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SubjectRe: general protection fault in syscall_return_slowpath
From
Hello,

syzbot tried to test the proposed patch but build/boot failed:

int.o
CC net/nfc/hci/llc.o
CC fs/super.o
CC fs/char_dev.o
CC fs/f2fs/gc.o
CC net/netfilter/nf_flow_table_core.o
CC net/vmw_vsock/af_vsock.o
CC net/vmw_vsock/af_vsock_tap.o
CC net/mac80211/tx.o
CC fs/stat.o
CC fs/gfs2/export.o
CC fs/gfs2/file.o
CC fs/f2fs/data.o
CC net/openvswitch/dp_notify.o
CC lib/timerqueue.o
CC net/ceph/auth_none.o
CC lib/vsprintf.o
CC net/nfc/hci/llc_nop.o
CC net/openvswitch/flow.o
CC fs/gfs2/ops_fstype.o
CC fs/btrfs/transaction.o
CC fs/btrfs/inode.o
CC fs/gfs2/inode.o
CC net/ceph/crypto.o
CC lib/win_minmax.o
CC net/nfc/hci/llc_shdlc.o
CC net/ceph/armor.o
CC net/ceph/auth_x.o
CC net/netfilter/nf_flow_table_ip.o
CC fs/f2fs/node.o
CC net/ceph/ceph_hash.o
CC net/ceph/ceph_strings.o
CC net/ceph/pagevec.o
CC drivers/gpu/drm/i915/display/intel_sprite.o
CC fs/btrfs/file.o
CC net/mac80211/key.o
CC net/openvswitch/flow_netlink.o
CC fs/ceph/caps.o
CC fs/gfs2/quota.o
CC fs/ceph/snap.o
CC net/mac80211/util.o
CC net/ceph/snapshot.o
CC net/ceph/string_table.o
CC drivers/gpu/drm/i915/display/intel_tc.o
CC drivers/gpu/drm/i915/display/intel_vga.o
CC drivers/gpu/drm/i915/display/intel_acpi.o
CC fs/xfs/libxfs/xfs_dir2_data.o
CC fs/f2fs/segment.o
CC drivers/gpu/drm/i915/display/intel_opregion.o
CC fs/gfs2/recovery.o
CC fs/gfs2/rgrp.o
CC net/vmw_vsock/vsock_addr.o
CC fs/exec.o
CC lib/xarray.o
CC net/mac80211/wme.o
CC net/netfilter/nf_flow_table_offload.o
CC net/mac80211/chan.o
CC fs/gfs2/sys.o
CC fs/gfs2/super.o
CC net/openvswitch/flow_table.o
AR fs/erofs/built-in.a
CC net/openvswitch/meter.o
AR net/nfc/hci/built-in.a
CC fs/pipe.o
CC fs/gfs2/trans.o
CC net/mac80211/trace.o
CC net/nfc/af_nfc.o
CC fs/ceph/xattr.o
CC net/openvswitch/vport.o
CC fs/namei.o
CC fs/fcntl.o
CC fs/gfs2/util.o
CC net/openvswitch/vport-internal_dev.o
CC fs/xfs/libxfs/xfs_dir2_leaf.o
CC drivers/gpu/drm/i915/display/intel_fbdev.o
CC fs/xfs/libxfs/xfs_dir2_node.o
CC drivers/gpu/drm/i915/display/dvo_ch7xxx.o
CC drivers/gpu/drm/i915/display/dvo_ch7017.o
CC net/netfilter/nf_flow_table_inet.o
CC drivers/gpu/drm/i915/display/dvo_ivch.o
CC net/openvswitch/vport-netdev.o
AR net/batman-adv/built-in.a
CC net/vmw_vsock/diag.o
CC net/vmw_vsock/virtio_transport.o
CC fs/gfs2/lock_dlm.o
CC net/mpls/mpls_gso.o
CC fs/ceph/quota.o
AR net/ceph/built-in.a
CC fs/xfs/libxfs/xfs_dir2_sf.o
CC net/nfc/rawsock.o
CC net/openvswitch/conntrack.o
CC fs/xfs/libxfs/xfs_dquot_buf.o
CC net/nfc/llcp_core.o
CC net/netfilter/x_tables.o
CC net/netfilter/xt_tcpudp.o
CC net/nsh/nsh.o
CC net/mac80211/mlme.o
CC fs/f2fs/recovery.o
CC net/hsr/hsr_main.o
CC net/hsr/hsr_device.o
CC net/hsr/hsr_framereg.o
CC net/hsr/hsr_netlink.o
CC fs/f2fs/shrinker.o
CC net/mac80211/tdls.o
CC net/openvswitch/vport-geneve.o
CC net/openvswitch/vport-vxlan.o
CC drivers/gpu/drm/i915/display/dvo_ns2501.o
CC net/hsr/hsr_slave.o
CC net/netfilter/xt_mark.o
GEN lib/crc32table.h
CC net/openvswitch/vport-gre.o
CC net/mpls/af_mpls.o
CC fs/ceph/io.o
GEN lib/crc64table.h
CC fs/f2fs/extent_cache.o
CC fs/f2fs/sysfs.o
CC net/netfilter/xt_connmark.o
CC fs/ceph/mds_client.o
CC fs/ceph/strings.o
CC fs/ceph/mdsmap.o
CC fs/xfs/libxfs/xfs_ialloc.o
CC net/vmw_vsock/virtio_transport_common.o
CC fs/xfs/libxfs/xfs_ialloc_btree.o
CC fs/xfs/libxfs/xfs_iext_tree.o
CC fs/btrfs/tree-defrag.o
CC net/switchdev/switchdev.o
CC net/nfc/llcp_commands.o
CC net/nfc/llcp_sock.o
CC net/nfc/digital_core.o
CC net/nfc/digital_technology.o
CC net/nfc/digital_dep.o
CC fs/xfs/libxfs/xfs_inode_fork.o
CC fs/xfs/libxfs/xfs_inode_buf.o
AR fs/gfs2/built-in.a
CC fs/f2fs/debug.o
CC fs/btrfs/extent_map.o
CC net/hsr/hsr_forward.o
CC net/netfilter/xt_set.o
CC net/netfilter/xt_nat.o
CC net/mac80211/ocb.o
CC net/mac80211/airtime.o
CC fs/ceph/ceph_frag.o
CC lib/oid_registry.o
AR lib/lib.a
AR net/nsh/built-in.a
CC fs/xfs/libxfs/xfs_log_rlimit.o
CC drivers/gpu/drm/i915/display/dvo_sil164.o
CC fs/ceph/debugfs.o
CC net/hsr/hsr_debugfs.o
CC net/mac80211/led.o
CC net/mac80211/debugfs.o
CC fs/ceph/cache.o
CC fs/ceph/util.o
CC fs/f2fs/xattr.o
CC fs/btrfs/sysfs.o
CC fs/ceph/acl.o
CC fs/btrfs/struct-funcs.o
CC net/netfilter/xt_AUDIT.o
CC fs/f2fs/acl.o
CC net/netfilter/xt_CHECKSUM.o
CC fs/ioctl.o
CC net/netfilter/xt_CLASSIFY.o
CC net/netfilter/xt_CONNSECMARK.o
CC net/mac80211/debugfs_sta.o
CC fs/readdir.o
CC lib/crc32.o
AR net/openvswitch/built-in.a
CC fs/btrfs/xattr.o
CC fs/xfs/libxfs/xfs_ag_resv.o
CC fs/btrfs/ordered-data.o
CC net/mac80211/debugfs_netdev.o
CC net/mac80211/debugfs_key.o
CC fs/xfs/libxfs/xfs_rmap.o
CC fs/xfs/libxfs/xfs_rmap_btree.o
AR fs/ocfs2/built-in.a
CC net/mac80211/mesh.o
CC net/vmw_vsock/vsock_loopback.o
CC fs/xfs/libxfs/xfs_refcount.o
AR net/hsr/built-in.a
CC net/mpls/mpls_iptunnel.o
CC fs/f2fs/verity.o
CC net/mac80211/mesh_pathtbl.o
CC fs/f2fs/compress.o
AR net/nfc/built-in.a
CC net/netfilter/xt_CT.o
CC net/l3mdev/l3mdev.o
EXPORTS lib/lib-ksyms.o
CC lib/crc64.o
CC net/mac80211/mesh_plink.o
CC net/mac80211/mesh_hwmp.o
CC drivers/gpu/drm/i915/display/dvo_tfp410.o
CC fs/xfs/libxfs/xfs_refcount_btree.o
CC net/netfilter/xt_DSCP.o
CC net/mac80211/mesh_sync.o
CC fs/select.o
CC net/mac80211/mesh_ps.o
CC net/netfilter/xt_HL.o
CC fs/xfs/libxfs/xfs_sb.o
AR net/switchdev/built-in.a
CC fs/xfs/libxfs/xfs_symlink_remote.o
CC fs/btrfs/extent_io.o
CC fs/btrfs/volumes.o
CC fs/btrfs/async-thread.o
CC fs/btrfs/ioctl.o
CC net/netfilter/xt_HMARK.o
CC net/mac80211/pm.o
CC fs/xfs/libxfs/xfs_trans_inode.o
CC fs/xfs/libxfs/xfs_trans_resv.o
CC fs/xfs/libxfs/xfs_types.o
CC fs/xfs/libxfs/xfs_rtbitmap.o
AR lib/built-in.a
CC net/netfilter/xt_LED.o
CC net/netfilter/xt_LOG.o
CC fs/btrfs/locking.o
CC fs/xfs/xfs_aops.o
CC fs/inode.o
CC fs/dcache.o
CC fs/attr.o
AR net/vmw_vsock/built-in.a
CC fs/bad_inode.o
CC net/mac80211/rc80211_minstrel.o
CC fs/file.o
CC fs/xfs/xfs_attr_inactive.o
CC fs/filesystems.o
CC fs/namespace.o
CC fs/seq_file.o
CC drivers/gpu/drm/i915/display/icl_dsi.o
CC drivers/gpu/drm/i915/display/intel_crt.o
CC drivers/gpu/drm/i915/display/intel_ddi.o
AR net/mpls/built-in.a
CC net/ncsi/ncsi-cmd.o
CC net/xdp/xsk.o
CC net/netfilter/xt_NETMAP.o
AR net/l3mdev/built-in.a
CC net/mptcp/protocol.o
CC fs/xfs/xfs_attr_list.o
AR fs/ceph/built-in.a
CC net/netfilter/xt_NFLOG.o
CC net/ncsi/ncsi-rsp.o
CC net/mptcp/subflow.o
CC net/mptcp/options.o
CC net/netfilter/xt_NFQUEUE.o
CC drivers/gpu/drm/i915/display/intel_dp.o
CC net/mac80211/rc80211_minstrel_ht.o
CC drivers/gpu/drm/i915/display/intel_dp_aux_backlight.o
CC net/mac80211/rc80211_minstrel_debugfs.o
CC fs/xattr.o
CC drivers/gpu/drm/i915/display/intel_dp_link_training.o
CC net/netfilter/xt_RATEEST.o
CC fs/xfs/xfs_bmap_util.o
CC fs/btrfs/orphan.o
CC fs/xfs/xfs_bio_io.o
CC fs/btrfs/export.o
CC net/mac80211/rc80211_minstrel_ht_debugfs.o
CC fs/xfs/xfs_buf.o
CC fs/xfs/xfs_dir2_readdir.o
CC fs/xfs/xfs_discard.o
CC drivers/gpu/drm/i915/display/intel_dp_mst.o
CC fs/btrfs/tree-log.o
CC fs/btrfs/free-space-cache.o
CC fs/xfs/xfs_error.o
CC fs/btrfs/zlib.o
CC fs/xfs/xfs_export.o
AR fs/f2fs/built-in.a
CC fs/btrfs/lzo.o
CC net/socket.o
CC net/compat.o
CC fs/libfs.o
CC fs/xfs/xfs_extent_busy.o
CC fs/xfs/xfs_file.o
CC fs/fs-writeback.o
CC fs/pnode.o
CC fs/xfs/xfs_filestream.o
CC net/netfilter/xt_REDIRECT.o
CC fs/xfs/xfs_fsmap.o
CC net/ncsi/ncsi-aen.o
CC net/xdp/xdp_umem.o
CC net/xdp/xsk_queue.o
CC net/xdp/xsk_diag.o
CC net/netfilter/xt_MASQUERADE.o
CC drivers/gpu/drm/i915/display/intel_dsi.o
CC net/sysctl_net.o
CC net/netfilter/xt_SECMARK.o
CC drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.o
CC fs/xfs/xfs_fsops.o
CC fs/xfs/xfs_globals.o
CC fs/xfs/xfs_health.o
CC fs/xfs/xfs_icache.o
CC fs/btrfs/zstd.o
CC net/mptcp/token.o
CC net/mptcp/crypto.o
CC net/ncsi/ncsi-manage.o
CC fs/xfs/xfs_ioctl.o
CC fs/xfs/xfs_iomap.o
CC drivers/gpu/drm/i915/display/intel_dsi_vbt.o
CC fs/btrfs/compression.o
CC net/netfilter/xt_TPROXY.o
CC net/netfilter/xt_TCPMSS.o
CC net/ncsi/ncsi-netlink.o
CC fs/btrfs/delayed-ref.o
CC drivers/gpu/drm/i915/display/intel_dvo.o
CC fs/btrfs/relocation.o
CC fs/btrfs/delayed-inode.o
CC drivers/gpu/drm/i915/display/intel_gmbus.o
CC net/mptcp/ctrl.o
CC drivers/gpu/drm/i915/display/intel_hdmi.o
CC fs/xfs/xfs_iops.o
CC fs/splice.o
CC drivers/gpu/drm/i915/display/intel_lspcon.o
CC fs/xfs/xfs_inode.o
CC fs/xfs/xfs_itable.o
CC fs/btrfs/scrub.o
CC fs/btrfs/reada.o
CC fs/btrfs/backref.o
CC fs/sync.o
CC net/netfilter/xt_TCPOPTSTRIP.o
CC fs/utimes.o
CC drivers/gpu/drm/i915/display/intel_lvds.o
CC fs/btrfs/ulist.o
CC fs/xfs/xfs_iwalk.o
CC fs/xfs/xfs_message.o
CC fs/xfs/xfs_mount.o
CC fs/btrfs/qgroup.o
CC fs/btrfs/send.o
CC fs/d_path.o
CC fs/xfs/xfs_mru_cache.o
CC net/netfilter/xt_IDLETIMER.o
CC net/netfilter/xt_TRACE.o
CC net/netfilter/xt_TEE.o
CC net/netfilter/xt_addrtype.o
CC net/netfilter/xt_bpf.o
CC fs/stack.o
CC fs/xfs/xfs_pwork.o
CC fs/fs_struct.o
CC fs/btrfs/dev-replace.o
AR net/xdp/built-in.a
CC fs/btrfs/raid56.o
CC fs/btrfs/uuid-tree.o
CC fs/statfs.o
CC net/netfilter/xt_cluster.o
CC fs/xfs/xfs_reflink.o
AR net/mptcp/built-in.a
CC fs/xfs/xfs_stats.o
AR net/mac80211/built-in.a
CC fs/xfs/xfs_super.o
CC fs/fs_pin.o
CC net/netfilter/xt_comment.o
CC net/netfilter/xt_connbytes.o
CC net/netfilter/xt_connlabel.o
CC net/netfilter/xt_connlimit.o
CC fs/xfs/xfs_symlink.o
CC net/netfilter/xt_conntrack.o
CC fs/xfs/xfs_sysfs.o
CC fs/xfs/xfs_trans.o
CC fs/nsfs.o
CC fs/btrfs/props.o
CC fs/btrfs/free-space-tree.o
CC net/netfilter/xt_cpu.o
CC net/netfilter/xt_dccp.o
CC fs/btrfs/tree-checker.o
CC fs/fs_types.o
CC net/netfilter/xt_devgroup.o
CC fs/fs_context.o
CC fs/xfs/xfs_xattr.o
CC fs/btrfs/space-info.o
CC fs/fsopen.o
CC fs/fs_parser.o
CC drivers/gpu/drm/i915/display/intel_panel.o
CC drivers/gpu/drm/i915/display/intel_sdvo.o
CC fs/xfs/kmem.o
CC fs/btrfs/block-rsv.o
CC fs/xfs/xfs_log.o
CC fs/xfs/xfs_log_cil.o
CC fs/xfs/xfs_bmap_item.o
CC fs/btrfs/delalloc-space.o
CC fs/btrfs/block-group.o
CC drivers/gpu/drm/i915/display/intel_tv.o
AR net/ncsi/built-in.a
CC net/netfilter/xt_dscp.o
CC fs/buffer.o
CC fs/xfs/xfs_buf_item.o
CC net/netfilter/xt_ecn.o
CC fs/btrfs/discard.o
CC fs/block_dev.o
CC drivers/gpu/drm/i915/display/intel_vdsc.o
CC drivers/gpu/drm/i915/display/vlv_dsi.o
CC fs/xfs/xfs_extfree_item.o
CC fs/xfs/xfs_icreate_item.o
CC fs/btrfs/acl.o
CC net/netfilter/xt_esp.o
CC net/netfilter/xt_hashlimit.o
CC fs/xfs/xfs_inode_item.o
CC fs/xfs/xfs_refcount_item.o
CC fs/xfs/xfs_rmap_item.o
CC fs/xfs/xfs_log_recover.o
CC drivers/gpu/drm/i915/display/vlv_dsi_pll.o
CC drivers/gpu/drm/i915/oa/i915_oa_hsw.o
CC fs/xfs/xfs_trans_ail.o
CC fs/xfs/xfs_trans_buf.o
CC fs/direct-io.o
CC fs/mpage.o
CC fs/proc_namespace.o
CC fs/eventpoll.o
CC fs/anon_inodes.o
CC fs/xfs/xfs_dquot.o
CC fs/signalfd.o
CC fs/timerfd.o
CC net/netfilter/xt_helper.o
CC fs/eventfd.o
CC net/netfilter/xt_hl.o
CC drivers/gpu/drm/i915/oa/i915_oa_bdw.o
CC drivers/gpu/drm/i915/oa/i915_oa_chv.o
CC drivers/gpu/drm/i915/oa/i915_oa_sklgt2.o
CC drivers/gpu/drm/i915/oa/i915_oa_sklgt3.o
CC drivers/gpu/drm/i915/oa/i915_oa_sklgt4.o
CC net/netfilter/xt_ipcomp.o
CC fs/xfs/xfs_dquot_item.o
CC drivers/gpu/drm/i915/oa/i915_oa_bxt.o
CC fs/xfs/xfs_trans_dquot.o
CC drivers/gpu/drm/i915/oa/i915_oa_kblgt3.o
CC drivers/gpu/drm/i915/oa/i915_oa_kblgt2.o
CC net/netfilter/xt_iprange.o
CC drivers/gpu/drm/i915/oa/i915_oa_glk.o
CC fs/xfs/xfs_qm_syscalls.o
CC fs/userfaultfd.o
CC fs/aio.o
CC fs/io_uring.o
CC net/netfilter/xt_ipvs.o
CC net/netfilter/xt_l2tp.o
CC net/netfilter/xt_length.o
CC fs/xfs/xfs_qm_bhv.o
CC net/netfilter/xt_limit.o
CC fs/xfs/xfs_qm.o
CC drivers/gpu/drm/i915/oa/i915_oa_cflgt2.o
CC fs/io-wq.o
CC net/netfilter/xt_mac.o
CC drivers/gpu/drm/i915/oa/i915_oa_cflgt3.o
CC drivers/gpu/drm/i915/oa/i915_oa_cnl.o
CC net/netfilter/xt_multiport.o
CC fs/xfs/xfs_quotaops.o
CC net/netfilter/xt_osf.o
CC net/netfilter/xt_nfacct.o
CC fs/xfs/xfs_rtalloc.o
CC fs/xfs/xfs_acl.o
CC drivers/gpu/drm/i915/oa/i915_oa_icl.o
CC net/netfilter/xt_owner.o
CC fs/dax.o
CC fs/locks.o
CC fs/compat.o
CC fs/binfmt_misc.o
CC drivers/gpu/drm/i915/oa/i915_oa_tgl.o
CC net/netfilter/xt_physdev.o
CC net/netfilter/xt_cgroup.o
CC net/netfilter/xt_pkttype.o
CC net/netfilter/xt_quota.o
CC net/netfilter/xt_policy.o
CC fs/binfmt_script.o
CC net/netfilter/xt_rateest.o
CC fs/xfs/xfs_sysctl.o
CC net/netfilter/xt_realm.o
CC drivers/gpu/drm/i915/i915_perf.o
CC drivers/gpu/drm/i915/i915_gpu_error.o
CC fs/xfs/xfs_ioctl32.o
CC fs/binfmt_elf.o
CC net/netfilter/xt_recent.o
CC net/netfilter/xt_sctp.o
CC net/netfilter/xt_socket.o
CC net/netfilter/xt_state.o
CC fs/xfs/xfs_pnfs.o
CC drivers/gpu/drm/i915/i915_vgpu.o
CC fs/compat_binfmt_elf.o
CC fs/posix_acl.o
CC fs/mbcache.o
CC fs/coredump.o
CC net/netfilter/xt_statistic.o
CC fs/drop_caches.o
CC net/netfilter/xt_string.o
CC fs/fhandle.o
CC net/netfilter/xt_tcpmss.o
CC fs/dcookies.o
CC net/netfilter/xt_time.o
CC net/netfilter/xt_u32.o
AR net/netfilter/built-in.a
AR net/built-in.a
AR drivers/gpu/drm/i915/built-in.a
AR drivers/gpu/drm/built-in.a
AR drivers/gpu/built-in.a
Makefile:1681: recipe for target 'drivers' failed
make: *** [drivers] Error 2
make: *** Waiting for unfinished jobs....
AR fs/btrfs/built-in.a
AR fs/xfs/built-in.a
AR fs/built-in.a


Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=1771d70de00000


Tested on:

commit: 63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub..
git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.git
dashboard link: https://syzkaller.appspot.com/bug?extid=cd66e43794b178bb5cd6
compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
patch: https://syzkaller.appspot.com/x/patch.diff?x=1161a0b1e00000

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