Date
May 15, 2025, 10:38 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.863372] ================================================================== [ 17.863493] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 17.863545] Write of size 1 at addr fff00000c473daf0 by task kunit_try_catch/156 [ 17.863648] [ 17.863720] CPU: 1 UID: 0 PID: 156 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 17.863803] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.864135] Hardware name: linux,dummy-virt (DT) [ 17.864222] Call trace: [ 17.864253] show_stack+0x20/0x38 (C) [ 17.864306] dump_stack_lvl+0x8c/0xd0 [ 17.864428] print_report+0x118/0x608 [ 17.864518] kasan_report+0xdc/0x128 [ 17.864625] __asan_report_store1_noabort+0x20/0x30 [ 17.864679] krealloc_more_oob_helper+0x5c0/0x678 [ 17.864763] krealloc_more_oob+0x20/0x38 [ 17.865071] kunit_try_run_case+0x170/0x3f0 [ 17.865151] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.865306] kthread+0x328/0x630 [ 17.865358] ret_from_fork+0x10/0x20 [ 17.865415] [ 17.865492] Allocated by task 156: [ 17.865540] kasan_save_stack+0x3c/0x68 [ 17.865629] kasan_save_track+0x20/0x40 [ 17.865665] kasan_save_alloc_info+0x40/0x58 [ 17.865702] __kasan_krealloc+0x118/0x178 [ 17.865916] krealloc_noprof+0x128/0x360 [ 17.865964] krealloc_more_oob_helper+0x168/0x678 [ 17.866209] krealloc_more_oob+0x20/0x38 [ 17.866376] kunit_try_run_case+0x170/0x3f0 [ 17.866518] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.866606] kthread+0x328/0x630 [ 17.866803] ret_from_fork+0x10/0x20 [ 17.866949] [ 17.866971] The buggy address belongs to the object at fff00000c473da00 [ 17.866971] which belongs to the cache kmalloc-256 of size 256 [ 17.867355] The buggy address is located 5 bytes to the right of [ 17.867355] allocated 235-byte region [fff00000c473da00, fff00000c473daeb) [ 17.867493] [ 17.867570] The buggy address belongs to the physical page: [ 17.867686] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10473c [ 17.867782] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.867873] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.868199] page_type: f5(slab) [ 17.868269] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 17.868423] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.868646] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 17.868748] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.869208] head: 0bfffe0000000001 ffffc1ffc311cf01 00000000ffffffff 00000000ffffffff [ 17.869483] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 17.869623] page dumped because: kasan: bad access detected [ 17.869655] [ 17.869818] Memory state around the buggy address: [ 17.869972] fff00000c473d980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.870052] fff00000c473da00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.870110] >fff00000c473da80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 17.870147] ^ [ 17.870243] fff00000c473db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.870609] fff00000c473db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.870694] ================================================================== [ 17.852844] ================================================================== [ 17.852899] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 17.852951] Write of size 1 at addr fff00000c473daeb by task kunit_try_catch/156 [ 17.852999] [ 17.853031] CPU: 1 UID: 0 PID: 156 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 17.853113] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.853139] Hardware name: linux,dummy-virt (DT) [ 17.853733] Call trace: [ 17.854281] show_stack+0x20/0x38 (C) [ 17.854373] dump_stack_lvl+0x8c/0xd0 [ 17.854442] print_report+0x118/0x608 [ 17.854515] kasan_report+0xdc/0x128 [ 17.854595] __asan_report_store1_noabort+0x20/0x30 [ 17.854666] krealloc_more_oob_helper+0x60c/0x678 [ 17.854747] krealloc_more_oob+0x20/0x38 [ 17.855071] kunit_try_run_case+0x170/0x3f0 [ 17.855149] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.855295] kthread+0x328/0x630 [ 17.855379] ret_from_fork+0x10/0x20 [ 17.855751] [ 17.855799] Allocated by task 156: [ 17.855861] kasan_save_stack+0x3c/0x68 [ 17.855924] kasan_save_track+0x20/0x40 [ 17.856059] kasan_save_alloc_info+0x40/0x58 [ 17.856206] __kasan_krealloc+0x118/0x178 [ 17.856340] krealloc_noprof+0x128/0x360 [ 17.856434] krealloc_more_oob_helper+0x168/0x678 [ 17.856743] krealloc_more_oob+0x20/0x38 [ 17.856813] kunit_try_run_case+0x170/0x3f0 [ 17.856885] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.856974] kthread+0x328/0x630 [ 17.857093] ret_from_fork+0x10/0x20 [ 17.857146] [ 17.857176] The buggy address belongs to the object at fff00000c473da00 [ 17.857176] which belongs to the cache kmalloc-256 of size 256 [ 17.857483] The buggy address is located 0 bytes to the right of [ 17.857483] allocated 235-byte region [fff00000c473da00, fff00000c473daeb) [ 17.857917] [ 17.858015] The buggy address belongs to the physical page: [ 17.858180] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10473c [ 17.858238] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.858311] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.858672] page_type: f5(slab) [ 17.858767] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 17.858876] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.859057] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 17.859243] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.859320] head: 0bfffe0000000001 ffffc1ffc311cf01 00000000ffffffff 00000000ffffffff [ 17.859382] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 17.859700] page dumped because: kasan: bad access detected [ 17.859785] [ 17.859923] Memory state around the buggy address: [ 17.860108] fff00000c473d980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.860241] fff00000c473da00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.860323] >fff00000c473da80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 17.860366] ^ [ 17.860760] fff00000c473db00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.860856] fff00000c473db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.860957] ================================================================== [ 17.929018] ================================================================== [ 17.929073] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 17.929141] Write of size 1 at addr fff00000c77560f0 by task kunit_try_catch/160 [ 17.929630] [ 17.929675] CPU: 1 UID: 0 PID: 160 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 17.930108] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.930237] Hardware name: linux,dummy-virt (DT) [ 17.930286] Call trace: [ 17.930308] show_stack+0x20/0x38 (C) [ 17.930608] dump_stack_lvl+0x8c/0xd0 [ 17.930717] print_report+0x118/0x608 [ 17.930886] kasan_report+0xdc/0x128 [ 17.931079] __asan_report_store1_noabort+0x20/0x30 [ 17.931693] krealloc_more_oob_helper+0x5c0/0x678 [ 17.931760] krealloc_large_more_oob+0x20/0x38 [ 17.932220] kunit_try_run_case+0x170/0x3f0 [ 17.932570] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.932651] kthread+0x328/0x630 [ 17.932922] ret_from_fork+0x10/0x20 [ 17.933111] [ 17.933223] The buggy address belongs to the physical page: [ 17.933273] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107754 [ 17.933536] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.933827] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.934204] page_type: f8(unknown) [ 17.934342] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.934548] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.934600] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.934648] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.934695] head: 0bfffe0000000002 ffffc1ffc31dd501 00000000ffffffff 00000000ffffffff [ 17.934750] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 17.934790] page dumped because: kasan: bad access detected [ 17.934820] [ 17.934838] Memory state around the buggy address: [ 17.935029] fff00000c7755f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.935388] fff00000c7756000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.935450] >fff00000c7756080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 17.935574] ^ [ 17.935704] fff00000c7756100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.935788] fff00000c7756180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.935892] ================================================================== [ 17.921767] ================================================================== [ 17.922058] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 17.922115] Write of size 1 at addr fff00000c77560eb by task kunit_try_catch/160 [ 17.922424] [ 17.922591] CPU: 1 UID: 0 PID: 160 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT [ 17.922754] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.922845] Hardware name: linux,dummy-virt (DT) [ 17.922987] Call trace: [ 17.923078] show_stack+0x20/0x38 (C) [ 17.923396] dump_stack_lvl+0x8c/0xd0 [ 17.923448] print_report+0x118/0x608 [ 17.923778] kasan_report+0xdc/0x128 [ 17.923859] __asan_report_store1_noabort+0x20/0x30 [ 17.923993] krealloc_more_oob_helper+0x60c/0x678 [ 17.924173] krealloc_large_more_oob+0x20/0x38 [ 17.924294] kunit_try_run_case+0x170/0x3f0 [ 17.924410] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.924500] kthread+0x328/0x630 [ 17.924855] ret_from_fork+0x10/0x20 [ 17.924939] [ 17.924990] The buggy address belongs to the physical page: [ 17.925148] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107754 [ 17.925240] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.925509] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.925879] page_type: f8(unknown) [ 17.925956] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.926038] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.926227] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.926305] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.926560] head: 0bfffe0000000002 ffffc1ffc31dd501 00000000ffffffff 00000000ffffffff [ 17.926638] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 17.926828] page dumped because: kasan: bad access detected [ 17.927071] [ 17.927212] Memory state around the buggy address: [ 17.927298] fff00000c7755f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.927343] fff00000c7756000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.927755] >fff00000c7756080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 17.927841] ^ [ 17.927915] fff00000c7756100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.927963] fff00000c7756180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.927999] ==================================================================
[ 13.778991] ================================================================== [ 13.779429] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 13.780164] Write of size 1 at addr ffff8881025060eb by task kunit_try_catch/178 [ 13.780502] [ 13.780635] CPU: 1 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 13.781486] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.781518] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.781552] Call Trace: [ 13.781577] <TASK> [ 13.781618] dump_stack_lvl+0x73/0xb0 [ 13.781664] print_report+0xd1/0x650 [ 13.781689] ? __virt_addr_valid+0x1db/0x2d0 [ 13.781714] ? krealloc_more_oob_helper+0x821/0x930 [ 13.781736] ? kasan_addr_to_slab+0x11/0xa0 [ 13.781755] ? krealloc_more_oob_helper+0x821/0x930 [ 13.781777] kasan_report+0x141/0x180 [ 13.781798] ? krealloc_more_oob_helper+0x821/0x930 [ 13.781824] __asan_report_store1_noabort+0x1b/0x30 [ 13.781843] krealloc_more_oob_helper+0x821/0x930 [ 13.781864] ? __schedule+0x10cc/0x2b60 [ 13.781885] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 13.781907] ? finish_task_switch.isra.0+0x153/0x700 [ 13.781928] ? __switch_to+0x47/0xf50 [ 13.781953] ? __schedule+0x10cc/0x2b60 [ 13.781973] ? __pfx_read_tsc+0x10/0x10 [ 13.781996] krealloc_large_more_oob+0x1c/0x30 [ 13.782018] kunit_try_run_case+0x1a5/0x480 [ 13.782040] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.782060] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.782082] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.782102] ? __kthread_parkme+0x82/0x180 [ 13.782123] ? preempt_count_sub+0x50/0x80 [ 13.782145] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.782167] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.782187] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.782208] kthread+0x337/0x6f0 [ 13.782246] ? trace_preempt_on+0x20/0xc0 [ 13.782272] ? __pfx_kthread+0x10/0x10 [ 13.782292] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.782313] ? calculate_sigpending+0x7b/0xa0 [ 13.782349] ? __pfx_kthread+0x10/0x10 [ 13.782374] ret_from_fork+0x116/0x1d0 [ 13.782392] ? __pfx_kthread+0x10/0x10 [ 13.782412] ret_from_fork_asm+0x1a/0x30 [ 13.782443] </TASK> [ 13.782457] [ 13.793783] The buggy address belongs to the physical page: [ 13.794010] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102504 [ 13.794657] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 13.795203] flags: 0x200000000000040(head|node=0|zone=2) [ 13.795799] page_type: f8(unknown) [ 13.796031] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.796601] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.796878] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.797126] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.797785] head: 0200000000000002 ffffea0004094101 00000000ffffffff 00000000ffffffff [ 13.798307] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 13.799002] page dumped because: kasan: bad access detected [ 13.799411] [ 13.799798] Memory state around the buggy address: [ 13.800155] ffff888102505f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.800781] ffff888102506000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.801066] >ffff888102506080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 13.801705] ^ [ 13.802050] ffff888102506100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 13.802300] ffff888102506180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 13.802940] ================================================================== [ 13.804255] ================================================================== [ 13.804917] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 13.805233] Write of size 1 at addr ffff8881025060f0 by task kunit_try_catch/178 [ 13.805897] [ 13.806057] CPU: 1 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 13.806168] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.806191] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.806236] Call Trace: [ 13.806261] <TASK> [ 13.806292] dump_stack_lvl+0x73/0xb0 [ 13.806375] print_report+0xd1/0x650 [ 13.806425] ? __virt_addr_valid+0x1db/0x2d0 [ 13.806546] ? krealloc_more_oob_helper+0x7eb/0x930 [ 13.806634] ? kasan_addr_to_slab+0x11/0xa0 [ 13.806664] ? krealloc_more_oob_helper+0x7eb/0x930 [ 13.806703] kasan_report+0x141/0x180 [ 13.806742] ? krealloc_more_oob_helper+0x7eb/0x930 [ 13.806794] __asan_report_store1_noabort+0x1b/0x30 [ 13.806834] krealloc_more_oob_helper+0x7eb/0x930 [ 13.806876] ? __schedule+0x10cc/0x2b60 [ 13.806921] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 13.806962] ? finish_task_switch.isra.0+0x153/0x700 [ 13.807028] ? __switch_to+0x47/0xf50 [ 13.807077] ? __schedule+0x10cc/0x2b60 [ 13.807117] ? __pfx_read_tsc+0x10/0x10 [ 13.807166] krealloc_large_more_oob+0x1c/0x30 [ 13.807214] kunit_try_run_case+0x1a5/0x480 [ 13.807274] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.807298] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.807322] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.807344] ? __kthread_parkme+0x82/0x180 [ 13.807366] ? preempt_count_sub+0x50/0x80 [ 13.807388] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.807410] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.807432] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.807454] kthread+0x337/0x6f0 [ 13.807484] ? trace_preempt_on+0x20/0xc0 [ 13.807545] ? __pfx_kthread+0x10/0x10 [ 13.807575] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.807623] ? calculate_sigpending+0x7b/0xa0 [ 13.807655] ? __pfx_kthread+0x10/0x10 [ 13.807683] ret_from_fork+0x116/0x1d0 [ 13.807709] ? __pfx_kthread+0x10/0x10 [ 13.807736] ret_from_fork_asm+0x1a/0x30 [ 13.807779] </TASK> [ 13.807797] [ 13.816571] The buggy address belongs to the physical page: [ 13.816790] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102504 [ 13.817070] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 13.817595] flags: 0x200000000000040(head|node=0|zone=2) [ 13.818000] page_type: f8(unknown) [ 13.818315] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.818949] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.819250] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 13.819510] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 13.819761] head: 0200000000000002 ffffea0004094101 00000000ffffffff 00000000ffffffff [ 13.820316] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 13.820810] page dumped because: kasan: bad access detected [ 13.821191] [ 13.821361] Memory state around the buggy address: [ 13.821816] ffff888102505f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.822361] ffff888102506000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.822606] >ffff888102506080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 13.822839] ^ [ 13.823075] ffff888102506100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 13.823459] ffff888102506180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 13.823906] ================================================================== [ 13.553128] ================================================================== [ 13.553605] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 13.554006] Write of size 1 at addr ffff88810033eeeb by task kunit_try_catch/174 [ 13.554954] [ 13.555287] CPU: 0 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 13.555413] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.555436] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.555461] Call Trace: [ 13.555478] <TASK> [ 13.555498] dump_stack_lvl+0x73/0xb0 [ 13.555535] print_report+0xd1/0x650 [ 13.555559] ? __virt_addr_valid+0x1db/0x2d0 [ 13.555583] ? krealloc_more_oob_helper+0x821/0x930 [ 13.555606] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.555628] ? krealloc_more_oob_helper+0x821/0x930 [ 13.555651] kasan_report+0x141/0x180 [ 13.555673] ? krealloc_more_oob_helper+0x821/0x930 [ 13.555701] __asan_report_store1_noabort+0x1b/0x30 [ 13.555721] krealloc_more_oob_helper+0x821/0x930 [ 13.555743] ? __schedule+0x10cc/0x2b60 [ 13.555765] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 13.555789] ? finish_task_switch.isra.0+0x153/0x700 [ 13.555811] ? __switch_to+0x47/0xf50 [ 13.555838] ? __schedule+0x10cc/0x2b60 [ 13.555858] ? __pfx_read_tsc+0x10/0x10 [ 13.555882] krealloc_more_oob+0x1c/0x30 [ 13.555904] kunit_try_run_case+0x1a5/0x480 [ 13.555928] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.555949] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.555971] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.555993] ? __kthread_parkme+0x82/0x180 [ 13.556013] ? preempt_count_sub+0x50/0x80 [ 13.556035] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.556057] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.556079] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.556102] kthread+0x337/0x6f0 [ 13.556121] ? trace_preempt_on+0x20/0xc0 [ 13.556144] ? __pfx_kthread+0x10/0x10 [ 13.556164] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.556184] ? calculate_sigpending+0x7b/0xa0 [ 13.556208] ? __pfx_kthread+0x10/0x10 [ 13.556249] ret_from_fork+0x116/0x1d0 [ 13.556269] ? __pfx_kthread+0x10/0x10 [ 13.556289] ret_from_fork_asm+0x1a/0x30 [ 13.556321] </TASK> [ 13.556333] [ 13.564629] Allocated by task 174: [ 13.564803] kasan_save_stack+0x45/0x70 [ 13.565102] kasan_save_track+0x18/0x40 [ 13.565385] kasan_save_alloc_info+0x3b/0x50 [ 13.565696] __kasan_krealloc+0x190/0x1f0 [ 13.565925] krealloc_noprof+0xf3/0x340 [ 13.566097] krealloc_more_oob_helper+0x1a9/0x930 [ 13.566302] krealloc_more_oob+0x1c/0x30 [ 13.566490] kunit_try_run_case+0x1a5/0x480 [ 13.566781] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.567171] kthread+0x337/0x6f0 [ 13.567454] ret_from_fork+0x116/0x1d0 [ 13.567743] ret_from_fork_asm+0x1a/0x30 [ 13.568050] [ 13.568204] The buggy address belongs to the object at ffff88810033ee00 [ 13.568204] which belongs to the cache kmalloc-256 of size 256 [ 13.568684] The buggy address is located 0 bytes to the right of [ 13.568684] allocated 235-byte region [ffff88810033ee00, ffff88810033eeeb) [ 13.569106] [ 13.569265] The buggy address belongs to the physical page: [ 13.569639] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10033e [ 13.570134] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 13.570649] flags: 0x200000000000040(head|node=0|zone=2) [ 13.570946] page_type: f5(slab) [ 13.571115] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 13.571382] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.571637] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 13.571896] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.572142] head: 0200000000000001 ffffea000400cf81 00000000ffffffff 00000000ffffffff [ 13.572650] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 13.573124] page dumped because: kasan: bad access detected [ 13.573521] [ 13.573671] Memory state around the buggy address: [ 13.574015] ffff88810033ed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.574522] ffff88810033ee00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.574985] >ffff88810033ee80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 13.575337] ^ [ 13.575685] ffff88810033ef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.576011] ffff88810033ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.576259] ================================================================== [ 13.578868] ================================================================== [ 13.579428] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 13.580094] Write of size 1 at addr ffff88810033eef0 by task kunit_try_catch/174 [ 13.580608] [ 13.580807] CPU: 0 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250515 #1 PREEMPT(voluntary) [ 13.580897] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.580918] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.580954] Call Trace: [ 13.580980] <TASK> [ 13.581012] dump_stack_lvl+0x73/0xb0 [ 13.581065] print_report+0xd1/0x650 [ 13.581108] ? __virt_addr_valid+0x1db/0x2d0 [ 13.581150] ? krealloc_more_oob_helper+0x7eb/0x930 [ 13.581195] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.581248] ? krealloc_more_oob_helper+0x7eb/0x930 [ 13.581296] kasan_report+0x141/0x180 [ 13.581341] ? krealloc_more_oob_helper+0x7eb/0x930 [ 13.581395] __asan_report_store1_noabort+0x1b/0x30 [ 13.581437] krealloc_more_oob_helper+0x7eb/0x930 [ 13.581480] ? __schedule+0x10cc/0x2b60 [ 13.581526] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 13.581573] ? finish_task_switch.isra.0+0x153/0x700 [ 13.581615] ? __switch_to+0x47/0xf50 [ 13.581663] ? __schedule+0x10cc/0x2b60 [ 13.581699] ? __pfx_read_tsc+0x10/0x10 [ 13.581741] krealloc_more_oob+0x1c/0x30 [ 13.581779] kunit_try_run_case+0x1a5/0x480 [ 13.581824] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.581864] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.581908] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.581952] ? __kthread_parkme+0x82/0x180 [ 13.581992] ? preempt_count_sub+0x50/0x80 [ 13.582039] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.582079] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.582121] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.582166] kthread+0x337/0x6f0 [ 13.582204] ? trace_preempt_on+0x20/0xc0 [ 13.582264] ? __pfx_kthread+0x10/0x10 [ 13.582307] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.582358] ? calculate_sigpending+0x7b/0xa0 [ 13.582409] ? __pfx_kthread+0x10/0x10 [ 13.582455] ret_from_fork+0x116/0x1d0 [ 13.582701] ? __pfx_kthread+0x10/0x10 [ 13.582753] ret_from_fork_asm+0x1a/0x30 [ 13.582813] </TASK> [ 13.582834] [ 13.592187] Allocated by task 174: [ 13.592395] kasan_save_stack+0x45/0x70 [ 13.592597] kasan_save_track+0x18/0x40 [ 13.592788] kasan_save_alloc_info+0x3b/0x50 [ 13.592980] __kasan_krealloc+0x190/0x1f0 [ 13.593113] krealloc_noprof+0xf3/0x340 [ 13.594462] krealloc_more_oob_helper+0x1a9/0x930 [ 13.595193] krealloc_more_oob+0x1c/0x30 [ 13.595768] kunit_try_run_case+0x1a5/0x480 [ 13.596091] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.596299] kthread+0x337/0x6f0 [ 13.596553] ret_from_fork+0x116/0x1d0 [ 13.596842] ret_from_fork_asm+0x1a/0x30 [ 13.597054] [ 13.597210] The buggy address belongs to the object at ffff88810033ee00 [ 13.597210] which belongs to the cache kmalloc-256 of size 256 [ 13.597656] The buggy address is located 5 bytes to the right of [ 13.597656] allocated 235-byte region [ffff88810033ee00, ffff88810033eeeb) [ 13.598384] [ 13.598499] The buggy address belongs to the physical page: [ 13.598873] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10033e [ 13.599288] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 13.599655] flags: 0x200000000000040(head|node=0|zone=2) [ 13.599956] page_type: f5(slab) [ 13.600177] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 13.600585] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.600853] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 13.601101] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.601525] head: 0200000000000001 ffffea000400cf81 00000000ffffffff 00000000ffffffff [ 13.602039] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 13.602524] page dumped because: kasan: bad access detected [ 13.602740] [ 13.602893] Memory state around the buggy address: [ 13.603162] ffff88810033ed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.603512] ffff88810033ee00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.603924] >ffff88810033ee80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 13.604289] ^ [ 13.604607] ffff88810033ef00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.604940] ffff88810033ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.605270] ==================================================================