Date
June 2, 2025, 2:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.560652] ================================================================== [ 18.561270] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x180/0x520 [ 18.561613] Read of size 1 at addr fff00000c1789e00 by task kunit_try_catch/154 [ 18.561948] [ 18.563276] CPU: 1 UID: 0 PID: 154 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 18.563469] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.563529] Hardware name: linux,dummy-virt (DT) [ 18.563598] Call trace: [ 18.563643] show_stack+0x20/0x38 (C) [ 18.563758] dump_stack_lvl+0x8c/0xd0 [ 18.563851] print_report+0x118/0x608 [ 18.563944] kasan_report+0xdc/0x128 [ 18.564031] __kasan_check_byte+0x54/0x70 [ 18.564122] krealloc_noprof+0x44/0x360 [ 18.564237] krealloc_uaf+0x180/0x520 [ 18.564304] kunit_try_run_case+0x170/0x3f0 [ 18.564371] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.564427] kthread+0x318/0x620 [ 18.564478] ret_from_fork+0x10/0x20 [ 18.564534] [ 18.568930] Allocated by task 154: [ 18.569736] kasan_save_stack+0x3c/0x68 [ 18.571181] kasan_save_track+0x20/0x40 [ 18.571442] kasan_save_alloc_info+0x40/0x58 [ 18.571876] __kasan_kmalloc+0xd4/0xd8 [ 18.572317] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.572662] krealloc_uaf+0xc8/0x520 [ 18.573087] kunit_try_run_case+0x170/0x3f0 [ 18.573610] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.574102] kthread+0x318/0x620 [ 18.574460] ret_from_fork+0x10/0x20 [ 18.574905] [ 18.575124] Freed by task 154: [ 18.575518] kasan_save_stack+0x3c/0x68 [ 18.575906] kasan_save_track+0x20/0x40 [ 18.576760] kasan_save_free_info+0x4c/0x78 [ 18.577213] __kasan_slab_free+0x6c/0x98 [ 18.577669] kfree+0x214/0x3c8 [ 18.578493] krealloc_uaf+0x12c/0x520 [ 18.579248] kunit_try_run_case+0x170/0x3f0 [ 18.579558] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.580233] kthread+0x318/0x620 [ 18.580599] ret_from_fork+0x10/0x20 [ 18.581214] [ 18.581495] The buggy address belongs to the object at fff00000c1789e00 [ 18.581495] which belongs to the cache kmalloc-256 of size 256 [ 18.582911] The buggy address is located 0 bytes inside of [ 18.582911] freed 256-byte region [fff00000c1789e00, fff00000c1789f00) [ 18.583424] [ 18.583559] The buggy address belongs to the physical page: [ 18.583808] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101788 [ 18.584139] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 18.585801] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 18.586664] page_type: f5(slab) [ 18.587261] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 18.587939] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.588804] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 18.589414] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.590032] head: 0bfffe0000000001 ffffc1ffc305e201 ffffffffffffffff 0000000000000000 [ 18.590965] head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 [ 18.591850] page dumped because: kasan: bad access detected [ 18.592472] [ 18.592871] Memory state around the buggy address: [ 18.593523] fff00000c1789d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.594288] fff00000c1789d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.595709] >fff00000c1789e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.596277] ^ [ 18.596578] fff00000c1789e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.597101] fff00000c1789f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.597665] ================================================================== [ 18.600461] ================================================================== [ 18.601006] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x4c8/0x520 [ 18.601578] Read of size 1 at addr fff00000c1789e00 by task kunit_try_catch/154 [ 18.602038] [ 18.602465] CPU: 1 UID: 0 PID: 154 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 18.602678] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.602732] Hardware name: linux,dummy-virt (DT) [ 18.602819] Call trace: [ 18.602865] show_stack+0x20/0x38 (C) [ 18.602989] dump_stack_lvl+0x8c/0xd0 [ 18.603166] print_report+0x118/0x608 [ 18.603268] kasan_report+0xdc/0x128 [ 18.603347] __asan_report_load1_noabort+0x20/0x30 [ 18.603444] krealloc_uaf+0x4c8/0x520 [ 18.603536] kunit_try_run_case+0x170/0x3f0 [ 18.603633] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.603735] kthread+0x318/0x620 [ 18.603831] ret_from_fork+0x10/0x20 [ 18.603933] [ 18.609378] Allocated by task 154: [ 18.609909] kasan_save_stack+0x3c/0x68 [ 18.610609] kasan_save_track+0x20/0x40 [ 18.610980] kasan_save_alloc_info+0x40/0x58 [ 18.611342] __kasan_kmalloc+0xd4/0xd8 [ 18.611673] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.612074] krealloc_uaf+0xc8/0x520 [ 18.612535] kunit_try_run_case+0x170/0x3f0 [ 18.612965] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.613445] kthread+0x318/0x620 [ 18.613902] ret_from_fork+0x10/0x20 [ 18.615343] [ 18.615523] Freed by task 154: [ 18.615971] kasan_save_stack+0x3c/0x68 [ 18.616540] kasan_save_track+0x20/0x40 [ 18.617080] kasan_save_free_info+0x4c/0x78 [ 18.617642] __kasan_slab_free+0x6c/0x98 [ 18.618312] kfree+0x214/0x3c8 [ 18.618663] krealloc_uaf+0x12c/0x520 [ 18.619034] kunit_try_run_case+0x170/0x3f0 [ 18.619435] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.619867] kthread+0x318/0x620 [ 18.620297] ret_from_fork+0x10/0x20 [ 18.620861] [ 18.621314] The buggy address belongs to the object at fff00000c1789e00 [ 18.621314] which belongs to the cache kmalloc-256 of size 256 [ 18.622455] The buggy address is located 0 bytes inside of [ 18.622455] freed 256-byte region [fff00000c1789e00, fff00000c1789f00) [ 18.624054] [ 18.624387] The buggy address belongs to the physical page: [ 18.624984] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101788 [ 18.625770] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 18.626773] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 18.627413] page_type: f5(slab) [ 18.627797] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 18.628588] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.629318] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 18.629993] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.631055] head: 0bfffe0000000001 ffffc1ffc305e201 ffffffffffffffff 0000000000000000 [ 18.631495] head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 [ 18.632535] page dumped because: kasan: bad access detected [ 18.633221] [ 18.633630] Memory state around the buggy address: [ 18.634028] fff00000c1789d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.634620] fff00000c1789d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.635572] >fff00000c1789e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.636098] ^ [ 18.639149] fff00000c1789e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.640570] fff00000c1789f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.640980] ==================================================================
[ 12.655766] ================================================================== [ 12.656112] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x53e/0x5e0 [ 12.656375] Read of size 1 at addr ffff8881003a1a00 by task kunit_try_catch/172 [ 12.656845] [ 12.656933] CPU: 0 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 12.656971] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.656982] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.657001] Call Trace: [ 12.657028] <TASK> [ 12.657044] dump_stack_lvl+0x73/0xb0 [ 12.657071] print_report+0xd1/0x650 [ 12.657096] ? __virt_addr_valid+0x1db/0x2d0 [ 12.657121] ? krealloc_uaf+0x53e/0x5e0 [ 12.657144] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.657172] ? krealloc_uaf+0x53e/0x5e0 [ 12.657195] kasan_report+0x140/0x180 [ 12.657219] ? krealloc_uaf+0x53e/0x5e0 [ 12.657247] __asan_report_load1_noabort+0x18/0x20 [ 12.657273] krealloc_uaf+0x53e/0x5e0 [ 12.657297] ? __pfx_krealloc_uaf+0x10/0x10 [ 12.657319] ? finish_task_switch.isra.0+0x153/0x700 [ 12.657345] ? __switch_to+0x5d9/0xf60 [ 12.657373] ? __schedule+0xce8/0x2840 [ 12.657398] ? __pfx_read_tsc+0x10/0x10 [ 12.657422] ? ktime_get_ts64+0x86/0x230 [ 12.657449] kunit_try_run_case+0x1a6/0x480 [ 12.657475] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.657499] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 12.657524] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.657550] ? __kthread_parkme+0x82/0x160 [ 12.657857] ? preempt_count_sub+0x50/0x80 [ 12.657888] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.657914] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.657943] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.657971] kthread+0x324/0x6e0 [ 12.657994] ? trace_preempt_on+0x20/0xc0 [ 12.658031] ? __pfx_kthread+0x10/0x10 [ 12.658056] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.658081] ? calculate_sigpending+0x7b/0xa0 [ 12.658105] ? __pfx_kthread+0x10/0x10 [ 12.658130] ret_from_fork+0x41/0x80 [ 12.658150] ? __pfx_kthread+0x10/0x10 [ 12.658175] ret_from_fork_asm+0x1a/0x30 [ 12.658210] </TASK> [ 12.658220] [ 12.665607] Allocated by task 172: [ 12.665781] kasan_save_stack+0x45/0x70 [ 12.665998] kasan_save_track+0x18/0x40 [ 12.666338] kasan_save_alloc_info+0x3b/0x50 [ 12.666560] __kasan_kmalloc+0xb7/0xc0 [ 12.666768] __kmalloc_cache_noprof+0x18a/0x420 [ 12.666986] krealloc_uaf+0xbc/0x5e0 [ 12.667180] kunit_try_run_case+0x1a6/0x480 [ 12.667327] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.668284] kthread+0x324/0x6e0 [ 12.668856] ret_from_fork+0x41/0x80 [ 12.669324] ret_from_fork_asm+0x1a/0x30 [ 12.669520] [ 12.669879] Freed by task 172: [ 12.670000] kasan_save_stack+0x45/0x70 [ 12.670214] kasan_save_track+0x18/0x40 [ 12.670409] kasan_save_free_info+0x3f/0x60 [ 12.670636] __kasan_slab_free+0x56/0x70 [ 12.670990] kfree+0x224/0x3f0 [ 12.671197] krealloc_uaf+0x13e/0x5e0 [ 12.671350] kunit_try_run_case+0x1a6/0x480 [ 12.671570] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.671802] kthread+0x324/0x6e0 [ 12.672078] ret_from_fork+0x41/0x80 [ 12.672264] ret_from_fork_asm+0x1a/0x30 [ 12.672405] [ 12.672474] The buggy address belongs to the object at ffff8881003a1a00 [ 12.672474] which belongs to the cache kmalloc-256 of size 256 [ 12.673258] The buggy address is located 0 bytes inside of [ 12.673258] freed 256-byte region [ffff8881003a1a00, ffff8881003a1b00) [ 12.673831] [ 12.674440] The buggy address belongs to the physical page: [ 12.674802] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1003a0 [ 12.675776] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.676559] flags: 0x200000000000040(head|node=0|zone=2) [ 12.677237] page_type: f5(slab) [ 12.677546] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 12.677826] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.678084] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 12.678613] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.679224] head: 0200000000000001 ffffea000400e801 ffffffffffffffff 0000000000000000 [ 12.679668] head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 [ 12.679943] page dumped because: kasan: bad access detected [ 12.680213] [ 12.680297] Memory state around the buggy address: [ 12.680517] ffff8881003a1900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.681201] ffff8881003a1980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.681562] >ffff8881003a1a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.682056] ^ [ 12.682332] ffff8881003a1a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.683046] ffff8881003a1b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.683344] ================================================================== [ 12.624819] ================================================================== [ 12.625892] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x1b9/0x5e0 [ 12.626211] Read of size 1 at addr ffff8881003a1a00 by task kunit_try_catch/172 [ 12.626498] [ 12.626612] CPU: 0 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.14.10-rc1 #1 [ 12.626654] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.626666] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.626686] Call Trace: [ 12.626699] <TASK> [ 12.626716] dump_stack_lvl+0x73/0xb0 [ 12.626745] print_report+0xd1/0x650 [ 12.626769] ? __virt_addr_valid+0x1db/0x2d0 [ 12.626795] ? krealloc_uaf+0x1b9/0x5e0 [ 12.626817] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.626845] ? krealloc_uaf+0x1b9/0x5e0 [ 12.626868] kasan_report+0x140/0x180 [ 12.626892] ? krealloc_uaf+0x1b9/0x5e0 [ 12.626918] ? krealloc_uaf+0x1b9/0x5e0 [ 12.626942] __kasan_check_byte+0x3d/0x50 [ 12.626966] krealloc_noprof+0x3f/0x340 [ 12.626990] krealloc_uaf+0x1b9/0x5e0 [ 12.627013] ? __pfx_krealloc_uaf+0x10/0x10 [ 12.627049] ? finish_task_switch.isra.0+0x153/0x700 [ 12.627076] ? __switch_to+0x5d9/0xf60 [ 12.627105] ? __schedule+0xce8/0x2840 [ 12.627131] ? __pfx_read_tsc+0x10/0x10 [ 12.627155] ? ktime_get_ts64+0x86/0x230 [ 12.627185] kunit_try_run_case+0x1a6/0x480 [ 12.627214] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.627239] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 12.627267] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.627294] ? __kthread_parkme+0x82/0x160 [ 12.627319] ? preempt_count_sub+0x50/0x80 [ 12.627345] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.627370] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.627400] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.627429] kthread+0x324/0x6e0 [ 12.627527] ? trace_preempt_on+0x20/0xc0 [ 12.627556] ? __pfx_kthread+0x10/0x10 [ 12.627580] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.627605] ? calculate_sigpending+0x7b/0xa0 [ 12.627629] ? __pfx_kthread+0x10/0x10 [ 12.627654] ret_from_fork+0x41/0x80 [ 12.627675] ? __pfx_kthread+0x10/0x10 [ 12.627700] ret_from_fork_asm+0x1a/0x30 [ 12.627734] </TASK> [ 12.627746] [ 12.638084] Allocated by task 172: [ 12.638279] kasan_save_stack+0x45/0x70 [ 12.638474] kasan_save_track+0x18/0x40 [ 12.638973] kasan_save_alloc_info+0x3b/0x50 [ 12.639305] __kasan_kmalloc+0xb7/0xc0 [ 12.639482] __kmalloc_cache_noprof+0x18a/0x420 [ 12.639999] krealloc_uaf+0xbc/0x5e0 [ 12.640210] kunit_try_run_case+0x1a6/0x480 [ 12.640370] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.640958] kthread+0x324/0x6e0 [ 12.641263] ret_from_fork+0x41/0x80 [ 12.641546] ret_from_fork_asm+0x1a/0x30 [ 12.641909] [ 12.642027] Freed by task 172: [ 12.642191] kasan_save_stack+0x45/0x70 [ 12.642374] kasan_save_track+0x18/0x40 [ 12.642552] kasan_save_free_info+0x3f/0x60 [ 12.642735] __kasan_slab_free+0x56/0x70 [ 12.642916] kfree+0x224/0x3f0 [ 12.643536] krealloc_uaf+0x13e/0x5e0 [ 12.643752] kunit_try_run_case+0x1a6/0x480 [ 12.644123] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.644443] kthread+0x324/0x6e0 [ 12.644800] ret_from_fork+0x41/0x80 [ 12.645099] ret_from_fork_asm+0x1a/0x30 [ 12.645444] [ 12.645543] The buggy address belongs to the object at ffff8881003a1a00 [ 12.645543] which belongs to the cache kmalloc-256 of size 256 [ 12.646244] The buggy address is located 0 bytes inside of [ 12.646244] freed 256-byte region [ffff8881003a1a00, ffff8881003a1b00) [ 12.646875] [ 12.646981] The buggy address belongs to the physical page: [ 12.647416] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1003a0 [ 12.647998] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.648391] flags: 0x200000000000040(head|node=0|zone=2) [ 12.648745] page_type: f5(slab) [ 12.648904] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 12.649221] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.649522] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 12.650096] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.650501] head: 0200000000000001 ffffea000400e801 ffffffffffffffff 0000000000000000 [ 12.650976] head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 [ 12.651365] page dumped because: kasan: bad access detected [ 12.651791] [ 12.651874] Memory state around the buggy address: [ 12.652178] ffff8881003a1900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.652540] ffff8881003a1980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.652959] >ffff8881003a1a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.653338] ^ [ 12.653462] ffff8881003a1a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.654010] ffff8881003a1b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.654305] ==================================================================