f2fs_msg: 30 callbacks suppressed F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock F2FS-fs : inject kmalloc in f2fs_kmalloc of mount_bdev+0x2fc/0x3b0 fs/super.c:1158 ================================================================================ UBSAN: Undefined behaviour in net/netfilter/ipset/ip_set_hash_gen.h:125:6 shift exponent 32 is too large for 32-bit type 'unsigned int' F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) CPU: 0 PID: 16107 Comm: syz-executor.3 Not tainted 4.19.148-syzkaller #0 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+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock htable_bits net/netfilter/ipset/ip_set_hash_gen.h:125 [inline] hash_netport_create.cold+0x1a/0x1f net/netfilter/ipset/ip_set_hash_gen.h:1290 ip_set_create+0x70e/0x1380 net/netfilter/ipset/ip_set_core.c:940 F2FS-fs : inject kmalloc in f2fs_kmalloc of mount_bdev+0x2fc/0x3b0 fs/super.c:1158 nfnetlink_rcv_msg+0xeff/0x1210 net/netfilter/nfnetlink.c:233 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 nfnetlink_rcv+0x1b2/0x41b net/netfilter/nfnetlink.c:565 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x717/0xcc0 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc7/0x130 net/socket.c:632 sock_no_sendpage+0xf5/0x140 net/core/sock.c:2668 kernel_sendpage net/socket.c:3378 [inline] sock_sendpage+0xdf/0x140 net/socket.c:847 pipe_to_sendpage+0x268/0x330 fs/splice.c:452 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x3af/0x820 fs/splice.c:627 splice_from_pipe fs/splice.c:662 [inline] generic_splice_sendpage+0xd4/0x140 fs/splice.c:833 do_splice_from fs/splice.c:852 [inline] do_splice fs/splice.c:1154 [inline] __do_sys_splice fs/splice.c:1428 [inline] __se_sys_splice+0xf31/0x15f0 fs/splice.c:1408 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45dd99 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4a6d0a7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00000000000350c0 RCX: 000000000045dd99 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000118bf78 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffe4901b71f R14: 00007f4a6d0a89c0 R15: 000000000118bf2c ================================================================================ audit: type=1400 audit(1601545229.479:42): avc: denied { sys_admin } for pid=16124 comm="syz-executor.2" capability=21 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=cap_userns permissive=1 input: syz1 as /devices/virtual/input/input17 F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock F2FS-fs : inject kmalloc in f2fs_kmalloc of mount_bdev+0x2fc/0x3b0 fs/super.c:1158 input: syz1 as /devices/virtual/input/input19 F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock F2FS-fs : inject kmalloc in f2fs_kmalloc of mount_bdev+0x2fc/0x3b0 fs/super.c:1158 input: syz1 as /devices/virtual/input/input20 F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock F2FS-fs : inject kmalloc in f2fs_kmalloc of mount_bdev+0x2fc/0x3b0 fs/super.c:1158 F2FS-fs : inject kmalloc in f2fs_kmalloc of mount_bdev+0x2fc/0x3b0 fs/super.c:1158 input: syz1 as /devices/virtual/input/input21 F2FS-fs : inject kmalloc in f2fs_kmalloc of mount_bdev+0x2fc/0x3b0 fs/super.c:1158 F2FS-fs : inject kmalloc in f2fs_kmalloc of mount_bdev+0x2fc/0x3b0 fs/super.c:1158 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. device bond1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready 8021q: adding VLAN 0 to HW filter on device bond1 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. device bond2 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready 8021q: adding VLAN 0 to HW filter on device bond2 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. device bond3 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): bond3: link is not ready 8021q: adding VLAN 0 to HW filter on device bond3 xt_SECMARK: only valid in 'mangle' or 'security' table, not 'raw' netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. device bond4 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): bond4: link is not ready 8021q: adding VLAN 0 to HW filter on device bond4 wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. xt_SECMARK: only valid in 'mangle' or 'security' table, not 'raw' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. f2fs_msg: 6 callbacks suppressed F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock xt_SECMARK: only valid in 'mangle' or 'security' table, not 'raw' F2FS-fs (loop0): invalid crc value F2FS-fs (loop0): invalid crc value F2FS-fs (loop0): Failed to get valid F2FS checkpoint F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock xt_SECMARK: only valid in 'mangle' or 'security' table, not 'raw' F2FS-fs (loop0): invalid crc value F2FS-fs (loop0): invalid crc value F2FS-fs (loop0): Failed to get valid F2FS checkpoint