=============================== [ INFO: suspicious RCU usage. ] 4.9.202+ #0 Not tainted ------------------------------- include/linux/radix-tree.h:199 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 0 2 locks held by syz-executor.2/11204: #0: (&sb->s_type->i_mutex_key#10){+.+.+.}, at: [<0000000023d19a51>] inode_lock include/linux/fs.h:771 [inline] #0: (&sb->s_type->i_mutex_key#10){+.+.+.}, at: [<0000000023d19a51>] shmem_add_seals+0x166/0x1020 mm/shmem.c:2610 audit: type=1400 audit(1574222753.856:56): avc: denied { ioctl } for pid=11163 comm="syz-executor.5" path="socket:[26127]" dev="sockfs" ino=26127 ioctlcmd=0x54da scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 #1: [ 301.636993] syz-executor.3: vmalloc: allocation failure: 0 bytes , mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 11218 Comm: syz-executor.3 Not tainted 4.9.202+ #0 ffff8801a4ac7968 ffffffff81b55d2b 1ffff10034958f2f ffff8801d1ec8000 ffffffff82aab360 0000000000000001 0000000000400000 ffff8801a4ac7a90 ffffffff81507f2c 0000000041b58ab3 ffffffff82e3a440 ffffffff81431d00 Call Trace: [<00000000653f2a03>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000653f2a03>] dump_stack+0xcb/0x130 lib/dump_stack.c:56 [<00000000aaa75b8d>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<00000000e1bb800a>] __vmalloc_node_range+0x368/0x610 mm/vmalloc.c:1733 [<000000001cfd8c6a>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000001cfd8c6a>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000001cfd8c6a>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<0000000073aab1fe>] sel_write_load+0x119/0xf60 security/selinux/selinuxfs.c:514 [<00000000b69ed115>] __vfs_write+0x116/0x560 fs/read_write.c:509 [<0000000075ac6203>] vfs_write+0x185/0x520 fs/read_write.c:559 [<00000000c21945f2>] SYSC_write fs/read_write.c:607 [inline] [<00000000c21945f2>] SyS_write+0x121/0x270 fs/read_write.c:599 [<000000007592c169>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000050d2332a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:75953 inactive_anon:40 isolated_anon:0 active_file:4814 inactive_file:17616 isolated_file:0 unevictable:0 dirty:2276 writeback:3839 unstable:0 slab_reclaimable:6062 slab_unreclaimable:60330 mapped:59286 shmem:137 pagetables:3013 bounce:0 free:1419157 free_pcp:384 free_cma:0 Node 0 active_anon:303812kB inactive_anon:160kB active_file:19256kB inactive_file:70464kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:237144kB dirty:9104kB writeback:15356kB shmem:548kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:3019420kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020096kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:676kB local_pcp:32kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 Normal free:2657208kB min:5580kB low:9168kB high:12756kB active_anon:303812kB inactive_anon:160kB active_file:19256kB inactive_file:70464kB unevictable:0kB writepending:24460kB present:4718592kB managed:3589320kB mlocked:0kB slab_reclaimable:24248kB slab_unreclaimable:241320kB kernel_stack:7136kB pagetables:12052kB bounce:0kB free_pcp:860kB local_pcp:616kB free_cma:0kB lowmem_reserve[]: 0 0 0 DMA32: 3*4kB (UM) 2*8kB (M) 2*16kB (M) 3*32kB (UM) 4*64kB (UM) 4*128kB (UM) 3*256kB (UM) 2*512kB (M) 2*1024kB (UM) 2*2048kB (UM) 735*4096kB (M) = 3019420kB Normal: 25*4kB (UME) 24*8kB (UME) 98*16kB (UME) 403*32kB (UME) 234*64kB (UME) 207*128kB (UME) 172*256kB (UME) 90*512kB (UME) 34*1024kB (UME) 11*2048kB (UME) 599*4096kB (M) = 2657188kB 22564 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 313625 pages reserved syz-executor.3: vmalloc: allocation failure: 0 bytes , mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 11222 Comm: syz-executor.3 Not tainted 4.9.202+ #0 ffff8801c97ff968 ffffffff81b55d2b 1ffff100392fff2f ffff8801c5188000 ffffffff82aab360 0000000000000001 0000000000400000 ffff8801c97ffa90 ffffffff81507f2c 0000000041b58ab3 ffffffff82e3a440 ffffffff81431d00 Call Trace: [<00000000653f2a03>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000653f2a03>] dump_stack+0xcb/0x130 lib/dump_stack.c:56 [<00000000aaa75b8d>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<00000000e1bb800a>] __vmalloc_node_range+0x368/0x610 mm/vmalloc.c:1733 [<000000001cfd8c6a>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000001cfd8c6a>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000001cfd8c6a>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<0000000073aab1fe>] sel_write_load+0x119/0xf60 security/selinux/selinuxfs.c:514 [<00000000b69ed115>] __vfs_write+0x116/0x560 fs/read_write.c:509 [<0000000075ac6203>] vfs_write+0x185/0x520 fs/read_write.c:559 [<00000000c21945f2>] SYSC_write fs/read_write.c:607 [inline] [<00000000c21945f2>] SyS_write+0x121/0x270 fs/read_write.c:599 [<000000007592c169>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000050d2332a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:75972 inactive_anon:40 isolated_anon:0 active_file:4814 inactive_file:17616 isolated_file:0 unevictable:0 dirty:2276 writeback:3839 unstable:0 slab_reclaimable:6062 slab_unreclaimable:60410 mapped:59286 shmem:137 pagetables:3061 bounce:0 free:1419033 free_pcp:352 free_cma:0 Node 0 active_anon:303888kB inactive_anon:160kB active_file:19256kB inactive_file:70464kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:237144kB dirty:9104kB writeback:15356kB shmem:548kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:3019420kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020096kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:676kB local_pcp:32kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 Normal free:2656712kB min:5580kB low:9168kB high:12756kB active_anon:303888kB inactive_anon:160kB active_file:19256kB inactive_file:70464kB unevictable:0kB writepending:24460kB present:4718592kB managed:3589320kB mlocked:0kB slab_reclaimable:24248kB slab_unreclaimable:241640kB kernel_stack:7168kB pagetables:12244kB bounce:0kB free_pcp:732kB local_pcp:488kB free_cma:0kB lowmem_reserve[]: 0 0 0 DMA32: 3*4kB (UM) 2*8kB (M) 2*16kB (M) 3*32kB (UM) 4*64kB (UM) 4*128kB (UM) 3*256kB (UM) 2*512kB (M) 2*1024kB (UM) 2*2048kB (UM) 735*4096kB (M) = 3019420kB Normal: 20*4kB (UE) 23*8kB (UE) 92*16kB (UME) 389*32kB (UME) 234*64kB (UME) 207*128kB (UME) 172*256kB (UME) 90*512kB (UME) 34*1024kB (UME) 11*2048kB (UME) 599*4096kB (M) = 2656616kB 22564 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 313625 pages reserved ( &(&mapping->tree_lock)->rlock){..-...}, at: [<00000000a3b7de1d>] spin_lock_irq include/linux/spinlock.h:332 [inline] &(&mapping->tree_lock)->rlock){..-...}, at: [<00000000a3b7de1d>] shmem_tag_pins mm/shmem.c:2465 [inline] &(&mapping->tree_lock)->rlock){..-...}, at: [<00000000a3b7de1d>] shmem_wait_for_pins mm/shmem.c:2506 [inline] &(&mapping->tree_lock)->rlock){..-...}, at: [<00000000a3b7de1d>] shmem_add_seals+0x342/0x1020 mm/shmem.c:2622 stack backtrace: CPU: 1 PID: 11204 Comm: syz-executor.2 Not tainted 4.9.202+ #0 ffff8801c975fca0 ffffffff81b55d2b ffff8801b528f9e8 0000000000000000 0000000000000002 00000000000000c7 ffff88019ca32f80 ffff8801c975fcd0 ffffffff81406867 ffffea0006e6db80 dffffc0000000000 ffff8801c975fd78 Call Trace: [<00000000653f2a03>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000653f2a03>] dump_stack+0xcb/0x130 lib/dump_stack.c:56 [<00000000304b77e0>] lockdep_rcu_suspicious.cold+0x10a/0x149 kernel/locking/lockdep.c:4458 [<000000000b94501b>] radix_tree_deref_slot include/linux/radix-tree.h:199 [inline] [<000000000b94501b>] shmem_tag_pins mm/shmem.c:2467 [inline] [<000000000b94501b>] shmem_wait_for_pins mm/shmem.c:2506 [inline] [<000000000b94501b>] shmem_add_seals+0xa44/0x1020 mm/shmem.c:2622 [<000000008cfae450>] shmem_fcntl+0xf7/0x130 mm/shmem.c:2657 [<000000008f74a44a>] do_fcntl fs/fcntl.c:340 [inline] [<000000008f74a44a>] SYSC_fcntl fs/fcntl.c:376 [inline] [<000000008f74a44a>] SyS_fcntl+0x1d5/0xb50 fs/fcntl.c:361 [<000000007592c169>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000050d2332a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb syz-executor.3: vmalloc: allocation failure: 0 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 1 PID: 11243 Comm: syz-executor.3 Not tainted 4.9.202+ #0 ffff8801aa327968 ffffffff81b55d2b 1ffff10035464f2f ffff8801c55e2f80 ffffffff82aab360 0000000000000001 0000000000400000 ffff8801aa327a90 ffffffff81507f2c 0000000041b58ab3 ffffffff82e3a440 ffffffff81431d00 Call Trace: [<00000000653f2a03>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000653f2a03>] dump_stack+0xcb/0x130 lib/dump_stack.c:56 [<00000000aaa75b8d>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<00000000e1bb800a>] __vmalloc_node_range+0x368/0x610 mm/vmalloc.c:1733 [<000000001cfd8c6a>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000001cfd8c6a>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000001cfd8c6a>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<0000000073aab1fe>] sel_write_load+0x119/0xf60 security/selinux/selinuxfs.c:514 [<00000000b69ed115>] __vfs_write+0x116/0x560 fs/read_write.c:509 [<0000000075ac6203>] vfs_write+0x185/0x520 fs/read_write.c:559 [<00000000c21945f2>] SYSC_write fs/read_write.c:607 [inline] [<00000000c21945f2>] SyS_write+0x121/0x270 fs/read_write.c:599 [<000000007592c169>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000050d2332a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:76166 inactive_anon:43 isolated_anon:0 active_file:4830 inactive_file:11880 isolated_file:0 unevictable:0 dirty:665 writeback:0 unstable:0 slab_reclaimable:6090 slab_unreclaimable:60093 mapped:59275 shmem:137 pagetables:3141 bounce:0 free:1424615 free_pcp:381 free_cma:0 Node 0 active_anon:305064kB inactive_anon:172kB active_file:19320kB inactive_file:47720kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:237100kB dirty:2808kB writeback:0kB shmem:548kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:3019420kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020096kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:676kB local_pcp:644kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 Normal free:2671008kB min:5580kB low:9168kB high:12756kB active_anon:311964kB inactive_anon:172kB active_file:19320kB inactive_file:48220kB unevictable:0kB writepending:3252kB present:4718592kB managed:3589320kB mlocked:0kB slab_reclaimable:24360kB slab_unreclaimable:240576kB kernel_stack:7456kB pagetables:12712kB bounce:0kB free_pcp:648kB local_pcp:208kB free_cma:0kB lowmem_reserve[]: 0 0 0 DMA32: 3*4kB (UM) 2*8kB (M) 2*16kB (M) 3*32kB (UM) 4*64kB (UM) 4*128kB (UM) 3*256kB (UM) 2*512kB (M) 2*1024kB (UM) 2*2048kB (UM) 735*4096kB (M) = 3019420kB Normal: 18*4kB (UME) 821*8kB (UME) 538*16kB (ME) 373*32kB (UME) 236*64kB (UME) 211*128kB (UME) 172*256kB (UME) 90*512kB (UME) 34*1024kB (UME) 11*2048kB (UME) 599*4096kB (M) = 2670256kB 17149 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 313625 pages reserved syz-executor.4: vmalloc: allocation failure: 0 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 11241 Comm: syz-executor.4 Not tainted 4.9.202+ #0 ffff8801a946f968 ffffffff81b55d2b 1ffff1003528df2f ffff8801ca2597c0 ffffffff82aab360 0000000000000001 0000000000400000 ffff8801a946fa90 ffffffff81507f2c 0000000041b58ab3 ffffffff82e3a440 ffffffff81431d00 Call Trace: [<00000000653f2a03>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000653f2a03>] dump_stack+0xcb/0x130 lib/dump_stack.c:56 [<00000000aaa75b8d>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<00000000e1bb800a>] __vmalloc_node_range+0x368/0x610 mm/vmalloc.c:1733 [<000000001cfd8c6a>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000001cfd8c6a>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000001cfd8c6a>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<0000000073aab1fe>] sel_write_load+0x119/0xf60 security/selinux/selinuxfs.c:514 [<00000000b69ed115>] __vfs_write+0x116/0x560 fs/read_write.c:509 [<0000000075ac6203>] vfs_write+0x185/0x520 fs/read_write.c:559 [<00000000c21945f2>] SYSC_write fs/read_write.c:607 [inline] [<00000000c21945f2>] SyS_write+0x121/0x270 fs/read_write.c:599 [<000000007592c169>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000050d2332a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:77971 inactive_anon:41 isolated_anon:0 active_file:4830 inactive_file:12873 isolated_file:0 unevictable:0 dirty:1651 writeback:0 unstable:0 slab_reclaimable:6148 slab_unreclaimable:60053 mapped:59291 shmem:137 pagetables:3137 bounce:0 free:1422064 free_pcp:357 free_cma:0 Node 0 active_anon:311884kB inactive_anon:164kB active_file:19320kB inactive_file:51492kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:237164kB dirty:6604kB writeback:0kB shmem:548kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:3019420kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020096kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:676kB local_pcp:644kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 Normal free:2668836kB min:5580kB low:9168kB high:12756kB active_anon:311884kB inactive_anon:164kB active_file:19320kB inactive_file:51492kB unevictable:0kB writepending:6608kB present:4718592kB managed:3589320kB mlocked:0kB slab_reclaimable:24592kB slab_unreclaimable:240212kB kernel_stack:7040kB pagetables:12548kB bounce:0kB free_pcp:748kB local_pcp:512kB free_cma:0kB lowmem_reserve[]: 0 0 0 DMA32: 3*4kB (UM) 2*8kB (M) 2*16kB (M) 3*32kB (UM) 4*64kB (UM) 4*128kB (UM) 3*256kB (UM) 2*512kB (M) 2*1024kB (UM) 2*2048kB (UM) 735*4096kB (M) = 3019420kB Normal: 25*4kB (UM) 522*8kB (UM) 539*16kB (UM) 403*32kB (UME) 236*64kB (UME) 211*128kB (UME) 172*256kB (UME) 90*512kB (UME) 34*1024kB (UME) 11*2048kB (UME) 599*4096kB (M) = 2668868kB 17830 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 313625 pages reserved syz-executor.4: vmalloc: allocation failure: 0 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 1 PID: 11306 Comm: syz-executor.4 Not tainted 4.9.202+ #0 ffff8801a3bef968 ffffffff81b55d2b 1ffff1003477df2f ffff8801cee797c0 ffffffff82aab360 0000000000000001 0000000000400000 ffff8801a3befa90 ffffffff81507f2c 0000000041b58ab3 ffffffff82e3a440 ffffffff81431d00 Call Trace: [<00000000653f2a03>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000653f2a03>] dump_stack+0xcb/0x130 lib/dump_stack.c:56 [<00000000aaa75b8d>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<00000000e1bb800a>] __vmalloc_node_range+0x368/0x610 mm/vmalloc.c:1733 [<000000001cfd8c6a>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000001cfd8c6a>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000001cfd8c6a>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<0000000073aab1fe>] sel_write_load+0x119/0xf60 security/selinux/selinuxfs.c:514 [<00000000b69ed115>] __vfs_write+0x116/0x560 fs/read_write.c:509 [<0000000075ac6203>] vfs_write+0x185/0x520 fs/read_write.c:559 [<00000000c21945f2>] SYSC_write fs/read_write.c:607 [inline] [<00000000c21945f2>] SyS_write+0x121/0x270 fs/read_write.c:599 [<000000007592c169>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000050d2332a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:78255 inactive_anon:43 isolated_anon:0 active_file:4814 inactive_file:11464 isolated_file:0 unevictable:0 dirty:334 writeback:0 unstable:0 slab_reclaimable:6326 slab_unreclaimable:60009 mapped:59287 shmem:137 pagetables:3200 bounce:0 free:1422997 free_pcp:291 free_cma:0 Node 0 active_anon:313020kB inactive_anon:172kB active_file:19256kB inactive_file:46356kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:237048kB dirty:1336kB writeback:0kB shmem:548kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:3019420kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020096kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:676kB local_pcp:644kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 Normal free:2671508kB min:5580kB low:9168kB high:12756kB active_anon:313020kB inactive_anon:172kB active_file:19256kB inactive_file:46856kB unevictable:0kB writepending:1780kB present:4718592kB managed:3589320kB mlocked:0kB slab_reclaimable:25304kB slab_unreclaimable:240236kB kernel_stack:7328kB pagetables:12652kB bounce:0kB free_pcp:608kB local_pcp:452kB free_cma:0kB lowmem_reserve[]: 0 0 0 DMA32: 3*4kB (UM) 2*8kB (M) 2*16kB (M) 3*32kB (UM) 4*64kB (UM) 4*128kB (UM) 3*256kB (UM) 2*512kB (M) 2*1024kB (UM) 2*2048kB (UM) 735*4096kB (M) = 3019420kB Normal: 54*4kB (ME) 902*8kB (ME) 505*16kB (M) 400*32kB (UME) 239*64kB (UME) 211*128kB (UME) 172*256kB (UME) 90*512kB (UME) 34*1024kB (UME) 11*2048kB (UME) 599*4096kB (M) = 2671576kB 16846 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 313625 pages reserved syz-executor.3: vmalloc: allocation failure: 0 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 1 PID: 11313 Comm: syz-executor.3 Not tainted 4.9.202+ #0 ffff8801a28f7968 ffffffff81b55d2b 1ffff1003451ef2f ffff8801c9a28000 ffffffff82aab360 0000000000000001 0000000000400000 ffff8801a28f7a90 ffffffff81507f2c 0000000041b58ab3 ffffffff82e3a440 ffffffff81431d00 Call Trace: [<00000000653f2a03>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000653f2a03>] dump_stack+0xcb/0x130 lib/dump_stack.c:56 [<00000000aaa75b8d>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<00000000e1bb800a>] __vmalloc_node_range+0x368/0x610 mm/vmalloc.c:1733 [<000000001cfd8c6a>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000001cfd8c6a>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000001cfd8c6a>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<0000000073aab1fe>] sel_write_load+0x119/0xf60 security/selinux/selinuxfs.c:514 [<00000000b69ed115>] __vfs_write+0x116/0x560 fs/read_write.c:509 [<0000000075ac6203>] vfs_write+0x185/0x520 fs/read_write.c:559 [<00000000c21945f2>] SYSC_write fs/read_write.c:607 [inline] [<00000000c21945f2>] SyS_write+0x121/0x270 fs/read_write.c:599 [<000000007592c169>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000050d2332a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:78221 inactive_anon:42 isolated_anon:0 active_file:4814 inactive_file:12468 isolated_file:0 unevictable:0 dirty:1230 writeback:0 unstable:0 slab_reclaimable:6349 slab_unreclaimable:59877 mapped:59278 shmem:137 pagetables:3172 bounce:0 free:1422052 free_pcp:298 free_cma:0 Node 0 active_anon:312884kB inactive_anon:168kB active_file:19256kB inactive_file:50172kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:237112kB dirty:5216kB writeback:0kB shmem:548kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:3019420kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020096kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:676kB local_pcp:644kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 Normal free:2667920kB min:5580kB low:9168kB high:12756kB active_anon:312884kB inactive_anon:168kB active_file:19256kB inactive_file:50772kB unevictable:0kB writepending:5808kB present:4718592kB managed:3589320kB mlocked:0kB slab_reclaimable:25396kB slab_unreclaimable:239508kB kernel_stack:7232kB pagetables:12688kB bounce:0kB free_pcp:416kB local_pcp:284kB free_cma:0kB lowmem_reserve[]: 0 0 0 DMA32: 3*4kB (UM) 2*8kB (M) 2*16kB (M) 3*32kB (UM) 4*64kB (UM) 4*128kB (UM) 3*256kB (UM) 2*512kB (M) 2*1024kB (UM) 2*2048kB (UM) 735*4096kB (M) = 3019420kB Normal: 12*4kB (M) 463*8kB (UM) 507*16kB (UME) 396*32kB (UME) 239*64kB (UME) 211*128kB (UME) 172*256kB (UME) 90*512kB (UME) 34*1024kB (UME) 11*2048kB (UME) 599*4096kB (M) = 2667800kB 17736 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 313625 pages reserved syz-executor.4: vmalloc: allocation failure: 0 bytes, mode:0x24000c2(GFP_KERNEL|__GFP_HIGHMEM) CPU: 0 PID: 11367 Comm: syz-executor.4 Not tainted 4.9.202+ #0 ffff8801c9ac7968 ffffffff81b55d2b 1ffff10039358f2f ffff8801a127af80 ffffffff82aab360 0000000000000001 0000000000400000 ffff8801c9ac7a90 ffffffff81507f2c 0000000041b58ab3 ffffffff82e3a440 ffffffff81431d00 Call Trace: [<00000000653f2a03>] __dump_stack lib/dump_stack.c:15 [inline] [<00000000653f2a03>] dump_stack+0xcb/0x130 lib/dump_stack.c:56 [<00000000aaa75b8d>] warn_alloc.cold+0x76/0x93 mm/page_alloc.c:3069 [<00000000e1bb800a>] __vmalloc_node_range+0x368/0x610 mm/vmalloc.c:1733 [<000000001cfd8c6a>] __vmalloc_node mm/vmalloc.c:1755 [inline] [<000000001cfd8c6a>] __vmalloc_node_flags mm/vmalloc.c:1769 [inline] [<000000001cfd8c6a>] vmalloc+0x5c/0x70 mm/vmalloc.c:1784 [<0000000073aab1fe>] sel_write_load+0x119/0xf60 security/selinux/selinuxfs.c:514 [<00000000b69ed115>] __vfs_write+0x116/0x560 fs/read_write.c:509 [<0000000075ac6203>] vfs_write+0x185/0x520 fs/read_write.c:559 [<00000000c21945f2>] SYSC_write fs/read_write.c:607 [inline] [<00000000c21945f2>] SyS_write+0x121/0x270 fs/read_write.c:599 [<000000007592c169>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<0000000050d2332a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Mem-Info: active_anon:78444 inactive_anon:42 isolated_anon:0 active_file:4814 inactive_file:11473 isolated_file:0 unevictable:0 dirty:360 writeback:0 unstable:0 slab_reclaimable:6383 slab_unreclaimable:59980 mapped:59262 shmem:137 pagetables:3255 bounce:0 free:1422565 free_pcp:365 free_cma:0 Node 0 active_anon:313776kB inactive_anon:168kB active_file:19256kB inactive_file:45892kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:237048kB dirty:1440kB writeback:0kB shmem:548kB writeback_tmp:0kB unstable:0kB pages_scanned:0 all_unreclaimable? no DMA32 free:3019420kB min:4696kB low:7712kB high:10728kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3145324kB managed:3020096kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:676kB local_pcp:32kB free_cma:0kB lowmem_reserve[]: 0 3505 3505 Normal free:2671112kB min:5580kB low:9168kB high:12756kB active_anon:313776kB inactive_anon:168kB active_file:19256kB inactive_file:45892kB unevictable:0kB writepending:1440kB present:4718592kB managed:3589320kB mlocked:0kB slab_reclaimable:25532kB slab_unreclaimable:239752kB kernel_stack:7456kB pagetables:13020kB bounce:0kB free_pcp:1008kB local_pcp:420kB free_cma:0kB lowmem_reserve[]: 0 0 0 DMA32: 3*4kB (UM) 2*8kB (M) 2*16kB (M) 3*32kB (UM) 4*64kB (UM) 4*128kB (UM) 3*256kB (UM) 2*512kB (M) 2*1024kB (UM) 2*2048kB (UM) 735*4096kB (M) = 3019420kB Normal: 182*4kB (ME) 822*8kB (M) 506*16kB (ME) 381*32kB (UME) 242*64kB (UME) 211*128kB (UME) 172*256kB (UME) 90*512kB (UME) 34*1024kB (UME) 11*2048kB (UME) 599*4096kB (M) = 2671048kB 16411 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 313625 pages reserved