wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready divide error: 0000 [#1] PREEMPT SMP KASAN IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready CPU: 0 PID: 10042 Comm: syz-executor.1 Not tainted 4.18.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 Code: ieee80211 phy12: Selected rate control algorithm 'minstrel_ht' 8b 47 c8 31 d2 48 63 8d 24 fe ff ff 48 89 85 90 fe ff ff 48 63 85 78 fe ff ff 48 89 cb 48 c1 e1 0b c1 e3 0b 89 9d 60 fe ff ff <48> f7 f1 85 c0 48 89 85 68 fe ff ff 89 85 8c fe ff ff 0f 8e 93 10 ieee80211 phy13: Selected rate control algorithm 'minstrel_ht' RSP: 0018:ffff8800975ef598 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 1ffff1001416729f RDI: ffff88008b630488 RBP: ffff8800975ef790 R08: ffffea00022ec820 R09: fffff9400045d906 R10: fffff9400045d906 R11: ffffea00022ec837 R12: ffff88008b630480 R13: 00000000000000de R14: 0000000000000099 R15: ffff88008b6304b8 FS: 00007f3f55940700(0000) GS:ffff8800ba600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f624ec43710 CR3: 00000000a0c62000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: read_pages+0x2b1/0x510 mm/readahead.c:131 __do_page_cache_readahead+0x353/0x580 mm/readahead.c:209 ra_submit mm/internal.h:66 [inline] ondemand_readahead+0x42a/0xb40 mm/readahead.c:483 page_cache_sync_readahead mm/readahead.c:515 [inline] page_cache_sync_readahead+0x85/0xf0 mm/readahead.c:500 generic_file_buffered_read mm/filemap.c:2092 [inline] generic_file_read_iter+0xbd7/0x2600 mm/filemap.c:2362 call_read_iter include/linux/fs.h:1787 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x443/0x870 fs/read_write.c:418 vfs_read+0xff/0x310 fs/read_write.c:452 kernel_read+0x90/0x130 fs/read_write.c:431 IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready prepare_binprm+0x5bd/0x810 fs/exec.c:1580 __do_execve_file.isra.13+0xe59/0x1dd0 fs/exec.c:1799 do_execveat_common fs/exec.c:1865 [inline] do_execveat+0x18/0x20 fs/exec.c:1893 __do_sys_execveat fs/exec.c:1974 [inline] __se_sys_execveat fs/exec.c:1966 [inline] __x64_sys_execveat+0xe2/0x120 fs/exec.c:1966 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: ff ff c3 66 2e 0f 1f 84 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3f55940188 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffdf8fdefdf R14: 00007f3f55940300 R15: 0000000000022000 Modules linked in: wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 print_req_error: I/O error, dev loop0, sector 0 wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 ---[ end trace 60b4ead7ce1beefb ]--- divide error: 0000 [#2] PREEMPT SMP KASAN RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 CPU: 1 PID: 10072 Comm: syz-executor.0 Tainted: G D 4.18.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 Code: 8b 47 c8 31 d2 48 63 8d 24 fe ff ff 48 89 85 90 fe ff ff 48 63 85 78 fe ff ff 48 89 cb 48 c1 e1 0b c1 e3 0b 89 9d 60 fe ff ff <48> f7 f1 85 c0 48 89 85 68 fe ff ff 89 85 8c fe ff ff 0f 8e 93 10 RSP: 0018:ffff88008a6f7598 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 1ffff10014bbfb8f RDI: ffff88008b630d88 RBP: ffff88008a6f7790 R08: ffffea00026228e0 R09: fffff940004c451e R10: fffff940004c451e R11: ffffea00026228f7 R12: ffff88008b630d80 R13: 00000000000000de R14: 0000000000000099 R15: ffff88008b630db8 FS: 00007f8ea2e86700(0000) GS:ffff8800ba700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556be6aa8040 CR3: 00000000a098c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Code: 8b read_pages+0x2b1/0x510 mm/readahead.c:131 47 __do_page_cache_readahead+0x353/0x580 mm/readahead.c:209 c8 ra_submit mm/internal.h:66 [inline] ondemand_readahead+0x42a/0xb40 mm/readahead.c:483 page_cache_sync_readahead mm/readahead.c:515 [inline] page_cache_sync_readahead+0x85/0xf0 mm/readahead.c:500 generic_file_buffered_read mm/filemap.c:2092 [inline] generic_file_read_iter+0xbd7/0x2600 mm/filemap.c:2362 31 call_read_iter include/linux/fs.h:1787 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x443/0x870 fs/read_write.c:418 d2 vfs_read+0xff/0x310 fs/read_write.c:452 48 kernel_read+0x90/0x130 fs/read_write.c:431 prepare_binprm+0x5bd/0x810 fs/exec.c:1580 63 __do_execve_file.isra.13+0xe59/0x1dd0 fs/exec.c:1799 8d do_execveat_common fs/exec.c:1865 [inline] do_execveat+0x18/0x20 fs/exec.c:1893 __do_sys_execveat fs/exec.c:1974 [inline] __se_sys_execveat fs/exec.c:1966 [inline] __x64_sys_execveat+0xe2/0x120 fs/exec.c:1966 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 24 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: ff ff c3 66 2e 0f 1f fe 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d ff 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 ff c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8ea2e86188 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffc39fd2f9f R14: 00007f8ea2e86300 R15: 0000000000022000 Modules linked in: 48 Bluetooth: hci3: command 0x0419 tx timeout 89 ieee80211 phy14: Selected rate control algorithm 'minstrel_ht' wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 Bluetooth: hci2: command 0x0419 tx timeout 85 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 90 Bluetooth: hci5: command 0x0419 tx timeout wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 Bluetooth: hci1: command 0x0419 tx timeout fe ieee80211 phy15: Selected rate control algorithm 'minstrel_ht' wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready ff Bluetooth: hci0: command 0x0419 tx timeout wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 Bluetooth: hci4: command 0x0419 tx timeout ff ---[ end trace 60b4ead7ce1beefc ]--- IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready Code: 48 8b IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 47 63 c8 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready 31 85 d2 78 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 48 fe IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready divide error: 0000 [#3] PREEMPT SMP KASAN 63 CPU: 0 PID: 10098 Comm: syz-executor.4 Tainted: G D 4.18.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 Code: 8b 47 c8 31 d2 48 63 8d 24 fe ff ff 48 89 85 90 fe ff ff 48 63 85 78 fe ff ff 48 89 cb 48 c1 e1 0b c1 e3 0b 89 9d 60 fe ff ff <48> f7 8d f1 85 c0 48 89 85 68 fe ff ff 89 85 8c fe ff ff 0f 8e 93 24 10 RSP: 0018:ffff880089d2f598 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 1ffff1001424dc1f RDI: ffff88008b631688 RBP: ffff880089d2f790 R08: ffffea00022ec720 R09: fffff9400045d8e6 R10: fffff9400045d8e6 R11: ffffea00022ec737 R12: ffff88008b631680 R13: 00000000000000de R14: 0000000000000099 R15: ffff88008b6316b8 FS: 00007f5147319700(0000) GS:ffff8800ba600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000005680c0 CR3: 000000009fe3d000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: read_pages+0x2b1/0x510 mm/readahead.c:131 __do_page_cache_readahead+0x353/0x580 mm/readahead.c:209 ra_submit mm/internal.h:66 [inline] ondemand_readahead+0x42a/0xb40 mm/readahead.c:483 page_cache_sync_readahead mm/readahead.c:515 [inline] page_cache_sync_readahead+0x85/0xf0 mm/readahead.c:500 generic_file_buffered_read mm/filemap.c:2092 [inline] generic_file_read_iter+0xbd7/0x2600 mm/filemap.c:2362 call_read_iter include/linux/fs.h:1787 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x443/0x870 fs/read_write.c:418 vfs_read+0xff/0x310 fs/read_write.c:452 kernel_read+0x90/0x130 fs/read_write.c:431 prepare_binprm+0x5bd/0x810 fs/exec.c:1580 __do_execve_file.isra.13+0xe59/0x1dd0 fs/exec.c:1799 do_execveat_common fs/exec.c:1865 [inline] do_execveat+0x18/0x20 fs/exec.c:1893 __do_sys_execveat fs/exec.c:1974 [inline] __se_sys_execveat fs/exec.c:1966 [inline] __x64_sys_execveat+0xe2/0x120 fs/exec.c:1966 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5147319188 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffd9245977f R14: 00007f5147319300 R15: 0000000000022000 Modules linked in: divide error: 0000 [#4] PREEMPT SMP KASAN ff CPU: 1 PID: 10108 Comm: syz-executor.3 Tainted: G D 4.18.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 Code: ff 8b 47 c8 31 d2 48 63 8d 24 fe ff ff 48 89 85 90 fe ff ff 48 63 85 78 fe ff ff 48 89 cb 48 c1 e1 0b c1 e3 0b 89 9d 60 fe ff ff <48> f7 f1 85 c0 48 89 85 68 fe ff ff 89 85 8c fe ff ff 0f 8e 93 10 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 RSP: 0018:ffff88009f4f7598 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 1ffff10015a5381f RDI: ffff88008b6e8488 RBP: ffff88009f4f7790 R08: ffffea00022eeae0 R09: fffff9400045dd5e R10: fffff9400045dd5e R11: ffffea00022eeaf7 R12: ffff88008b6e8480 R13: 00000000000000de R14: 0000000000000099 R15: ffff88008b6e84b8 FS: 00007fa257e05700(0000) GS:ffff8800ba700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000005680c0 CR3: 00000000a3388000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 48 read_pages+0x2b1/0x510 mm/readahead.c:131 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready __do_page_cache_readahead+0x353/0x580 mm/readahead.c:209 ra_submit mm/internal.h:66 [inline] ondemand_readahead+0x42a/0xb40 mm/readahead.c:483 page_cache_sync_readahead mm/readahead.c:515 [inline] page_cache_sync_readahead+0x85/0xf0 mm/readahead.c:500 generic_file_buffered_read mm/filemap.c:2092 [inline] generic_file_read_iter+0xbd7/0x2600 mm/filemap.c:2362 89 call_read_iter include/linux/fs.h:1787 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x443/0x870 fs/read_write.c:418 cb vfs_read+0xff/0x310 fs/read_write.c:452 kernel_read+0x90/0x130 fs/read_write.c:431 prepare_binprm+0x5bd/0x810 fs/exec.c:1580 48 __do_execve_file.isra.13+0xe59/0x1dd0 fs/exec.c:1799 do_execveat_common fs/exec.c:1865 [inline] do_execveat+0x18/0x20 fs/exec.c:1893 __do_sys_execveat fs/exec.c:1974 [inline] __se_sys_execveat fs/exec.c:1966 [inline] __x64_sys_execveat+0xe2/0x120 fs/exec.c:1966 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa257e05188 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007fffd3432b3f R14: 00007fa257e05300 R15: 0000000000022000 Modules linked in: ---[ end trace 60b4ead7ce1beefd ]--- divide error: 0000 [#5] PREEMPT SMP KASAN RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 CPU: 0 PID: 10120 Comm: syz-executor.5 Tainted: G D 4.18.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 Code: 8b 47 c8 31 d2 48 63 8d 24 fe ff ff 48 89 85 90 fe ff ff 48 63 85 78 fe ff ff 48 89 cb 48 c1 e1 0b c1 e3 0b 89 9d 60 fe ff ff <48> f7 f1 85 c0 48 89 85 68 fe ff ff 89 85 8c fe ff ff 0f 8e 93 10 Code: RSP: 0018:ffff8800b53c7598 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 1ffff100157ec55f RDI: ffff88008b6e9208 RBP: ffff8800b53c7790 R08: ffffea00022ecce0 R09: fffff9400045d99e R10: fffff9400045d99e R11: ffffea00022eccf7 R12: ffff88008b6e9200 R13: 00000000000000de R14: 0000000000000099 R15: ffff88008b6e9238 FS: 00007fb1328d8700(0000) GS:ffff8800ba600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000568000 CR3: 00000000acbf2000 CR4: 00000000001406f0 8b DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 47 read_pages+0x2b1/0x510 mm/readahead.c:131 __do_page_cache_readahead+0x353/0x580 mm/readahead.c:209 ra_submit mm/internal.h:66 [inline] ondemand_readahead+0x42a/0xb40 mm/readahead.c:483 c8 page_cache_sync_readahead mm/readahead.c:515 [inline] page_cache_sync_readahead+0x85/0xf0 mm/readahead.c:500 generic_file_buffered_read mm/filemap.c:2092 [inline] generic_file_read_iter+0xbd7/0x2600 mm/filemap.c:2362 call_read_iter include/linux/fs.h:1787 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x443/0x870 fs/read_write.c:418 31 vfs_read+0xff/0x310 fs/read_write.c:452 d2 kernel_read+0x90/0x130 fs/read_write.c:431 prepare_binprm+0x5bd/0x810 fs/exec.c:1580 __do_execve_file.isra.13+0xe59/0x1dd0 fs/exec.c:1799 do_execveat_common fs/exec.c:1865 [inline] do_execveat+0x18/0x20 fs/exec.c:1893 __do_sys_execveat fs/exec.c:1974 [inline] __se_sys_execveat fs/exec.c:1966 [inline] __x64_sys_execveat+0xe2/0x120 fs/exec.c:1966 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: 48 ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc 63 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb1328d8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffdb081d09f R14: 00007fb1328d8300 R15: 0000000000022000 Modules linked in: fe 8d ff 24 ff fe 48 ff c1 ff 89 divide error: 0000 [#6] PREEMPT SMP KASAN 85 CPU: 1 PID: 10130 Comm: syz-executor.2 Tainted: G D 4.18.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 Code: 8b 47 c8 31 d2 48 63 8d 24 fe ff ff 48 89 85 90 fe ff ff 48 63 85 78 fe ff ff 48 89 cb 48 c1 e1 0b c1 e3 0b 89 9d 60 fe ff ff <48> f7 f1 85 c0 48 89 85 68 fe ff ff 89 85 8c fe ff ff 0f 8e 93 10 RSP: 0018:ffff88009fc7f598 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 1ffff100168f5aef RDI: ffff88008b6e9b08 RBP: ffff88009fc7f790 R08: ffffea00022ef720 R09: fffff9400045dee6 R10: fffff9400045dee6 R11: ffffea00022ef737 R12: ffff88008b6e9b00 R13: 00000000000000de R14: 0000000000000099 R15: ffff88008b6e9b38 FS: 00007f9aa754d700(0000) GS:ffff8800ba700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbbe4f61000 CR3: 00000000b57a6000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: e1 read_pages+0x2b1/0x510 mm/readahead.c:131 __do_page_cache_readahead+0x353/0x580 mm/readahead.c:209 90 ra_submit mm/internal.h:66 [inline] ondemand_readahead+0x42a/0xb40 mm/readahead.c:483 page_cache_sync_readahead mm/readahead.c:515 [inline] page_cache_sync_readahead+0x85/0xf0 mm/readahead.c:500 generic_file_buffered_read mm/filemap.c:2092 [inline] generic_file_read_iter+0xbd7/0x2600 mm/filemap.c:2362 fe call_read_iter include/linux/fs.h:1787 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x443/0x870 fs/read_write.c:418 0b vfs_read+0xff/0x310 fs/read_write.c:452 kernel_read+0x90/0x130 fs/read_write.c:431 prepare_binprm+0x5bd/0x810 fs/exec.c:1580 __do_execve_file.isra.13+0xe59/0x1dd0 fs/exec.c:1799 ff do_execveat_common fs/exec.c:1865 [inline] do_execveat+0x18/0x20 fs/exec.c:1893 __do_sys_execveat fs/exec.c:1974 [inline] __se_sys_execveat fs/exec.c:1966 [inline] __x64_sys_execveat+0xe2/0x120 fs/exec.c:1966 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9aa754d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000142 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffd40a1d2bf R14: 00007f9aa754d300 R15: 0000000000022000 Modules linked in: 48 c1 89 ---[ end trace 60b4ead7ce1beefe ]--- 85 e3 90 RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 fe ff ff 0b ff Code: 48 48 63 63 85 89 78 8b fe 9d ff 85 ---[ end trace 60b4ead7ce1beeff ]--- 47 ff c8 48 60 89 78 RIP: 0010:fill_meta_index fs/squashfs/file.c:256 [inline] RIP: 0010:read_blocklist fs/squashfs/file.c:345 [inline] RIP: 0010:squashfs_readpage+0x81b/0x21d1 fs/squashfs/file.c:482 fe cb 31 Code: fe 48 ff 8b ff c1 d2 47 ff e1 ff c8 48 0b 48 c1 63 31 89 d2 8d e3 <48> 0b 24 89 f7 48 f1 63 fe 9d 85 8d cb 60 ff fe c0 24 48 fe 48 ff c1 ff 89 ff e1 ff 0b ff 85 48 c1 <48> 68 f7 fe 89 e3 48 ff 89 0b f1 89 85 ff 85 9d 85 89 90 85 90 8c c0 fe fe ff fe 60 ff fe 48 ff ff ff ff ff ff <48> 48 f7 63 f1 85 0f 89 85 48 8e 78 c0 85 48 fe 93 63 89 68 85 85 10 ff fe 68 78 fe ff ff ff RSP: 0018:ffff8800975ef598 EFLAGS: 00010246 48 ff ff 89 89 fe RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 89 85 cb 8c ff RDX: 0000000000000000 RSI: 1ffff1001416729f RDI: ffff88008b630488 48 RBP: ffff8800975ef790 R08: ffffea00022ec820 R09: fffff9400045d906 85 fe c1 R10: fffff9400045d906 R11: ffffea00022ec837 R12: ffff88008b630480 ff R13: 00000000000000de R14: 0000000000000099 R15: ffff88008b6304b8 e1 ff 0b ff 8c FS: 00007f3f55940700(0000) GS:ffff8800ba600000(0000) knlGS:0000000000000000 48 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 c1 0f fe 8e e3 CR2: 00007fbbe4fa6000 CR3: 00000000a0c62000 CR4: 00000000001406f0 ff 93 89 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 ff DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 0f 10 cb