====================================================== WARNING: possible circular locking dependency detected 4.19.0-rc7+ #59 Not tainted ------------------------------------------------------ syz-executor5/9295 is trying to acquire lock: 000000001ebf0eae (sb_internal){.+.+}, at: sb_start_intwrite include/linux/fs.h:1613 [inline] 000000001ebf0eae (sb_internal){.+.+}, at: ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 but task is already holding lock: 00000000e43a2a9c (fs_reclaim){+.+.}, at: fs_reclaim_acquire.part.97+0x0/0x30 mm/internal.h:79 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (fs_reclaim){+.+.}: __fs_reclaim_acquire mm/page_alloc.c:3728 [inline] fs_reclaim_acquire.part.97+0x24/0x30 mm/page_alloc.c:3739 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x2d/0x750 mm/slab.c:3618 kmalloc include/linux/slab.h:513 [inline] kzalloc include/linux/slab.h:707 [inline] smk_fetch.part.24+0x5a/0xf0 security/smack/smack_lsm.c:273 smk_fetch security/smack/smack_lsm.c:3548 [inline] smack_d_instantiate+0x94e/0xea0 security/smack/smack_lsm.c:3502 security_d_instantiate+0x5c/0xf0 security/security.c:1287 d_instantiate+0x5e/0xa0 fs/dcache.c:1870 shmem_mknod+0x189/0x1f0 mm/shmem.c:2814 vfs_mknod+0x445/0x800 fs/namei.c:3719 handle_create+0x1ff/0x730 drivers/base/devtmpfs.c:211 handle drivers/base/devtmpfs.c:374 [inline] devtmpfsd+0x27f/0x4c0 drivers/base/devtmpfs.c:400 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 -> #2 (&isp->smk_lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x166/0x1700 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 smack_d_instantiate+0x136/0xea0 security/smack/smack_lsm.c:3369 security_d_instantiate+0x5c/0xf0 security/security.c:1287 d_instantiate_new+0x70/0x160 fs/dcache.c:1889 ext4_add_nondir+0x81/0x90 fs/ext4/namei.c:2415 ext4_symlink+0x752/0x1130 fs/ext4/namei.c:3162 vfs_symlink+0x37a/0x5d0 fs/namei.c:4127 do_symlinkat+0x242/0x2d0 fs/namei.c:4154 __do_sys_symlink fs/namei.c:4173 [inline] __se_sys_symlink fs/namei.c:4171 [inline] __x64_sys_symlink+0x59/0x80 fs/namei.c:4171 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (jbd2_handle){++++}: start_this_handle+0x5b8/0x1250 fs/jbd2/transaction.c:385 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 ext4_sample_last_mounted fs/ext4/file.c:414 [inline] ext4_file_open+0x53e/0x730 fs/ext4/file.c:439 do_dentry_open+0x499/0x1250 fs/open.c:771 vfs_open+0xa0/0xd0 fs/open.c:880 do_last fs/namei.c:3418 [inline] path_openat+0x12bf/0x5160 fs/namei.c:3534 do_filp_open+0x255/0x380 fs/namei.c:3564 do_open_execat+0x221/0x8e0 fs/exec.c:853 open_exec+0x53/0x70 fs/exec.c:885 load_elf_binary+0x96e/0x5620 fs/binfmt_elf.c:780 search_binary_handler+0x17d/0x570 fs/exec.c:1653 exec_binprm fs/exec.c:1695 [inline] __do_execve_file.isra.33+0x162f/0x2540 fs/exec.c:1819 do_execveat_common fs/exec.c:1866 [inline] do_execve fs/exec.c:1883 [inline] __do_sys_execve fs/exec.c:1964 [inline] __se_sys_execve fs/exec.c:1959 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1959 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (sb_internal){.+.+}: lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x214/0x370 fs/super.c:1387 sb_start_intwrite include/linux/fs.h:1613 [inline] ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 evict+0x4b9/0x980 fs/inode.c:558 iput_final fs/inode.c:1547 [inline] iput+0x679/0xa90 fs/inode.c:1573 dentry_unlink_inode+0x461/0x5e0 fs/dcache.c:374 __dentry_kill+0x44c/0x7a0 fs/dcache.c:566 dentry_kill+0xc9/0x5a0 fs/dcache.c:685 dput.part.26+0x660/0x790 fs/dcache.c:846 dput+0x15/0x20 fs/dcache.c:828 ovl_destroy_inode+0x3d/0x170 fs/overlayfs/super.c:204 destroy_inode+0x159/0x200 fs/inode.c:267 evict+0x5e0/0x980 fs/inode.c:575 iput_final fs/inode.c:1547 [inline] iput+0x679/0xa90 fs/inode.c:1573 dentry_unlink_inode+0x461/0x5e0 fs/dcache.c:374 __dentry_kill+0x44c/0x7a0 fs/dcache.c:566 shrink_dentry_list+0x32f/0x800 fs/dcache.c:1079 prune_dcache_sb+0x12f/0x1c0 fs/dcache.c:1171 super_cache_scan+0x270/0x480 fs/super.c:102 do_shrink_slab+0x4e7/0xd20 mm/vmscan.c:547 shrink_slab_memcg mm/vmscan.c:612 [inline] shrink_slab+0x6f6/0x8c0 mm/vmscan.c:684 shrink_node+0x431/0x16b0 mm/vmscan.c:2745 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __vmalloc_area_node mm/vmalloc.c:1686 [inline] __vmalloc_node_range+0x498/0x750 mm/vmalloc.c:1746 __vmalloc_node mm/vmalloc.c:1791 [inline] __vmalloc+0x45/0x50 mm/vmalloc.c:1797 copy_module_from_user kernel/module.c:2886 [inline] __do_sys_init_module+0x1e0/0x370 kernel/module.c:3853 __se_sys_init_module kernel/module.c:3840 [inline] __x64_sys_init_module+0x6e/0xb0 kernel/module.c:3840 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: sb_internal --> &isp->smk_lock --> fs_reclaim Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(fs_reclaim); lock(&isp->smk_lock); lock(fs_reclaim); lock(sb_internal); *** DEADLOCK *** 3 locks held by syz-executor5/9295: #0: 00000000e43a2a9c (fs_reclaim){+.+.}, at: fs_reclaim_acquire.part.97+0x0/0x30 mm/internal.h:79 #1: 0000000003db05be (shrinker_rwsem){++++}, at: shrink_slab_memcg mm/vmscan.c:589 [inline] #1: 0000000003db05be (shrinker_rwsem){++++}, at: shrink_slab+0x1d1/0x8c0 mm/vmscan.c:684 #2: 0000000074a010b5 (&type->s_umount_key#77){.+.+}, at: trylock_super+0x22/0x110 fs/super.c:412 stack backtrace: CPU: 0 PID: 9295 Comm: syz-executor5 Not tainted 4.19.0-rc7+ #59 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 print_circular_bug.isra.33.cold.54+0x1bd/0x27d kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1861 [inline] check_prevs_add kernel/locking/lockdep.c:1974 [inline] validate_chain kernel/locking/lockdep.c:2415 [inline] __lock_acquire+0x33e4/0x4ec0 kernel/locking/lockdep.c:3411 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x214/0x370 fs/super.c:1387 sb_start_intwrite include/linux/fs.h:1613 [inline] ext4_evict_inode+0x5e5/0x1ad0 fs/ext4/inode.c:250 evict+0x4b9/0x980 fs/inode.c:558 iput_final fs/inode.c:1547 [inline] iput+0x679/0xa90 fs/inode.c:1573 dentry_unlink_inode+0x461/0x5e0 fs/dcache.c:374 __dentry_kill+0x44c/0x7a0 fs/dcache.c:566 dentry_kill+0xc9/0x5a0 fs/dcache.c:685 dput.part.26+0x660/0x790 fs/dcache.c:846 dput+0x15/0x20 fs/dcache.c:828 ovl_destroy_inode+0x3d/0x170 fs/overlayfs/super.c:204 destroy_inode+0x159/0x200 fs/inode.c:267 evict+0x5e0/0x980 fs/inode.c:575 iput_final fs/inode.c:1547 [inline] iput+0x679/0xa90 fs/inode.c:1573 dentry_unlink_inode+0x461/0x5e0 fs/dcache.c:374 __dentry_kill+0x44c/0x7a0 fs/dcache.c:566 shrink_dentry_list+0x32f/0x800 fs/dcache.c:1079 prune_dcache_sb+0x12f/0x1c0 fs/dcache.c:1171 super_cache_scan+0x270/0x480 fs/super.c:102 do_shrink_slab+0x4e7/0xd20 mm/vmscan.c:547 shrink_slab_memcg mm/vmscan.c:612 [inline] shrink_slab+0x6f6/0x8c0 mm/vmscan.c:684 shrink_node+0x431/0x16b0 mm/vmscan.c:2745 shrink_zones mm/vmscan.c:2974 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3036 try_to_free_pages+0x4d0/0xb90 mm/vmscan.c:3251 __perform_reclaim mm/page_alloc.c:3769 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:3790 [inline] __alloc_pages_slowpath+0x993/0x2d80 mm/page_alloc.c:4191 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __vmalloc_area_node mm/vmalloc.c:1686 [inline] __vmalloc_node_range+0x498/0x750 mm/vmalloc.c:1746 __vmalloc_node mm/vmalloc.c:1791 [inline] __vmalloc+0x45/0x50 mm/vmalloc.c:1797 copy_module_from_user kernel/module.c:2886 [inline] __do_sys_init_module+0x1e0/0x370 kernel/module.c:3853 __se_sys_init_module kernel/module.c:3840 [inline] __x64_sys_init_module+0x6e/0xb0 kernel/module.c:3840 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: Bad RIP value. RSP: 002b:00007f9e3f8f8c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000af RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 00000000200002c0 RSI: 00000000fffffd50 RDI: 00000000200004c0 RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9e3f8f96d4 R13: 00000000004bdd87 R14: 00000000004ce290 R15: 00000000ffffffff oom_reaper: reaped process 9293 (syz-executor5), now anon-rss:0kB, file-rss:32640kB, shmem-rss:0kB udevd invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 udevd cpuset=/ mems_allowed=0 CPU: 1 PID: 5341 Comm: udevd Not tainted 4.19.0-rc7+ #59 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x7fbcbdf31943 Code: Bad RIP value. RSP: 002b:00007ffd0f053e58 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 00000000007792d0 RCX: 00007fbcbdf31943 RDX: 0000000000000004 RSI: 00007ffd0f053eb0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000788fd0 R14: 0000000000779250 R15: 000000000000000b Mem-Info: active_anon:143361 inactive_anon:107 isolated_anon:0 active_file:16 inactive_file:18 isolated_file:0 unevictable:0 dirty:4 writeback:0 unstable:0 slab_reclaimable:12457 slab_unreclaimable:101894 mapped:49154 shmem:115 pagetables:1198 bounce:0 free:15870 free_pcp:0 free_cma:0 Node 0 active_anon:573400kB inactive_anon:428kB active_file:76kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:460kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 407552kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2819 6323 6323 Node 0 DMA32 free:29040kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:18424kB min:37352kB low:46688kB high:56024kB active_anon:573400kB inactive_anon:428kB active_file:76kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5920kB pagetables:4788kB bounce:0kB free_pcp:248kB local_pcp:248kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 4*4kB (M) 0*8kB 2*16kB (M) 2*32kB (M) 4*64kB (M) 4*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (M) 4*4096kB (M) = 29040kB Node 0 Normal: 986*4kB (ME) 856*8kB (UME) 255*16kB (UM) 87*32kB (UM) 8*64kB (UM) 0*128kB 1*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 18424kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 149 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342307 pages reserved 0 pages cma reserved Out of memory: Kill process 8610 (syz-executor2) score 1005 or sacrifice child Killed process 8610 (syz-executor2) total-vm:70736kB, anon-rss:6312kB, file-rss:32640kB, shmem-rss:0kB oom_reaper: reaped process 8610 (syz-executor2), now anon-rss:0kB, file-rss:32768kB, shmem-rss:0kB udevd invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 udevd cpuset=/ mems_allowed=0 CPU: 0 PID: 5341 Comm: udevd Not tainted 4.19.0-rc7+ #59 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 dump_header+0x27b/0xf72 mm/oom_kill.c:441 oom_kill_process.cold.27+0x10/0x903 mm/oom_kill.c:953 out_of_memory+0xa84/0x1430 mm/oom_kill.c:1120 __alloc_pages_may_oom mm/page_alloc.c:3522 [inline] __alloc_pages_slowpath+0x2318/0x2d80 mm/page_alloc.c:4235 __alloc_pages_nodemask+0xa80/0xde0 mm/page_alloc.c:4390 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __page_cache_alloc+0x38f/0x5b0 mm/filemap.c:946 page_cache_read mm/filemap.c:2385 [inline] filemap_fault+0x1594/0x25f0 mm/filemap.c:2569 ext4_filemap_fault+0x82/0xad fs/ext4/inode.c:6259 __do_fault+0x100/0x6b0 mm/memory.c:3240 do_read_fault mm/memory.c:3652 [inline] do_fault mm/memory.c:3752 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x3709/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x7fbcbdf31943 Code: Bad RIP value. RSP: 002b:00007ffd0f053e58 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 00000000007792d0 RCX: 00007fbcbdf31943 RDX: 0000000000000004 RSI: 00007ffd0f053eb0 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000788fd0 R14: 0000000000779250 R15: 000000000000000b Mem-Info: active_anon:141784 inactive_anon:107 isolated_anon:0 active_file:16 inactive_file:20 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:12454 slab_unreclaimable:101746 mapped:49154 shmem:114 pagetables:1171 bounce:0 free:17621 free_pcp:0 free_cma:0 Node 0 active_anon:567136kB inactive_anon:428kB active_file:64kB inactive_file:80kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196616kB dirty:0kB writeback:0kB shmem:456kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 401408kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2819 6323 6323 Node 0 DMA32 free:29040kB min:30060kB low:37572kB high:45084kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2890736kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 3503 3503 Node 0 Normal free:68480kB min:37352kB low:46688kB high:56024kB active_anon:567136kB inactive_anon:428kB active_file:64kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3588044kB mlocked:0kB kernel_stack:5920kB pagetables:4684kB bounce:0kB free_pcp:2028kB local_pcp:408kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 4*4kB (M) 0*8kB 2*16kB (M) 2*32kB (M) 4*64kB (M) 4*128kB (UM) 4*256kB (UM) 3*512kB (M) 3*1024kB (UM) 3*2048kB (M) 4*4096kB (M) = 29040kB Node 0 Normal: 4875*4kB (UME) 1261*8kB (UME) 535*16kB (UM) 392*32kB (UM) 213*64kB (UM) 153*128kB (U) 29*256kB (U) 15*512kB (U) 4*1024kB (U) 2*2048kB (UM) 25*4096kB (UM) = 209604kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 927 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 342307 pages reserved 0 pages cma reserved Out of memory: Kill process 9226 (syz-executor2) score 1004 or sacrifice child Killed process 9226 (syz-executor2) total-vm:70604kB, anon-rss:2216kB, file-rss:32768kB, shmem-rss:0kB syz-executor5 (9295) used greatest stack depth: 9256 bytes left netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 'syz-executor0': attribute type 5 has an invalid length. netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 'syz-executor2': attribute type 3 has an invalid length. netlink: 'syz-executor0': attribute type 5 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 'syz-executor2': attribute type 3 has an invalid length. kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink: 4 bytes leftover after parsing attributes in process `syz-executor2'. kobject: 'kvm' (00000000e75b51dd): kobject_uevent_env kobject: 'kvm' (00000000e75b51dd): fill_kobj_path: path = '/devices/virtual/misc/kvm' tls_set_device_offload_rx: netdev lo with no TLS offload kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env tls_set_device_offload_rx: netdev lo with no TLS offload netlink: 'syz-executor0': attribute type 3 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor0'. kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' tls_set_device_offload_rx: netdev lo with no TLS offload kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' netlink: 'syz-executor0': attribute type 3 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 'syz-executor0': attribute type 3 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor0'. kobject: 'kvm' (00000000e75b51dd): kobject_uevent_env tls_set_device_offload_rx: netdev lo with no TLS offload kobject: 'kvm' (00000000e75b51dd): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'kvm' (00000000e75b51dd): kobject_uevent_env kobject: 'kvm' (00000000e75b51dd): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'kvm' (00000000e75b51dd): kobject_uevent_env kobject: 'kvm' (00000000e75b51dd): fill_kobj_path: path = '/devices/virtual/misc/kvm' tls_set_device_offload_rx: netdev lo with no TLS offload tls_set_device_offload_rx: netdev lo with no TLS offload tls_set_device_offload_rx: netdev lo with no TLS offload tls_set_device_offload_rx: netdev lo with no TLS offload kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' tls_set_device_offload_rx: netdev lo with no TLS offload tls_set_device_offload_rx: netdev lo with no TLS offload kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (0000000069b6fe75): kobject_uevent_env kobject: 'loop0' (0000000069b6fe75): fill_kobj_path: path = '/devices/virtual/block/loop0'