T3946] UNIX 326KB 416KB [ 289.012693][ T3946] MPTCP 63KB 63KB [ 289.030751][ T3946] request_sock_subflow_v4 7KB 7KB [ 289.045389][ T3946] tcp_bind_bucket 8KB 8KB [ 289.059991][ T3946] ip_fib_trie 28KB 28KB [ 289.102955][ T3946] ip_fib_alias 106KB 106KB [ 289.128000][ T3946] ip_dst_cache 28KB 28KB [ 289.134494][ T3946] RAW 123KB 123KB [ 289.184061][ T3946] UDP 154KB 154KB [ 289.209890][ T3946] tw_sock_TCP 7KB 7KB [ 289.233698][ T3946] request_sock_TCP 15KB 15KB [ 289.256423][ T3946] TCP 60KB 60KB [ 289.263508][ T3946] hugetlbfs_inode_cache 30KB 30KB [ 289.285581][ T3946] fscache_cookie_jar 15KB 15KB [ 289.317681][ T3946] bio-256 11KB 11KB [ 289.347621][ T3946] ep_head 16KB 16KB [ 289.354792][ T3946] eventpoll_pwq 43KB 43KB [ 289.380635][ T3946] eventpoll_epi 78KB 78KB [ 289.410046][ T3946] inotify_inode_mark 19KB 19KB [ 289.427294][ T3946] bio_crypt_ctx 7KB 7KB [ 289.433444][ T3946] request_queue 584KB 769KB [ 289.470111][ T3946] blkdev_ioc 18KB 18KB [ 289.482692][ T3946] bio-200 154KB 191KB [ 289.502205][ T3946] biovec-max 386KB 386KB [ 289.527578][ T3946] biovec-64 406KB 551KB [ 289.534120][ T3946] biovec-16 78KB 78KB [ 289.559205][ T3946] bio_integrity_payload 3KB 3KB [ 289.587705][ T3946] user_namespace 15KB 15KB [ 289.594160][ T3946] uid_cache 7KB 7KB [ 289.626246][ T3946] dmaengine-unmap-256 30KB 30KB [ 289.632714][ T3946] dmaengine-unmap-128 15KB 15KB [ 289.669642][ T3946] dmaengine-unmap-16 4KB 4KB [ 289.691484][ T3946] dmaengine-unmap-2 4KB 4KB [ 289.714461][ T3946] QIPCRTR 31KB 31KB [ 289.730804][ T3946] audit_buffer 3KB 3KB [ 289.746376][ T3946] skbuff_ext_cache 48KB 48KB [ 289.752513][ T3946] skbuff_fclone_cache 210KB 247KB [ 289.775217][ T3946] skbuff_head_cache 22765KB 22777KB [ 289.795967][ T3946] configfs_dir_cache 8KB 8KB [ 289.802185][ T3946] file_lock_cache 90KB 90KB [ 289.820705][ T3946] file_lock_ctx 15KB 15KB [ 289.834437][ T3946] fsnotify_mark_connector 16KB 16KB [ 289.847973][ T3946] taskstats 15KB 15KB [ 289.854184][ T3946] proc_dir_entry 953KB 956KB [ 289.885287][ T3946] pde_opener 19KB 19KB [ 289.899282][ T3946] seq_file 56KB 75KB [ 289.927235][ T3946] sigqueue 129KB 149KB [ 289.933798][ T3946] shmem_inode_cache 7145KB 7244KB [ 289.968554][ T3946] kernfs_iattrs_cache 7KB 7KB [ 289.975070][ T3946] kernfs_node_cache 30995KB 31216KB [ 290.005412][ T3946] mnt_cache 206KB 220KB [ 290.026421][ T3946] filp 293KB 967KB [ 290.032710][ T3946] names_cache 463KB 743KB [ 290.072105][ T3946] net_namespace 185KB 212KB [ 290.093951][ T3946] iint_cache 48KB 48KB [ 290.104114][ T3946] lsm_inode_cache 1790KB 1940KB [ 290.125511][ T3946] lsm_file_cache 202KB 334KB [ 290.146999][ T3946] key_jar 15KB 15KB [ 290.153142][ T3946] uts_namespace 15KB 15KB [ 290.185798][ T3946] nsproxy 19KB 19KB [ 290.209653][ T3946] vm_area_struct 541KB 723KB [ 290.231739][ T3946] fs_cache 108KB 108KB [ 290.242707][ T3946] files_cache 368KB 382KB [ 290.262807][ T3946] signal_cache 901KB 2099KB [ 290.283327][ T3946] sighand_cache 901KB 901KB [ 290.296946][ T3946] task_struct 2975KB 4224KB [ 290.303271][ T3946] cred_jar 165KB 416KB [ 290.309455][ T3946] anon_vma_chain 263KB 370KB [ 290.315825][ T3946] anon_vma 158KB 195KB [ 290.323652][ T3946] pid 138KB 356KB [ 290.333682][ T3946] Acpi-Operand 204KB 237KB [ 290.340810][ T3946] Acpi-ParseExt 23KB 23KB [ 290.348384][ T3946] Acpi-Parse 126KB 126KB [ 290.354668][ T3946] Acpi-State 196KB 232KB [ 290.361170][ T3946] Acpi-Namespace 28KB 28KB [ 290.370093][ T3946] numa_policy 3KB 3KB [ 290.376862][ T3946] perf_event 31KB 31KB [ 290.382985][ T3946] trace_event_file 432KB 432KB [ 290.389647][ T3946] ftrace_event_field 548KB 548KB [ 290.396044][ T3946] pool_workqueue 261KB 288KB [ 290.402149][ T3946] task_group 30KB 30KB [ 290.408457][ T3946] mm_struct 427KB 661KB [ 290.415317][ T3946] vmap_area 234KB 322KB [ 290.450043][ T3946] debug_objects_cache 1667KB 1720KB [ 290.490260][ T3946] page->ptl 123KB 216KB [ 290.514364][ T3946] kmalloc-cg-8k 2128KB 2128KB [ 290.526594][ T3946] kmalloc-cg-4k 4912KB 5320KB [ 290.533770][ T3946] kmalloc-cg-2k 1260KB 1284KB [ 290.584329][ T3946] kmalloc-cg-1k 868KB 1024KB [ 290.604764][ T3946] kmalloc-cg-512 2070KB 2148KB [ 290.634529][ T3946] kmalloc-cg-256 40KB 40KB [ 290.653132][ T3946] kmalloc-cg-192 164KB 164KB [ 290.675164][ T3946] kmalloc-cg-128 104KB 104KB [ 290.695974][ T3946] kmalloc-cg-96 20KB 20KB [ 290.702211][ T3946] kmalloc-cg-64 16KB 16KB [ 290.730392][ T3946] kmalloc-cg-32 20KB 20KB [ 290.764726][ T3946] kmalloc-cg-16 79KB 188KB [ 290.783160][ T3946] kmalloc-cg-8 31KB 31KB [ 290.790891][ T3946] kmalloc-8k 9488KB 9584KB [ 290.811767][ T3946] kmalloc-4k 185936KB 186048KB [ 290.825407][ T3946] kmalloc-2k 24840KB 28384KB [ 290.871309][ T3946] kmalloc-1k 36726KB 36784KB [ 290.894748][ T3946] kmalloc-512 41831KB 41848KB [ 290.917613][ T3946] kmalloc-256 4889KB 4944KB [ 290.923786][ T3946] kmalloc-192 1122KB 1572KB [ 290.971699][ T3946] kmalloc-128 1615KB 2012KB [ 290.988616][ T3946] kmalloc-96 1308KB 1312KB [ 290.994798][ T3946] kmalloc-64 3066KB 3964KB [ 291.024567][ T3946] kmalloc-32 799KB 808KB [ 291.040122][ T3946] kmalloc-16 261KB 340KB [ 291.056867][ T3946] kmalloc-8 548KB 593KB [ 291.063020][ T3946] kmem_cache_node 207KB 208KB [ 291.078759][ T3946] kmem_cache 172KB 172KB [ 291.084998][ T3946] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/syz3,task=syz.3.20,pid=5072,uid=0 [ 291.110692][ T3946] Out of memory: Killed process 5073 (syz.3.20) total-vm:44920kB, anon-rss:0kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000 [ 293.145769][ T28] oom_reaper: reaped process 5073 (syz.3.20), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 293.545619][ T28] oom_reaper: reaped process 4947 (syz.2.19), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 293.988298][ T3561] udevd invoked oom-killer: gfp_mask=0x1100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=-1000 [ 294.029160][ T3561] CPU: 1 PID: 3561 Comm: udevd Not tainted syzkaller #0 [ 294.036172][ T3561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 294.046528][ T3561] Call Trace: [ 294.049934][ T3561] [ 294.052895][ T3561] dump_stack_lvl+0x188/0x250 [ 294.057614][ T3561] ? show_regs_print_info+0x20/0x20 [ 294.063228][ T3561] ? load_image+0x400/0x400 [ 294.067792][ T3561] ? local_lock_release+0x170/0x170 [ 294.073080][ T3561] ? __rwlock_init+0x140/0x140 [ 294.077971][ T3561] dump_header+0xd4/0x770 [ 294.082607][ T3561] oom_kill_process+0x20e/0x3d0 [ 294.087506][ T3561] out_of_memory+0xdbe/0x1180 [ 294.092242][ T3561] ? __alloc_pages+0x480/0x480 [ 294.097093][ T3561] ? unreserve_highatomic_pageblock+0x363/0x4d0 [ 294.103464][ T3561] ? unregister_oom_notifier+0x20/0x20 [ 294.109109][ T3561] __alloc_pages_slowpath+0x1dc5/0x28b0 [ 294.114826][ T3561] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 294.120688][ T3561] ? prepare_alloc_pages+0x368/0x5f0 [ 294.126131][ T3561] __alloc_pages+0x340/0x480 [ 294.130887][ T3561] ? zone_statistics+0x170/0x170 [ 294.135954][ T3561] ? __lock_acquire+0x7d10/0x7d10 [ 294.141192][ T3561] ? __rwlock_init+0x140/0x140 [ 294.146051][ T3561] alloc_pages_vma+0x393/0x7c0 [ 294.150965][ T3561] ? __swp_swapcount+0xf5/0x120 [ 294.155848][ T3561] __read_swap_cache_async+0x1b5/0xa70 [ 294.161365][ T3561] swap_cluster_readahead+0x6a3/0x7c0 [ 294.166792][ T3561] ? read_swap_cache_async+0x90/0x90 [ 294.172241][ T3561] swapin_readahead+0xf1/0xac0 [ 294.177054][ T3561] ? rcu_lock_release+0x5/0x20 [ 294.181869][ T3561] ? __lock_acquire+0x7d10/0x7d10 [ 294.186941][ T3561] ? exit_swap_address_space+0x280/0x280 [ 294.192642][ T3561] ? put_swap_device+0x15c/0x200 [ 294.197624][ T3561] ? lookup_swap_cache+0x135/0x440 [ 294.203010][ T3561] ? get_swap_device+0x21b/0x360 [ 294.208004][ T3561] do_swap_page+0x4b6/0x1f40 [ 294.212925][ T3561] ? count_memcg_event_mm+0x324/0x370 [ 294.218395][ T3561] ? __lock_acquire+0x13bc/0x7d10 [ 294.223492][ T3561] handle_mm_fault+0x1b16/0x4410 [ 294.228514][ T3561] ? get_page+0xe0/0xe0 [ 294.232901][ T3561] ? vmacache_find+0x238/0x590 [ 294.237709][ T3561] ? find_vma+0xd2/0x230 [ 294.242246][ T3561] do_user_addr_fault+0x489/0xc80 [ 294.248447][ T3561] exc_page_fault+0x60/0x100 [ 294.253648][ T3561] asm_exc_page_fault+0x22/0x30 [ 294.258719][ T3561] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x40 [ 294.265536][ T3561] Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 01 ca c3 90 90 90 90 90 90 90 0f 01 cb 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 01 ca c3 90 90 90 90 90 90 90 90 90 90 89 d1 83 f8 [ 294.285806][ T3561] RSP: 0000:ffffc90002d7fbe0 EFLAGS: 00050206 [ 294.292361][ T3561] RAX: ffffffff83e40901 RBX: 0000000000000090 RCX: 0000000000000090 [ 294.300739][ T3561] RDX: 0000000000000090 RSI: ffffc90002d7fc60 RDI: 00007ffc4d807580 [ 294.308938][ T3561] RBP: 0000000000000000 R08: ffffc90002d7fcef R09: 1ffff920005aff9d [ 294.316951][ T3561] R10: dffffc0000000000 R11: fffff520005aff9e R12: 00007ffffffff000 [ 294.325139][ T3561] R13: 00007ffc4d807610 R14: ffffc90002d7fc60 R15: 00007ffc4d807580 [ 294.333403][ T3561] ? _copy_to_user+0x61/0x130 [ 294.338140][ T3561] _copy_to_user+0xf0/0x130 [ 294.342693][ T3561] cp_new_stat+0x3c0/0x540 [ 294.347235][ T3561] ? cp_old_stat+0x680/0x680 [ 294.351871][ T3561] ? vfs_fstatat+0x40/0x40 [ 294.356422][ T3561] __x64_sys_newfstatat+0x187/0x200 [ 294.361840][ T3561] ? __ia32_sys_newlstat+0x1c0/0x1c0 [ 294.367361][ T3561] ? lock_chain_count+0x20/0x20 [ 294.372516][ T3561] ? vtime_user_exit+0x2c8/0x3e0 [ 294.377708][ T3561] ? lockdep_hardirqs_on+0x94/0x140 [ 294.382957][ T3561] do_syscall_64+0x4c/0xa0 [ 294.387420][ T3561] ? clear_bhb_loop+0x30/0x80 [ 294.392220][ T3561] ? clear_bhb_loop+0x30/0x80 [ 294.397111][ T3561] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 294.403224][ T3561] RIP: 0033:0x7eff4ff1db0a [ 294.407783][ T3561] Code: Unable to access opcode bytes at RIP 0x7eff4ff1dae0. [ 294.415382][ T3561] RSP: 002b:00007ffc4d807578 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 294.423852][ T3561] RAX: ffffffffffffffda RBX: 0000562d24aad408 RCX: 00007eff4ff1db0a [ 294.431867][ T3561] RDX: 00007ffc4d807580 RSI: 0000562d24a9bef3 RDI: 00000000ffffff9c [ 294.439879][ T3561] RBP: 0000562d61627148 R08: 00063489548db180 R09: 00339c7fe8dcc3ae [ 294.448003][ T3561] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 294.456010][ T3561] R13: 00007ffc4d807580 R14: 0000000000000000 R15: 00063489548db180 [ 294.464211][ T3561] [ 294.627461][ C1] warn_alloc: 276 callbacks suppressed [ 294.627481][ C1] sshd: page allocation failure: order:0, mode:0xa20(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0-1 [ 294.646100][ C1] CPU: 1 PID: 3946 Comm: sshd Not tainted syzkaller #0 [ 294.653185][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 294.663746][ C1] Call Trace: [ 294.667153][ C1] [ 294.670213][ C1] dump_stack_lvl+0x188/0x250 [ 294.674923][ C1] ? rcu_lock_release+0x5/0x20 [ 294.679743][ C1] ? show_regs_print_info+0x20/0x20 [ 294.685057][ C1] ? load_image+0x400/0x400 [ 294.689841][ C1] warn_alloc+0x243/0x320 [ 294.694230][ C1] ? seqcount_lockdep_reader_access+0xce/0x190 [ 294.700774][ C1] ? zone_watermark_ok_safe+0x240/0x240 [ 294.706352][ C1] ? __cpuset_node_allowed+0x3d/0x540 [ 294.711746][ C1] ? wakeup_kswapd+0x46b/0x7a0 [ 294.716618][ C1] __alloc_pages_slowpath+0x2844/0x28b0 [ 294.722542][ C1] ? stack_trace_save+0xa6/0xf0 [ 294.727409][ C1] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 294.733227][ C1] ? __lock_acquire+0x13bc/0x7d10 [ 294.738355][ C1] ? __alloc_pages+0x480/0x480 [ 294.743140][ C1] ? prepare_alloc_pages+0x1e4/0x5f0 [ 294.748651][ C1] __alloc_pages+0x340/0x480 [ 294.753350][ C1] ? zone_statistics+0x170/0x170 [ 294.758310][ C1] ? alloc_pages+0x438/0x550 [ 294.762940][ C1] new_slab+0x2e6/0x4b0 [ 294.767304][ C1] ___slab_alloc+0x80a/0xdd0 [ 294.772031][ C1] ? __alloc_skb+0xf4/0x750 [ 294.776580][ C1] kmem_cache_alloc_node+0x1c3/0x2d0 [ 294.781984][ C1] ? __alloc_skb+0xf4/0x750 [ 294.786688][ C1] ? ktime_get_with_offset+0xff/0x320 [ 294.792091][ C1] __alloc_skb+0xf4/0x750 [ 294.796485][ C1] skb_copy+0x139/0x790 [ 294.800711][ C1] ? __rwlock_init+0x140/0x140 [ 294.805532][ C1] mac80211_hwsim_tx_frame_no_nl+0xce0/0x1600 [ 294.811647][ C1] ? mac80211_hwsim_tx_frame_nl+0xbc0/0xbc0 [ 294.817765][ C1] ? seqcount_lockdep_reader_access+0x18d/0x1d0 [ 294.824071][ C1] ? ktime_get_real_ts64+0x440/0x440 [ 294.829473][ C1] ? mac80211_hwsim_monitor_rx+0x1bf/0x810 [ 294.835482][ C1] mac80211_hwsim_tx_frame+0x1b5/0x200 [ 294.840960][ C1] mac80211_hwsim_beacon_tx+0x4f3/0x920 [ 294.846530][ C1] __iterate_interfaces+0x243/0x500 [ 294.852176][ C1] ? mac80211_hwsim_vendor_cmd_test+0x2f0/0x2f0 [ 294.858431][ C1] ? mac80211_hwsim_vendor_cmd_test+0x2f0/0x2f0 [ 294.864705][ C1] ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 [ 294.871775][ C1] mac80211_hwsim_beacon+0x9b/0x180 [ 294.877124][ C1] ? hw_scan_work+0xed0/0xed0 [ 294.881831][ C1] __hrtimer_run_queues+0x4f2/0xb70 [ 294.887169][ C1] ? hrtimer_interrupt+0x8d0/0x8d0 [ 294.892523][ C1] hrtimer_run_softirq+0x176/0x240 [ 294.897666][ C1] handle_softirqs+0x339/0x830 [ 294.902459][ C1] ? __irq_exit_rcu+0x13b/0x230 [ 294.907567][ C1] ? do_softirq+0x210/0x210 [ 294.912198][ C1] __irq_exit_rcu+0x13b/0x230 [ 294.916896][ C1] ? irq_exit_rcu+0x20/0x20 [ 294.921446][ C1] irq_exit_rcu+0x5/0x20 [ 294.925714][ C1] sysvec_apic_timer_interrupt+0xa0/0xc0 [ 294.931549][ C1] [ 294.934652][ C1] [ 294.937685][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 294.944212][ C1] RIP: 0010:lock_is_held_type+0x68/0x190 [ 294.950044][ C1] Code: 48 8b 1d 6b 93 45 76 83 bb ec 0a 00 00 00 0f 85 df 00 00 00 41 89 f7 49 89 fe 48 c7 04 24 00 00 00 00 9c 8f 04 24 4c 8b 2c 24 48 c7 c7 00 3f 2b 8a e8 4b 0e 00 00 65 ff 05 b4 9c 45 76 83 bb [ 294.969685][ C1] RSP: 0000:ffffc9000335e460 EFLAGS: 00000246 [ 294.975791][ C1] RAX: 0000000000000000 RBX: ffff88801dfd5940 RCX: 38c7ac31afe43700 [ 294.984331][ C1] RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8c31f320 [ 294.992330][ C1] RBP: 00000000ffffffff R08: dffffc0000000000 R09: 1ffffffff203ac18 [ 295.000582][ C1] R10: dffffc0000000000 R11: fffffbfff203ac19 R12: dffffc0000000000 [ 295.008580][ C1] R13: 0000000000000246 R14: ffffffff8c31f320 R15: 00000000ffffffff [ 295.017082][ C1] list_lru_count_one+0x174/0x310 [ 295.022132][ C1] super_cache_count+0x187/0x290 [ 295.027138][ C1] do_shrink_slab+0x8d/0xd00 [ 295.031867][ C1] shrink_slab+0x1cc/0x7a0 [ 295.036362][ C1] ? drop_slab_node+0x180/0x180 [ 295.041258][ C1] ? __might_sleep+0xf0/0xf0 [ 295.045937][ C1] ? mem_cgroup_iter+0x345/0x480 [ 295.051202][ C1] shrink_node+0x110c/0x2610 [ 295.055862][ C1] do_try_to_free_pages+0x606/0x1600 [ 295.061676][ C1] ? try_to_free_pages+0xea0/0xea0 [ 295.066911][ C1] ? __lock_acquire+0x7d10/0x7d10 [ 295.071976][ C1] try_to_free_pages+0x9a1/0xea0 [ 295.076962][ C1] ? reclaim_pages+0x9c0/0x9c0 [ 295.081861][ C1] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 295.088030][ C1] ? psi_task_switch+0x7d0/0x7d0 [ 295.093334][ C1] ? __cpuset_memory_pressure_bump+0x4ad/0x5d0 [ 295.099858][ C1] __alloc_pages_slowpath+0x116a/0x28b0 [ 295.106044][ C1] ? get_page_from_freelist+0x1ca0/0x1ca0 [ 295.112052][ C1] ? prepare_alloc_pages+0x368/0x5f0 [ 295.117393][ C1] __alloc_pages+0x340/0x480 [ 295.122219][ C1] ? zone_statistics+0x170/0x170 [ 295.127265][ C1] ? __lock_acquire+0x7d10/0x7d10 [ 295.132399][ C1] ? __rwlock_init+0x140/0x140 [ 295.137177][ C1] alloc_pages_vma+0x393/0x7c0 [ 295.141965][ C1] ? __swp_swapcount+0xf5/0x120 [ 295.146924][ C1] __read_swap_cache_async+0x1b5/0xa70 [ 295.152691][ C1] swap_cluster_readahead+0x6a3/0x7c0 [ 295.158226][ C1] ? read_swap_cache_async+0x90/0x90 [ 295.163733][ C1] swapin_readahead+0xf1/0xac0 [ 295.168710][ C1] ? rcu_lock_release+0x5/0x20 [ 295.173502][ C1] ? __lock_acquire+0x7d10/0x7d10 [ 295.178717][ C1] ? exit_swap_address_space+0x280/0x280 [ 295.184519][ C1] ? put_swap_device+0x15c/0x200 [ 295.189591][ C1] ? lookup_swap_cache+0x135/0x440 [ 295.194730][ C1] ? get_swap_device+0x21b/0x360 [ 295.199701][ C1] do_swap_page+0x4b6/0x1f40 [ 295.204576][ C1] ? count_memcg_event_mm+0x324/0x370 [ 295.209996][ C1] handle_mm_fault+0x1b16/0x4410 [ 295.214993][ C1] ? get_page+0xe0/0xe0 [ 295.219279][ C1] ? vmacache_find+0x238/0x590 [ 295.224164][ C1] ? find_vma+0xd2/0x230 [ 295.228434][ C1] do_user_addr_fault+0x489/0xc80 [ 295.233497][ C1] exc_page_fault+0x60/0x100 [ 295.238273][ C1] asm_exc_page_fault+0x22/0x30 [ 295.243167][ C1] RIP: 0010:do_sys_poll+0xf56/0x11a0 [ 295.248563][ C1] Code: 8b 74 24 30 4c 8d 76 12 48 8b 54 24 68 48 83 c2 06 45 31 ff 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 75 2b 42 0f b7 44 fe 12 <66> 89 02 49 89 d4 44 39 fb 74 3b e8 9a df aa ff 49 ff c7 49 83 c6 [ 295.268946][ C1] RSP: 0000:ffffc9000335f860 EFLAGS: 00050246 [ 295.275335][ C1] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88801dfd5940 [ 295.283496][ C1] RDX: 0000563e0bbbc1e6 RSI: ffffc9000335fc70 RDI: 0000000000000000 [ 295.291594][ C1] RBP: ffffc9000335fe10 R08: ffff8880248e0cff R09: 1ffff1100491c19f [ 295.299912][ C1] R10: dffffc0000000000 R11: ffffed100491c1a0 R12: 0000563e0bbbc1f0 [ 295.308126][ C1] R13: dffffc0000000000 R14: ffffc9000335fc82 R15: 0000000000000000 [ 295.316371][ C1] ? do_sys_poll+0x6f1/0x11a0 [ 295.321188][ C1] ? poll_select_finish+0x620/0x620 [ 295.326514][ C1] ? __ia32_compat_sys_ppoll_time64+0x320/0x320 [ 295.332950][ C1] ? __ia32_compat_sys_ppoll_time64+0x320/0x320 [ 295.339468][ C1] ? set_user_sigmask+0x15d/0x1c0 [ 295.344516][ C1] ? sigprocmask+0x190/0x190 [ 295.349298][ C1] __se_sys_ppoll+0x206/0x2a0 [ 295.353992][ C1] ? lockdep_hardirqs_on_prepare+0x409/0x770 [ 295.359992][ C1] ? __x64_sys_ppoll+0xc0/0xc0 [ 295.364774][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 295.370329][ C1] ? __x64_sys_ppoll+0x1c/0xc0 [ 295.375190][ C1] do_syscall_64+0x4c/0xa0 [ 295.379711][ C1] ? clear_bhb_loop+0x30/0x80 [ 295.384493][ C1] ? clear_bhb_loop+0x30/0x80 [ 295.389276][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 295.395282][ C1] RIP: 0033:0x7facef7ad407 [ 295.399904][ C1] Code: Unable to access opcode bytes at RIP 0x7facef7ad3dd. [ 295.407481][ C1] RSP: 002b:00007ffd13dd6d40 EFLAGS: 00000202 ORIG_RAX: 000000000000010f [ 295.415929][ C1] RAX: ffffffffffffffda RBX: 00007facef6b9300 RCX: 00007facef7ad407 [ 295.423950][ C1] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000563e0bbbc1e0 [ 295.431939][ C1] RBP: 0000000000000002 R08: 0000000000000008 R09: 0000000000000000 [ 295.440113][ C1] R10: 00007ffd13dd7010 R11: 0000000000000202 R12: 0000000000000064 [ 295.448110][ C1] R13: 0000000000000000 R14: 0000563e003f6004 R15: 0000000000000002 [ 295.456138][ C1] [ 295.459227][ C1] Mem-Info: [ 295.462377][ C1] active_anon:0 inactive_anon:0 isolated_anon:0 [ 295.462377][ C1] active_file:63 inactive_file:7 isolated_file:0 [ 295.462377][ C1] unevictable:768 dirty:0 writeback:0 [ 295.462377][ C1] slab_reclaimable:16045 slab_unreclaimable:114708 [ 295.462377][ C1] mapped:1 shmem:768 pagetables:207 bounce:0 [ 295.462377][ C1] kernel_misc_reclaimable:0 [ 295.462377][ C1] free:9780 free_pcp:524 free_cma:0 [ 295.503347][ C1] Node 0 active_anon:0kB inactive_anon:0kB active_file:188kB inactive_file:20kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:10992kB pagetables:788kB all_unreclaimable? yes [ 295.533106][ C1] Node 1 active_anon:0kB inactive_anon:0kB active_file:64kB inactive_file:8kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:112kB pagetables:40kB all_unreclaimable? yes [ 295.562124][ C1] Node 0 DMA free:5592kB min:204kB low:252kB high:300kB 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 [ 295.589099][ C1] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 295.594876][ C1] Node 0 DMA32 free:12876kB min:34784kB low:43480kB high:52176kB reserved_highatomic:28672KB active_anon:0kB inactive_anon:0kB active_file:188kB inactive_file:20kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:828kB local_pcp:468kB free_cma:0kB [ 295.623570][ C1] lowmem_reserve[]: 0 0 0 0 0 [ 295.628738][ C1] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 295.654516][ C1] lowmem_reserve[]: 0 0 0 0 0 [ 295.659282][ C1] Node 1 Normal free:20652kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:64kB inactive_file:24kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:1268kB local_pcp:648kB free_cma:0kB [ 295.688096][ C1] lowmem_reserve[]: 0 0 0 0 0 [ 295.692825][ C1] Node 0 DMA: 0*4kB 1*8kB (U) 1*16kB (U) 2*32kB (U) 0*64kB 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 2*2048kB (UM) 0*4096kB = 5592kB [ 295.707220][ C1] Node 0 DMA32: 3*4kB (M) 32*8kB (UM) 0*16kB 180*32kB (UME) 39*64kB (UE) 20*128kB (UE) 7*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12876kB [ 295.722419][ C1] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 295.734108][ C1] Node 1 Normal: 4*4kB (ME) 12*8kB (ME) 9*16kB (ME) 26*32kB (UME) 15*64kB (M) 9*128kB (UME) 5*256kB (UM) 9*512kB (M) 11*1024kB (M) 0*2048kB 0*4096kB = 20352kB [ 295.750270][ C1] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 295.759858][ C1] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 295.769315][ C1] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 295.779017][ C1] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 295.788352][ C1] 867 total pagecache pages [ 295.792872][ C1] 0 pages in swap cache [ 295.797046][ C1] Swap cache stats: add 41420, delete 41420, find 241/939 [ 295.804174][ C1] Free swap = 111636kB [ 295.808360][ C1] Total swap = 124996kB [ 295.812649][ C1] 2097051 pages RAM [ 295.816473][ C1] 0 pages HighMem/MovableOnly [ 295.821156][ C1] 411492 pages reserved [ 295.825331][ C1] 0 pages cma reserved [ 295.829433][ C1] slab_out_of_memory: 1 callbacks suppressed [ 295.829445][ C1] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 295.843685][ C1] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 295.854410][ C1] node 0: slabs: 5229, objs: 62748, free: 0 [ 295.860592][ C1] node 1: slabs: 1279, objs: 15348, free: 38 [ 295.868286][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 295.868318][ C0] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 295.876347][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 295.884349][ C0] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 295.894887][ T23] node 0: slabs: 5232, objs: 62784, free: 0 [ 295.905514][ C0] node 0: slabs: 5232, objs: 62784, free: 0 [ 295.911612][ T23] node 1: slabs: 1279, objs: 15348, free: 38 [ 295.917887][ C0] node 1: slabs: 1279, objs: 15348, free: 38 [ 295.924275][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 295.930528][ T4326] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 295.938487][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 295.938512][ T23] node 0: slabs: 5232, objs: 62784, free: 0 [ 295.938531][ T23] node 1: slabs: 1279, objs: 15348, free: 38 [ 295.938565][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 295.938582][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 295.938602][ T23] node 0: slabs: 5232, objs: 62784, free: 0 [ 295.938620][ T23] node 1: slabs: 1279, objs: 15348, free: 38 [ 295.938653][ T23] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 295.938668][ T23] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 295.938688][ T23] node 0: slabs: 5232, objs: 62784, free: 0 [ 295.938705][ T23] node 1: slabs: 1279, objs: 15348, free: 38 [ 295.939115][ T27] INFO: task syz.1.18:5070 blocked for more than 144 seconds. [ 295.946813][ T4326] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 295.946838][ T4326] node 0: slabs: 5232, objs: 62784, free: 0 [ 295.946857][ T4326] node 1: slabs: 1279, objs: 15348, free: 38 [ 295.961358][ T5213] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 295.964077][ T4326] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 295.970192][ T5213] cache: kmalloc-96, object size: 96, buffer size: 128, default order: 0, min order: 0 [ 295.978473][ T4326] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 295.989443][ T5213] node 0: slabs: 236, objs: 7552, free: 0 [ 295.995417][ T4326] node 0: slabs: 5233, objs: 62796, free: 0 [ 296.001608][ T5213] node 1: slabs: 104, objs: 3328, free: 27 [ 296.009709][ T4326] node 1: slabs: 1279, objs: 15348, free: 38 [ 296.009816][ T4326] SLUB: Unable to allocate memory on node -1, gfp=0xa20(GFP_ATOMIC) [ 296.086515][ T27] Not tainted syzkaller #0 [ 296.090508][ T4326] cache: skbuff_head_cache, object size: 232, buffer size: 320, default order: 0, min order: 0 [ 296.136311][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 296.139125][ T4326] node 0: slabs: 5234, objs: 62808, free: 0 [ 296.164809][ T4326] node 1: slabs: 1279, objs: 15348, free: 38 [ 296.196013][ T27] task:syz.1.18 state:D stack:27824 pid: 5070 ppid: 4801 flags:0x00104006 [ 296.205309][ T27] Call Trace: [ 296.238434][ T27] [ 296.239853][ T3561] Mem-Info: [ 296.241447][ T27] __schedule+0x11ef/0x43c0 [ 296.244569][ T3561] active_anon:0 inactive_anon:0 isolated_anon:0 [ 296.244569][ T3561] active_file:43 inactive_file:35 isolated_file:33 [ 296.244569][ T3561] unevictable:768 dirty:0 writeback:0 [ 296.244569][ T3561] slab_reclaimable:16045 slab_unreclaimable:114748 [ 296.244569][ T3561] mapped:1 shmem:768 pagetables:207 bounce:0 [ 296.244569][ T3561] kernel_misc_reclaimable:0 [ 296.244569][ T3561] free:9780 free_pcp:497 free_cma:0 [ 296.268488][ T27] ? __lock_acquire+0x12e8/0x7d10 [ 296.292718][ T3561] Node 0 active_anon:0kB inactive_anon:0kB active_file:172kB inactive_file:64kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:10992kB pagetables:788kB all_unreclaimable? yes [ 296.328220][ T27] ? rcu_lock_acquire+0x30/0x30 [ 296.333188][ T27] ? __mutex_lock_common+0xcf7/0x2400 [ 296.342643][ T27] ? release_firmware_map_entry+0x190/0x190 [ 296.345227][ T3561] Node 1 active_anon:0kB inactive_anon:0kB active_file:100kB inactive_file:0kB unevictable:1536kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:1536kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB kernel_stack:112kB pagetables:40kB all_unreclaimable? yes [ 296.348719][ T27] ? __lock_acquire+0x7d10/0x7d10 [ 296.348749][ T27] ? __mutex_trylock_common+0x86/0x260 [ 296.348777][ T27] ? rcu_lock_release+0x20/0x20 [ 296.348808][ T27] schedule+0x11b/0x1e0 [ 296.348841][ T27] schedule_preempt_disabled+0xf/0x20 [ 296.348866][ T27] __mutex_lock_common+0xcfc/0x2400 [ 296.348927][ T27] ? vivid_fop_release+0x66/0xad0 [ 296.474339][ T3561] Node 0 DMA free:5592kB min:204kB low:252kB high:300kB 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 [ 296.537519][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 296.542812][ T27] ? memset+0x1e/0x40 [ 296.550799][ T3561] lowmem_reserve[]: 0 2539 2540 2540 2540 [ 296.556119][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 296.561854][ T27] ? __fsnotify_parent+0x72a/0x820 [ 296.568787][ T3561] Node 0 DMA32 free:12800kB min:34784kB low:43480kB high:52176kB reserved_highatomic:28672KB active_anon:0kB inactive_anon:0kB active_file:224kB inactive_file:0kB unevictable:1536kB writepending:0kB present:3129332kB managed:2606544kB mlocked:0kB bounce:0kB free_pcp:688kB local_pcp:440kB free_cma:0kB [ 296.586097][ T27] mutex_lock_nested+0x17/0x20 [ 296.605853][ T27] vivid_fop_release+0x66/0xad0 [ 296.615988][ T27] ? vivid_create_queue+0x860/0x860 [ 296.621257][ T27] v4l2_release+0x1f9/0x390 [ 296.625817][ T27] ? v4l2_open+0x360/0x360 [ 296.639803][ T27] __fput+0x234/0x930 [ 296.643882][ T27] task_work_run+0x125/0x1a0 [ 296.654461][ T27] get_signal+0x122e/0x12d0 [ 296.682988][ T27] ? kasan_save_stack+0x4b/0x60 [ 296.692850][ T27] ? kasan_save_stack+0x35/0x60 [ 296.710571][ T27] ? kasan_record_aux_stack+0xb8/0x100 [ 296.733553][ T27] ? task_work_add+0x2f/0x1d0 [ 296.738557][ T3561] lowmem_reserve[]: 0 0 0 0 0 [ 296.743324][ T3561] Node 0 Normal free:0kB min:8kB low:8kB high:8kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:660kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 296.773465][ T27] ? fput_many+0xde/0x1a0 [ 296.785953][ T27] ? __se_sys_ioctl+0x157/0x170 [ 296.790886][ T27] ? do_syscall_64+0x4c/0xa0 [ 296.795641][ T27] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 296.830640][ T27] arch_do_signal_or_restart+0xe7/0x12c0 [ 296.845243][ T27] ? get_sigframe_size+0x10/0x10 [ 296.856172][ T3561] lowmem_reserve[]: 0 0 0 0 0 [ 296.861016][ T3561] Node 1 Normal free:20620kB min:55108kB low:68884kB high:82660kB reserved_highatomic:45056KB active_anon:0kB inactive_anon:0kB active_file:96kB inactive_file:0kB unevictable:1536kB writepending:0kB present:4194304kB managed:4119672kB mlocked:0kB bounce:0kB free_pcp:696kB local_pcp:472kB free_cma:0kB [ 296.906089][ T27] ? kick_process+0xd4/0x140 [ 296.910769][ T27] ? exit_to_user_mode_loop+0x3b/0x130 [ 296.933567][ T27] exit_to_user_mode_loop+0x9e/0x130 [ 296.945827][ T27] exit_to_user_mode_prepare+0xee/0x180 [ 296.969043][ T27] syscall_exit_to_user_mode+0x16/0x40 [ 296.974855][ T27] do_syscall_64+0x58/0xa0 [ 296.992919][ T3561] lowmem_reserve[]: 0 0 0 0 0 [ 297.000747][ T27] ? clear_bhb_loop+0x30/0x80 [ 297.004868][ T3561] Node 0 DMA: [ 297.005485][ T27] ? clear_bhb_loop+0x30/0x80 [ 297.022261][ T3561] 0*4kB 1*8kB (U) 1*16kB (U) 2*32kB (U) 0*64kB 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 2*2048kB (UM) 0*4096kB = 5592kB [ 297.045968][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 297.052164][ T27] RIP: 0033:0x7f31239e6679 [ 297.060418][ T3561] Node 0 DMA32: 4*4kB (UM) 3*8kB (UM) 1*16kB (U) 175*32kB (UME) 39*64kB (UE) 20*128kB (UE) 7*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 12504kB [ 297.077962][ T27] RSP: 002b:00007f312304a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 297.107085][ T27] RAX: fffffffffffffe00 RBX: 00007f3123c51fa0 RCX: 00007f31239e6679 [ 297.115136][ T27] RDX: 0000200000000100 RSI: 00000000c100565c RDI: 0000000000000003 [ 297.126429][ T3561] Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB [ 297.155883][ T27] RBP: 00007f3123a79ee0 R08: 0000000000000000 R09: 0000000000000000 [ 297.164392][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 297.175952][ T3561] Node 1 Normal: 5*4kB (UME) 13*8kB (UME) 9*16kB (ME) 26*32kB (UME) 17*64kB (UM) 8*128kB (ME) 4*256kB (M) 10*512kB (UM) 11*1024kB (M) 0*2048kB 0*4096kB = 20620kB [ 297.231886][ T3561] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 297.250822][ T27] R13: 00007f3123c52038 R14: 00007f3123c51fa0 R15: 00007fff12c4c798 [ 297.267964][ T3561] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 297.278598][ T27] [ 297.286021][ T27] INFO: task syz.3.20:5073 blocked for more than 145 seconds. [ 297.316074][ T3561] Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 297.316252][ T27] Not tainted syzkaller #0 [ 297.325701][ T3561] Node 1 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 297.358815][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 297.366763][ T3561] 867 total pagecache pages [ 297.372591][ T3561] 0 pages in swap cache [ 297.379726][ T27] task:syz.3.20 state:D stack:27824 pid: 5073 ppid: 4804 flags:0x00104006 [ 297.388342][ T3561] Swap cache stats: add 41420, delete 41420, find 241/939 [ 297.404188][ T27] Call Trace: [ 297.406260][ T3561] Free swap = 111636kB [ 297.411704][ T3561] Total swap = 124996kB [ 297.416085][ T27] [ 297.419084][ T27] __schedule+0x11ef/0x43c0 [ 297.423662][ T27] ? rcu_lock_acquire+0x30/0x30 [ 297.440736][ T3561] 2097051 pages RAM [ 297.444607][ T3561] 0 pages HighMem/MovableOnly [ 297.453610][ T27] ? __mutex_lock_common+0xcf7/0x2400 [ 297.473651][ T27] ? release_firmware_map_entry+0x190/0x190 [ 297.491041][ T3561] 411492 pages reserved [ 297.512749][ T27] ? __lock_acquire+0x7d10/0x7d10 [ 297.514115][ T3561] 0 pages cma reserved [ 297.519783][ T27] ? __mutex_trylock_common+0x86/0x260 [ 297.545950][ T3561] Unreclaimable slab info: [ 297.550446][ T3561] Name Used Total [ 297.556047][ T27] ? rcu_lock_release+0x20/0x20 [ 297.561685][ T27] schedule+0x11b/0x1e0 [ 297.565880][ T27] schedule_preempt_disabled+0xf/0x20 [ 297.579738][ T3561] pid_2 18KB 18KB [ 297.596050][ T27] __mutex_lock_common+0xcfc/0x2400 [ 297.602100][ T27] ? v4l2_release+0x1b9/0x390 [ 297.628309][ T3561] bio-320 7KB 7KB [ 297.634469][ T3561] zswap_entry 3391KB 3391KB [ 297.646052][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 297.651521][ T27] ? __fsnotify_parent+0x72a/0x820 [ 297.661226][ T3561] batadv_tt_change_cache 8KB 8KB [ 297.674869][ T27] ? fsnotify_set_children_dentry_flags+0x220/0x220 [ 297.683347][ T3561] batadv_tl_cache 8KB 8KB [ 297.696985][ T27] ? vivid_create_queue+0x860/0x860 [ 297.717330][ T3561] TIPC 63KB 63KB [ 297.723668][ T3561] SCTPv6 63KB 63KB [ 297.737497][ T27] mutex_lock_nested+0x17/0x20 [ 297.742343][ T27] v4l2_release+0x1b9/0x390 [ 297.763750][ T3561] DCCPv6 59KB 59KB [ 297.770876][ T27] ? v4l2_open+0x360/0x360 [ 297.775351][ T27] __fput+0x234/0x930 [ 297.794299][ T3561] DCCP 61KB 61KB [ 297.809480][ T27] task_work_run+0x125/0x1a0 [ 297.814262][ T27] get_signal+0x122e/0x12d0 [ 297.826057][ T3561] RXRPC 61KB 61KB [ 297.832515][ T3561] rxrpc_call_jar 236KB 252KB [ 297.853858][ T27] ? kasan_quarantine_put+0xd4/0x220 [ 297.869016][ T27] ? kasan_save_stack+0x4b/0x60 [ 297.873962][ T27] ? kasan_save_stack+0x35/0x60 [ 297.887421][ T3561] bridge_fdb_cache 19KB 19KB [ 297.893825][ T3561] MPTCPv6 61KB 61KB [ 297.916028][ T27] ? kasan_record_aux_stack+0xb8/0x100 [ 297.921574][ T27] ? task_work_add+0x2f/0x1d0 [ 297.928990][ T3561] fib6_nodes 192KB 192KB [ 297.935121][ T3561] ip6_dst_cache 214KB 510KB [ 297.965786][ T27] ? fput_many+0xde/0x1a0 [ 297.975957][ T27] ? __se_sys_ioctl+0x157/0x170 [ 297.975992][ T3561] RAWv6 146KB 246KB [ 297.980891][ T27] ? do_syscall_64+0x4c/0xa0 [ 297.995075][ T3561] UDPv6 128KB 128KB [ 298.005227][ T27] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 298.014427][ T3561] tw_sock_TCPv6 7KB 7KB [ 298.022088][ T27] arch_do_signal_or_restart+0xe7/0x12c0 [ 298.026201][ T3561] TCPv6 95KB 95KB [ 298.034330][ T3561] nf_conntrack 39KB 39KB [ 298.036195][ T27] ? get_sigframe_size+0x10/0x10 [ 298.045495][ T27] ? kick_process+0xd4/0x140 [ 298.054060][ T3561] wg_peer 152KB 152KB [ 298.063270][ T27] ? exit_to_user_mode_loop+0x3b/0x130 [ 298.069306][ T3561] allowedips_node 19KB 19KB [ 298.076046][ T27] exit_to_user_mode_loop+0x9e/0x130 [ 298.081749][ T27] exit_to_user_mode_prepare+0xee/0x180 [ 298.082126][ T3561] t10_alua_lu_gp_cache 3KB 3KB [ 298.107600][ T3561] sd_ext_cdb 3KB 3KB [ 298.115244][ T3561] scsi_sense_cache 1348KB 1348KB [ 298.136756][ T3561] virtio_scsi_cmd 16KB 16KB [ 298.139560][ T27] syscall_exit_to_user_mode+0x16/0x40 [ 298.162308][ T27] do_syscall_64+0x58/0xa0 [ 298.166139][ T3561] bio-136 88KB 88KB [ 298.173030][ T3561] sgpool-128 29KB 29KB [ 298.176047][ T27] ? clear_bhb_loop+0x30/0x80 [ 298.184138][ T27] ? clear_bhb_loop+0x30/0x80 [ 298.203628][ T3561] sgpool-64 63KB 63KB [ 298.220564][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 298.228172][ T3561] sgpool-32 294KB 378KB [ 298.234309][ T3561] sgpool-16 135KB 135KB [ 298.240955][ T27] RIP: 0033:0x7feb4c0e0679 [ 298.245847][ T27] RSP: 002b:00007feb4b744028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 298.264155][ T3561] sgpool-8 93KB 93KB [ 298.266771][ T27] RAX: fffffffffffffe00 RBX: 00007feb4c34bfa0 RCX: 00007feb4c0e0679 [ 298.286008][ T3561] bio-224 3KB 3KB [ 298.292154][ T3561] mqueue_inode_cache 60KB 60KB [ 298.296168][ T27] RDX: 0000200000000100 RSI: 00000000c100565c RDI: 0000000000000003 [ 298.316275][ T27] RBP: 00007feb4c173ee0 R08: 0000000000000000 R09: 0000000000000000 [ 298.324355][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 298.324627][ T3561] f2fs_bio_post_read_ctx 16KB 16KB [ 298.379646][ T3561] jfs_mp 7KB 7KB [ 298.395942][ T27] R13: 00007feb4c34c038 R14: 00007feb4c34bfa0 R15: 00007fffc2e988b8 [ 298.404176][ T27] [ 298.406291][ T3561] cifs_small_rq 16KB 16KB [ 298.414161][ T3561] cifs_request 67KB 67KB [ 298.432250][ T3561] cifs_mpx_ids 4KB 4KB [ 298.442583][ T27] INFO: task syz.4.21:5076 blocked for more than 147 seconds. [ 298.456025][ T3561] nfs_commit_data 15KB 15KB [ 298.462159][ T3561] nfs_write_data 47KB 47KB [ 298.468325][ T27] Not tainted syzkaller #0 [ 298.473709][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 298.486894][ T3561] jbd2_inode 7KB 7KB [ 298.493288][ T3561] ext4_system_zone 3KB 3KB [ 298.499808][ T3561] ext4_io_end_vec 7KB 7KB [ 298.506109][ T3561] ext4_bio_post_read_ctx 15KB 15KB [ 298.512684][ T3561] pid_namespace 7KB 7KB [ 298.519990][ T3561] rpc_buffers 31KB 31KB [ 298.526278][ T27] task:syz.4.21 state:D stack:27824 pid: 5076 ppid: 4807 flags:0x00104006 [ 298.535884][ T27] Call Trace: [ 298.535983][ T3561] rpc_tasks 3KB 3KB [ 298.545653][ T3561] UNIX-STREAM 384KB 384KB [ 298.551942][ T27] [ 298.554931][ T27] __schedule+0x11ef/0x43c0 [ 298.561614][ T27] ? rcu_lock_acquire+0x30/0x30 [ 298.566718][ T3561] UNIX 326KB 416KB [ 298.572839][ T3561] MPTCP 63KB 63KB [ 298.579202][ T27] ? __mutex_lock_common+0xcf7/0x2400 [ 298.584737][ T27] ? release_firmware_map_entry+0x190/0x190 [ 298.591117][ T3561] request_sock_subflow_v4 7KB 7KB [ 298.604441][ T27] ? __lock_acquire+0x7d10/0x7d10 [ 298.635972][ T27] ? __mutex_trylock_common+0x86/0x260 [ 298.641527][ T27] ? rcu_lock_release+0x20/0x20 [ 298.646611][ T3561] tcp_bind_bucket 8KB 8KB [ 298.652747][ T3561] ip_fib_trie 28KB 28KB [ 298.677928][ T27] schedule+0x11b/0x1e0 [ 298.682262][ T27] schedule_preempt_disabled+0xf/0x20 [ 298.694328][ T3561] ip_fib_alias 106KB 106KB [ 298.713597][ T3561] ip_dst_cache 28KB 28KB [ 298.725955][ T27] __mutex_lock_common+0xcfc/0x2400 [ 298.731537][ T27] ? v4l2_release+0x1b9/0x390 [ 298.747464][ T3561] RAW 123KB 123KB [ 298.753610][ T3561] UDP 154KB 154KB [ 298.765968][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 298.771250][ T27] ? __fsnotify_parent+0x72a/0x820 [ 298.792296][ T3561] tw_sock_TCP 7KB 7KB [ 298.808191][ T27] ? fsnotify_set_children_dentry_flags+0x220/0x220 [ 298.814875][ T27] ? vivid_create_queue+0x860/0x860 [ 298.827045][ T3561] request_sock_TCP 15KB 15KB [ 298.833265][ T3561] TCP 60KB 60KB [ 298.856071][ T27] mutex_lock_nested+0x17/0x20 [ 298.860922][ T27] v4l2_release+0x1b9/0x390 [ 298.865487][ T27] ? v4l2_open+0x360/0x360 [ 298.878098][ T3561] hugetlbfs_inode_cache 30KB 30KB [ 298.884599][ T3561] fscache_cookie_jar 15KB 15KB [ 298.913758][ T27] __fput+0x234/0x930 [ 298.925953][ T3561] bio-256 11KB 11KB [ 298.936123][ T27] task_work_run+0x125/0x1a0 [ 298.940806][ T27] get_signal+0x122e/0x12d0 [ 298.951373][ T3561] ep_head 16KB 16KB [ 298.954807][ T27] ? kasan_quarantine_put+0xd4/0x220 [ 298.963191][ T3561] eventpoll_pwq 43KB 43KB [ 298.968868][ T27] ? kasan_save_stack+0x4b/0x60 [ 298.974338][ T27] ? kasan_save_stack+0x35/0x60 [ 298.976469][ T3561] eventpoll_epi 78KB 78KB [ 298.985326][ T3561] inotify_inode_mark 19KB 19KB [ 298.996065][ T27] ? kasan_record_aux_stack+0xb8/0x100 [ 299.001758][ T27] ? task_work_add+0x2f/0x1d0 [ 299.010690][ T3561] bio_crypt_ctx 7KB 7KB [ 299.016044][ T27] ? fput_many+0xde/0x1a0 [ 299.021163][ T27] ? __se_sys_ioctl+0x157/0x170 [ 299.026258][ T3561] request_queue 584KB 769KB [ 299.026303][ T3561] blkdev_ioc 18KB 18KB [ 299.046031][ T27] ? do_syscall_64+0x4c/0xa0 [ 299.050785][ T27] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 299.056387][ T3561] bio-200 154KB 191KB [ 299.063113][ T3561] biovec-max 386KB 386KB [ 299.076002][ T3561] biovec-64 406KB 551KB [ 299.082534][ T3561] biovec-16 78KB 78KB [ 299.101860][ T3561] bio_integrity_payload 3KB 3KB [ 299.106087][ T27] arch_do_signal_or_restart+0xe7/0x12c0 [ 299.114292][ T27] ? get_sigframe_size+0x10/0x10 [ 299.131138][ T3561] user_namespace 15KB 15KB [ 299.154847][ T3561] uid_cache 7KB 7KB [ 299.168310][ T27] ? kick_process+0xd4/0x140 [ 299.169936][ T3561] dmaengine-unmap-256 30KB 30KB [ 299.173427][ T27] ? exit_to_user_mode_loop+0x3b/0x130 [ 299.204311][ T27] exit_to_user_mode_loop+0x9e/0x130 [ 299.209627][ T3561] dmaengine-unmap-128 15KB 15KB [ 299.223537][ T27] exit_to_user_mode_prepare+0xee/0x180 [ 299.236940][ T27] syscall_exit_to_user_mode+0x16/0x40 [ 299.242490][ T27] do_syscall_64+0x58/0xa0 [ 299.246184][ T3561] dmaengine-unmap-16 4KB 4KB [ 299.253505][ T3561] dmaengine-unmap-2 4KB 4KB [ 299.283610][ T27] ? clear_bhb_loop+0x30/0x80 [ 299.288406][ T3561] QIPCRTR 31KB 31KB [ 299.294690][ T3561] audit_buffer 3KB 3KB [ 299.306132][ T27] ? clear_bhb_loop+0x30/0x80 [ 299.310883][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 299.330892][ T3561] skbuff_ext_cache 48KB 48KB [ 299.347631][ T27] RIP: 0033:0x7fa2795e4679 [ 299.352123][ T27] RSP: 002b:00007fa278c48028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 299.362977][ T3561] skbuff_fclone_cache 210KB 247KB [ 299.370612][ T3561] skbuff_head_cache 24779KB 24791KB [ 299.396009][ T27] RAX: fffffffffffffe00 RBX: 00007fa27984ffa0 RCX: 00007fa2795e4679 [ 299.404235][ T27] RDX: 0000200000000100 RSI: 00000000c100565c RDI: 0000000000000003 [ 299.412628][ T3561] configfs_dir_cache 8KB 8KB [ 299.424103][ T3561] file_lock_cache 90KB 90KB [ 299.436044][ T3561] file_lock_ctx 15KB 15KB [ 299.448661][ T27] RBP: 00007fa279677ee0 R08: 0000000000000000 R09: 0000000000000000 [ 299.464571][ T3561] fsnotify_mark_connector 16KB 16KB [ 299.472117][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 299.485958][ T3561] taskstats 15KB 15KB [ 299.492207][ T3561] proc_dir_entry 953KB 956KB [ 299.501730][ T27] R13: 00007fa279850038 R14: 00007fa27984ffa0 R15: 00007ffffb1e35b8 [ 299.533544][ T27] [ 299.549692][ T27] INFO: task syz.0.17:5080 blocked for more than 148 seconds. [ 299.557652][ T3561] pde_opener 19KB 19KB [ 299.563864][ T3561] seq_file 56KB 75KB [ 299.581386][ T27] Not tainted syzkaller #0 [ 299.590437][ T3561] sigqueue 129KB 149KB [ 299.602386][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 299.606096][ T3561] shmem_inode_cache 7145KB 7244KB [ 299.635969][ T27] task:syz.0.17 state:D stack:27824 pid: 5080 ppid: 4791 flags:0x00004006 [ 299.646862][ T3561] kernfs_iattrs_cache 7KB 7KB [ 299.653451][ T3561] kernfs_node_cache 30995KB 31216KB [ 299.675974][ T27] Call Trace: [ 299.679336][ T27] [ 299.680619][ T3561] mnt_cache 206KB 220KB [ 299.682311][ T27] __schedule+0x11ef/0x43c0 [ 299.725957][ T3561] filp 293KB 967KB [ 299.732275][ T3561] names_cache 463KB 743KB [ 299.743774][ T27] ? rcu_lock_acquire+0x30/0x30 [ 299.766224][ T27] ? __mutex_lock_common+0xcf7/0x2400 [ 299.769781][ T3561] net_namespace 185KB 212KB [ 299.771674][ T27] ? release_firmware_map_entry+0x190/0x190 [ 299.807576][ T27] ? __lock_acquire+0x7d10/0x7d10 [ 299.807848][ T3561] iint_cache 48KB 48KB [ 299.812947][ T27] ? __mutex_trylock_common+0x86/0x260 [ 299.847551][ T27] ? rcu_lock_release+0x20/0x20 [ 299.853188][ T27] schedule+0x11b/0x1e0 [ 299.859751][ T3561] lsm_inode_cache 1790KB 1940KB [ 299.865886][ T3561] lsm_file_cache 202KB 334KB [ 299.884636][ T3561] key_jar 15KB 15KB [ 299.898168][ T27] schedule_preempt_disabled+0xf/0x20 [ 299.904007][ T27] __mutex_lock_common+0xcfc/0x2400 [ 299.914409][ T3561] uts_namespace 15KB 15KB [ 299.934607][ T27] ? v4l2_release+0x1b9/0x390 [ 299.937053][ T3561] nsproxy 19KB 19KB [ 299.945660][ T3561] vm_area_struct 541KB 723KB [ 299.953126][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 299.968921][ T27] ? __fsnotify_parent+0x72a/0x820 [ 299.974222][ T27] ? fsnotify_set_children_dentry_flags+0x220/0x220 [ 299.985954][ T3561] fs_cache 108KB 108KB [ 299.992091][ T3561] files_cache 368KB 382KB [ 300.011940][ T27] ? vivid_create_queue+0x860/0x860 [ 300.036389][ T3561] signal_cache 901KB 2099KB [ 300.042717][ T3561] sighand_cache 901KB 901KB [ 300.046200][ T27] mutex_lock_nested+0x17/0x20 [ 300.053678][ T27] v4l2_release+0x1b9/0x390 [ 300.082087][ T3561] task_struct 2975KB 4224KB [ 300.084472][ T27] ? v4l2_open+0x360/0x360 [ 300.111352][ T27] __fput+0x234/0x930 [ 300.115784][ T27] task_work_run+0x125/0x1a0 [ 300.117520][ T3561] cred_jar 165KB 416KB [ 300.136722][ T27] get_signal+0x122e/0x12d0 [ 300.144549][ T3561] anon_vma_chain 263KB 370KB [ 300.163133][ T27] ? kasan_quarantine_put+0xd4/0x220 [ 300.176110][ T3561] anon_vma 158KB 195KB [ 300.182332][ T3561] pid 138KB 356KB [ 300.194385][ T27] ? kasan_save_stack+0x4b/0x60 [ 300.200214][ T27] ? kasan_save_stack+0x35/0x60 [ 300.205401][ T27] ? kasan_record_aux_stack+0xb8/0x100 [ 300.220136][ T3561] Acpi-Operand 204KB 237KB [ 300.234553][ T27] ? task_work_add+0x2f/0x1d0 [ 300.239589][ T3561] Acpi-ParseExt 23KB 23KB [ 300.245706][ T3561] Acpi-Parse 126KB 126KB [ 300.253203][ T27] ? fput_many+0xde/0x1a0 [ 300.270319][ T27] ? __se_sys_ioctl+0x157/0x170 [ 300.275700][ T27] ? do_syscall_64+0x4c/0xa0 [ 300.284187][ T3561] Acpi-State 196KB 232KB [ 300.303398][ T27] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 300.311904][ T3561] Acpi-Namespace 28KB 28KB [ 300.333449][ T27] arch_do_signal_or_restart+0xe7/0x12c0 [ 300.334823][ T3561] numa_policy 3KB 3KB [ 300.356628][ T27] ? get_sigframe_size+0x10/0x10 [ 300.365959][ T3561] perf_event 31KB 31KB [ 300.372358][ T3561] trace_event_file 432KB 432KB [ 300.376126][ T27] ? kick_process+0xd4/0x140 [ 300.383162][ T27] ? exit_to_user_mode_loop+0x3b/0x130 [ 300.398639][ T3561] ftrace_event_field 548KB 548KB [ 300.404950][ T3561] pool_workqueue 261KB 288KB [ 300.406441][ T27] exit_to_user_mode_loop+0x9e/0x130 [ 300.436548][ T27] exit_to_user_mode_prepare+0xee/0x180 [ 300.442192][ T27] syscall_exit_to_user_mode+0x16/0x40 [ 300.448583][ T3561] task_group 30KB 30KB [ 300.454830][ T3561] mm_struct 427KB 661KB [ 300.483458][ T27] do_syscall_64+0x58/0xa0 [ 300.486257][ T3561] vmap_area 234KB 322KB [ 300.513873][ T3561] debug_objects_cache 1667KB 1720KB [ 300.514507][ T27] ? clear_bhb_loop+0x30/0x80 [ 300.538259][ T3561] page->ptl 123KB 216KB [ 300.545181][ T3561] kmalloc-cg-8k 2128KB 2128KB [ 300.556842][ T27] ? clear_bhb_loop+0x30/0x80 [ 300.561714][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 300.576063][ T3561] kmalloc-cg-4k 4912KB 5320KB [ 300.582384][ T3561] kmalloc-cg-2k 1260KB 1284KB [ 300.595366][ T27] RIP: 0033:0x7fa8ea237679 [ 300.615949][ T27] RSP: 002b:00007fa8e989b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 300.618065][ T3561] kmalloc-cg-1k 868KB 1024KB [ 300.624713][ T27] RAX: fffffffffffffe00 RBX: 00007fa8ea4a2fa0 RCX: 00007fa8ea237679 [ 300.653183][ T27] RDX: 0000200000000100 RSI: 00000000c100565c RDI: 0000000000000003 [ 300.661326][ T27] RBP: 00007fa8ea2caee0 R08: 0000000000000000 R09: 0000000000000000 [ 300.687766][ T3561] kmalloc-cg-512 2070KB 2148KB [ 300.693914][ T3561] kmalloc-cg-256 40KB 40KB [ 300.716082][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 300.724136][ T27] R13: 00007fa8ea4a3038 R14: 00007fa8ea4a2fa0 R15: 00007ffdbd8a35c8 [ 300.756508][ T3561] kmalloc-cg-192 164KB 164KB [ 300.762645][ T3561] kmalloc-cg-128 104KB 104KB [ 300.769083][ T27] [ 300.772896][ T27] INFO: task syz.5.22:5165 blocked for more than 149 seconds. [ 300.785943][ T3561] kmalloc-cg-96 20KB 20KB [ 300.792175][ T3561] kmalloc-cg-64 16KB 16KB [ 300.874128][ T5213] slab_out_of_memory: 4146 callbacks suppressed [ 300.874148][ T5213] SLUB: Unable to allocate memory on node -1, gfp=0xb20(GFP_ATOMIC|__GFP_ZERO) [ 300.889949][ T5213] cache: kmalloc-1k, object size: 1024, buffer size: 2048, default order: 3, min order: 0 [ 300.900364][ T5213] node 0: slabs: 884, objs: 14144, free: 0 [ 300.906673][ T5213] node 1: slabs: 454, objs: 5192, free: 29 [ 301.129807][ T27] Not tainted syzkaller #0 [ 301.134904][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 301.182154][ T27] task:syz.5.22 state:D stack:27320 pid: 5165 ppid: 5146 flags:0x00004006 [ 301.206112][ T27] Call Trace: [ 301.209468][ T27] [ 301.212436][ T27] __schedule+0x11ef/0x43c0 [ 301.246004][ T27] ? rcu_lock_acquire+0x30/0x30 [ 301.250958][ T27] ? __mutex_lock_common+0xcf7/0x2400 [ 301.281844][ T27] ? release_firmware_map_entry+0x190/0x190 [ 301.300955][ T3561] kmalloc-cg-32 20KB 20KB [ 301.307427][ T27] ? __lock_acquire+0x7d10/0x7d10 [ 301.312520][ T27] ? __mutex_trylock_common+0x86/0x260 [ 301.326004][ T3561] kmalloc-cg-16 79KB 188KB [ 301.332228][ T3561] kmalloc-cg-8 31KB 31KB [ 301.348878][ T27] ? rcu_lock_release+0x20/0x20 [ 301.353985][ T27] schedule+0x11b/0x1e0 [ 301.366042][ T3561] kmalloc-8k 9488KB 9584KB [ 301.372222][ T3561] kmalloc-4k 137920KB 147624KB [ 301.378706][ T27] schedule_preempt_disabled+0xf/0x20 [ 301.384136][ T27] __mutex_lock_common+0xcfc/0x2400 [ 301.401686][ T3561] kmalloc-2k 24872KB 28384KB [ 301.408109][ T27] ? v4l2_release+0x1b9/0x390 [ 301.412948][ T27] ? mutex_lock_io_nested+0x60/0x60 [ 301.425972][ T3561] kmalloc-1k 35036KB 36880KB [ 301.432131][ T3561] kmalloc-512 42062KB 43672KB [ 301.438689][ T27] ? __fsnotify_parent+0x72a/0x820 [ 301.443974][ T27] ? fsnotify_set_children_dentry_flags+0x220/0x220 [ 301.476008][ T3561] kmalloc-256 4889KB 4944KB [ 301.482269][ T3561] kmalloc-192 1122KB 1572KB [ 301.492643][ T27] ? vivid_create_queue+0x860/0x860 [ 301.506021][ T27] mutex_lock_nested+0x17/0x20 [ 301.510872][ T27] v4l2_release+0x1b9/0x390 [ 301.515783][ T27] ? v4l2_open+0x360/0x360 [ 301.526027][ T3561] kmalloc-128 1615KB 2012KB [ 301.532638][ T3561] kmalloc-96 1280KB 1364KB [ 301.546958][ T27] __fput+0x234/0x930 [ 301.551034][ T27] task_work_run+0x125/0x1a0 [ 301.555692][ T27] get_signal+0x122e/0x12d0 [ 301.569288][ T3561] kmalloc-64 3062KB 3964KB [ 301.575428][ T3561] kmalloc-32 811KB 820KB [ 301.591597][ T27] ? kasan_quarantine_put+0xd4/0x220 [ 301.597137][ T3561] kmalloc-16 261KB 340KB [ 301.603290][ T3561] kmalloc-8 548KB 593KB [ 301.615972][ T27] ? kasan_save_stack+0x4b/0x60 [ 301.620900][ T27] ? kasan_save_stack+0x35/0x60 [ 301.625795][ T27] ? kasan_record_aux_stack+0xb8/0x100 [ 301.641577][ T3561] kmem_cache_node 207KB 208KB [ 301.652866][ T3561] kmem_cache 172KB 172KB [ 301.659227][ T27] ? task_work_add+0x2f/0x1d0 [ 301.663965][ T27] ? fput_many+0xde/0x1a0 [ 301.679234][ T3561] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0-1,global_oom,task_memcg=/syz5,task=syz.5.22,pid=5164,uid=0 [ 301.705569][ T27] ? __se_sys_ioctl+0x157/0x170 [ 301.711076][ T27] ? do_syscall_64+0x4c/0xa0 [ 301.715770][ T27] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 301.738016][ T3561] Out of memory: Killed process 5165 (syz.5.22) total-vm:44920kB, anon-rss:0kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:76kB oom_score_adj:1000 [ 301.756304][ T27] arch_do_signal_or_restart+0xe7/0x12c0 [ 301.762047][ T27] ? get_sigframe_size+0x10/0x10 [ 301.775983][ T27] ? kick_process+0xd4/0x140 [ 301.780673][ T27] ? exit_to_user_mode_loop+0x3b/0x130 [ 301.804609][ T27] exit_to_user_mode_loop+0x9e/0x130 [ 301.819562][ T27] exit_to_user_mode_prepare+0xee/0x180 [ 301.826047][ T27] syscall_exit_to_user_mode+0x16/0x40 [ 301.831577][ T27] do_syscall_64+0x58/0xa0 [ 301.865286][ T27] ? clear_bhb_loop+0x30/0x80 [ 301.870214][ T27] ? clear_bhb_loop+0x30/0x80 [ 301.874963][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 301.884786][ T3561] udevd[3561]: worker [5205] terminated by signal 9 (Killed) [ 301.901281][ T27] RIP: 0033:0x7fdd59caf679 [ 301.905798][ T27] RSP: 002b:00007fdd59313028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 301.932275][ T3561] udevd[3561]: worker [5207] terminated by signal 9 (Killed) [ 301.941678][ T27] RAX: fffffffffffffe00 RBX: 00007fdd59f1afa0 RCX: 00007fdd59caf679 [ 301.956887][ T3561] udevd[3561]: worker [5208] terminated by signal 9 (Killed) [ 301.964474][ T3561] udevd[3561]: worker [5209] terminated by signal 9 (Killed) [ 301.972044][ T27] RDX: 0000200000000100 RSI: 00000000c100565c RDI: 0000000000000003 [ 301.980396][ T27] RBP: 00007fdd59d42ee0 R08: 0000000000000000 R09: 0000000000000000 [ 301.995942][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 302.004853][ T27] R13: 00007fdd59f1b038 R14: 00007fdd59f1afa0 R15: 00007ffed87ef0b8 [ 302.039232][ T27] [ 302.054512][ T27] [ 302.054512][ T27] Showing all locks held in the system: [ 302.067810][ T27] 1 lock held by khungtaskd/27: [ 302.072819][ T27] #0: ffffffff8c31f320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 302.156155][ T27] 4 locks held by kworker/u4:2/154: [ 302.161437][ T27] #0: ffff888016dcd938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x761/0x1010 [ 302.172425][ T27] #1: ffffc90001ca7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 [ 302.182692][ T27] #2: ffffffff8d431cd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x148/0xba0 [ 302.193145][ T27] #3: ffffffff8c323da8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a5/0x750 [ 302.205487][ T27] 3 locks held by kworker/1:2/2856: [ 302.210998][ T27] #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010 [ 302.221726][ T27] #1: ffffc9000beefd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 [ 302.234723][ T27] #2: ffffffff8c323da8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a5/0x750 [ 302.246411][ T27] 2 locks held by getty/3947: [ 302.251128][ T27] #0: ffff88814c8a3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 302.260995][ T27] #1: ffffc90002d032e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x5df/0x1a70 [ 302.271460][ T27] 2 locks held by kworker/1:3/4281: [ 302.277266][ T27] #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010 [ 302.288036][ T27] #1: ffffc9000116fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 [ 302.311955][ T27] 2 locks held by kworker/1:4/4282: [ 302.321804][ T27] #0: ffff888016c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x761/0x1010 [ 302.338169][ T27] #1: ffffc90002fefd00 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 [ 302.356462][ T27] 2 locks held by kworker/1:20/4302: [ 302.361799][ T27] #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010 [ 302.383984][ T27] #1: ffffc9000307fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 [ 302.405986][ T27] 2 locks held by kworker/0:9/4327: [ 302.411835][ T27] #0: ffff888016c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x761/0x1010 [ 302.432726][ T27] #1: ffffc9000331fd00 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 [ 302.455977][ T27] 1 lock held by syz.2.19/4947: [ 302.460899][ T27] 2 locks held by syz.1.18/5070: [ 302.465872][ T27] #0: ffff8881498d0448 (&mdev->req_queue_mutex){+.+.}-{3:3}, at: v4l2_release+0x1b9/0x390 [ 302.485574][ T27] #1: ffff8881498d6aa8 (&dev->mutex#4){+.+.}-{3:3}, at: vivid_fop_release+0x66/0xad0 [ 302.505535][ T27] 1 lock held by syz.3.20/5073: [ 302.510524][ T27] #0: ffff8881498d0448 (&mdev->req_queue_mutex){+.+.}-{3:3}, at: v4l2_release+0x1b9/0x390 [ 302.522604][ T27] 1 lock held by syz.4.21/5076: [ 302.528243][ T27] #0: ffff8881498d0448 (&mdev->req_queue_mutex){+.+.}-{3:3}, at: v4l2_release+0x1b9/0x390 [ 302.538448][ T27] 1 lock held by syz.0.17/5080: [ 302.543388][ T27] #0: ffff8881498d0448 (&mdev->req_queue_mutex){+.+.}-{3:3}, at: v4l2_release+0x1b9/0x390 [ 302.553662][ T27] 1 lock held by syz.5.22/5165: [ 302.558598][ T27] #0: ffff8881498d0448 (&mdev->req_queue_mutex){+.+.}-{3:3}, at: v4l2_release+0x1b9/0x390 [ 302.578780][ T27] [ 302.581175][ T27] ============================================= [ 302.581175][ T27] [ 302.599829][ T27] NMI backtrace for cpu 1 [ 302.604316][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 302.611707][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 302.621804][ T27] Call Trace: [ 302.625143][ T27] [ 302.628102][ T27] dump_stack_lvl+0x188/0x250 [ 302.633216][ T27] ? show_regs_print_info+0x20/0x20 [ 302.638442][ T27] ? load_image+0x400/0x400 [ 302.642975][ T27] ? nmi_cpu_backtrace+0x1b2/0x3d0 [ 302.648120][ T27] nmi_cpu_backtrace+0x3a2/0x3d0 [ 302.653089][ T27] ? nmi_trigger_cpumask_backtrace+0x280/0x280 [ 302.659451][ T27] ? _printk+0xda/0x130 [ 302.663655][ T27] ? load_image+0x400/0x400 [ 302.668188][ T27] ? load_image+0x400/0x400 [ 302.672792][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 302.679027][ T27] nmi_trigger_cpumask_backtrace+0x163/0x280 [ 302.685073][ T27] watchdog+0xe0f/0xe50 [ 302.689366][ T27] kthread+0x436/0x520 [ 302.693551][ T27] ? hungtask_pm_notify+0x40/0x40 [ 302.698610][ T27] ? kthread_blkcg+0xd0/0xd0 [ 302.703231][ T27] ret_from_fork+0x1f/0x30 [ 302.707701][ T27] [ 302.711362][ T27] Sending NMI from CPU 1 to CPUs 0: [ 302.717486][ C0] NMI backtrace for cpu 0 [ 302.717500][ C0] CPU: 0 PID: 5002 Comm: kworker/u4:7 Not tainted syzkaller #0 [ 302.717520][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 302.717531][ C0] Workqueue: events_unbound cfg80211_wiphy_work [ 302.717558][ C0] RIP: 0010:lock_release+0x1a9/0x8a0 [ 302.717582][ C0] Code: 85 f5 04 00 00 83 3d d9 95 2c 0c 00 0f 84 ac 03 00 00 48 8b 7c 24 18 4c 8d b7 e8 0a 00 00 4d 89 f4 49 c1 ec 03 43 0f b6 04 2c <84> c0 0f 85 ee 04 00 00 41 8b 0e 85 c9 0f 84 10 02 00 00 4c 89 64 [ 302.717599][ C0] RSP: 0018:ffffc90000007460 EFLAGS: 00000802 [ 302.717614][ C0] RAX: 0000000000000000 RBX: ffff88802c44d940 RCX: 059094eede71c500 [ 302.717628][ C0] RDX: 0000000000000000 RSI: ffffffff8a2b3f00 RDI: ffff88802c44d940 [ 302.717642][ C0] RBP: ffffc90000007570 R08: ffffffff8d89f82f R09: 1ffffffff1b13f05 [ 302.717657][ C0] R10: dffffc0000000000 R11: fffffbfff1b13f06 R12: 1ffff11005889c85 [ 302.717671][ C0] R13: dffffc0000000000 R14: ffff88802c44e428 R15: 0000000000000046 [ 302.717685][ C0] FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 [ 302.717702][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 302.717716][ C0] CR2: 0000562d61619240 CR3: 000000005a65b000 CR4: 00000000003506f0 [ 302.717732][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 302.717744][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 302.717755][ C0] Call Trace: [ 302.717761][ C0] [ 302.717768][ C0] ? try_to_wake_up+0x6cf/0x1050 [ 302.717791][ C0] ? rcu_lock_release+0x5/0x20 [ 302.717811][ C0] ? __lock_acquire+0x7d10/0x7d10 [ 302.717832][ C0] ? __queue_work+0xa61/0xd50 [ 302.717852][ C0] queue_work_on+0x124/0x1f0 [ 302.717870][ C0] ? wq_worker_last_func+0x40/0x40 [ 302.717888][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 302.717909][ C0] ? wiphy_work_queue+0x14d/0x1a0 [ 302.717931][ C0] ieee80211_rx_h_mgmt+0x443/0x5f0 [ 302.717953][ C0] ? ieee80211_rx_h_ext+0x1af/0x230 [ 302.717973][ C0] ieee80211_rx_handlers+0x66ff/0x84c0 [ 302.718001][ C0] ? drv_event_callback+0x250/0x250 [ 302.718021][ C0] ? verify_lock_unused+0x140/0x140 [ 302.718041][ C0] ? mark_lock+0x94/0x320 [ 302.718058][ C0] ? mark_lock+0x94/0x320 [ 302.718078][ C0] ieee80211_prepare_and_rx_handle+0x1d90/0x52f0 [ 302.718108][ C0] ? ieee80211_rx_8023+0x13e0/0x13e0 [ 302.718134][ C0] ? sta_info_get_bss+0x292/0x2a0 [ 302.718156][ C0] ieee80211_rx_list+0x1c78/0x2790 [ 302.718176][ C0] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 302.718205][ C0] ? ieee80211_check_fast_rx_iface+0x210/0x210 [ 302.718228][ C0] ? read_lock_is_recursive+0x10/0x10 [ 302.718250][ C0] ? __rwlock_init+0x140/0x140 [ 302.718269][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x120 [ 302.718296][ C0] ieee80211_rx_napi+0x178/0x390 [ 302.718317][ C0] ? ieee80211_rx_list+0x2790/0x2790 [ 302.718337][ C0] ? skb_dequeue+0x120/0x150 [ 302.718355][ C0] ieee80211_handle_queued_frames+0x105/0x1b0 [ 302.718383][ C0] ? ieee80211_reconfig_filter+0x20/0x20 [ 302.718413][ C0] tasklet_action_common+0x2ad/0x410 [ 302.718435][ C0] ? trace_raw_output_softirq+0xd0/0xd0 [ 302.718453][ C0] ? sched_clock_cpu+0x15/0x3c0 [ 302.718477][ C0] handle_softirqs+0x339/0x830 [ 302.718496][ C0] ? do_softirq+0x142/0x210 [ 302.718514][ C0] ? do_softirq+0x210/0x210 [ 302.718535][ C0] do_softirq+0x142/0x210 [ 302.718551][ C0] [ 302.718557][ C0] [ 302.718563][ C0] ? __local_bh_enable_ip+0x1c0/0x1c0 [ 302.718581][ C0] ? lockdep_hardirqs_on_prepare+0x770/0x770 [ 302.718603][ C0] ? __local_bh_enable_ip+0xd7/0x1c0 [ 302.718621][ C0] ? lockdep_hardirqs_off+0x70/0x100 [ 302.718642][ C0] ? cfg80211_bss_update+0x1c79/0x2250 [ 302.718663][ C0] __local_bh_enable_ip+0x180/0x1c0 [ 302.718680][ C0] ? _local_bh_enable+0xa0/0xa0 [ 302.718698][ C0] ? do_raw_spin_unlock+0x11d/0x230 [ 302.718716][ C0] ? cfg80211_bss_update+0x1c79/0x2250 [ 302.718736][ C0] cfg80211_bss_update+0x1c79/0x2250 [ 302.718762][ C0] ? cfg80211_inform_bss_frame_data+0x6c0/0x1fc0 [ 302.718784][ C0] cfg80211_inform_bss_frame_data+0x89f/0x1fc0 [ 302.718810][ C0] ? verify_lock_unused+0x140/0x140 [ 302.718834][ C0] ? cfg80211_parse_mbssid_data+0x3160/0x3160 [ 302.718861][ C0] ? __lock_acquire+0x7d10/0x7d10 [ 302.718887][ C0] ieee80211_bss_info_update+0x6be/0xa70 [ 302.718912][ C0] ? ieee80211_rx_bss_put+0x60/0x60 [ 302.718937][ C0] ? ieee80211_mandatory_rates+0x1c8/0x230 [ 302.718960][ C0] ieee80211_ibss_rx_queued_mgmt+0x1700/0x2ab0 [ 302.718990][ C0] ? ieee80211_ibss_rx_no_sta+0x770/0x770 [ 302.719026][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x120 [ 302.719045][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 302.719065][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 302.719083][ C0] ? _raw_spin_unlock+0x40/0x40 [ 302.719100][ C0] ? kcov_remote_start+0x6f/0x4a0 [ 302.719121][ C0] ? kcov_remote_start+0xea/0x4a0 [ 302.719140][ C0] ieee80211_iface_work+0x70e/0xc60 [ 302.719163][ C0] cfg80211_wiphy_work+0x221/0x260 [ 302.719185][ C0] process_one_work+0x85f/0x1010 [ 302.719210][ C0] ? worker_detach_from_pool+0x240/0x240 [ 302.719228][ C0] ? lockdep_hardirqs_off+0x70/0x100 [ 302.719249][ C0] ? _raw_spin_lock_irq+0xb7/0xf0 [ 302.719266][ C0] ? _raw_spin_lock_irqsave+0x100/0x100 [ 302.719290][ C0] ? wq_worker_running+0x97/0x170 [ 302.719308][ C0] worker_thread+0xaa6/0x1290 [ 302.719331][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 302.719351][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 302.719373][ C0] kthread+0x436/0x520 [ 302.719389][ C0] ? rcu_lock_release+0x20/0x20 [ 302.719406][ C0] ? kthread_blkcg+0xd0/0xd0 [ 302.719424][ C0] ret_from_fork+0x1f/0x30 [ 302.719448][ C0] [ 302.730732][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 303.308146][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 303.315542][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 303.326079][ T27] Call Trace: [ 303.329556][ T27] [ 303.332805][ T27] dump_stack_lvl+0x188/0x250 [ 303.337679][ T27] ? show_regs_print_info+0x20/0x20 [ 303.343365][ T27] ? load_image+0x400/0x400 [ 303.348310][ T27] panic+0x2e5/0x810 [ 303.352620][ T27] ? bpf_jit_dump+0xd0/0xd0 [ 303.357511][ T27] ? watchdog+0xe3d/0xe50 [ 303.361969][ T27] watchdog+0xe4e/0xe50 [ 303.366521][ T27] kthread+0x436/0x520 [ 303.371007][ T27] ? hungtask_pm_notify+0x40/0x40 [ 303.376251][ T27] ? kthread_blkcg+0xd0/0xd0 [ 303.381051][ T27] ret_from_fork+0x1f/0x30 [ 303.385512][ T27] [ 303.388913][ T27] Kernel Offset: disabled [ 303.393294][ T27] Rebooting in 86400 seconds..