Hay
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Date
Dec. 6, 2024, 3:11 p.m.

Environment
qemu-arm64
qemu-x86_64 

[   33.491768] ==================================================================
[   33.492924] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340
[   33.493675] Read of size 1 at addr fff00000c6b30000 by task kunit_try_catch/218
[   33.494836] 
[   33.495724] CPU: 1 UID: 0 PID: 218 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241206 #1
[   33.496870] Tainted: [B]=BAD_PAGE, [N]=TEST
[   33.497436] Hardware name: linux,dummy-virt (DT)
[   33.498002] Call trace:
[   33.498416]  show_stack+0x20/0x38 (C)
[   33.499476]  dump_stack_lvl+0x8c/0xd0
[   33.500097]  print_report+0x118/0x5e0
[   33.500635]  kasan_report+0xc8/0x118
[   33.501268]  __asan_report_load1_noabort+0x20/0x30
[   33.502038]  mempool_uaf_helper+0x314/0x340
[   33.503008]  mempool_kmalloc_large_uaf+0xbc/0x118
[   33.503597]  kunit_try_run_case+0x14c/0x3d0
[   33.504483]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   33.505356]  kthread+0x24c/0x2d0
[   33.505974]  ret_from_fork+0x10/0x20
[   33.506950] 
[   33.507325] The buggy address belongs to the physical page:
[   33.508261] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106b30
[   33.509298] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   33.510359] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   33.511251] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   33.512983] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   33.513944] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   33.515262] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   33.515884] head: 0bfffe0000000002 ffffc1ffc31acc01 ffffffffffffffff 0000000000000000
[   33.516817] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   33.517715] page dumped because: kasan: bad access detected
[   33.518842] 
[   33.519621] Memory state around the buggy address:
[   33.520249]  fff00000c6b2ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   33.521154]  fff00000c6b2ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   33.522128] >fff00000c6b30000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   33.523309]                    ^
[   33.524058]  fff00000c6b30080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   33.525035]  fff00000c6b30100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   33.525951] ==================================================================
[   33.612016] ==================================================================
[   33.613276] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340
[   33.614718] Read of size 1 at addr fff00000c6b20000 by task kunit_try_catch/222
[   33.615947] 
[   33.616276] CPU: 0 UID: 0 PID: 222 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241206 #1
[   33.617437] Tainted: [B]=BAD_PAGE, [N]=TEST
[   33.617912] Hardware name: linux,dummy-virt (DT)
[   33.618680] Call trace:
[   33.619147]  show_stack+0x20/0x38 (C)
[   33.619808]  dump_stack_lvl+0x8c/0xd0
[   33.620322]  print_report+0x118/0x5e0
[   33.620975]  kasan_report+0xc8/0x118
[   33.621528]  __asan_report_load1_noabort+0x20/0x30
[   33.622214]  mempool_uaf_helper+0x314/0x340
[   33.622851]  mempool_page_alloc_uaf+0xb8/0x118
[   33.623545]  kunit_try_run_case+0x14c/0x3d0
[   33.624228]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   33.624979]  kthread+0x24c/0x2d0
[   33.625585]  ret_from_fork+0x10/0x20
[   33.626248] 
[   33.626592] The buggy address belongs to the physical page:
[   33.627323] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106b20
[   33.628171] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   33.629036] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   33.629911] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   33.630728] page dumped because: kasan: bad access detected
[   33.631460] 
[   33.631849] Memory state around the buggy address:
[   33.632496]  fff00000c6b1ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   33.633321]  fff00000c6b1ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   33.634169] >fff00000c6b20000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   33.634976]                    ^
[   33.635457]  fff00000c6b20080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   33.636397]  fff00000c6b20100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   33.637098] ==================================================================
Metadata Full log Test run details 

[   26.228138] ==================================================================
[   26.229147] BUG: KASAN: use-after-free in mempool_uaf_helper+0x394/0x400
[   26.230228] Read of size 1 at addr ffff888102acc000 by task kunit_try_catch/237
[   26.231512] 
[   26.232003] CPU: 1 UID: 0 PID: 237 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241206 #1
[   26.234478] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.234885] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.236119] Call Trace:
[   26.236407]  <TASK>
[   26.236702]  dump_stack_lvl+0x73/0xb0
[   26.237155]  print_report+0xd1/0x640
[   26.238136]  ? __virt_addr_valid+0x1db/0x2d0
[   26.238557]  ? kasan_addr_to_slab+0x11/0xa0
[   26.239703]  kasan_report+0x102/0x140
[   26.240005]  ? mempool_uaf_helper+0x394/0x400
[   26.240894]  ? mempool_uaf_helper+0x394/0x400
[   26.241960]  __asan_report_load1_noabort+0x18/0x20
[   26.242439]  mempool_uaf_helper+0x394/0x400
[   26.243711]  ? __pfx_mempool_uaf_helper+0x10/0x10
[   26.244684]  ? irqentry_exit+0x2a/0x60
[   26.245008]  ? sysvec_apic_timer_interrupt+0x50/0x90
[   26.246609]  mempool_kmalloc_large_uaf+0xb3/0x100
[   26.247139]  ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10
[   26.248031]  ? __pfx_mempool_kmalloc+0x10/0x10
[   26.249094]  ? __pfx_mempool_kfree+0x10/0x10
[   26.249586]  ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10
[   26.250067]  kunit_try_run_case+0x1b3/0x490
[   26.251083]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.251872]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   26.252408]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.253735]  ? __kthread_parkme+0x82/0x160
[   26.254501]  ? preempt_count_sub+0x50/0x80
[   26.255665]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.256107]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.258067]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.258726]  kthread+0x257/0x310
[   26.259095]  ? __pfx_kthread+0x10/0x10
[   26.259495]  ret_from_fork+0x41/0x80
[   26.259849]  ? __pfx_kthread+0x10/0x10
[   26.260839]  ret_from_fork_asm+0x1a/0x30
[   26.261458]  </TASK>
[   26.262018] 
[   26.262263] The buggy address belongs to the physical page:
[   26.263371] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102acc
[   26.265691] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   26.266318] flags: 0x200000000000040(head|node=0|zone=2)
[   26.267194] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   26.267788] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.268739] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   26.269261] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.271365] head: 0200000000000002 ffffea00040ab301 ffffffffffffffff 0000000000000000
[   26.272793] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   26.273302] page dumped because: kasan: bad access detected
[   26.274878] 
[   26.275376] Memory state around the buggy address:
[   26.275995]  ffff888102acbf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.276359]  ffff888102acbf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.277266] >ffff888102acc000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.279378]                    ^
[   26.279652]  ffff888102acc080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.281047]  ffff888102acc100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.281636] ==================================================================
[   26.352474] ==================================================================
[   26.353457] BUG: KASAN: use-after-free in mempool_uaf_helper+0x394/0x400
[   26.354404] Read of size 1 at addr ffff888102994000 by task kunit_try_catch/241
[   26.355947] 
[   26.356212] CPU: 0 UID: 0 PID: 241 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241206 #1
[   26.356921] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.357864] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.359222] Call Trace:
[   26.359527]  <TASK>
[   26.359796]  dump_stack_lvl+0x73/0xb0
[   26.360262]  print_report+0xd1/0x640
[   26.360664]  ? __virt_addr_valid+0x1db/0x2d0
[   26.363145]  ? kasan_addr_to_slab+0x11/0xa0
[   26.363768]  kasan_report+0x102/0x140
[   26.364128]  ? mempool_uaf_helper+0x394/0x400
[   26.364638]  ? mempool_uaf_helper+0x394/0x400
[   26.365426]  __asan_report_load1_noabort+0x18/0x20
[   26.366855]  mempool_uaf_helper+0x394/0x400
[   26.367204]  ? __pfx_mempool_uaf_helper+0x10/0x10
[   26.367801]  ? update_load_avg+0x1c3/0x2110
[   26.369121]  ? update_curr+0x7d/0x5a0
[   26.369909]  ? update_curr+0x7d/0x5a0
[   26.371360]  ? finish_task_switch.isra.0+0x153/0x700
[   26.372376]  mempool_page_alloc_uaf+0xb1/0x100
[   26.372979]  ? __pfx_mempool_page_alloc_uaf+0x10/0x10
[   26.373881]  ? __switch_to+0x5d9/0xf60
[   26.374412]  ? __pfx_mempool_alloc_pages+0x10/0x10
[   26.375690]  ? __pfx_mempool_free_pages+0x10/0x10
[   26.376666]  ? __pfx_read_tsc+0x10/0x10
[   26.377088]  ? ktime_get_ts64+0x86/0x230
[   26.377633]  kunit_try_run_case+0x1b3/0x490
[   26.378636]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.379521]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   26.380774]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.381430]  ? __kthread_parkme+0x82/0x160
[   26.382422]  ? preempt_count_sub+0x50/0x80
[   26.382733]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.384176]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.385090]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.385852]  kthread+0x257/0x310
[   26.386339]  ? __pfx_kthread+0x10/0x10
[   26.386855]  ret_from_fork+0x41/0x80
[   26.387638]  ? __pfx_kthread+0x10/0x10
[   26.388879]  ret_from_fork_asm+0x1a/0x30
[   26.389541]  </TASK>
[   26.389755] 
[   26.390374] The buggy address belongs to the physical page:
[   26.391536] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102994
[   26.393996] flags: 0x200000000000000(node=0|zone=2)
[   26.394636] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000
[   26.395278] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.396718] page dumped because: kasan: bad access detected
[   26.397337] 
[   26.397507] Memory state around the buggy address:
[   26.397890]  ffff888102993f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.399596]  ffff888102993f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.401184] >ffff888102994000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.403089]                    ^
[   26.403528]  ffff888102994080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.404235]  ffff888102994100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   26.404715] ==================================================================
Metadata Full log Test run details