netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'. overlayfs: unrecognized mount option "18446744073709551615" or missing value BUG: sleeping function called from invalid context at drivers/tty/vt/vt.c:2599 in_atomic(): 1, irqs_disabled(): 1, pid: 6086, name: syz-executor.0 3 locks held by syz-executor.0/6086: #0: 000000005289c602 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 00000000cc47b93c (&(&tty->flow_lock)->rlock){....}, at: spin_lock_irq include/linux/spinlock.h:354 [inline] #1: 00000000cc47b93c (&(&tty->flow_lock)->rlock){....}, at: n_tty_ioctl_helper+0xcc/0x3a0 drivers/tty/tty_ioctl.c:914 #2: 000000005289c602 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref+0x1d/0x80 drivers/tty/tty_ldisc.c:293 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. irq event stamp: 2566 hardirqs last enabled at (2565): [] do_syscall_64+0x21/0x620 arch/x86/entry/common.c:280 hardirqs last disabled at (2566): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (2566): [] _raw_spin_lock_irq+0x35/0x80 kernel/locking/spinlock.c:160 softirqs last enabled at (0): [] copy_process.part.0+0x15b9/0x8260 kernel/fork.c:1856 softirqs last disabled at (0): [<0000000000000000>] (null) Preemption disabled at: [<0000000000000000>] (null) CPU: 0 PID: 6086 Comm: syz-executor.0 Not tainted 4.19.211-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+0x1fc/0x2ef lib/dump_stack.c:118 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6192 do_con_write+0x116/0x1d90 drivers/tty/vt/vt.c:2599 con_write+0x22/0xb0 drivers/tty/vt/vt.c:3163 n_hdlc_send_frames+0x278/0x470 drivers/tty/n_hdlc.c:403 n_hdlc_tty_wakeup+0xa0/0xc0 drivers/tty/n_hdlc.c:479 tty_wakeup+0xd4/0x110 drivers/tty/tty_io.c:534 __start_tty drivers/tty/tty_io.c:806 [inline] __start_tty+0x116/0x150 drivers/tty/tty_io.c:799 n_tty_ioctl_helper+0x348/0x3a0 drivers/tty/tty_ioctl.c:917 n_hdlc_tty_ioctl+0x102/0x350 drivers/tty/n_hdlc.c:783 tty_ioctl+0x65d/0x1630 drivers/tty/tty_io.c:2678 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fd5805b4059 netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd57ef29168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd5806c6f60 RCX: 00007fd5805b4059 RDX: 0000000000000001 RSI: 000000000000540a RDI: 0000000000000003 RBP: 00007fd58060e08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca7d9d98f R14: 00007fd57ef29300 R15: 0000000000022000 overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: unrecognized mount option "lowardi" or missing value overlayfs: failed to resolve './file1': -2 overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "/file1" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: overlapping lowerdir path overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. overlayfs: unrecognized mount option "/file1" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "/file1" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: missing 'lowerdir' overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "lowerdlr=." or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value IPVS: length: 210 != 24 overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value IPVS: length: 210 != 24 overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: filesystem on './bus' not supported as upperdir device lo entered promiscuous mode overlayfs: filesystem on './bus' not supported as upperdir IPVS: length: 210 != 24 overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir IPVS: length: 210 != 24 overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir IPVS: length: 210 != 24 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir IPVS: length: 210 != 24 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir IPVS: length: 210 != 24 overlayfs: filesystem on './bus' not supported as upperdir IPVS: length: 210 != 24 IPVS: length: 210 != 24 IPVS: length: 210 != 24 IPVS: length: 210 != 24 overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value Y4`Ҙ: renamed from lo netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. overlayfs: unrecognized mount option "18446744073709551615" or missing value netlink: 'syz-executor.2': attribute type 8 has an invalid length. netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'. overlayfs: unrecognized mount option "18446744073709551615" or missing value netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'. overlayfs: unrecognized mount option "Upperdir=./bus" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 'syz-executor.2': attribute type 8 has an invalid length. netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'. overlayfs: unrecognized mount option "Upperdir=./bus" or missing value overlayfs: unrecognized mount option "Upperdir=./bus" or missing value netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'. overlayfs: unrecognized mount option "18446744073709551615" or missing value netlink: 28 bytes leftover after parsing attributes in process `syz-executor.5'. overlayfs: failed to resolve './file1': -2 overlayfs: unrecognized mount option "18446744073709551615" or missing value netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. overlayfs: unrecognized mount option "18446744073709551615" or missing value audit: type=1800 audit(1645794465.042:12760): pid=6860 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=13865 res=0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. loop_set_status: loop7 () has still dirty pages (nrpages=33) print_req_error: I/O error, dev loop7, sector 128 Buffer I/O error on dev loop7, logical block 16, lost async page write print_req_error: I/O error, dev loop7, sector 136 Buffer I/O error on dev loop7, logical block 17, lost async page write audit: type=1800 audit(1645794465.422:12761): pid=6902 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=14319 res=0 overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value audit: type=1800 audit(1645794465.812:12762): pid=6956 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="file0" dev="sda1" ino=13920 res=0 overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value overlayfs: unrecognized mount option "18446744073709551615" or missing value IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 overlayfs: unrecognized mount option "18446744073709551615" or missing value nbd: couldn't find device at index -1577385984 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 40 00 nopl 0x0(%rax) 10: 48 89 f8 mov %rdi,%rax 13: 48 89 f7 mov %rsi,%rdi 16: 48 89 d6 mov %rdx,%rsi 19: 48 89 ca mov %rcx,%rdx 1c: 4d 89 c2 mov %r8,%r10 1f: 4d 89 c8 mov %r9,%r8 22: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 27: 0f 05 syscall * 29: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 2f: 73 01 jae 0x32 31: c3 retq 32: 48 c7 c1 b8 ff ff ff mov $0xffffffffffffffb8,%rcx 39: f7 d8 neg %eax 3b: 64 89 01 mov %eax,%fs:(%rcx) 3e: 48 rex.W