Hay
Date
Dec. 5, 2024, 2:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   29.173089] ==================================================================
[   29.174238] BUG: KASAN: invalid-free in kfree+0x270/0x3c8
[   29.175037] Free of addr fff00000c644c001 by task kunit_try_catch/139
[   29.176924] 
[   29.177232] CPU: 1 UID: 0 PID: 139 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241205 #1
[   29.178606] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.179282] Hardware name: linux,dummy-virt (DT)
[   29.179966] Call trace:
[   29.180585]  show_stack+0x20/0x38 (C)
[   29.181236]  dump_stack_lvl+0x8c/0xd0
[   29.181897]  print_report+0x118/0x5e0
[   29.182649]  kasan_report_invalid_free+0xb0/0xd8
[   29.183649]  __kasan_kfree_large+0x5c/0xa8
[   29.184399]  free_large_kmalloc+0x58/0x140
[   29.185003]  kfree+0x270/0x3c8
[   29.185594]  kmalloc_large_invalid_free+0x108/0x270
[   29.186291]  kunit_try_run_case+0x14c/0x3d0
[   29.186944]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.187652]  kthread+0x24c/0x2d0
[   29.188453]  ret_from_fork+0x10/0x20
[   29.189053] 
[   29.189366] The buggy address belongs to the physical page:
[   29.190047] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10644c
[   29.190841] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   29.192241] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   29.193226] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.194260] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.195149] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.196168] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.197429] head: 0bfffe0000000002 ffffc1ffc3191301 ffffffffffffffff 0000000000000000
[   29.198568] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   29.199356] page dumped because: kasan: bad access detected
[   29.199779] 
[   29.200448] Memory state around the buggy address:
[   29.201125]  fff00000c644bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.201907]  fff00000c644bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.203005] >fff00000c644c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.204086]                    ^
[   29.204551]  fff00000c644c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.205486]  fff00000c644c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.206408] ==================================================================

[   26.741948] ==================================================================
[   26.743896] BUG: KASAN: invalid-free in kfree+0x271/0x3f0
[   26.744503] Free of addr ffff88810226c001 by task kunit_try_catch/157
[   26.745561] 
[   26.746256] CPU: 0 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241205 #1
[   26.747668] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.748034] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.748757] Call Trace:
[   26.749443]  <TASK>
[   26.749747]  dump_stack_lvl+0x73/0xb0
[   26.750184]  print_report+0xd1/0x640
[   26.750671]  ? __virt_addr_valid+0x1db/0x2d0
[   26.751539]  ? kfree+0x271/0x3f0
[   26.752055]  ? kasan_addr_to_slab+0x11/0xa0
[   26.752565]  ? kfree+0x271/0x3f0
[   26.753105]  kasan_report_invalid_free+0xc0/0xf0
[   26.753578]  ? kfree+0x271/0x3f0
[   26.753956]  ? kfree+0x271/0x3f0
[   26.754443]  __kasan_kfree_large+0x86/0xd0
[   26.754987]  free_large_kmalloc+0x3b/0xd0
[   26.755437]  kfree+0x271/0x3f0
[   26.756508]  kmalloc_large_invalid_free+0x121/0x2b0
[   26.756877]  ? __pfx_kmalloc_large_invalid_free+0x10/0x10
[   26.757992]  ? __schedule+0xc70/0x27e0
[   26.758732]  ? __pfx_read_tsc+0x10/0x10
[   26.759597]  ? ktime_get_ts64+0x86/0x230
[   26.760330]  kunit_try_run_case+0x1b3/0x490
[   26.760823]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.761983]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   26.762706]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.763390]  ? __kthread_parkme+0x82/0x160
[   26.763802]  ? preempt_count_sub+0x50/0x80
[   26.764583]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.765518]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.766453]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.766868]  kthread+0x257/0x310
[   26.767762]  ? __pfx_kthread+0x10/0x10
[   26.768419]  ret_from_fork+0x41/0x80
[   26.768819]  ? __pfx_kthread+0x10/0x10
[   26.769743]  ret_from_fork_asm+0x1a/0x30
[   26.770352]  </TASK>
[   26.770706] 
[   26.770953] The buggy address belongs to the physical page:
[   26.771497] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10226c
[   26.772469] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   26.773506] flags: 0x200000000000040(head|node=0|zone=2)
[   26.774550] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   26.775556] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.776542] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   26.777540] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.779269] head: 0200000000000002 ffffea0004089b01 ffffffffffffffff 0000000000000000
[   26.780451] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   26.781242] page dumped because: kasan: bad access detected
[   26.782570] 
[   26.782861] Memory state around the buggy address:
[   26.783419]  ffff88810226bf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.784359]  ffff88810226bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   26.785504] >ffff88810226c000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.786623]                    ^
[   26.787123]  ffff88810226c080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.787763]  ffff88810226c100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.788780] ==================================================================