IPVS: ftp: loaded support on port[0] = 21 ================================================================================ UBSAN: Undefined behaviour in fs/f2fs/super.c:2227:16 shift exponent 65535 is too large for 32-bit type 'int' CPU: 0 PID: 8430 Comm: syz-executor.5 Not tainted 4.19.152-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 sanity_check_raw_super fs/f2fs/super.c:2227 [inline] read_raw_super_block fs/f2fs/super.c:2631 [inline] f2fs_fill_super.cold+0x1f9/0x5fb fs/f2fs/super.c:2842 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 mount_fs+0xa3/0x318 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x51c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4608aa Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007f29afcdca88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f29afcdcb20 RCX: 00000000004608aa RDX: 0000000020000000 RSI: 0000000020000080 RDI: 00007f29afcdcae0 RBP: 00007f29afcdcae0 R08: 00007f29afcdcb20 R09: 0000000020000000 R10: 0000000000014015 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000080 R14: 0000000020000200 R15: 0000000020000180 ================================================================================ F2FS-fs (loop5): Invalid blocksize (2147483648), supports only 4KB F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop5): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop5): Can't find valid F2FS filesystem in 2th superblock F2FS-fs (loop5): Invalid blocksize (2147483648), supports only 4KB F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop5): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop5): Can't find valid F2FS filesystem in 2th superblock F2FS-fs (loop5): Invalid blocksize (2147483648), supports only 4KB F2FS-fs (loop5): Can't find valid F2FS filesystem in 1th superblock device lo entered promiscuous mode IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. audit: type=1800 audit(1603066427.254:15): pid=8569 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="sda1" ino=15841 res=0 audit: type=1800 audit(1603066427.284:16): pid=8569 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="sda1" ino=15841 res=0 netlink: 80 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. audit: type=1800 audit(1603066427.304:17): pid=8576 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="sda1" ino=15841 res=0 netlink: 80 bytes leftover after parsing attributes in process `syz-executor.2'. IPVS: ftp: loaded support on port[0] = 21 audit: type=1800 audit(1603066427.314:18): pid=8569 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="sda1" ino=15841 res=0 EXT4-fs (loop2): Unrecognized mount option "#" or missing value EXT4-fs (loop2): Unrecognized mount option "#" or missing value EXT4-fs (loop3): Unrecognized mount option "#" or missing value dccp_invalid_packet: pskb_may_pull failed dccp_invalid_packet: pskb_may_pull failed IPVS: ftp: loaded support on port[0] = 21 audit: type=1400 audit(1603066430.284:19): avc: denied { sys_admin } for pid=8721 comm="syz-executor.5" capability=21 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=cap_userns permissive=1 BTRFS: device fsid f90cac8b-044b-4fa8-8bee-4b8d3da88dc2 devid 0 transid 0 /dev/loop3 IPVS: ftp: loaded support on port[0] = 21 EXT4-fs (loop4): VFS: Can't find ext4 filesystem EXT4-fs (loop4): VFS: Can't find ext4 filesystem BTRFS: device fsid f90cac8b-044b-4fa8-8bee-4b8d3da88dc2 devid 1 transid 7 /dev/loop5 device batadv0 entered promiscuous mode BTRFS info (device loop5): unrecognized mount option ' ' BTRFS error (device loop5): open_ctree failed kvm: vcpu 0: requested 128 ns lapic timer period limited to 200000 ns audit: type=1800 audit(1603066432.844:20): pid=8874 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed comm="syz-executor.2" name="bus" dev="sda1" ino=15862 res=0 audit: type=1800 audit(1603066434.004:21): pid=8931 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=15883 res=0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=8930 comm=syz-executor.1 9pnet: p9_fd_create_tcp (8934): problem connecting socket to 127.0.0.1 CIFS VFS: Malformed UNC in devname. UBIFS error (pid: 8941): cannot open "/dev/loop3", error -22 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=8940 comm=syz-executor.1 9pnet: p9_fd_create_tcp (8941): problem connecting socket to 127.0.0.1 UBIFS error (pid: 8948): cannot open "/dev/loop3", error -22 9pnet: p9_fd_create_tcp (8957): problem connecting socket to 127.0.0.1 UBIFS error (pid: 8959): cannot open "/dev/loop3", error -22 device lo entered promiscuous mode