EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
================================================================================
UBSAN: Undefined behaviour in arch/x86/kernel/uprobes.c:276:56
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.0'.
index 4 is out of range for type 'insn_byte_t [4]'
CPU: 1 PID: 26373 Comm: syz-executor.2 Not tainted 4.19.150-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_out_of_bounds.cold+0x63/0x6f lib/ubsan.c:383
 is_prefix_bad arch/x86/kernel/uprobes.c:276 [inline]
 uprobe_init_insn arch/x86/kernel/uprobes.c:299 [inline]
 arch_uprobe_analyze_insn+0x9d8/0xaa0 arch/x86/kernel/uprobes.c:868
 prepare_uprobe kernel/events/uprobes.c:611 [inline]
 install_breakpoint kernel/events/uprobes.c:654 [inline]
 uprobe_mmap+0x8c2/0xa70 kernel/events/uprobes.c:1096
 mmap_region+0x552/0x1510 mm/mmap.c:1803
 do_mmap+0x8e8/0x1080 mm/mmap.c:1530
 do_mmap_pgoff include/linux/mm.h:2326 [inline]
 vm_mmap_pgoff+0x197/0x200 mm/util.c:357
 ksys_mmap_pgoff+0x2d1/0x660 mm/mmap.c:1580
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45de59
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:00007f6eb19afc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000021400 RCX: 000000000045de59
RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020007000
RBP: 000000000118c0c8 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000412 R11: 0000000000000246 R12: 000000000118c07c
R13: 00007fffda5b560f R14: 00007f6eb19b09c0 R15: 000000000118c07c
================================================================================
squashfs: SQUASHFS error: unable to read xattr id index table
audit: type=1804 audit(1602916885.986:29): pid=26391 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir836150699/syzkaller.WV8koA/1143/bus/file0" dev="sda1" ino=16929 res=1
overlayfs: failed to resolve './bus': -2
overlayfs: './file0' not a directory
audit: type=1804 audit(1602916886.056:30): pid=26391 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir836150699/syzkaller.WV8koA/1143/bus/bus/file0" dev="sda1" ino=17059 res=1
FAT-fs (loop1): Unrecognized mount option "uid<00000000000000000000" or missing value
FAT-fs (loop1): Unrecognized mount option "uid<00000000000000000000" or missing value
rock: directory entry would overflow storage
rock: sig=0xa124, size=4, remaining=3
isofs_fill_super: root inode is not a directory. Corrupted media?
rock: directory entry would overflow storage
rock: sig=0xa124, size=4, remaining=3
isofs_fill_super: root inode is not a directory. Corrupted media?
audit: type=1400 audit(1602916886.746:31): avc:  denied  { mac_admin } for  pid=26422 comm="syz-executor.1" capability=33  scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.0'.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=104 sclass=netlink_route_socket pid=26461 comm=syz-executor.2
libceph: mon0 [::1]:6 socket error on write
netlink: 72 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 72 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 'syz-executor.2': attribute type 10 has an invalid length.
openvswitch: netlink: Flow actions attr not present in new flow.
netlink: 'syz-executor.2': attribute type 10 has an invalid length.
openvswitch: netlink: Flow actions attr not present in new flow.
ceph: No mds server is up or the cluster is laggy
new mount options do not match the existing superblock, will be ignored
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
new mount options do not match the existing superblock, will be ignored
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
EXT4-fs (loop5): VFS: Can't find ext4 filesystem
autofs4:pid:26604:autofs_fill_super: called with bogus options
autofs4:pid:26608:autofs_fill_super: called with bogus options
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 40 bytes leftover after parsing attributes in process `syz-executor.1'.
autofs4:pid:26643:autofs_fill_super: called with bogus options
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 72 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'.
netlink: 72 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 72 bytes leftover after parsing attributes in process `syz-executor.3'.
F2FS-fs (loop3): Invalid segment/section count (31, 0 x 1)
F2FS-fs (loop3): Can't find valid F2FS filesystem in 1th superblock
F2FS-fs (loop3): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop3): Can't find valid F2FS filesystem in 2th superblock
F2FS-fs (loop3): Invalid segment/section count (31, 0 x 1)
F2FS-fs (loop3): Can't find valid F2FS filesystem in 1th superblock
F2FS-fs (loop3): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop3): Can't find valid F2FS filesystem in 2th superblock
overlayfs: failed to resolve './file1ÍHz': -2
overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off.
XFS (loop0): unknown mount option [].
overlayfs: filesystem on './bus' not supported as upperdir