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From: syzbot <syzbot+cd66e43794b178bb5cd6@syzkaller.appspotmail.com> To: bp@alien8.de, hpa@zytor.com, jannh@google.com, linux-kernel@vger.kernel.org, luto@kernel.org, mingo@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Subject: Re: general protection fault in syscall_return_slowpath Date: Sun, 08 Mar 2020 11:00:03 -0700 [thread overview] Message-ID: <000000000000edc57c05a05ba7cb@google.com> (raw) In-Reply-To: <CAG48ez2TnPppWonr8K3POyg3hGosgNXU2-ZMjyaYN4tLYRiJiQ@mail.gmail.com> Hello, syzbot tried to test the proposed patch but build/boot failed: e.o CC fs/xfs/libxfs/xfs_refcount.o CC fs/ceph/cache.o CC fs/ocfs2/sysfile.o CC fs/nfs/nfs4trace.o CC fs/btrfs/extent_io.o CC fs/btrfs/volumes.o CC net/mac80211/mesh_sync.o CC drivers/gpu/drm/drm_auth.o CC fs/gfs2/recovery.o CC fs/gfs2/rgrp.o CC fs/btrfs/async-thread.o CC drivers/gpu/drm/i915/gem/i915_gem_region.o CC net/netfilter/xt_nat.o CC fs/ocfs2/uptodate.o AR net/vmw_vsock/built-in.a CC fs/ocfs2/quota_local.o CC fs/dcache.o CC fs/inode.o CC fs/afs/volume.o CC fs/afs/write.o CC fs/ceph/acl.o CC fs/btrfs/ioctl.o CC fs/btrfs/locking.o CC fs/afs/xattr.o CC net/netfilter/xt_AUDIT.o CC fs/ocfs2/quota_global.o CC fs/btrfs/orphan.o CC fs/btrfs/export.o CC net/netfilter/xt_CHECKSUM.o CC fs/attr.o CC net/netfilter/xt_CLASSIFY.o CC drivers/gpu/drm/drm_cache.o CC fs/bad_inode.o CC fs/nfs/nfs4sysctl.o CC drivers/gpu/drm/drm_file.o CC fs/file.o CC drivers/gpu/drm/i915/gem/i915_gem_shmem.o CC drivers/gpu/drm/i915/gem/i915_gem_shrinker.o CC drivers/gpu/drm/i915/gem/i915_gem_stolen.o CC fs/gfs2/super.o CC drivers/gpu/drm/i915/gem/i915_gem_throttle.o CC fs/btrfs/tree-log.o CC net/netfilter/xt_CONNSECMARK.o CC fs/f2fs/xattr.o CC fs/ocfs2/xattr.o CC net/netfilter/xt_CT.o CC net/mac80211/mesh_ps.o CC fs/f2fs/acl.o CC fs/filesystems.o AR fs/erofs/built-in.a CC fs/f2fs/verity.o CC drivers/gpu/drm/drm_gem.o CC fs/ocfs2/acl.o CC fs/gfs2/sys.o CC drivers/gpu/drm/drm_ioctl.o CC fs/ocfs2/filecheck.o CC fs/btrfs/free-space-cache.o CC fs/namespace.o CC drivers/gpu/drm/i915/gem/i915_gem_tiling.o CC drivers/gpu/drm/drm_irq.o CC fs/ocfs2/stack_o2cb.o CC fs/ocfs2/stackglue.o AR fs/ceph/built-in.a CC drivers/gpu/drm/drm_memory.o CC fs/btrfs/zlib.o CC fs/btrfs/lzo.o CC fs/nfs/pnfs.o CC fs/gfs2/trans.o CC fs/gfs2/util.o CC fs/ocfs2/stack_user.o CC fs/xfs/libxfs/xfs_refcount_btree.o CC fs/xfs/libxfs/xfs_sb.o CC net/netfilter/xt_DSCP.o CC net/netfilter/xt_HL.o CC drivers/gpu/drm/drm_drv.o CC drivers/gpu/drm/drm_sysfs.o CC fs/afs/yfsclient.o CC fs/btrfs/zstd.o CC fs/afs/proc.o CC fs/f2fs/compress.o CC fs/seq_file.o CC fs/xattr.o CC net/netfilter/xt_HMARK.o CC net/mac80211/pm.o CC drivers/gpu/drm/i915/gem/i915_gem_userptr.o CC net/mac80211/rc80211_minstrel.o CC net/mac80211/rc80211_minstrel_ht.o CC fs/gfs2/lock_dlm.o CC fs/nfs/pnfs_dev.o CC fs/nfs/pnfs_nfs.o CC fs/nfs/nfs42proc.o CC fs/btrfs/compression.o CC drivers/gpu/drm/i915/gem/i915_gem_wait.o CC drivers/gpu/drm/i915/gem/i915_gemfs.o CC net/mac80211/rc80211_minstrel_debugfs.o CC net/mac80211/rc80211_minstrel_ht_debugfs.o CC fs/btrfs/delayed-ref.o CC drivers/gpu/drm/drm_hashtab.o CC fs/xfs/libxfs/xfs_symlink_remote.o CC fs/xfs/libxfs/xfs_trans_resv.o CC net/netfilter/xt_LED.o CC fs/xfs/libxfs/xfs_trans_inode.o CC fs/xfs/libxfs/xfs_types.o CC fs/btrfs/relocation.o CC net/netfilter/xt_LOG.o CC drivers/gpu/drm/drm_mm.o CC net/netfilter/xt_NETMAP.o CC net/netfilter/xt_NFLOG.o CC net/netfilter/xt_NFQUEUE.o CC net/netfilter/xt_RATEEST.o CC drivers/gpu/drm/i915/i915_active.o CC net/netfilter/xt_REDIRECT.o CC fs/btrfs/delayed-inode.o CC drivers/gpu/drm/i915/i915_buddy.o CC fs/xfs/libxfs/xfs_rtbitmap.o CC fs/btrfs/scrub.o CC fs/libfs.o CC drivers/gpu/drm/drm_crtc.o CC drivers/gpu/drm/drm_fourcc.o CC drivers/gpu/drm/drm_modes.o CC drivers/gpu/drm/drm_edid.o CC fs/fs-writeback.o CC drivers/gpu/drm/i915/i915_cmd_parser.o CC fs/pnode.o CC fs/splice.o CC drivers/gpu/drm/i915/i915_gem_evict.o CC fs/sync.o CC fs/utimes.o CC fs/d_path.o AR fs/gfs2/built-in.a CC fs/xfs/xfs_aops.o CC fs/xfs/xfs_attr_inactive.o CC drivers/gpu/drm/i915/i915_gem_fence_reg.o CC drivers/gpu/drm/i915/i915_gem_gtt.o CC drivers/gpu/drm/i915/i915_gem.o CC fs/btrfs/reada.o CC fs/btrfs/backref.o CC drivers/gpu/drm/drm_encoder_slave.o CC drivers/gpu/drm/drm_trace_points.o CC drivers/gpu/drm/drm_prime.o CC drivers/gpu/drm/drm_rect.o CC fs/stack.o CC net/netfilter/xt_MASQUERADE.o CC fs/xfs/xfs_attr_list.o CC drivers/gpu/drm/drm_vma_manager.o CC fs/xfs/xfs_bmap_util.o CC fs/fs_struct.o CC net/netfilter/xt_SECMARK.o CC fs/xfs/xfs_bio_io.o CC drivers/gpu/drm/i915/i915_globals.o CC drivers/gpu/drm/i915/i915_query.o CC fs/xfs/xfs_buf.o CC fs/xfs/xfs_dir2_readdir.o CC drivers/gpu/drm/i915/i915_request.o CC drivers/gpu/drm/i915/i915_scheduler.o CC drivers/gpu/drm/drm_flip_work.o CC net/netfilter/xt_TPROXY.o CC fs/statfs.o CC fs/btrfs/ulist.o CC drivers/gpu/drm/drm_modeset_lock.o CC drivers/gpu/drm/drm_atomic.o CC drivers/gpu/drm/drm_bridge.o CC drivers/gpu/drm/drm_framebuffer.o AR fs/afs/built-in.a CC drivers/gpu/drm/drm_connector.o CC drivers/gpu/drm/drm_blend.o CC fs/xfs/xfs_discard.o CC fs/fs_pin.o CC drivers/gpu/drm/drm_encoder.o CC fs/nsfs.o CC drivers/gpu/drm/drm_mode_object.o CC fs/fs_types.o CC net/netfilter/xt_TCPMSS.o CC fs/xfs/xfs_error.o AR fs/f2fs/built-in.a CC drivers/gpu/drm/drm_property.o CC drivers/gpu/drm/i915/i915_trace_points.o CC net/netfilter/xt_TCPOPTSTRIP.o CC drivers/gpu/drm/i915/i915_vma.o CC fs/btrfs/qgroup.o CC fs/xfs/xfs_export.o CC fs/xfs/xfs_extent_busy.o CC drivers/gpu/drm/drm_plane.o CC fs/fs_context.o CC fs/fs_parser.o CC fs/xfs/xfs_file.o CC fs/btrfs/send.o CC drivers/gpu/drm/drm_color_mgmt.o CC fs/btrfs/dev-replace.o CC drivers/gpu/drm/i915/intel_region_lmem.o CC fs/buffer.o CC fs/fsopen.o CC fs/xfs/xfs_filestream.o CC fs/xfs/xfs_fsmap.o CC fs/block_dev.o CC drivers/gpu/drm/i915/intel_wopcm.o CC fs/btrfs/uuid-tree.o CC fs/btrfs/raid56.o CC drivers/gpu/drm/drm_print.o CC fs/xfs/xfs_fsops.o CC drivers/gpu/drm/i915/gt/uc/intel_uc.o CC net/netfilter/xt_TEE.o CC net/netfilter/xt_TRACE.o CC net/netfilter/xt_IDLETIMER.o CC net/netfilter/xt_addrtype.o CC drivers/gpu/drm/drm_dumb_buffers.o CC fs/direct-io.o CC net/netfilter/xt_bpf.o CC net/netfilter/xt_cluster.o CC drivers/gpu/drm/drm_mode_config.o CC fs/btrfs/props.o CC fs/xfs/xfs_globals.o CC drivers/gpu/drm/drm_vblank.o AR net/mac80211/built-in.a CC fs/xfs/xfs_health.o CC drivers/gpu/drm/drm_syncobj.o CC fs/mpage.o CC fs/xfs/xfs_icache.o CC drivers/gpu/drm/drm_lease.o CC fs/proc_namespace.o CC fs/btrfs/free-space-tree.o CC drivers/gpu/drm/i915/gt/uc/intel_uc_fw.o CC fs/eventpoll.o CC fs/anon_inodes.o CC fs/signalfd.o CC fs/btrfs/tree-checker.o CC fs/btrfs/space-info.o CC fs/xfs/xfs_ioctl.o CC fs/xfs/xfs_iomap.o CC drivers/gpu/drm/drm_writeback.o CC fs/btrfs/block-rsv.o CC fs/xfs/xfs_iops.o CC drivers/gpu/drm/drm_client.o CC fs/xfs/xfs_inode.o CC drivers/gpu/drm/drm_client_modeset.o CC fs/xfs/xfs_itable.o CC fs/btrfs/delalloc-space.o CC drivers/gpu/drm/drm_atomic_uapi.o CC net/netfilter/xt_comment.o CC drivers/gpu/drm/drm_hdcp.o CC net/netfilter/xt_connbytes.o CC fs/xfs/xfs_iwalk.o AR fs/nfs/built-in.a CC drivers/gpu/drm/i915/gt/uc/intel_guc.o CC drivers/gpu/drm/drm_ioc32.o CC fs/btrfs/block-group.o CC net/netfilter/xt_connlabel.o CC fs/timerfd.o CC net/netfilter/xt_connlimit.o CC fs/xfs/xfs_message.o CC fs/btrfs/discard.o CC fs/btrfs/acl.o CC drivers/gpu/drm/drm_gem_shmem_helper.o CC fs/xfs/xfs_mount.o CC fs/eventfd.o CC drivers/gpu/drm/drm_panel.o CC net/netfilter/xt_conntrack.o CC drivers/gpu/drm/drm_agpsupport.o CC fs/userfaultfd.o CC net/netfilter/xt_cpu.o CC net/netfilter/xt_devgroup.o CC net/netfilter/xt_dccp.o CC drivers/gpu/drm/i915/gt/uc/intel_guc_ads.o CC net/netfilter/xt_dscp.o CC fs/aio.o CC drivers/gpu/drm/i915/gt/uc/intel_guc_ct.o CC fs/xfs/xfs_mru_cache.o CC fs/io_uring.o CC drivers/gpu/drm/drm_pci.o CC drivers/gpu/drm/drm_debugfs.o CC net/netfilter/xt_ecn.o CC drivers/gpu/drm/i915/gt/uc/intel_guc_fw.o CC fs/io-wq.o CC drivers/gpu/drm/drm_debugfs_crc.o CC fs/dax.o CC fs/xfs/xfs_pwork.o CC fs/xfs/xfs_reflink.o CC drivers/gpu/drm/drm_mipi_dsi.o CC fs/locks.o CC fs/xfs/xfs_stats.o CC net/netfilter/xt_esp.o CC fs/xfs/xfs_super.o CC net/netfilter/xt_hashlimit.o CC fs/compat.o CC net/netfilter/xt_helper.o CC fs/binfmt_misc.o CC drivers/gpu/drm/drm_panel_orientation_quirks.o CC drivers/gpu/drm/i915/gt/uc/intel_guc_log.o CC drivers/gpu/drm/i915/gt/uc/intel_guc_submission.o CC net/netfilter/xt_hl.o CC fs/binfmt_script.o CC net/netfilter/xt_ipcomp.o CC net/netfilter/xt_iprange.o CC fs/binfmt_elf.o CC fs/compat_binfmt_elf.o CC net/netfilter/xt_ipvs.o CC net/netfilter/xt_l2tp.o CC fs/mbcache.o CC net/netfilter/xt_length.o CC net/netfilter/xt_limit.o CC net/netfilter/xt_mac.o CC drivers/gpu/drm/i915/gt/uc/intel_huc.o CC fs/posix_acl.o CC fs/drop_caches.o CC fs/coredump.o CC drivers/gpu/drm/i915/gt/uc/intel_huc_fw.o CC fs/xfs/xfs_symlink.o CC fs/fhandle.o CC drivers/gpu/drm/i915/display/intel_atomic.o CC fs/dcookies.o CC fs/xfs/xfs_sysfs.o CC drivers/gpu/drm/i915/display/intel_atomic_plane.o CC fs/xfs/xfs_trans.o CC fs/xfs/xfs_xattr.o CC net/netfilter/xt_multiport.o CC net/netfilter/xt_nfacct.o CC net/netfilter/xt_osf.o CC drivers/gpu/drm/i915/display/intel_audio.o CC net/netfilter/xt_owner.o CC net/netfilter/xt_cgroup.o CC fs/xfs/kmem.o CC drivers/gpu/drm/i915/display/intel_bios.o AR fs/ocfs2/built-in.a CC fs/xfs/xfs_log.o CC fs/xfs/xfs_log_cil.o CC drivers/gpu/drm/i915/display/intel_bw.o CC drivers/gpu/drm/i915/display/intel_cdclk.o CC drivers/gpu/drm/i915/display/intel_color.o CC fs/xfs/xfs_bmap_item.o CC drivers/gpu/drm/i915/display/intel_combo_phy.o CC fs/xfs/xfs_buf_item.o CC net/netfilter/xt_physdev.o CC drivers/gpu/drm/i915/display/intel_connector.o CC fs/xfs/xfs_extfree_item.o CC drivers/gpu/drm/i915/display/intel_display.o CC net/netfilter/xt_pkttype.o CC net/netfilter/xt_policy.o CC drivers/gpu/drm/i915/display/intel_display_power.o CC fs/xfs/xfs_icreate_item.o CC fs/xfs/xfs_inode_item.o CC drivers/gpu/drm/i915/display/intel_dpio_phy.o CC drivers/gpu/drm/i915/display/intel_dpll_mgr.o CC fs/xfs/xfs_refcount_item.o CC net/netfilter/xt_quota.o CC drivers/gpu/drm/i915/display/intel_dsb.o CC net/netfilter/xt_rateest.o CC net/netfilter/xt_realm.o CC drivers/gpu/drm/i915/display/intel_fbc.o CC drivers/gpu/drm/i915/display/intel_fifo_underrun.o CC fs/xfs/xfs_rmap_item.o CC fs/xfs/xfs_log_recover.o CC net/netfilter/xt_recent.o CC net/netfilter/xt_sctp.o CC fs/xfs/xfs_trans_ail.o CC net/netfilter/xt_socket.o CC drivers/gpu/drm/i915/display/intel_frontbuffer.o CC drivers/gpu/drm/i915/display/intel_hdcp.o CC fs/xfs/xfs_trans_buf.o CC net/netfilter/xt_state.o CC drivers/gpu/drm/i915/display/intel_hotplug.o CC net/netfilter/xt_statistic.o CC fs/xfs/xfs_dquot.o CC net/netfilter/xt_string.o CC net/netfilter/xt_tcpmss.o CC net/netfilter/xt_time.o CC fs/xfs/xfs_dquot_item.o CC fs/xfs/xfs_trans_dquot.o CC fs/xfs/xfs_qm_syscalls.o CC drivers/gpu/drm/i915/display/intel_lpe_audio.o CC net/netfilter/xt_u32.o CC fs/xfs/xfs_qm_bhv.o CC drivers/gpu/drm/i915/display/intel_overlay.o CC drivers/gpu/drm/i915/display/intel_psr.o CC fs/xfs/xfs_qm.o CC drivers/gpu/drm/i915/display/intel_quirks.o CC fs/xfs/xfs_quotaops.o CC fs/xfs/xfs_rtalloc.o CC fs/xfs/xfs_acl.o CC fs/xfs/xfs_sysctl.o CC fs/xfs/xfs_ioctl32.o CC fs/xfs/xfs_pnfs.o CC drivers/gpu/drm/i915/display/intel_sprite.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 drivers/gpu/drm/i915/display/intel_opregion.o CC drivers/gpu/drm/i915/display/intel_fbdev.o CC drivers/gpu/drm/i915/display/dvo_ch7017.o CC drivers/gpu/drm/i915/display/dvo_ch7xxx.o CC drivers/gpu/drm/i915/display/dvo_ivch.o CC drivers/gpu/drm/i915/display/dvo_ns2501.o CC drivers/gpu/drm/i915/display/dvo_sil164.o CC drivers/gpu/drm/i915/display/dvo_tfp410.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 CC drivers/gpu/drm/i915/display/intel_dp.o CC drivers/gpu/drm/i915/display/intel_dp_aux_backlight.o CC drivers/gpu/drm/i915/display/intel_dp_link_training.o CC drivers/gpu/drm/i915/display/intel_dsi.o CC drivers/gpu/drm/i915/display/intel_dp_mst.o CC drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.o CC drivers/gpu/drm/i915/display/intel_dsi_vbt.o CC drivers/gpu/drm/i915/display/intel_gmbus.o CC drivers/gpu/drm/i915/display/intel_dvo.o CC drivers/gpu/drm/i915/display/intel_hdmi.o CC drivers/gpu/drm/i915/display/intel_lspcon.o AR net/netfilter/built-in.a CC drivers/gpu/drm/i915/display/intel_lvds.o AR net/built-in.a CC drivers/gpu/drm/i915/display/intel_panel.o CC drivers/gpu/drm/i915/display/intel_sdvo.o CC drivers/gpu/drm/i915/display/intel_tv.o CC drivers/gpu/drm/i915/display/intel_vdsc.o CC drivers/gpu/drm/i915/display/vlv_dsi.o CC drivers/gpu/drm/i915/display/vlv_dsi_pll.o CC drivers/gpu/drm/i915/oa/i915_oa_hsw.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 drivers/gpu/drm/i915/oa/i915_oa_bxt.o CC drivers/gpu/drm/i915/oa/i915_oa_kblgt2.o CC drivers/gpu/drm/i915/oa/i915_oa_kblgt3.o CC drivers/gpu/drm/i915/oa/i915_oa_glk.o CC drivers/gpu/drm/i915/oa/i915_oa_cflgt2.o CC drivers/gpu/drm/i915/oa/i915_oa_cflgt3.o CC drivers/gpu/drm/i915/oa/i915_oa_icl.o CC drivers/gpu/drm/i915/oa/i915_oa_cnl.o CC drivers/gpu/drm/i915/oa/i915_oa_tgl.o AR fs/btrfs/built-in.a CC drivers/gpu/drm/i915/i915_gpu_error.o CC drivers/gpu/drm/i915/i915_perf.o CC drivers/gpu/drm/i915/i915_vgpu.o AR fs/xfs/built-in.a AR fs/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 Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=148c5f29e00000 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=1336c0a9e00000
next prev parent reply other threads:[~2020-03-08 18:00 UTC|newest] Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-03-08 7:45 general protection fault in syscall_return_slowpath syzbot 2020-03-08 16:13 ` Andy Lutomirski 2020-03-08 16:37 ` Borislav Petkov 2020-03-08 18:26 ` Thomas Gleixner 2020-03-09 8:34 ` Dmitry Vyukov 2020-03-09 18:26 ` Eric Biggers 2020-03-10 5:41 ` Dmitry Vyukov 2020-03-09 8:42 ` Dmitry Vyukov 2020-03-08 16:29 ` Andy Lutomirski 2020-03-12 13:34 ` Dan Carpenter 2020-03-08 17:20 ` Jann Horn 2020-03-08 18:00 ` syzbot [this message] 2020-03-08 18:35 ` Jann Horn 2020-03-08 21:57 ` syzbot 2020-03-09 8:20 ` Dmitry Vyukov 2020-03-10 6:15 ` Nathan Chancellor 2020-03-10 8:10 ` Dmitry Vyukov 2020-06-14 8:03 ` Dmitry Vyukov 2020-06-15 7:57 ` Jann Horn 2020-08-15 10:18 ` syzbot
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