Details
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Bug
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Resolution: Fixed
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Critical
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None
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None
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3
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9223372036854775807
Description
easy to replicate - just build a lustre with with 2.15.0 (without my patches applied).
sysctl -w kernel.panic_on_warn=1
will helps with crash dump obtain.
[ 5715.612789] LNet: 6072:0:(rpc.c:616:srpc_service_add_buffers()) waiting for adding buffer [ 5716.149797] LNet: 6072:0:(rpc.c:616:srpc_service_add_buffers()) waiting for adding buffer [ 5716.683091] LNet: 6072:0:(rpc.c:616:srpc_service_add_buffers()) waiting for adding buffer [ 5716.952287] ================================================================== [ 5716.958820] BUG: KASAN: slab-out-of-bounds in lstcon_testrpc_prep+0x19e7/0x1bb0 [lnet_selftest] [ 5716.960248] Read of size 4 at addr ffff8888bbaa866c by task lt-lst/6371 [ 5716.961381] [ 5716.961667] CPU: 3 PID: 6371 Comm: lt-lst Tainted: G OE ---------r- - 4.18.0-305.25.1.el8_4.x86_64+debug #1 [ 5716.963474] Hardware name: Red Hat KVM, BIOS 1.15.0-2.module_el8.6.0+2880+7d9e3703 04/01/2014 [ 5716.964554] Call Trace: [ 5716.964970] dump_stack+0x8e/0xd0 [ 5716.965562] ? lstcon_testrpc_prep+0x19e7/0x1bb0 [lnet_selftest] [ 5716.966596] print_address_description.constprop.5+0x1e/0x230 [ 5716.967577] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 5716.968385] ? lstcon_testrpc_prep+0x19e7/0x1bb0 [lnet_selftest] [ 5716.969420] ? lstcon_testrpc_prep+0x19e7/0x1bb0 [lnet_selftest] [ 5716.970411] ? lstcon_testrpc_prep+0x19e7/0x1bb0 [lnet_selftest] [ 5716.971462] __kasan_report.cold.7+0x37/0x86 [ 5716.972244] ? lstcon_testrpc_prep+0x19e7/0x1bb0 [lnet_selftest] [ 5716.973050] kasan_report+0x37/0x50 [ 5716.973682] lstcon_testrpc_prep+0x19e7/0x1bb0 [lnet_selftest]