bisecting fixing commit since b98aebd298246df37b472c52a2ee1023256d02e3
building syzkaller on 8c88c9c1c99c8cd8dabc951164c820b9c9f25114
testing commit b98aebd298246df37b472c52a2ee1023256d02e3 with gcc (GCC) 8.1.0
kernel signature: 6462db488c3d312d12f62c102f8184d29cb6cd49988b42ccc2090e16f370f40e
run #0: crashed: WARNING: kernel stack regs has bad 'bp' value
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
testing current HEAD 01364dad1d4577e27a57729d41053f661bb8a5b9
testing commit 01364dad1d4577e27a57729d41053f661bb8a5b9 with gcc (GCC) 8.1.0
kernel signature: d397804a88cdadc514ed9166bb18c560fde913778f7615d4294f82faf872663a
all runs: OK
# git bisect start 01364dad1d4577e27a57729d41053f661bb8a5b9 b98aebd298246df37b472c52a2ee1023256d02e3
Bisecting: 1600 revisions left to test after this (roughly 11 steps)
[6727fb4b064910866d4c292dd31838c0dca1752a] libata: Ensure ata_port probe has completed before detach
testing commit 6727fb4b064910866d4c292dd31838c0dca1752a with gcc (GCC) 8.1.0
kernel signature: 27f6f330dab8acb433ce5f127934aeaaae0f7f8202049949237eabe8c6da461c
all runs: OK
# git bisect bad 6727fb4b064910866d4c292dd31838c0dca1752a
Bisecting: 800 revisions left to test after this (roughly 10 steps)
[a87cd32dd7007739681b6677ba70bef00b88a872] net/mlxfw: Verify FSM error code translation doesn't exceed array size
testing commit a87cd32dd7007739681b6677ba70bef00b88a872 with gcc (GCC) 8.1.0
kernel signature: bc33c447e212cdae58174f8a3b77ce3d29277a4e50323eb34b24fff07b5730a8
run #0: crashed: WARNING: kernel stack regs has bad 'bp' value
run #1: crashed: WARNING: kernel stack regs has bad 'bp' value
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good a87cd32dd7007739681b6677ba70bef00b88a872
Bisecting: 400 revisions left to test after this (roughly 9 steps)
[12127f571caf8de22c76c867271281a26925b0be] crypto: stm32/hash - Fix hmac issue more than 256 bytes
testing commit 12127f571caf8de22c76c867271281a26925b0be with gcc (GCC) 8.1.0
kernel signature: f72591f5347cb5c41c590cc9be840fa11879f52ba8b07a0b20bda598a9b3a1de
run #0: crashed: WARNING: kernel stack regs has bad 'bp' value
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good 12127f571caf8de22c76c867271281a26925b0be
Bisecting: 200 revisions left to test after this (roughly 8 steps)
[ebf66f5a00c3483d17261af50bf5f913586ad16f] Btrfs: send, skip backreference walking for extents with many references
testing commit ebf66f5a00c3483d17261af50bf5f913586ad16f with gcc (GCC) 8.1.0
kernel signature: cbf4649f1a4fde7f6116c4adcea1aa855934ae04a2cfa7f8ea0ebec5cd7c454b
run #0: crashed: WARNING: kernel stack regs has bad 'bp' value
run #1: crashed: WARNING: kernel stack regs has bad 'bp' value
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good ebf66f5a00c3483d17261af50bf5f913586ad16f
Bisecting: 100 revisions left to test after this (roughly 7 steps)
[6ab2e14ba709957cf43ec9fa4b36dd4dfbbc65b2] PCI/PM: Always return devices to D0 when thawing
testing commit 6ab2e14ba709957cf43ec9fa4b36dd4dfbbc65b2 with gcc (GCC) 8.1.0
kernel signature: 14e414f5d4e4634d812d678cb02022fe2fa0d1e04c523f1c203c7e46abea6b67
run #0: crashed: WARNING: kernel stack frame pointer has bad value
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good 6ab2e14ba709957cf43ec9fa4b36dd4dfbbc65b2
Bisecting: 50 revisions left to test after this (roughly 6 steps)
[b88d9f8b8ba5722ab4aef7d01c2a5a66b5414b83] libertas: fix a potential NULL pointer dereference
testing commit b88d9f8b8ba5722ab4aef7d01c2a5a66b5414b83 with gcc (GCC) 8.1.0
kernel signature: 01679543155e8a84310544265af9af21f156c406b1ab5b9c6136e2dfd9753d3d
all runs: OK
# git bisect bad b88d9f8b8ba5722ab4aef7d01c2a5a66b5414b83
Bisecting: 24 revisions left to test after this (roughly 5 steps)
[377d7378a60511970b89c855e033bc523895c1e7] fjes: fix missed check in fjes_acpi_add
testing commit 377d7378a60511970b89c855e033bc523895c1e7 with gcc (GCC) 8.1.0
kernel signature: c7e7ad264735fedbb82f2f5ba853b15c0075f287c2d9d47dfcaedc54da4841c8
all runs: OK
# git bisect bad 377d7378a60511970b89c855e033bc523895c1e7
Bisecting: 12 revisions left to test after this (roughly 4 steps)
[bf368c1377981c89cf08037322412cf421809733] CIFS: Respect O_SYNC and O_DIRECT flags during reconnect
testing commit bf368c1377981c89cf08037322412cf421809733 with gcc (GCC) 8.1.0
kernel signature: f838f4c9cf87790d4b7a6e49389a4fc9fb166f8c5c3399066ac70791259e1d30
run #0: crashed: WARNING: kernel stack regs has bad 'bp' value
run #1: crashed: WARNING: kernel stack regs has bad 'bp' value
run #2: crashed: WARNING: kernel stack regs has bad 'bp' value
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good bf368c1377981c89cf08037322412cf421809733
Bisecting: 6 revisions left to test after this (roughly 3 steps)
[7009b5bf234a61321e3ad7cba6ffb99c30117e1f] scsi: iscsi: Fix a potential deadlock in the timeout handler
testing commit 7009b5bf234a61321e3ad7cba6ffb99c30117e1f with gcc (GCC) 8.1.0
kernel signature: e50a3350f0b8a62983390c72b2e0aa553fb7b41692296de97187c47f03a47b29
run #0: crashed: WARNING: kernel stack regs has bad 'bp' value
run #1: crashed: WARNING: kernel stack regs has bad 'bp' value
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good 7009b5bf234a61321e3ad7cba6ffb99c30117e1f
Bisecting: 3 revisions left to test after this (roughly 2 steps)
[8ebb2441b69a7f35a5131ab9cc77459f61ec4acd] net: stmmac: use correct DMA buffer size in the RX descriptor
testing commit 8ebb2441b69a7f35a5131ab9cc77459f61ec4acd with gcc (GCC) 8.1.0
kernel signature: 6c92de9f730ec14236d671a74bbc6a01581981ea4e09e50909d0401cdb6f598e
run #0: crashed: WARNING: kernel stack regs has bad 'bp' value
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good 8ebb2441b69a7f35a5131ab9cc77459f61ec4acd
Bisecting: 1 revision left to test after this (roughly 1 step)
[e1f7d50ae3a3ec342e87a9b1ce6787bfb8b3c08b] Linux 4.14.160
testing commit e1f7d50ae3a3ec342e87a9b1ce6787bfb8b3c08b with gcc (GCC) 8.1.0
kernel signature: 2186fcfc8d0ea6201cacfb2e057947a8ad1194565487b3ec2dca6a76bd267e2f
run #0: crashed: WARNING: kernel stack regs has bad 'bp' value
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good e1f7d50ae3a3ec342e87a9b1ce6787bfb8b3c08b
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[665c9af8987880414e141e623bf7e6481d1c1696] af_packet: set defaule value for tmo
testing commit 665c9af8987880414e141e623bf7e6481d1c1696 with gcc (GCC) 8.1.0
kernel signature: 3058aef6c84f1c424030a754e757712b4651803b8310fb41a33b98525cf2cf7a
run #0: crashed: WARNING: kernel stack regs has bad 'bp' value
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect good 665c9af8987880414e141e623bf7e6481d1c1696
377d7378a60511970b89c855e033bc523895c1e7 is the first bad commit
commit 377d7378a60511970b89c855e033bc523895c1e7
Author: Chuhong Yuan <hslester96@gmail.com>
Date:   Tue Dec 10 00:22:07 2019 +0800

    fjes: fix missed check in fjes_acpi_add
    
    [ Upstream commit a288f105a03a7e0e629a8da2b31f34ebf0343ee2 ]
    
    fjes_acpi_add() misses a check for platform_device_register_simple().
    Add a check to fix it.
    
    Fixes: 658d439b2292 ("fjes: Introduce FUJITSU Extended Socket Network Device driver")
    Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

 drivers/net/fjes/fjes_main.c | 3 +++
 1 file changed, 3 insertions(+)
culprit signature: c7e7ad264735fedbb82f2f5ba853b15c0075f287c2d9d47dfcaedc54da4841c8
parent  signature: 3058aef6c84f1c424030a754e757712b4651803b8310fb41a33b98525cf2cf7a
revisions tested: 14, total time: 4h25m28.829869557s (build: 1h51m4.700144631s, test: 2h33m4.982679952s)
first good commit: 377d7378a60511970b89c855e033bc523895c1e7 fjes: fix missed check in fjes_acpi_add
cc: ["davem@davemloft.net" "gregkh@linuxfoundation.org" "hslester96@gmail.com"]