Date
May 29, 2025, 7:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.311346] ================================================================== [ 21.311664] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 21.312160] Write of size 1 at addr fff00000c65ea0f0 by task kunit_try_catch/160 [ 21.312344] [ 21.312498] CPU: 1 UID: 0 PID: 160 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 21.312712] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.312778] Hardware name: linux,dummy-virt (DT) [ 21.312856] Call trace: [ 21.312912] show_stack+0x20/0x38 (C) [ 21.313034] dump_stack_lvl+0x8c/0xd0 [ 21.313157] print_report+0x118/0x608 [ 21.313275] kasan_report+0xdc/0x128 [ 21.313389] __asan_report_store1_noabort+0x20/0x30 [ 21.313972] krealloc_more_oob_helper+0x5c0/0x678 [ 21.315001] krealloc_large_more_oob+0x20/0x38 [ 21.315340] kunit_try_run_case+0x170/0x3f0 [ 21.315500] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.315809] kthread+0x328/0x630 [ 21.316221] ret_from_fork+0x10/0x20 [ 21.316575] [ 21.316725] The buggy address belongs to the physical page: [ 21.316821] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065e8 [ 21.317231] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.319411] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 21.319499] page_type: f8(unknown) [ 21.319551] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.319607] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.319661] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.319713] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.319765] head: 0bfffe0000000002 ffffc1ffc3197a01 00000000ffffffff 00000000ffffffff [ 21.319817] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 21.319860] page dumped because: kasan: bad access detected [ 21.319894] [ 21.319915] Memory state around the buggy address: [ 21.319953] fff00000c65e9f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.320000] fff00000c65ea000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.320046] >fff00000c65ea080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 21.320087] ^ [ 21.320133] fff00000c65ea100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 21.320177] fff00000c65ea180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 21.320220] ================================================================== [ 21.297021] ================================================================== [ 21.297208] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 21.297741] Write of size 1 at addr fff00000c65ea0eb by task kunit_try_catch/160 [ 21.298121] [ 21.298325] CPU: 1 UID: 0 PID: 160 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 21.298994] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.299067] Hardware name: linux,dummy-virt (DT) [ 21.299304] Call trace: [ 21.299485] show_stack+0x20/0x38 (C) [ 21.299761] dump_stack_lvl+0x8c/0xd0 [ 21.299889] print_report+0x118/0x608 [ 21.300011] kasan_report+0xdc/0x128 [ 21.300123] __asan_report_store1_noabort+0x20/0x30 [ 21.300248] krealloc_more_oob_helper+0x60c/0x678 [ 21.300373] krealloc_large_more_oob+0x20/0x38 [ 21.300507] kunit_try_run_case+0x170/0x3f0 [ 21.300629] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.300761] kthread+0x328/0x630 [ 21.300868] ret_from_fork+0x10/0x20 [ 21.301379] [ 21.301535] The buggy address belongs to the physical page: [ 21.301628] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065e8 [ 21.302009] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.302280] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 21.302865] page_type: f8(unknown) [ 21.303099] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.303259] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.303561] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 21.303838] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 21.304216] head: 0bfffe0000000002 ffffc1ffc3197a01 00000000ffffffff 00000000ffffffff [ 21.304726] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 21.304924] page dumped because: kasan: bad access detected [ 21.305292] [ 21.305355] Memory state around the buggy address: [ 21.305528] fff00000c65e9f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.305777] fff00000c65ea000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.306017] >fff00000c65ea080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 21.306140] ^ [ 21.306236] fff00000c65ea100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 21.306343] fff00000c65ea180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 21.306462] ================================================================== [ 21.196693] ================================================================== [ 21.196866] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 21.197021] Write of size 1 at addr fff00000c47294eb by task kunit_try_catch/156 [ 21.197149] [ 21.197243] CPU: 1 UID: 0 PID: 156 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 21.197457] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.197514] Hardware name: linux,dummy-virt (DT) [ 21.197583] Call trace: [ 21.197638] show_stack+0x20/0x38 (C) [ 21.197797] dump_stack_lvl+0x8c/0xd0 [ 21.197921] print_report+0x118/0x608 [ 21.198030] kasan_report+0xdc/0x128 [ 21.198130] __asan_report_store1_noabort+0x20/0x30 [ 21.198248] krealloc_more_oob_helper+0x60c/0x678 [ 21.198382] krealloc_more_oob+0x20/0x38 [ 21.198513] kunit_try_run_case+0x170/0x3f0 [ 21.198644] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.198776] kthread+0x328/0x630 [ 21.198899] ret_from_fork+0x10/0x20 [ 21.199034] [ 21.199086] Allocated by task 156: [ 21.199164] kasan_save_stack+0x3c/0x68 [ 21.199303] kasan_save_track+0x20/0x40 [ 21.199413] kasan_save_alloc_info+0x40/0x58 [ 21.199510] __kasan_krealloc+0x118/0x178 [ 21.199599] krealloc_noprof+0x128/0x360 [ 21.199680] krealloc_more_oob_helper+0x168/0x678 [ 21.199755] krealloc_more_oob+0x20/0x38 [ 21.199873] kunit_try_run_case+0x170/0x3f0 [ 21.200203] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.200386] kthread+0x328/0x630 [ 21.200485] ret_from_fork+0x10/0x20 [ 21.200575] [ 21.200628] The buggy address belongs to the object at fff00000c4729400 [ 21.200628] which belongs to the cache kmalloc-256 of size 256 [ 21.200966] The buggy address is located 0 bytes to the right of [ 21.200966] allocated 235-byte region [fff00000c4729400, fff00000c47294eb) [ 21.201117] [ 21.201173] The buggy address belongs to the physical page: [ 21.201253] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104728 [ 21.201385] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.201930] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 21.202706] page_type: f5(slab) [ 21.203049] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 21.203705] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.203894] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 21.204128] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.204310] head: 0bfffe0000000001 ffffc1ffc311ca01 00000000ffffffff 00000000ffffffff [ 21.204797] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 21.204979] page dumped because: kasan: bad access detected [ 21.205061] [ 21.205502] Memory state around the buggy address: [ 21.205669] fff00000c4729380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.205893] fff00000c4729400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.206352] >fff00000c4729480: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 21.206472] ^ [ 21.206563] fff00000c4729500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.206646] fff00000c4729580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.206729] ================================================================== [ 21.209049] ================================================================== [ 21.209166] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 21.209601] Write of size 1 at addr fff00000c47294f0 by task kunit_try_catch/156 [ 21.209858] [ 21.210247] CPU: 1 UID: 0 PID: 156 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT [ 21.210628] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.210701] Hardware name: linux,dummy-virt (DT) [ 21.210850] Call trace: [ 21.210905] show_stack+0x20/0x38 (C) [ 21.211289] dump_stack_lvl+0x8c/0xd0 [ 21.211483] print_report+0x118/0x608 [ 21.211685] kasan_report+0xdc/0x128 [ 21.211889] __asan_report_store1_noabort+0x20/0x30 [ 21.212138] krealloc_more_oob_helper+0x5c0/0x678 [ 21.212420] krealloc_more_oob+0x20/0x38 [ 21.212992] kunit_try_run_case+0x170/0x3f0 [ 21.213149] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.213279] kthread+0x328/0x630 [ 21.213385] ret_from_fork+0x10/0x20 [ 21.213523] [ 21.213569] Allocated by task 156: [ 21.213638] kasan_save_stack+0x3c/0x68 [ 21.214414] kasan_save_track+0x20/0x40 [ 21.214512] kasan_save_alloc_info+0x40/0x58 [ 21.214556] __kasan_krealloc+0x118/0x178 [ 21.214599] krealloc_noprof+0x128/0x360 [ 21.214641] krealloc_more_oob_helper+0x168/0x678 [ 21.214685] krealloc_more_oob+0x20/0x38 [ 21.214724] kunit_try_run_case+0x170/0x3f0 [ 21.214766] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.214813] kthread+0x328/0x630 [ 21.214865] ret_from_fork+0x10/0x20 [ 21.214906] [ 21.214935] The buggy address belongs to the object at fff00000c4729400 [ 21.214935] which belongs to the cache kmalloc-256 of size 256 [ 21.215001] The buggy address is located 5 bytes to the right of [ 21.215001] allocated 235-byte region [fff00000c4729400, fff00000c47294eb) [ 21.215069] [ 21.215094] The buggy address belongs to the physical page: [ 21.215132] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104728 [ 21.215192] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.215243] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 21.215305] page_type: f5(slab) [ 21.215353] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 21.215446] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.215576] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 21.215688] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 21.215783] head: 0bfffe0000000001 ffffc1ffc311ca01 00000000ffffffff 00000000ffffffff [ 21.215889] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 21.215986] page dumped because: kasan: bad access detected [ 21.216065] [ 21.216112] Memory state around the buggy address: [ 21.216191] fff00000c4729380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.216298] fff00000c4729400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.216418] >fff00000c4729480: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 21.216520] ^ [ 21.216627] fff00000c4729500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.216753] fff00000c4729580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.216893] ==================================================================
[ 10.492924] ================================================================== [ 10.493355] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 10.493605] Write of size 1 at addr ffff888100a1daeb by task kunit_try_catch/173 [ 10.493862] [ 10.493950] CPU: 1 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.493993] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.494005] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.494024] Call Trace: [ 10.494036] <TASK> [ 10.494050] dump_stack_lvl+0x73/0xb0 [ 10.494076] print_report+0xd1/0x650 [ 10.494097] ? __virt_addr_valid+0x1db/0x2d0 [ 10.494119] ? krealloc_more_oob_helper+0x821/0x930 [ 10.494142] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.494164] ? krealloc_more_oob_helper+0x821/0x930 [ 10.494188] kasan_report+0x141/0x180 [ 10.494210] ? krealloc_more_oob_helper+0x821/0x930 [ 10.494238] __asan_report_store1_noabort+0x1b/0x30 [ 10.494258] krealloc_more_oob_helper+0x821/0x930 [ 10.494280] ? __schedule+0x10cc/0x2b60 [ 10.494303] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 10.494327] ? finish_task_switch.isra.0+0x153/0x700 [ 10.494348] ? __switch_to+0x47/0xf50 [ 10.494373] ? __schedule+0x10cc/0x2b60 [ 10.494395] ? __pfx_read_tsc+0x10/0x10 [ 10.494418] krealloc_more_oob+0x1c/0x30 [ 10.494440] kunit_try_run_case+0x1a5/0x480 [ 10.494460] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.494479] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.494503] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.494526] ? __kthread_parkme+0x82/0x180 [ 10.494553] ? preempt_count_sub+0x50/0x80 [ 10.494575] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.494595] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.494934] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.494965] kthread+0x337/0x6f0 [ 10.494986] ? trace_preempt_on+0x20/0xc0 [ 10.495010] ? __pfx_kthread+0x10/0x10 [ 10.495030] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.495217] ? calculate_sigpending+0x7b/0xa0 [ 10.495258] ? __pfx_kthread+0x10/0x10 [ 10.495282] ret_from_fork+0x116/0x1d0 [ 10.495301] ? __pfx_kthread+0x10/0x10 [ 10.495322] ret_from_fork_asm+0x1a/0x30 [ 10.495355] </TASK> [ 10.495365] [ 10.512367] Allocated by task 173: [ 10.512512] kasan_save_stack+0x45/0x70 [ 10.512690] kasan_save_track+0x18/0x40 [ 10.512951] kasan_save_alloc_info+0x3b/0x50 [ 10.513160] __kasan_krealloc+0x190/0x1f0 [ 10.513383] krealloc_noprof+0xf3/0x340 [ 10.513575] krealloc_more_oob_helper+0x1a9/0x930 [ 10.513836] krealloc_more_oob+0x1c/0x30 [ 10.513990] kunit_try_run_case+0x1a5/0x480 [ 10.514139] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.514401] kthread+0x337/0x6f0 [ 10.514582] ret_from_fork+0x116/0x1d0 [ 10.515572] ret_from_fork_asm+0x1a/0x30 [ 10.515787] [ 10.516108] The buggy address belongs to the object at ffff888100a1da00 [ 10.516108] which belongs to the cache kmalloc-256 of size 256 [ 10.516681] The buggy address is located 0 bytes to the right of [ 10.516681] allocated 235-byte region [ffff888100a1da00, ffff888100a1daeb) [ 10.517777] [ 10.517953] The buggy address belongs to the physical page: [ 10.518188] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100a1c [ 10.518668] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.519185] flags: 0x200000000000040(head|node=0|zone=2) [ 10.519514] page_type: f5(slab) [ 10.519663] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 10.520271] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 10.520627] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 10.521092] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 10.521488] head: 0200000000000001 ffffea0004028701 00000000ffffffff 00000000ffffffff [ 10.521986] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 10.522322] page dumped because: kasan: bad access detected [ 10.522569] [ 10.522670] Memory state around the buggy address: [ 10.523212] ffff888100a1d980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.523503] ffff888100a1da00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.523938] >ffff888100a1da80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 10.524381] ^ [ 10.524692] ffff888100a1db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.525221] ffff888100a1db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.525575] ================================================================== [ 10.661142] ================================================================== [ 10.661620] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 10.661924] Write of size 1 at addr ffff8881039560eb by task kunit_try_catch/177 [ 10.662508] [ 10.662635] CPU: 0 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.662680] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.662693] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.662713] Call Trace: [ 10.662725] <TASK> [ 10.662738] dump_stack_lvl+0x73/0xb0 [ 10.662779] print_report+0xd1/0x650 [ 10.662802] ? __virt_addr_valid+0x1db/0x2d0 [ 10.662825] ? krealloc_more_oob_helper+0x821/0x930 [ 10.662849] ? kasan_addr_to_slab+0x11/0xa0 [ 10.662869] ? krealloc_more_oob_helper+0x821/0x930 [ 10.662894] kasan_report+0x141/0x180 [ 10.662916] ? krealloc_more_oob_helper+0x821/0x930 [ 10.662945] __asan_report_store1_noabort+0x1b/0x30 [ 10.662968] krealloc_more_oob_helper+0x821/0x930 [ 10.662992] ? __schedule+0x10cc/0x2b60 [ 10.663017] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 10.663042] ? finish_task_switch.isra.0+0x153/0x700 [ 10.663064] ? __switch_to+0x47/0xf50 [ 10.663090] ? __schedule+0x10cc/0x2b60 [ 10.663113] ? __pfx_read_tsc+0x10/0x10 [ 10.663138] krealloc_large_more_oob+0x1c/0x30 [ 10.663161] kunit_try_run_case+0x1a5/0x480 [ 10.663182] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.663202] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.663227] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.663251] ? __kthread_parkme+0x82/0x180 [ 10.663272] ? preempt_count_sub+0x50/0x80 [ 10.663294] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.663315] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.663339] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.663363] kthread+0x337/0x6f0 [ 10.663382] ? trace_preempt_on+0x20/0xc0 [ 10.663405] ? __pfx_kthread+0x10/0x10 [ 10.663452] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.663475] ? calculate_sigpending+0x7b/0xa0 [ 10.663499] ? __pfx_kthread+0x10/0x10 [ 10.663521] ret_from_fork+0x116/0x1d0 [ 10.663540] ? __pfx_kthread+0x10/0x10 [ 10.663560] ret_from_fork_asm+0x1a/0x30 [ 10.663590] </TASK> [ 10.663600] [ 10.671968] The buggy address belongs to the physical page: [ 10.672248] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103954 [ 10.672575] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.672842] flags: 0x200000000000040(head|node=0|zone=2) [ 10.673175] page_type: f8(unknown) [ 10.673363] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 10.673779] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 10.674067] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 10.674305] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 10.674626] head: 0200000000000002 ffffea00040e5501 00000000ffffffff 00000000ffffffff [ 10.674973] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 10.675474] page dumped because: kasan: bad access detected [ 10.675673] [ 10.675799] Memory state around the buggy address: [ 10.676302] ffff888103955f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.676637] ffff888103956000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.676995] >ffff888103956080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 10.677295] ^ [ 10.677556] ffff888103956100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 10.677991] ffff888103956180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 10.678238] ================================================================== [ 10.526773] ================================================================== [ 10.527192] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 10.527683] Write of size 1 at addr ffff888100a1daf0 by task kunit_try_catch/173 [ 10.528346] [ 10.528459] CPU: 1 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.528504] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.528516] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.528537] Call Trace: [ 10.528549] <TASK> [ 10.528563] dump_stack_lvl+0x73/0xb0 [ 10.528589] print_report+0xd1/0x650 [ 10.528624] ? __virt_addr_valid+0x1db/0x2d0 [ 10.528647] ? krealloc_more_oob_helper+0x7eb/0x930 [ 10.528670] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.528692] ? krealloc_more_oob_helper+0x7eb/0x930 [ 10.528717] kasan_report+0x141/0x180 [ 10.528739] ? krealloc_more_oob_helper+0x7eb/0x930 [ 10.528767] __asan_report_store1_noabort+0x1b/0x30 [ 10.528789] krealloc_more_oob_helper+0x7eb/0x930 [ 10.528812] ? __schedule+0x10cc/0x2b60 [ 10.528835] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 10.528859] ? finish_task_switch.isra.0+0x153/0x700 [ 10.528880] ? __switch_to+0x47/0xf50 [ 10.528905] ? __schedule+0x10cc/0x2b60 [ 10.528928] ? __pfx_read_tsc+0x10/0x10 [ 10.528950] krealloc_more_oob+0x1c/0x30 [ 10.528972] kunit_try_run_case+0x1a5/0x480 [ 10.528993] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.529013] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.529036] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.529060] ? __kthread_parkme+0x82/0x180 [ 10.529080] ? preempt_count_sub+0x50/0x80 [ 10.529102] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.529123] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.529147] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.529171] kthread+0x337/0x6f0 [ 10.529190] ? trace_preempt_on+0x20/0xc0 [ 10.529212] ? __pfx_kthread+0x10/0x10 [ 10.529232] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.529254] ? calculate_sigpending+0x7b/0xa0 [ 10.529277] ? __pfx_kthread+0x10/0x10 [ 10.529298] ret_from_fork+0x116/0x1d0 [ 10.529316] ? __pfx_kthread+0x10/0x10 [ 10.529336] ret_from_fork_asm+0x1a/0x30 [ 10.529366] </TASK> [ 10.529376] [ 10.538051] Allocated by task 173: [ 10.538242] kasan_save_stack+0x45/0x70 [ 10.538420] kasan_save_track+0x18/0x40 [ 10.538641] kasan_save_alloc_info+0x3b/0x50 [ 10.538919] __kasan_krealloc+0x190/0x1f0 [ 10.539091] krealloc_noprof+0xf3/0x340 [ 10.539230] krealloc_more_oob_helper+0x1a9/0x930 [ 10.539395] krealloc_more_oob+0x1c/0x30 [ 10.539574] kunit_try_run_case+0x1a5/0x480 [ 10.539790] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.540050] kthread+0x337/0x6f0 [ 10.540229] ret_from_fork+0x116/0x1d0 [ 10.540585] ret_from_fork_asm+0x1a/0x30 [ 10.540764] [ 10.540862] The buggy address belongs to the object at ffff888100a1da00 [ 10.540862] which belongs to the cache kmalloc-256 of size 256 [ 10.541339] The buggy address is located 5 bytes to the right of [ 10.541339] allocated 235-byte region [ffff888100a1da00, ffff888100a1daeb) [ 10.542131] [ 10.542246] The buggy address belongs to the physical page: [ 10.542442] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100a1c [ 10.542967] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.543268] flags: 0x200000000000040(head|node=0|zone=2) [ 10.543492] page_type: f5(slab) [ 10.543626] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 10.543868] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 10.544205] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 10.544600] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 10.544866] head: 0200000000000001 ffffea0004028701 00000000ffffffff 00000000ffffffff [ 10.545103] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 10.545601] page dumped because: kasan: bad access detected [ 10.546131] [ 10.546243] Memory state around the buggy address: [ 10.546478] ffff888100a1d980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.546970] ffff888100a1da00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.547232] >ffff888100a1da80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 10.547530] ^ [ 10.547896] ffff888100a1db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.548131] ffff888100a1db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.548404] ================================================================== [ 10.678650] ================================================================== [ 10.679046] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 10.679368] Write of size 1 at addr ffff8881039560f0 by task kunit_try_catch/177 [ 10.679710] [ 10.679812] CPU: 0 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.15.0-next-20250529 #1 PREEMPT(voluntary) [ 10.679855] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.679867] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.679886] Call Trace: [ 10.679900] <TASK> [ 10.679914] dump_stack_lvl+0x73/0xb0 [ 10.679938] print_report+0xd1/0x650 [ 10.679960] ? __virt_addr_valid+0x1db/0x2d0 [ 10.679982] ? krealloc_more_oob_helper+0x7eb/0x930 [ 10.680005] ? kasan_addr_to_slab+0x11/0xa0 [ 10.680026] ? krealloc_more_oob_helper+0x7eb/0x930 [ 10.680050] kasan_report+0x141/0x180 [ 10.680073] ? krealloc_more_oob_helper+0x7eb/0x930 [ 10.680101] __asan_report_store1_noabort+0x1b/0x30 [ 10.680122] krealloc_more_oob_helper+0x7eb/0x930 [ 10.680145] ? __schedule+0x10cc/0x2b60 [ 10.680168] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 10.680193] ? finish_task_switch.isra.0+0x153/0x700 [ 10.680215] ? __switch_to+0x47/0xf50 [ 10.680240] ? __schedule+0x10cc/0x2b60 [ 10.680263] ? __pfx_read_tsc+0x10/0x10 [ 10.680286] krealloc_large_more_oob+0x1c/0x30 [ 10.680309] kunit_try_run_case+0x1a5/0x480 [ 10.680330] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.680349] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.680372] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.680396] ? __kthread_parkme+0x82/0x180 [ 10.680416] ? preempt_count_sub+0x50/0x80 [ 10.680439] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.680460] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.680483] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.680507] kthread+0x337/0x6f0 [ 10.680527] ? trace_preempt_on+0x20/0xc0 [ 10.680549] ? __pfx_kthread+0x10/0x10 [ 10.680569] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.680591] ? calculate_sigpending+0x7b/0xa0 [ 10.680791] ? __pfx_kthread+0x10/0x10 [ 10.680822] ret_from_fork+0x116/0x1d0 [ 10.680844] ? __pfx_kthread+0x10/0x10 [ 10.680866] ret_from_fork_asm+0x1a/0x30 [ 10.680898] </TASK> [ 10.680909] [ 10.689477] The buggy address belongs to the physical page: [ 10.689729] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103954 [ 10.690214] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.690522] flags: 0x200000000000040(head|node=0|zone=2) [ 10.690775] page_type: f8(unknown) [ 10.690953] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 10.691189] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 10.691502] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 10.691855] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 10.692349] head: 0200000000000002 ffffea00040e5501 00000000ffffffff 00000000ffffffff [ 10.692683] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 10.692972] page dumped because: kasan: bad access detected [ 10.693268] [ 10.693363] Memory state around the buggy address: [ 10.693523] ffff888103955f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.693831] ffff888103956000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.694320] >ffff888103956080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 10.694649] ^ [ 10.694972] ffff888103956100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 10.695239] ffff888103956180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 10.695559] ==================================================================