Date
July 15, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.290782] ================================================================== [ 15.290852] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 15.291086] Write of size 1 at addr fff00000c175eef0 by task kunit_try_catch/157 [ 15.291138] [ 15.291168] CPU: 1 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.291260] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.291758] Hardware name: linux,dummy-virt (DT) [ 15.291792] Call trace: [ 15.291915] show_stack+0x20/0x38 (C) [ 15.292262] dump_stack_lvl+0x8c/0xd0 [ 15.292317] print_report+0x118/0x5d0 [ 15.292362] kasan_report+0xdc/0x128 [ 15.292416] __asan_report_store1_noabort+0x20/0x30 [ 15.292473] krealloc_more_oob_helper+0x5c0/0x678 [ 15.292995] krealloc_more_oob+0x20/0x38 [ 15.293047] kunit_try_run_case+0x170/0x3f0 [ 15.293142] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.293235] kthread+0x328/0x630 [ 15.293444] ret_from_fork+0x10/0x20 [ 15.293604] [ 15.293642] Allocated by task 157: [ 15.293671] kasan_save_stack+0x3c/0x68 [ 15.293711] kasan_save_track+0x20/0x40 [ 15.293753] kasan_save_alloc_info+0x40/0x58 [ 15.293903] __kasan_krealloc+0x118/0x178 [ 15.293946] krealloc_noprof+0x128/0x360 [ 15.294075] krealloc_more_oob_helper+0x168/0x678 [ 15.294137] krealloc_more_oob+0x20/0x38 [ 15.294188] kunit_try_run_case+0x170/0x3f0 [ 15.294232] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.294273] kthread+0x328/0x630 [ 15.294304] ret_from_fork+0x10/0x20 [ 15.294488] [ 15.294508] The buggy address belongs to the object at fff00000c175ee00 [ 15.294508] which belongs to the cache kmalloc-256 of size 256 [ 15.294642] The buggy address is located 5 bytes to the right of [ 15.294642] allocated 235-byte region [fff00000c175ee00, fff00000c175eeeb) [ 15.294705] [ 15.294724] The buggy address belongs to the physical page: [ 15.294755] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10175e [ 15.294808] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.294853] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.294903] page_type: f5(slab) [ 15.294940] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 15.294989] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.295678] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 15.295733] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.295781] head: 0bfffe0000000001 ffffc1ffc305d781 00000000ffffffff 00000000ffffffff [ 15.296146] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 15.296205] page dumped because: kasan: bad access detected [ 15.296236] [ 15.296254] Memory state around the buggy address: [ 15.296292] fff00000c175ed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.296336] fff00000c175ee00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.296636] >fff00000c175ee80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 15.296684] ^ [ 15.296792] fff00000c175ef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.296927] fff00000c175ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.297002] ================================================================== [ 15.350688] ================================================================== [ 15.350750] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 15.350806] Write of size 1 at addr fff00000c783e0eb by task kunit_try_catch/161 [ 15.350855] [ 15.350889] CPU: 1 UID: 0 PID: 161 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.351328] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.351524] Hardware name: linux,dummy-virt (DT) [ 15.351694] Call trace: [ 15.351716] show_stack+0x20/0x38 (C) [ 15.351769] dump_stack_lvl+0x8c/0xd0 [ 15.351824] print_report+0x118/0x5d0 [ 15.352055] kasan_report+0xdc/0x128 [ 15.352192] __asan_report_store1_noabort+0x20/0x30 [ 15.352244] krealloc_more_oob_helper+0x60c/0x678 [ 15.352291] krealloc_large_more_oob+0x20/0x38 [ 15.352336] kunit_try_run_case+0x170/0x3f0 [ 15.352602] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.352663] kthread+0x328/0x630 [ 15.352706] ret_from_fork+0x10/0x20 [ 15.352754] [ 15.352774] The buggy address belongs to the physical page: [ 15.353094] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10783c [ 15.353374] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.353428] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.353482] page_type: f8(unknown) [ 15.353521] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.353581] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.353753] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.353812] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.353948] head: 0bfffe0000000002 ffffc1ffc31e0f01 00000000ffffffff 00000000ffffffff [ 15.353999] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 15.354066] page dumped because: kasan: bad access detected [ 15.354108] [ 15.354125] Memory state around the buggy address: [ 15.354175] fff00000c783df80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.354262] fff00000c783e000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.354423] >fff00000c783e080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 15.354568] ^ [ 15.354607] fff00000c783e100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 15.354648] fff00000c783e180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 15.354965] ================================================================== [ 15.280893] ================================================================== [ 15.280954] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 15.281508] Write of size 1 at addr fff00000c175eeeb by task kunit_try_catch/157 [ 15.281674] [ 15.281724] CPU: 1 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.281804] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.281830] Hardware name: linux,dummy-virt (DT) [ 15.281977] Call trace: [ 15.282006] show_stack+0x20/0x38 (C) [ 15.282058] dump_stack_lvl+0x8c/0xd0 [ 15.282104] print_report+0x118/0x5d0 [ 15.282149] kasan_report+0xdc/0x128 [ 15.282391] __asan_report_store1_noabort+0x20/0x30 [ 15.282460] krealloc_more_oob_helper+0x60c/0x678 [ 15.282508] krealloc_more_oob+0x20/0x38 [ 15.282628] kunit_try_run_case+0x170/0x3f0 [ 15.282722] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.282825] kthread+0x328/0x630 [ 15.282865] ret_from_fork+0x10/0x20 [ 15.282940] [ 15.283357] Allocated by task 157: [ 15.283498] kasan_save_stack+0x3c/0x68 [ 15.283548] kasan_save_track+0x20/0x40 [ 15.283585] kasan_save_alloc_info+0x40/0x58 [ 15.283629] __kasan_krealloc+0x118/0x178 [ 15.283666] krealloc_noprof+0x128/0x360 [ 15.283749] krealloc_more_oob_helper+0x168/0x678 [ 15.283937] krealloc_more_oob+0x20/0x38 [ 15.284086] kunit_try_run_case+0x170/0x3f0 [ 15.284123] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.284165] kthread+0x328/0x630 [ 15.284277] ret_from_fork+0x10/0x20 [ 15.284313] [ 15.284333] The buggy address belongs to the object at fff00000c175ee00 [ 15.284333] which belongs to the cache kmalloc-256 of size 256 [ 15.284390] The buggy address is located 0 bytes to the right of [ 15.284390] allocated 235-byte region [fff00000c175ee00, fff00000c175eeeb) [ 15.284457] [ 15.284527] The buggy address belongs to the physical page: [ 15.284681] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10175e [ 15.284882] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.284928] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.285029] page_type: f5(slab) [ 15.285067] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 15.285118] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.285167] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 15.285743] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.286322] head: 0bfffe0000000001 ffffc1ffc305d781 00000000ffffffff 00000000ffffffff [ 15.286376] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 15.286416] page dumped because: kasan: bad access detected [ 15.286643] [ 15.286698] Memory state around the buggy address: [ 15.287091] fff00000c175ed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.287209] fff00000c175ee00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.287252] >fff00000c175ee80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 15.287409] ^ [ 15.287449] fff00000c175ef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.287490] fff00000c175ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.287527] ================================================================== [ 15.357390] ================================================================== [ 15.357440] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 15.357488] Write of size 1 at addr fff00000c783e0f0 by task kunit_try_catch/161 [ 15.357828] [ 15.357972] CPU: 1 UID: 0 PID: 161 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.358144] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.358170] Hardware name: linux,dummy-virt (DT) [ 15.358461] Call trace: [ 15.358700] show_stack+0x20/0x38 (C) [ 15.358755] dump_stack_lvl+0x8c/0xd0 [ 15.358946] print_report+0x118/0x5d0 [ 15.359096] kasan_report+0xdc/0x128 [ 15.359162] __asan_report_store1_noabort+0x20/0x30 [ 15.359222] krealloc_more_oob_helper+0x5c0/0x678 [ 15.359298] krealloc_large_more_oob+0x20/0x38 [ 15.359344] kunit_try_run_case+0x170/0x3f0 [ 15.359775] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.360240] kthread+0x328/0x630 [ 15.360341] ret_from_fork+0x10/0x20 [ 15.360397] [ 15.360460] The buggy address belongs to the physical page: [ 15.360490] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10783c [ 15.360551] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.360782] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.360837] page_type: f8(unknown) [ 15.361310] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.361623] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.361686] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.361832] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.361929] head: 0bfffe0000000002 ffffc1ffc31e0f01 00000000ffffffff 00000000ffffffff [ 15.361996] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 15.362058] page dumped because: kasan: bad access detected [ 15.362128] [ 15.362215] Memory state around the buggy address: [ 15.362290] fff00000c783df80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.362349] fff00000c783e000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.362392] >fff00000c783e080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 15.362428] ^ [ 15.362511] fff00000c783e100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 15.362660] fff00000c783e180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 15.362697] ==================================================================
[ 12.305740] ================================================================== [ 12.306225] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 12.306576] Write of size 1 at addr ffff8881029be0eb by task kunit_try_catch/177 [ 12.306920] [ 12.307035] CPU: 0 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.307080] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.307091] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.307111] Call Trace: [ 12.307125] <TASK> [ 12.307141] dump_stack_lvl+0x73/0xb0 [ 12.307172] print_report+0xd1/0x610 [ 12.307195] ? __virt_addr_valid+0x1db/0x2d0 [ 12.307219] ? krealloc_more_oob_helper+0x821/0x930 [ 12.307244] ? kasan_addr_to_slab+0x11/0xa0 [ 12.307265] ? krealloc_more_oob_helper+0x821/0x930 [ 12.307289] kasan_report+0x141/0x180 [ 12.307311] ? krealloc_more_oob_helper+0x821/0x930 [ 12.307341] __asan_report_store1_noabort+0x1b/0x30 [ 12.307366] krealloc_more_oob_helper+0x821/0x930 [ 12.307389] ? __schedule+0x10cc/0x2b60 [ 12.307412] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 12.307438] ? finish_task_switch.isra.0+0x153/0x700 [ 12.307482] ? __switch_to+0x47/0xf50 [ 12.307508] ? __schedule+0x10cc/0x2b60 [ 12.307529] ? __pfx_read_tsc+0x10/0x10 [ 12.307555] krealloc_large_more_oob+0x1c/0x30 [ 12.307578] kunit_try_run_case+0x1a5/0x480 [ 12.307604] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.307627] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.307652] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.307678] ? __kthread_parkme+0x82/0x180 [ 12.307699] ? preempt_count_sub+0x50/0x80 [ 12.307722] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.307747] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.307962] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.307989] kthread+0x337/0x6f0 [ 12.308009] ? trace_preempt_on+0x20/0xc0 [ 12.308034] ? __pfx_kthread+0x10/0x10 [ 12.308056] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.308078] ? calculate_sigpending+0x7b/0xa0 [ 12.308103] ? __pfx_kthread+0x10/0x10 [ 12.308125] ret_from_fork+0x116/0x1d0 [ 12.308145] ? __pfx_kthread+0x10/0x10 [ 12.308166] ret_from_fork_asm+0x1a/0x30 [ 12.308198] </TASK> [ 12.308209] [ 12.315666] The buggy address belongs to the physical page: [ 12.315877] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029bc [ 12.316122] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.316441] flags: 0x200000000000040(head|node=0|zone=2) [ 12.316691] page_type: f8(unknown) [ 12.316879] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.317177] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.317407] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.318056] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.318372] head: 0200000000000002 ffffea00040a6f01 00000000ffffffff 00000000ffffffff [ 12.318711] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.319027] page dumped because: kasan: bad access detected [ 12.319217] [ 12.319312] Memory state around the buggy address: [ 12.319589] ffff8881029bdf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.319872] ffff8881029be000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.320174] >ffff8881029be080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 12.320478] ^ [ 12.320711] ffff8881029be100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.321019] ffff8881029be180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.321305] ================================================================== [ 12.140778] ================================================================== [ 12.141214] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 12.141661] Write of size 1 at addr ffff888100a25eeb by task kunit_try_catch/173 [ 12.141946] [ 12.142037] CPU: 1 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.142080] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.142091] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.142111] Call Trace: [ 12.142122] <TASK> [ 12.142136] dump_stack_lvl+0x73/0xb0 [ 12.142167] print_report+0xd1/0x610 [ 12.142189] ? __virt_addr_valid+0x1db/0x2d0 [ 12.142213] ? krealloc_more_oob_helper+0x821/0x930 [ 12.142237] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.142260] ? krealloc_more_oob_helper+0x821/0x930 [ 12.142285] kasan_report+0x141/0x180 [ 12.142307] ? krealloc_more_oob_helper+0x821/0x930 [ 12.142417] __asan_report_store1_noabort+0x1b/0x30 [ 12.142462] krealloc_more_oob_helper+0x821/0x930 [ 12.142485] ? __schedule+0x10cc/0x2b60 [ 12.142509] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 12.142534] ? finish_task_switch.isra.0+0x153/0x700 [ 12.142558] ? __switch_to+0x47/0xf50 [ 12.142585] ? __schedule+0x10cc/0x2b60 [ 12.142606] ? __pfx_read_tsc+0x10/0x10 [ 12.142631] krealloc_more_oob+0x1c/0x30 [ 12.142653] kunit_try_run_case+0x1a5/0x480 [ 12.142678] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.142701] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.142725] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.142749] ? __kthread_parkme+0x82/0x180 [ 12.142779] ? preempt_count_sub+0x50/0x80 [ 12.142802] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.142826] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.142851] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.142876] kthread+0x337/0x6f0 [ 12.142895] ? trace_preempt_on+0x20/0xc0 [ 12.142919] ? __pfx_kthread+0x10/0x10 [ 12.142939] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.142962] ? calculate_sigpending+0x7b/0xa0 [ 12.142988] ? __pfx_kthread+0x10/0x10 [ 12.143010] ret_from_fork+0x116/0x1d0 [ 12.143029] ? __pfx_kthread+0x10/0x10 [ 12.143049] ret_from_fork_asm+0x1a/0x30 [ 12.143081] </TASK> [ 12.143091] [ 12.150831] Allocated by task 173: [ 12.150963] kasan_save_stack+0x45/0x70 [ 12.151126] kasan_save_track+0x18/0x40 [ 12.151425] kasan_save_alloc_info+0x3b/0x50 [ 12.151666] __kasan_krealloc+0x190/0x1f0 [ 12.151875] krealloc_noprof+0xf3/0x340 [ 12.152069] krealloc_more_oob_helper+0x1a9/0x930 [ 12.152275] krealloc_more_oob+0x1c/0x30 [ 12.152416] kunit_try_run_case+0x1a5/0x480 [ 12.152624] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.152883] kthread+0x337/0x6f0 [ 12.153019] ret_from_fork+0x116/0x1d0 [ 12.153208] ret_from_fork_asm+0x1a/0x30 [ 12.153370] [ 12.153471] The buggy address belongs to the object at ffff888100a25e00 [ 12.153471] which belongs to the cache kmalloc-256 of size 256 [ 12.153949] The buggy address is located 0 bytes to the right of [ 12.153949] allocated 235-byte region [ffff888100a25e00, ffff888100a25eeb) [ 12.154494] [ 12.154594] The buggy address belongs to the physical page: [ 12.154854] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100a24 [ 12.155208] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.155549] flags: 0x200000000000040(head|node=0|zone=2) [ 12.155729] page_type: f5(slab) [ 12.155908] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 12.156253] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.156694] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 12.157052] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.157508] head: 0200000000000001 ffffea0004028901 00000000ffffffff 00000000ffffffff [ 12.157828] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 12.158135] page dumped because: kasan: bad access detected [ 12.158373] [ 12.158461] Memory state around the buggy address: [ 12.158666] ffff888100a25d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.158944] ffff888100a25e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.159179] >ffff888100a25e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 12.159492] ^ [ 12.159876] ffff888100a25f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.160131] ffff888100a25f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.160526] ================================================================== [ 12.161112] ================================================================== [ 12.161461] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 12.161858] Write of size 1 at addr ffff888100a25ef0 by task kunit_try_catch/173 [ 12.162187] [ 12.162293] CPU: 1 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.162402] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.162415] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.162433] Call Trace: [ 12.162445] <TASK> [ 12.162475] dump_stack_lvl+0x73/0xb0 [ 12.162503] print_report+0xd1/0x610 [ 12.162525] ? __virt_addr_valid+0x1db/0x2d0 [ 12.162547] ? krealloc_more_oob_helper+0x7eb/0x930 [ 12.162571] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.162594] ? krealloc_more_oob_helper+0x7eb/0x930 [ 12.162619] kasan_report+0x141/0x180 [ 12.162641] ? krealloc_more_oob_helper+0x7eb/0x930 [ 12.162670] __asan_report_store1_noabort+0x1b/0x30 [ 12.162696] krealloc_more_oob_helper+0x7eb/0x930 [ 12.162719] ? __schedule+0x10cc/0x2b60 [ 12.162740] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 12.162775] ? finish_task_switch.isra.0+0x153/0x700 [ 12.162797] ? __switch_to+0x47/0xf50 [ 12.162821] ? __schedule+0x10cc/0x2b60 [ 12.162843] ? __pfx_read_tsc+0x10/0x10 [ 12.162866] krealloc_more_oob+0x1c/0x30 [ 12.162888] kunit_try_run_case+0x1a5/0x480 [ 12.162912] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.162935] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.162959] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.162983] ? __kthread_parkme+0x82/0x180 [ 12.163003] ? preempt_count_sub+0x50/0x80 [ 12.163026] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.163051] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.163075] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.163100] kthread+0x337/0x6f0 [ 12.163119] ? trace_preempt_on+0x20/0xc0 [ 12.163142] ? __pfx_kthread+0x10/0x10 [ 12.163163] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.163184] ? calculate_sigpending+0x7b/0xa0 [ 12.163208] ? __pfx_kthread+0x10/0x10 [ 12.163229] ret_from_fork+0x116/0x1d0 [ 12.163248] ? __pfx_kthread+0x10/0x10 [ 12.163268] ret_from_fork_asm+0x1a/0x30 [ 12.163298] </TASK> [ 12.163308] [ 12.171973] Allocated by task 173: [ 12.172113] kasan_save_stack+0x45/0x70 [ 12.172293] kasan_save_track+0x18/0x40 [ 12.172587] kasan_save_alloc_info+0x3b/0x50 [ 12.172816] __kasan_krealloc+0x190/0x1f0 [ 12.173017] krealloc_noprof+0xf3/0x340 [ 12.173161] krealloc_more_oob_helper+0x1a9/0x930 [ 12.173435] krealloc_more_oob+0x1c/0x30 [ 12.173646] kunit_try_run_case+0x1a5/0x480 [ 12.173914] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.174230] kthread+0x337/0x6f0 [ 12.174582] ret_from_fork+0x116/0x1d0 [ 12.174766] ret_from_fork_asm+0x1a/0x30 [ 12.174959] [ 12.175043] The buggy address belongs to the object at ffff888100a25e00 [ 12.175043] which belongs to the cache kmalloc-256 of size 256 [ 12.175497] The buggy address is located 5 bytes to the right of [ 12.175497] allocated 235-byte region [ffff888100a25e00, ffff888100a25eeb) [ 12.176073] [ 12.176168] The buggy address belongs to the physical page: [ 12.176388] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100a24 [ 12.176630] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.176925] flags: 0x200000000000040(head|node=0|zone=2) [ 12.177180] page_type: f5(slab) [ 12.177352] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 12.177702] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.178218] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 12.178598] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.178960] head: 0200000000000001 ffffea0004028901 00000000ffffffff 00000000ffffffff [ 12.179304] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 12.179640] page dumped because: kasan: bad access detected [ 12.179853] [ 12.179948] Memory state around the buggy address: [ 12.180181] ffff888100a25d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.180590] ffff888100a25e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.180889] >ffff888100a25e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 12.181144] ^ [ 12.181484] ffff888100a25f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.181841] ffff888100a25f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.182101] ================================================================== [ 12.321767] ================================================================== [ 12.322085] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 12.322725] Write of size 1 at addr ffff8881029be0f0 by task kunit_try_catch/177 [ 12.323082] [ 12.323187] CPU: 0 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.323227] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.323238] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.323257] Call Trace: [ 12.323268] <TASK> [ 12.323281] dump_stack_lvl+0x73/0xb0 [ 12.323309] print_report+0xd1/0x610 [ 12.323331] ? __virt_addr_valid+0x1db/0x2d0 [ 12.323354] ? krealloc_more_oob_helper+0x7eb/0x930 [ 12.323378] ? kasan_addr_to_slab+0x11/0xa0 [ 12.323399] ? krealloc_more_oob_helper+0x7eb/0x930 [ 12.323425] kasan_report+0x141/0x180 [ 12.323629] ? krealloc_more_oob_helper+0x7eb/0x930 [ 12.323664] __asan_report_store1_noabort+0x1b/0x30 [ 12.323691] krealloc_more_oob_helper+0x7eb/0x930 [ 12.323714] ? __schedule+0x10cc/0x2b60 [ 12.323737] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 12.323778] ? finish_task_switch.isra.0+0x153/0x700 [ 12.323801] ? __switch_to+0x47/0xf50 [ 12.323826] ? __schedule+0x10cc/0x2b60 [ 12.323849] ? __pfx_read_tsc+0x10/0x10 [ 12.323873] krealloc_large_more_oob+0x1c/0x30 [ 12.323897] kunit_try_run_case+0x1a5/0x480 [ 12.323922] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.323945] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.323970] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.323994] ? __kthread_parkme+0x82/0x180 [ 12.324015] ? preempt_count_sub+0x50/0x80 [ 12.324038] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.324063] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.324089] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.324115] kthread+0x337/0x6f0 [ 12.324135] ? trace_preempt_on+0x20/0xc0 [ 12.324160] ? __pfx_kthread+0x10/0x10 [ 12.324183] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.324206] ? calculate_sigpending+0x7b/0xa0 [ 12.324230] ? __pfx_kthread+0x10/0x10 [ 12.324252] ret_from_fork+0x116/0x1d0 [ 12.324271] ? __pfx_kthread+0x10/0x10 [ 12.324292] ret_from_fork_asm+0x1a/0x30 [ 12.324323] </TASK> [ 12.324333] [ 12.335835] The buggy address belongs to the physical page: [ 12.336082] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029bc [ 12.336394] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.337052] flags: 0x200000000000040(head|node=0|zone=2) [ 12.337457] page_type: f8(unknown) [ 12.337767] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.338255] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.338862] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.339198] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.339676] head: 0200000000000002 ffffea00040a6f01 00000000ffffffff 00000000ffffffff [ 12.340184] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.340672] page dumped because: kasan: bad access detected [ 12.340978] [ 12.341054] Memory state around the buggy address: [ 12.341226] ffff8881029bdf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.341534] ffff8881029be000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.341847] >ffff8881029be080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 12.342124] ^ [ 12.342385] ffff8881029be100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.342708] ffff8881029be180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.343328] ==================================================================