Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB MINIX-fs: mounting unchecked file system, running fsck is recommended Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB BUG: unable to handle kernel NULL pointer dereference at (null) IP: test_and_set_bit arch/x86/include/asm/bitops.h:220 [inline] IP: test_and_set_bit_lock arch/x86/include/asm/bitops.h:234 [inline] IP: trylock_buffer include/linux/buffer_head.h:367 [inline] IP: lock_buffer include/linux/buffer_head.h:373 [inline] IP: alloc_branch fs/minix/itree_common.c:88 [inline] IP: get_block+0x6a3/0x1100 fs/minix/itree_common.c:191 PGD 9598f067 P4D 9598f067 PUD 903aa067 PMD 0 Oops: 0002 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 9463 Comm: syz-executor.4 Not tainted 4.14.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88804dbde3c0 task.stack: ffff88804e980000 RIP: 0010:test_and_set_bit arch/x86/include/asm/bitops.h:220 [inline] RIP: 0010:test_and_set_bit_lock arch/x86/include/asm/bitops.h:234 [inline] RIP: 0010:trylock_buffer include/linux/buffer_head.h:367 [inline] RIP: 0010:lock_buffer include/linux/buffer_head.h:373 [inline] RIP: 0010:alloc_branch fs/minix/itree_common.c:88 [inline] RIP: 0010:get_block+0x6a3/0x1100 fs/minix/itree_common.c:191 RSP: 0018:ffff88804e987808 EFLAGS: 00010246 RAX: 0000000000000007 RBX: ffff88804e987910 RCX: 1ffffffff0fe79a4 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff88804dbde3e4 RBP: ffff88804e987988 R08: 0000000000000001 R09: 0000000000000003 R10: ffff88804dbdecc0 R11: ffff88804dbde3c0 R12: ffff888082721970 R13: ffff88804e9878d4 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f3689f08700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000008cff4000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: minix_get_block+0xd6/0x100 fs/minix/inode.c:379 __block_write_begin_int+0x33a/0x1000 fs/buffer.c:2038 __block_write_begin fs/buffer.c:2088 [inline] block_write_begin+0x58/0x260 fs/buffer.c:2147 minix_write_begin+0x35/0xc0 fs/minix/inode.c:415 generic_perform_write+0x1c9/0x420 mm/filemap.c:3047 26278 total pagecache pages 0 pages in swap cache __generic_file_write_iter+0x227/0x590 mm/filemap.c:3172 generic_file_write_iter+0x36f/0x650 mm/filemap.c:3200 call_write_iter include/linux/fs.h:1778 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x44e/0x630 fs/read_write.c:482 Swap cache stats: add 0, delete 0, find 0/0 vfs_write+0x17f/0x4d0 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xf2/0x210 fs/read_write.c:582 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 Free swap = 0kB entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45ca69 Total swap = 0kB RSP: 002b:00007f3689f07c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000050b940 RCX: 000000000045ca69 RDX: 000000000001033b RSI: 0000000020000280 RDI: 0000000000000005 1965979 pages RAM RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000cab R14: 00000000004cf032 R15: 00007f3689f086d4 Code: 0 pages HighMem/MovableOnly ef 338455 pages reserved 08 0 pages cma reserved 00 00 49 8b bf 28 01 00 00 b9 08 00 00 00 e8 c3 52 c6 ff 31 d2 be 74 01 00 00 48 c7 c7 20 ec 99 86 49 89 c7 e8 cd 16 6d ff 49 0f ba 2f 02 0f 83 1e fe ff ff e8 bc b6 89 ff 4c 89 ff e8 RIP: test_and_set_bit arch/x86/include/asm/bitops.h:220 [inline] RSP: ffff88804e987808 RIP: test_and_set_bit_lock arch/x86/include/asm/bitops.h:234 [inline] RSP: ffff88804e987808 RIP: trylock_buffer include/linux/buffer_head.h:367 [inline] RSP: ffff88804e987808 RIP: lock_buffer include/linux/buffer_head.h:373 [inline] RSP: ffff88804e987808 RIP: alloc_branch fs/minix/itree_common.c:88 [inline] RSP: ffff88804e987808 RIP: get_block+0x6a3/0x1100 fs/minix/itree_common.c:191 RSP: ffff88804e987808 CR2: 0000000000000000 attempt to access beyond end of device loop4: rw=2049, want=88578, limit=52 Buffer I/O error on dev loop4, logical block 44288, lost async page write syz-executor.2: vmalloc: allocation failure: 17179869200 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null) attempt to access beyond end of device loop4: rw=2049, want=88580, limit=52 syz-executor.2 cpuset=/ mems_allowed=0-1 Buffer I/O error on dev loop4, logical block 44289, lost async page write CPU: 0 PID: 9479 Comm: syz-executor.2 Tainted: G D 4.14.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 attempt to access beyond end of device Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 warn_alloc.cold+0x96/0x1af mm/page_alloc.c:3249 loop4: rw=2049, want=88582, limit=52 __vmalloc_node_range mm/vmalloc.c:1789 [inline] __vmalloc_node_range+0x3b2/0x690 mm/vmalloc.c:1749 Buffer I/O error on dev loop4, logical block 44290, lost async page write __vmalloc_node mm/vmalloc.c:1818 [inline] __vmalloc_node_flags mm/vmalloc.c:1832 [inline] vzalloc+0x42/0x50 mm/vmalloc.c:1871 ip_set_alloc+0x47/0x60 net/netfilter/ipset/ip_set_core.c:261 attempt to access beyond end of device hash_ipmark_create+0x433/0xb00 net/netfilter/ipset/ip_set_hash_gen.h:1303 ip_set_create+0x5eb/0xf22 net/netfilter/ipset/ip_set_core.c:909 loop4: rw=2049, want=88584, limit=52 nfnetlink_rcv_msg+0x9e1/0xc00 net/netfilter/nfnetlink.c:214 Buffer I/O error on dev loop4, logical block 44291, lost async page write netlink_rcv_skb+0x127/0x370 net/netlink/af_netlink.c:2433 nfnetlink_rcv+0x1ab/0x1650 net/netfilter/nfnetlink.c:515 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313 netlink_sendmsg+0x64a/0xbb0 net/netlink/af_netlink.c:1878 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45ca69 RSP: 002b:00007f9faa4e0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004fd900 RCX: 000000000045ca69 RDX: 0000000000000000 RSI: 0000000020001080 RDI: 0000000000000008 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000092a R14: 00000000004cbeb7 R15: 00007f9faa4e16d4 Mem-Info: active_anon:191862 inactive_anon:11348 isolated_anon:0 active_file:12470 inactive_file:10453 isolated_file:0 unevictable:1536 dirty:99 writeback:0 unstable:0 slab_reclaimable:17163 slab_unreclaimable:121376 mapped:60562 shmem:4203 pagetables:1426 bounce:0 free:1164775 free_pcp:328 free_cma:0 Node 0 active_anon:767572kB inactive_anon:45392kB active_file:49748kB inactive_file:41912kB unevictable:6144kB isolated(anon):0kB isolated(file):0kB mapped:242248kB dirty:392kB writeback:0kB shmem:16812kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 729088kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 active_anon:0kB inactive_anon:0kB active_file:132kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:4kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:220kB low:272kB high:324kB 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 2559 2559 2559 2559 Node 0 DMA32 free:838780kB min:36296kB low:45368kB high:54440kB active_anon:788328kB inactive_anon:45404kB active_file:49748kB inactive_file:41920kB unevictable:6144kB writepending:480kB present:3129332kB managed:2623996kB mlocked:6144kB kernel_stack:8032kB pagetables:6052kB bounce:0kB free_pcp:1008kB local_pcp:412kB free_cma:0kB ---[ end trace 773ae679e40555d6 ]---