Hello,
kernel test robot noticed "BUG:KASAN:global-out-of-bounds_in_is_software_node" on:
commit: f6c8bb7f93ce0e2d0640e0ea73b33145d849f0d8 ("swnode: Add support to create early during boot")
https://github.com/avpatel/linux.git riscv_acpi_b2_v1
in testcase: boot
compiler: gcc-12
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202308301642.aac23f05-oliver.sang@xxxxxxxxx
[ 43.426753][ T1] ==================================================================
[ 43.428570][ T1] BUG: KASAN: global-out-of-bounds in is_software_node+0x9a/0xc0
[ 43.429100][ T1] Read of size 8 at addr ffffffff8628d220 by task swapper/0/1
[ 43.429100][ T1]
[ 43.429100][ T1] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G N 6.5.0-00106-gf6c8bb7f93ce #1
[ 43.429100][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 43.429100][ T1] Call Trace:
[ 43.429100][ T1] <TASK>
[ 43.429100][ T1] dump_stack_lvl+0x86/0x100
[ 43.429100][ T1] print_address_description+0x57/0x3c0
[ 43.429100][ T1] print_report+0xcc/0x2c0
[ 43.429100][ T1] ? kasan_complete_mode_report_info+0x93/0xc0
[ 43.429100][ T1] ? is_software_node+0x9a/0xc0
[ 43.429100][ T1] kasan_report+0xf8/0x140
[ 43.429100][ T1] ? is_software_node+0x9a/0xc0
[ 43.429100][ T1] __asan_report_load8_noabort+0x14/0x40
[ 43.429100][ T1] is_software_node+0x9a/0xc0
[ 43.429100][ T1] software_node_unregister_node_group+0xb2/0x100
[ 43.441192][ T1] software_node_register_node_group+0x87/0x100
[ 43.441192][ T1] fwnode_pointer+0x110/0x240
[ 43.441192][ T1] ? flags+0x380/0x380
[ 43.441192][ T1] ? test_hashed+0x104/0x1c0
[ 43.441192][ T1] ? fwnode_pointer+0x240/0x240
[ 43.441192][ T1] test_pointer+0x70b/0x980
[ 43.441192][ T1] ? test_hashed+0x1c0/0x1c0
[ 43.441192][ T1] ? __kmem_cache_free+0x172/0x2c0
[ 43.441192][ T1] ? kfree+0x11d/0x280
[ 43.441192][ T1] ? __test+0x150/0x1c0
[ 43.441192][ T1] ? do_test+0x340/0x340
[ 43.441192][ T1] ? kasan_set_track+0x25/0x40
[ 43.441192][ T1] ? test_pointer+0x980/0x980
[ 43.441192][ T1] test_printf_init+0x3c2/0x480
[ 43.441192][ T1] ? test_printf_init+0x3c2/0x480
[ 43.441192][ T1] ? test_pointer+0x980/0x980
[ 43.441192][ T1] ? ida_checks+0x18e/0x200
[ 43.441192][ T1] do_one_initcall+0x1be/0x7c0
[ 43.441192][ T1] ? trace_initcall_level+0x280/0x280
[ 43.441192][ T1] ? do_initcalls+0x30/0x540
[ 43.441192][ T1] do_initcalls+0x230/0x540
[ 43.441192][ T1] kernel_init_freeable+0x2e6/0x400
[ 43.441192][ T1] ? rest_init+0x240/0x240
[ 43.441192][ T1] kernel_init+0x1f/0x200
[ 43.441192][ T1] ? rest_init+0x240/0x240
[ 43.441192][ T1] ret_from_fork+0x58/0xc0
[ 43.441192][ T1] ? rest_init+0x240/0x240
[ 43.441192][ T1] ret_from_fork_asm+0x11/0x40
[ 43.441192][ T1] </TASK>
[ 43.441192][ T1]
[ 43.441192][ T1] The buggy address belongs to the variable:
[ 43.441192][ T1] dev_attr_id+0x2200/0x22a0
[ 43.441192][ T1]
[ 43.441192][ T1] The buggy address belongs to the physical page:
[ 43.441192][ T1] page:ffffea000018a340 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x628d
[ 43.441192][ T1] flags: 0xfffffc0001000(reserved|node=0|zone=1|lastcpupid=0x1fffff)
[ 43.441192][ T1] page_type: 0xffffffff()
[ 43.441192][ T1] raw: 000fffffc0001000 ffffea000018a348 ffffea000018a348 0000000000000000
[ 43.441192][ T1] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[ 43.441192][ T1] page dumped because: kasan: bad access detected
[ 43.441192][ T1] page_owner info is not present (never set?)
[ 43.441192][ T1]
[ 43.441192][ T1] Memory state around the buggy address:
[ 43.441192][ T1] ffffffff8628d100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 43.441192][ T1] ffffffff8628d180: 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9
[ 43.441192][ T1] >ffffffff8628d200: 00 00 00 00 f9 f9 f9 f9 00 06 f9 f9 f9 f9 f9 f9
[ 43.441192][ T1] ^
[ 43.441192][ T1] ffffffff8628d280: 00 02 f9 f9 f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9
[ 43.441192][ T1] ffffffff8628d300: 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9 f9
[ 43.441192][ T1] ==================================================================
[ 43.478039][ T1] Disabling lock debugging due to kernel taint
[ 43.478860][ T1] test_printf: cannot register softnodes; rval -17
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20230830/202308301642.aac23f05-oliver.sang@xxxxxxxxx
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https://github.com/intel/lkp-tests/wiki
