Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.229231] ================================================================== [ 15.229336] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 15.229424] Write of size 1 at addr fff00000c61444eb by task kunit_try_catch/156 [ 15.229475] [ 15.229553] CPU: 0 UID: 0 PID: 156 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.229658] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.229698] Hardware name: linux,dummy-virt (DT) [ 15.229748] Call trace: [ 15.229798] show_stack+0x20/0x38 (C) [ 15.229846] dump_stack_lvl+0x8c/0xd0 [ 15.229890] print_report+0x118/0x5d0 [ 15.230068] kasan_report+0xdc/0x128 [ 15.230232] __asan_report_store1_noabort+0x20/0x30 [ 15.230290] krealloc_more_oob_helper+0x60c/0x678 [ 15.230337] krealloc_more_oob+0x20/0x38 [ 15.230398] kunit_try_run_case+0x170/0x3f0 [ 15.230448] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.230498] kthread+0x328/0x630 [ 15.230537] ret_from_fork+0x10/0x20 [ 15.230693] [ 15.230732] Allocated by task 156: [ 15.230804] kasan_save_stack+0x3c/0x68 [ 15.230847] kasan_save_track+0x20/0x40 [ 15.230883] kasan_save_alloc_info+0x40/0x58 [ 15.230921] __kasan_krealloc+0x118/0x178 [ 15.230974] krealloc_noprof+0x128/0x360 [ 15.231018] krealloc_more_oob_helper+0x168/0x678 [ 15.231056] krealloc_more_oob+0x20/0x38 [ 15.231117] kunit_try_run_case+0x170/0x3f0 [ 15.231217] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.231383] kthread+0x328/0x630 [ 15.231446] ret_from_fork+0x10/0x20 [ 15.231481] [ 15.231500] The buggy address belongs to the object at fff00000c6144400 [ 15.231500] which belongs to the cache kmalloc-256 of size 256 [ 15.231555] The buggy address is located 0 bytes to the right of [ 15.231555] allocated 235-byte region [fff00000c6144400, fff00000c61444eb) [ 15.231940] [ 15.232000] The buggy address belongs to the physical page: [ 15.232091] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106144 [ 15.232152] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.232233] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.232356] page_type: f5(slab) [ 15.232428] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 15.232565] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.232752] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 15.232859] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.232918] head: 0bfffe0000000001 ffffc1ffc3185101 00000000ffffffff 00000000ffffffff [ 15.233203] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 15.233296] page dumped because: kasan: bad access detected [ 15.233350] [ 15.233367] Memory state around the buggy address: [ 15.233398] fff00000c6144380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.233439] fff00000c6144400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.233480] >fff00000c6144480: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 15.233523] ^ [ 15.233571] fff00000c6144500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.233612] fff00000c6144580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.233648] ================================================================== [ 15.274466] ================================================================== [ 15.274521] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 15.274646] Write of size 1 at addr fff00000c77560eb by task kunit_try_catch/160 [ 15.274709] [ 15.274739] CPU: 0 UID: 0 PID: 160 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.275033] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.275176] Hardware name: linux,dummy-virt (DT) [ 15.275275] Call trace: [ 15.275336] show_stack+0x20/0x38 (C) [ 15.275501] dump_stack_lvl+0x8c/0xd0 [ 15.275565] print_report+0x118/0x5d0 [ 15.275632] kasan_report+0xdc/0x128 [ 15.275688] __asan_report_store1_noabort+0x20/0x30 [ 15.275738] krealloc_more_oob_helper+0x60c/0x678 [ 15.275785] krealloc_large_more_oob+0x20/0x38 [ 15.275830] kunit_try_run_case+0x170/0x3f0 [ 15.276023] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.276158] kthread+0x328/0x630 [ 15.276303] ret_from_fork+0x10/0x20 [ 15.276391] [ 15.276485] The buggy address belongs to the physical page: [ 15.276595] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107754 [ 15.276678] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.276724] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.277002] page_type: f8(unknown) [ 15.277177] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.277290] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.277378] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.277523] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.277590] head: 0bfffe0000000002 ffffc1ffc31dd501 00000000ffffffff 00000000ffffffff [ 15.277706] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 15.277750] page dumped because: kasan: bad access detected [ 15.277799] [ 15.277816] Memory state around the buggy address: [ 15.277850] fff00000c7755f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.277894] fff00000c7756000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.277937] >fff00000c7756080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 15.277972] ^ [ 15.278010] fff00000c7756100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 15.278050] fff00000c7756180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 15.278088] ================================================================== [ 15.234055] ================================================================== [ 15.234111] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 15.234158] Write of size 1 at addr fff00000c61444f0 by task kunit_try_catch/156 [ 15.234205] [ 15.234252] CPU: 0 UID: 0 PID: 156 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.234329] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.234392] Hardware name: linux,dummy-virt (DT) [ 15.234424] Call trace: [ 15.234445] show_stack+0x20/0x38 (C) [ 15.234490] dump_stack_lvl+0x8c/0xd0 [ 15.234534] print_report+0x118/0x5d0 [ 15.234580] kasan_report+0xdc/0x128 [ 15.234625] __asan_report_store1_noabort+0x20/0x30 [ 15.234687] krealloc_more_oob_helper+0x5c0/0x678 [ 15.234808] krealloc_more_oob+0x20/0x38 [ 15.234860] kunit_try_run_case+0x170/0x3f0 [ 15.234905] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.235001] kthread+0x328/0x630 [ 15.235051] ret_from_fork+0x10/0x20 [ 15.235096] [ 15.235114] Allocated by task 156: [ 15.235141] kasan_save_stack+0x3c/0x68 [ 15.235201] kasan_save_track+0x20/0x40 [ 15.235313] kasan_save_alloc_info+0x40/0x58 [ 15.235437] __kasan_krealloc+0x118/0x178 [ 15.235592] krealloc_noprof+0x128/0x360 [ 15.235710] krealloc_more_oob_helper+0x168/0x678 [ 15.235750] krealloc_more_oob+0x20/0x38 [ 15.235785] kunit_try_run_case+0x170/0x3f0 [ 15.235838] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.236128] kthread+0x328/0x630 [ 15.236229] ret_from_fork+0x10/0x20 [ 15.236349] [ 15.236443] The buggy address belongs to the object at fff00000c6144400 [ 15.236443] which belongs to the cache kmalloc-256 of size 256 [ 15.236579] The buggy address is located 5 bytes to the right of [ 15.236579] allocated 235-byte region [fff00000c6144400, fff00000c61444eb) [ 15.236749] [ 15.236798] The buggy address belongs to the physical page: [ 15.236861] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106144 [ 15.237019] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.237100] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.237150] page_type: f5(slab) [ 15.237186] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 15.237234] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.237281] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 15.237338] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.237395] head: 0bfffe0000000001 ffffc1ffc3185101 00000000ffffffff 00000000ffffffff [ 15.237451] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 15.237500] page dumped because: kasan: bad access detected [ 15.237537] [ 15.237555] Memory state around the buggy address: [ 15.237584] fff00000c6144380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.237626] fff00000c6144400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.237676] >fff00000c6144480: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 15.237712] ^ [ 15.237750] fff00000c6144500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.237791] fff00000c6144580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.237827] ================================================================== [ 15.280726] ================================================================== [ 15.280885] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 15.280973] Write of size 1 at addr fff00000c77560f0 by task kunit_try_catch/160 [ 15.281034] [ 15.281126] CPU: 0 UID: 0 PID: 160 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.281230] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.281256] Hardware name: linux,dummy-virt (DT) [ 15.281286] Call trace: [ 15.281306] show_stack+0x20/0x38 (C) [ 15.281353] dump_stack_lvl+0x8c/0xd0 [ 15.281397] print_report+0x118/0x5d0 [ 15.281445] kasan_report+0xdc/0x128 [ 15.281489] __asan_report_store1_noabort+0x20/0x30 [ 15.281719] krealloc_more_oob_helper+0x5c0/0x678 [ 15.281898] krealloc_large_more_oob+0x20/0x38 [ 15.282064] kunit_try_run_case+0x170/0x3f0 [ 15.282131] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.282253] kthread+0x328/0x630 [ 15.282362] ret_from_fork+0x10/0x20 [ 15.282501] [ 15.282697] The buggy address belongs to the physical page: [ 15.282859] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107754 [ 15.282963] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 15.283059] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 15.283167] page_type: f8(unknown) [ 15.283271] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.283341] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.283400] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 15.283456] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 15.283503] head: 0bfffe0000000002 ffffc1ffc31dd501 00000000ffffffff 00000000ffffffff [ 15.283566] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 15.283605] page dumped because: kasan: bad access detected [ 15.283644] [ 15.283680] Memory state around the buggy address: [ 15.283711] fff00000c7755f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.283762] fff00000c7756000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.283803] >fff00000c7756080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 15.283854] ^ [ 15.283899] fff00000c7756100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 15.283939] fff00000c7756180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 15.283977] ==================================================================
[ 12.049393] ================================================================== [ 12.049903] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 12.050169] Write of size 1 at addr ffff8881029a20eb by task kunit_try_catch/177 [ 12.050621] [ 12.050812] CPU: 1 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.050857] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.050867] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.050887] Call Trace: [ 12.050898] <TASK> [ 12.050925] dump_stack_lvl+0x73/0xb0 [ 12.050956] print_report+0xd1/0x610 [ 12.050976] ? __virt_addr_valid+0x1db/0x2d0 [ 12.050999] ? krealloc_more_oob_helper+0x821/0x930 [ 12.051021] ? kasan_addr_to_slab+0x11/0xa0 [ 12.051040] ? krealloc_more_oob_helper+0x821/0x930 [ 12.051067] kasan_report+0x141/0x180 [ 12.051088] ? krealloc_more_oob_helper+0x821/0x930 [ 12.051115] __asan_report_store1_noabort+0x1b/0x30 [ 12.051138] krealloc_more_oob_helper+0x821/0x930 [ 12.051159] ? __schedule+0x10cc/0x2b60 [ 12.051180] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 12.051203] ? finish_task_switch.isra.0+0x153/0x700 [ 12.051225] ? __switch_to+0x47/0xf50 [ 12.051250] ? __schedule+0x10cc/0x2b60 [ 12.051270] ? __pfx_read_tsc+0x10/0x10 [ 12.051293] krealloc_large_more_oob+0x1c/0x30 [ 12.051314] kunit_try_run_case+0x1a5/0x480 [ 12.051338] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.051407] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.051432] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.051454] ? __kthread_parkme+0x82/0x180 [ 12.051473] ? preempt_count_sub+0x50/0x80 [ 12.051495] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.051517] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.051539] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.051561] kthread+0x337/0x6f0 [ 12.051579] ? trace_preempt_on+0x20/0xc0 [ 12.051601] ? __pfx_kthread+0x10/0x10 [ 12.051620] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.051640] ? calculate_sigpending+0x7b/0xa0 [ 12.051663] ? __pfx_kthread+0x10/0x10 [ 12.051683] ret_from_fork+0x116/0x1d0 [ 12.051701] ? __pfx_kthread+0x10/0x10 [ 12.051720] ret_from_fork_asm+0x1a/0x30 [ 12.051749] </TASK> [ 12.051759] [ 12.064090] The buggy address belongs to the physical page: [ 12.064460] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029a0 [ 12.064759] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.065342] flags: 0x200000000000040(head|node=0|zone=2) [ 12.065998] page_type: f8(unknown) [ 12.066280] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.066724] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.067149] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.067629] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.067982] head: 0200000000000002 ffffea00040a6801 00000000ffffffff 00000000ffffffff [ 12.068324] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.068941] page dumped because: kasan: bad access detected [ 12.069264] [ 12.069364] Memory state around the buggy address: [ 12.069820] ffff8881029a1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.070246] ffff8881029a2000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.070901] >ffff8881029a2080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 12.071232] ^ [ 12.071680] ffff8881029a2100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.072094] ffff8881029a2180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.072554] ================================================================== [ 11.895485] ================================================================== [ 11.895784] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 11.896133] Write of size 1 at addr ffff888100a96ef0 by task kunit_try_catch/173 [ 11.896531] [ 11.896638] CPU: 1 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 11.896678] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.896689] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.896707] Call Trace: [ 11.896722] <TASK> [ 11.896735] dump_stack_lvl+0x73/0xb0 [ 11.896762] print_report+0xd1/0x610 [ 11.896782] ? __virt_addr_valid+0x1db/0x2d0 [ 11.896802] ? krealloc_more_oob_helper+0x7eb/0x930 [ 11.896824] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.896855] ? krealloc_more_oob_helper+0x7eb/0x930 [ 11.896878] kasan_report+0x141/0x180 [ 11.896898] ? krealloc_more_oob_helper+0x7eb/0x930 [ 11.896941] __asan_report_store1_noabort+0x1b/0x30 [ 11.896965] krealloc_more_oob_helper+0x7eb/0x930 [ 11.896995] ? __schedule+0x10cc/0x2b60 [ 11.897016] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 11.897038] ? finish_task_switch.isra.0+0x153/0x700 [ 11.897059] ? __switch_to+0x47/0xf50 [ 11.897084] ? __schedule+0x10cc/0x2b60 [ 11.897106] ? __pfx_read_tsc+0x10/0x10 [ 11.897128] krealloc_more_oob+0x1c/0x30 [ 11.897148] kunit_try_run_case+0x1a5/0x480 [ 11.897171] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.897192] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.897213] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.897235] ? __kthread_parkme+0x82/0x180 [ 11.897253] ? preempt_count_sub+0x50/0x80 [ 11.897275] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.897297] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.897319] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.897362] kthread+0x337/0x6f0 [ 11.897381] ? trace_preempt_on+0x20/0xc0 [ 11.897403] ? __pfx_kthread+0x10/0x10 [ 11.897432] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.897452] ? calculate_sigpending+0x7b/0xa0 [ 11.897475] ? __pfx_kthread+0x10/0x10 [ 11.897495] ret_from_fork+0x116/0x1d0 [ 11.897512] ? __pfx_kthread+0x10/0x10 [ 11.897531] ret_from_fork_asm+0x1a/0x30 [ 11.897560] </TASK> [ 11.897569] [ 11.905888] Allocated by task 173: [ 11.906137] kasan_save_stack+0x45/0x70 [ 11.906418] kasan_save_track+0x18/0x40 [ 11.906622] kasan_save_alloc_info+0x3b/0x50 [ 11.906801] __kasan_krealloc+0x190/0x1f0 [ 11.907011] krealloc_noprof+0xf3/0x340 [ 11.907210] krealloc_more_oob_helper+0x1a9/0x930 [ 11.907587] krealloc_more_oob+0x1c/0x30 [ 11.907872] kunit_try_run_case+0x1a5/0x480 [ 11.908077] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.908259] kthread+0x337/0x6f0 [ 11.908567] ret_from_fork+0x116/0x1d0 [ 11.908923] ret_from_fork_asm+0x1a/0x30 [ 11.909070] [ 11.909142] The buggy address belongs to the object at ffff888100a96e00 [ 11.909142] which belongs to the cache kmalloc-256 of size 256 [ 11.909495] The buggy address is located 5 bytes to the right of [ 11.909495] allocated 235-byte region [ffff888100a96e00, ffff888100a96eeb) [ 11.909933] [ 11.910012] The buggy address belongs to the physical page: [ 11.910260] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100a96 [ 11.910720] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.911598] flags: 0x200000000000040(head|node=0|zone=2) [ 11.911974] page_type: f5(slab) [ 11.912125] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 11.912516] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.912751] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 11.913086] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.913458] head: 0200000000000001 ffffea000402a581 00000000ffffffff 00000000ffffffff [ 11.913997] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 11.914371] page dumped because: kasan: bad access detected [ 11.914645] [ 11.914774] Memory state around the buggy address: [ 11.915004] ffff888100a96d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.915296] ffff888100a96e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.915781] >ffff888100a96e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 11.916102] ^ [ 11.916445] ffff888100a96f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.916825] ffff888100a96f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.917140] ================================================================== [ 12.073726] ================================================================== [ 12.074323] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 12.075250] Write of size 1 at addr ffff8881029a20f0 by task kunit_try_catch/177 [ 12.076045] [ 12.076148] CPU: 1 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.076189] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.076200] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.076219] Call Trace: [ 12.076230] <TASK> [ 12.076244] dump_stack_lvl+0x73/0xb0 [ 12.076274] print_report+0xd1/0x610 [ 12.076295] ? __virt_addr_valid+0x1db/0x2d0 [ 12.076316] ? krealloc_more_oob_helper+0x7eb/0x930 [ 12.076339] ? kasan_addr_to_slab+0x11/0xa0 [ 12.076358] ? krealloc_more_oob_helper+0x7eb/0x930 [ 12.076380] kasan_report+0x141/0x180 [ 12.076401] ? krealloc_more_oob_helper+0x7eb/0x930 [ 12.076428] __asan_report_store1_noabort+0x1b/0x30 [ 12.076457] krealloc_more_oob_helper+0x7eb/0x930 [ 12.076479] ? __schedule+0x10cc/0x2b60 [ 12.076500] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 12.076524] ? finish_task_switch.isra.0+0x153/0x700 [ 12.076544] ? __switch_to+0x47/0xf50 [ 12.076568] ? __schedule+0x10cc/0x2b60 [ 12.076588] ? __pfx_read_tsc+0x10/0x10 [ 12.076611] krealloc_large_more_oob+0x1c/0x30 [ 12.076632] kunit_try_run_case+0x1a5/0x480 [ 12.076655] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.076676] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.076698] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.076720] ? __kthread_parkme+0x82/0x180 [ 12.076738] ? preempt_count_sub+0x50/0x80 [ 12.076760] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.076782] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.076804] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.076826] kthread+0x337/0x6f0 [ 12.076844] ? trace_preempt_on+0x20/0xc0 [ 12.076865] ? __pfx_kthread+0x10/0x10 [ 12.076884] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.076904] ? calculate_sigpending+0x7b/0xa0 [ 12.076934] ? __pfx_kthread+0x10/0x10 [ 12.076954] ret_from_fork+0x116/0x1d0 [ 12.076971] ? __pfx_kthread+0x10/0x10 [ 12.076990] ret_from_fork_asm+0x1a/0x30 [ 12.077019] </TASK> [ 12.077028] [ 12.089104] The buggy address belongs to the physical page: [ 12.089642] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029a0 [ 12.090326] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.090890] flags: 0x200000000000040(head|node=0|zone=2) [ 12.091089] page_type: f8(unknown) [ 12.091215] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.091821] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.092572] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 12.093281] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 12.094047] head: 0200000000000002 ffffea00040a6801 00000000ffffffff 00000000ffffffff [ 12.094281] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 12.095163] page dumped because: kasan: bad access detected [ 12.095769] [ 12.095964] Memory state around the buggy address: [ 12.096189] ffff8881029a1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.096917] ffff8881029a2000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.097136] >ffff8881029a2080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 12.097347] ^ [ 12.097562] ffff8881029a2100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.097776] ffff8881029a2180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 12.097997] ================================================================== [ 11.861574] ================================================================== [ 11.862242] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 11.862578] Write of size 1 at addr ffff888100a96eeb by task kunit_try_catch/173 [ 11.863138] [ 11.863229] CPU: 1 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 11.863271] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.863283] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.863304] Call Trace: [ 11.863314] <TASK> [ 11.863327] dump_stack_lvl+0x73/0xb0 [ 11.863460] print_report+0xd1/0x610 [ 11.863485] ? __virt_addr_valid+0x1db/0x2d0 [ 11.863506] ? krealloc_more_oob_helper+0x821/0x930 [ 11.863529] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.863549] ? krealloc_more_oob_helper+0x821/0x930 [ 11.863572] kasan_report+0x141/0x180 [ 11.863592] ? krealloc_more_oob_helper+0x821/0x930 [ 11.863619] __asan_report_store1_noabort+0x1b/0x30 [ 11.863642] krealloc_more_oob_helper+0x821/0x930 [ 11.863662] ? __schedule+0x10cc/0x2b60 [ 11.863684] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 11.863706] ? finish_task_switch.isra.0+0x153/0x700 [ 11.863727] ? __switch_to+0x47/0xf50 [ 11.863752] ? __schedule+0x10cc/0x2b60 [ 11.863772] ? __pfx_read_tsc+0x10/0x10 [ 11.863794] krealloc_more_oob+0x1c/0x30 [ 11.863816] kunit_try_run_case+0x1a5/0x480 [ 11.863839] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.863860] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.863882] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.863904] ? __kthread_parkme+0x82/0x180 [ 11.863934] ? preempt_count_sub+0x50/0x80 [ 11.863956] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.863978] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.863999] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.864021] kthread+0x337/0x6f0 [ 11.864039] ? trace_preempt_on+0x20/0xc0 [ 11.864061] ? __pfx_kthread+0x10/0x10 [ 11.864080] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.864101] ? calculate_sigpending+0x7b/0xa0 [ 11.864123] ? __pfx_kthread+0x10/0x10 [ 11.864143] ret_from_fork+0x116/0x1d0 [ 11.864159] ? __pfx_kthread+0x10/0x10 [ 11.864178] ret_from_fork_asm+0x1a/0x30 [ 11.864207] </TASK> [ 11.864216] [ 11.876701] Allocated by task 173: [ 11.877217] kasan_save_stack+0x45/0x70 [ 11.877971] kasan_save_track+0x18/0x40 [ 11.878318] kasan_save_alloc_info+0x3b/0x50 [ 11.879063] __kasan_krealloc+0x190/0x1f0 [ 11.879815] krealloc_noprof+0xf3/0x340 [ 11.880257] krealloc_more_oob_helper+0x1a9/0x930 [ 11.881095] krealloc_more_oob+0x1c/0x30 [ 11.881548] kunit_try_run_case+0x1a5/0x480 [ 11.882191] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.882461] kthread+0x337/0x6f0 [ 11.882589] ret_from_fork+0x116/0x1d0 [ 11.882724] ret_from_fork_asm+0x1a/0x30 [ 11.882864] [ 11.882968] The buggy address belongs to the object at ffff888100a96e00 [ 11.882968] which belongs to the cache kmalloc-256 of size 256 [ 11.883392] The buggy address is located 0 bytes to the right of [ 11.883392] allocated 235-byte region [ffff888100a96e00, ffff888100a96eeb) [ 11.884028] [ 11.884115] The buggy address belongs to the physical page: [ 11.884806] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100a96 [ 11.885673] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.886259] flags: 0x200000000000040(head|node=0|zone=2) [ 11.886718] page_type: f5(slab) [ 11.887045] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 11.887528] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.887941] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 11.888732] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.889197] head: 0200000000000001 ffffea000402a581 00000000ffffffff 00000000ffffffff [ 11.889741] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 11.890435] page dumped because: kasan: bad access detected [ 11.891017] [ 11.891094] Memory state around the buggy address: [ 11.891249] ffff888100a96d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.891542] ffff888100a96e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.892260] >ffff888100a96e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 11.893083] ^ [ 11.893867] ffff888100a96f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.894616] ffff888100a96f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.895038] ==================================================================