Hay
Sign in
Date
Nov. 20, 2024, 6:35 a.m.

Environment
qemu-arm64
qemu-x86_64 

[   39.002076] ==================================================================
[   39.003137] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340
[   39.004299] Read of size 1 at addr fff00000c674c000 by task kunit_try_catch/218
[   39.005008] 
[   39.005318] CPU: 1 UID: 0 PID: 218 Comm: kunit_try_catch Tainted: G    B            N 6.12.0-next-20241120 #1
[   39.007754] Tainted: [B]=BAD_PAGE, [N]=TEST
[   39.008300] Hardware name: linux,dummy-virt (DT)
[   39.008857] Call trace:
[   39.009536]  show_stack+0x20/0x38 (C)
[   39.010358]  dump_stack_lvl+0x8c/0xd0
[   39.010971]  print_report+0x118/0x5e0
[   39.011541]  kasan_report+0xc8/0x118
[   39.012714]  __asan_report_load1_noabort+0x20/0x30
[   39.013633]  mempool_uaf_helper+0x314/0x340
[   39.014517]  mempool_kmalloc_large_uaf+0xbc/0x118
[   39.015142]  kunit_try_run_case+0x14c/0x3d0
[   39.015744]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   39.016433]  kthread+0x24c/0x2d0
[   39.017007]  ret_from_fork+0x10/0x20
[   39.017965] 
[   39.018228] The buggy address belongs to the physical page:
[   39.018695] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10674c
[   39.019378] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   39.020279] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   39.021094] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   39.022484] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   39.023253] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   39.024248] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   39.025261] head: 0bfffe0000000002 ffffc1ffc319d301 ffffffffffffffff 0000000000000000
[   39.026350] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   39.027590] page dumped because: kasan: bad access detected
[   39.028501] 
[   39.028822] Memory state around the buggy address:
[   39.029619]  fff00000c674bf00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.030815]  fff00000c674bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.031706] >fff00000c674c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.032706]                    ^
[   39.033357]  fff00000c674c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.034511]  fff00000c674c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.035771] ==================================================================
[   39.119681] ==================================================================
[   39.120734] BUG: KASAN: use-after-free in mempool_uaf_helper+0x314/0x340
[   39.121521] Read of size 1 at addr fff00000c67f8000 by task kunit_try_catch/222
[   39.122323] 
[   39.122744] CPU: 1 UID: 0 PID: 222 Comm: kunit_try_catch Tainted: G    B            N 6.12.0-next-20241120 #1
[   39.124185] Tainted: [B]=BAD_PAGE, [N]=TEST
[   39.124777] Hardware name: linux,dummy-virt (DT)
[   39.126404] Call trace:
[   39.126818]  show_stack+0x20/0x38 (C)
[   39.127420]  dump_stack_lvl+0x8c/0xd0
[   39.128034]  print_report+0x118/0x5e0
[   39.128660]  kasan_report+0xc8/0x118
[   39.129158]  __asan_report_load1_noabort+0x20/0x30
[   39.129850]  mempool_uaf_helper+0x314/0x340
[   39.130355]  mempool_page_alloc_uaf+0xb8/0x118
[   39.131014]  kunit_try_run_case+0x14c/0x3d0
[   39.131665]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   39.132348]  kthread+0x24c/0x2d0
[   39.132856]  ret_from_fork+0x10/0x20
[   39.133324] 
[   39.133689] The buggy address belongs to the physical page:
[   39.134368] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1067f8
[   39.135187] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   39.136047] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   39.136896] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   39.137703] page dumped because: kasan: bad access detected
[   39.138237] 
[   39.138586] Memory state around the buggy address:
[   39.139173]  fff00000c67f7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.139954]  fff00000c67f7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.140686] >fff00000c67f8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.141473]                    ^
[   39.141952]  fff00000c67f8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.142735]  fff00000c67f8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   39.143553] ==================================================================
Metadata Full log Test run details 

[   30.557499] ==================================================================
[   30.558665] BUG: KASAN: use-after-free in mempool_uaf_helper+0x394/0x400
[   30.559684] Read of size 1 at addr ffff888102ce4000 by task kunit_try_catch/236
[   30.560549] 
[   30.560825] CPU: 1 UID: 0 PID: 236 Comm: kunit_try_catch Tainted: G    B            N 6.12.0-next-20241120 #1
[   30.562389] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.562849] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   30.563626] Call Trace:
[   30.564062]  <TASK>
[   30.564491]  dump_stack_lvl+0x73/0xb0
[   30.564990]  print_report+0xd1/0x640
[   30.565412]  ? __virt_addr_valid+0x1db/0x2d0
[   30.565985]  ? kasan_addr_to_slab+0x11/0xa0
[   30.566570]  kasan_report+0x102/0x140
[   30.567098]  ? mempool_uaf_helper+0x394/0x400
[   30.567527]  ? mempool_uaf_helper+0x394/0x400
[   30.568579]  __asan_report_load1_noabort+0x18/0x20
[   30.569046]  mempool_uaf_helper+0x394/0x400
[   30.569611]  ? __pfx_mempool_uaf_helper+0x10/0x10
[   30.570668]  ? irqentry_exit+0x2a/0x60
[   30.571013]  ? sysvec_apic_timer_interrupt+0x50/0x90
[   30.571953]  mempool_kmalloc_large_uaf+0xb3/0x100
[   30.572331]  ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10
[   30.573144]  ? __pfx_mempool_kmalloc+0x10/0x10
[   30.573956]  ? __pfx_mempool_kfree+0x10/0x10
[   30.574326]  ? __pfx_mempool_kmalloc_large_uaf+0x10/0x10
[   30.575116]  kunit_try_run_case+0x1b3/0x490
[   30.575984]  ? __pfx_kunit_try_run_case+0x10/0x10
[   30.576630]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   30.577179]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   30.577649]  ? __kthread_parkme+0x82/0x160
[   30.578364]  ? preempt_count_sub+0x50/0x80
[   30.578717]  ? __pfx_kunit_try_run_case+0x10/0x10
[   30.579595]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   30.580234]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   30.580914]  kthread+0x257/0x310
[   30.581241]  ? __pfx_kthread+0x10/0x10
[   30.581928]  ret_from_fork+0x41/0x80
[   30.582253]  ? __pfx_kthread+0x10/0x10
[   30.582893]  ret_from_fork_asm+0x1a/0x30
[   30.583431]  </TASK>
[   30.583795] 
[   30.584112] The buggy address belongs to the physical page:
[   30.584714] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ce4
[   30.585626] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   30.586592] flags: 0x200000000000040(head|node=0|zone=2)
[   30.587206] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   30.587965] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   30.588569] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   30.589729] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   30.590595] head: 0200000000000002 ffffea00040b3901 ffffffffffffffff 0000000000000000
[   30.591336] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   30.592340] page dumped because: kasan: bad access detected
[   30.593158] 
[   30.593458] Memory state around the buggy address:
[   30.594387]  ffff888102ce3f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.595043]  ffff888102ce3f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.595829] >ffff888102ce4000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.596426]                    ^
[   30.596878]  ffff888102ce4080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.597418]  ffff888102ce4100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.598238] ==================================================================
[   30.680052] ==================================================================
[   30.681236] BUG: KASAN: use-after-free in mempool_uaf_helper+0x394/0x400
[   30.681832] Read of size 1 at addr ffff888102ce8000 by task kunit_try_catch/240
[   30.682915] 
[   30.683240] CPU: 1 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G    B            N 6.12.0-next-20241120 #1
[   30.684516] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.684910] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   30.686533] Call Trace:
[   30.687256]  <TASK>
[   30.687709]  dump_stack_lvl+0x73/0xb0
[   30.688069]  print_report+0xd1/0x640
[   30.688586]  ? __virt_addr_valid+0x1db/0x2d0
[   30.689503]  ? kasan_addr_to_slab+0x11/0xa0
[   30.690321]  kasan_report+0x102/0x140
[   30.690765]  ? mempool_uaf_helper+0x394/0x400
[   30.691221]  ? mempool_uaf_helper+0x394/0x400
[   30.691682]  __asan_report_load1_noabort+0x18/0x20
[   30.692479]  mempool_uaf_helper+0x394/0x400
[   30.693109]  ? __pfx_mempool_uaf_helper+0x10/0x10
[   30.693441]  ? finish_task_switch.isra.0+0x153/0x700
[   30.694143]  mempool_page_alloc_uaf+0xb1/0x100
[   30.695057]  ? __pfx_mempool_page_alloc_uaf+0x10/0x10
[   30.695816]  ? __switch_to+0x5d9/0xf60
[   30.696484]  ? __pfx_mempool_alloc_pages+0x10/0x10
[   30.696996]  ? __pfx_mempool_free_pages+0x10/0x10
[   30.697704]  ? __pfx_read_tsc+0x10/0x10
[   30.698173]  ? ktime_get_ts64+0x84/0x230
[   30.698577]  kunit_try_run_case+0x1b3/0x490
[   30.699294]  ? __pfx_kunit_try_run_case+0x10/0x10
[   30.699903]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   30.700439]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   30.701086]  ? __kthread_parkme+0x82/0x160
[   30.701615]  ? preempt_count_sub+0x50/0x80
[   30.702228]  ? __pfx_kunit_try_run_case+0x10/0x10
[   30.702560]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   30.703270]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   30.704290]  kthread+0x257/0x310
[   30.704667]  ? __pfx_kthread+0x10/0x10
[   30.705205]  ret_from_fork+0x41/0x80
[   30.705727]  ? __pfx_kthread+0x10/0x10
[   30.706295]  ret_from_fork_asm+0x1a/0x30
[   30.706782]  </TASK>
[   30.707372] 
[   30.707604] The buggy address belongs to the physical page:
[   30.708514] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ce8
[   30.709148] flags: 0x200000000000000(node=0|zone=2)
[   30.709919] raw: 0200000000000000 0000000000000000 dead000000000122 0000000000000000
[   30.710541] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   30.711905] page dumped because: kasan: bad access detected
[   30.712473] 
[   30.712907] Memory state around the buggy address:
[   30.713457]  ffff888102ce7f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.714211]  ffff888102ce7f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.714975] >ffff888102ce8000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.715961]                    ^
[   30.716421]  ffff888102ce8080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.717552]  ffff888102ce8100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   30.718521] ==================================================================
Metadata Full log Test run details