Date
Dec. 5, 2024, 2:07 p.m.
Environment | |
---|---|
qemu-arm64 | |
qemu-x86_64 |
[ 28.794488] ================================================================== [ 28.795337] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0x5d0/0x660 [ 28.796261] Read of size 1 at addr fff00000c6397d80 by task kunit_try_catch/125 [ 28.797233] [ 28.797670] CPU: 1 UID: 0 PID: 125 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241205 #1 [ 28.798824] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.799863] Hardware name: linux,dummy-virt (DT) [ 28.800575] Call trace: [ 28.801049] show_stack+0x20/0x38 (C) [ 28.801566] dump_stack_lvl+0x8c/0xd0 [ 28.802251] print_report+0x118/0x5e0 [ 28.802826] kasan_report+0xc8/0x118 [ 28.803377] __asan_report_load1_noabort+0x20/0x30 [ 28.804723] kmalloc_oob_right+0x5d0/0x660 [ 28.805411] kunit_try_run_case+0x14c/0x3d0 [ 28.806073] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.806805] kthread+0x24c/0x2d0 [ 28.807450] ret_from_fork+0x10/0x20 [ 28.807992] [ 28.808357] Allocated by task 125: [ 28.808836] kasan_save_stack+0x3c/0x68 [ 28.810400] kasan_save_track+0x20/0x40 [ 28.810973] kasan_save_alloc_info+0x40/0x58 [ 28.811775] __kasan_kmalloc+0xd4/0xd8 [ 28.812383] __kmalloc_cache_noprof+0x15c/0x3c0 [ 28.813023] kmalloc_oob_right+0xb0/0x660 [ 28.813718] kunit_try_run_case+0x14c/0x3d0 [ 28.814482] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.815704] kthread+0x24c/0x2d0 [ 28.816147] ret_from_fork+0x10/0x20 [ 28.816649] [ 28.817022] The buggy address belongs to the object at fff00000c6397d00 [ 28.817022] which belongs to the cache kmalloc-128 of size 128 [ 28.818408] The buggy address is located 13 bytes to the right of [ 28.818408] allocated 115-byte region [fff00000c6397d00, fff00000c6397d73) [ 28.819835] [ 28.820542] The buggy address belongs to the physical page: [ 28.821254] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106397 [ 28.822307] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 28.823115] page_type: f5(slab) [ 28.824295] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 28.825231] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 28.826115] page dumped because: kasan: bad access detected [ 28.826734] [ 28.827096] Memory state around the buggy address: [ 28.827711] fff00000c6397c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.828964] fff00000c6397d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 28.829794] >fff00000c6397d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.830847] ^ [ 28.831675] fff00000c6397e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.832574] fff00000c6397e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.833524] ================================================================== [ 28.701270] ================================================================== [ 28.702711] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0x5a4/0x660 [ 28.704855] Write of size 1 at addr fff00000c6397d73 by task kunit_try_catch/125 [ 28.705762] [ 28.707551] CPU: 0 UID: 0 PID: 125 Comm: kunit_try_catch Tainted: G N 6.13.0-rc1-next-20241205 #1 [ 28.708952] Tainted: [N]=TEST [ 28.709452] Hardware name: linux,dummy-virt (DT) [ 28.710562] Call trace: [ 28.711255] show_stack+0x20/0x38 (C) [ 28.712295] dump_stack_lvl+0x8c/0xd0 [ 28.712895] print_report+0x118/0x5e0 [ 28.713428] kasan_report+0xc8/0x118 [ 28.714043] __asan_report_store1_noabort+0x20/0x30 [ 28.714770] kmalloc_oob_right+0x5a4/0x660 [ 28.715697] kunit_try_run_case+0x14c/0x3d0 [ 28.716149] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.716920] kthread+0x24c/0x2d0 [ 28.717383] ret_from_fork+0x10/0x20 [ 28.718308] [ 28.718696] Allocated by task 125: [ 28.719367] kasan_save_stack+0x3c/0x68 [ 28.720296] kasan_save_track+0x20/0x40 [ 28.720731] kasan_save_alloc_info+0x40/0x58 [ 28.721318] __kasan_kmalloc+0xd4/0xd8 [ 28.721925] __kmalloc_cache_noprof+0x15c/0x3c0 [ 28.722506] kmalloc_oob_right+0xb0/0x660 [ 28.723160] kunit_try_run_case+0x14c/0x3d0 [ 28.723783] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.725250] kthread+0x24c/0x2d0 [ 28.725742] ret_from_fork+0x10/0x20 [ 28.726398] [ 28.726802] The buggy address belongs to the object at fff00000c6397d00 [ 28.726802] which belongs to the cache kmalloc-128 of size 128 [ 28.728685] The buggy address is located 0 bytes to the right of [ 28.728685] allocated 115-byte region [fff00000c6397d00, fff00000c6397d73) [ 28.730225] [ 28.730705] The buggy address belongs to the physical page: [ 28.732141] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106397 [ 28.733402] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 28.734727] page_type: f5(slab) [ 28.735944] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 28.736868] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 28.737943] page dumped because: kasan: bad access detected [ 28.738677] [ 28.739023] Memory state around the buggy address: [ 28.740359] fff00000c6397c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 28.741292] fff00000c6397c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.742239] >fff00000c6397d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 28.743563] ^ [ 28.744650] fff00000c6397d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.745406] fff00000c6397e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.746338] ================================================================== [ 28.751248] ================================================================== [ 28.752676] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0x538/0x660 [ 28.753530] Write of size 1 at addr fff00000c6397d78 by task kunit_try_catch/125 [ 28.754423] [ 28.754765] CPU: 1 UID: 0 PID: 125 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241205 #1 [ 28.756795] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.757299] Hardware name: linux,dummy-virt (DT) [ 28.757925] Call trace: [ 28.758297] show_stack+0x20/0x38 (C) [ 28.759024] dump_stack_lvl+0x8c/0xd0 [ 28.759667] print_report+0x118/0x5e0 [ 28.760356] kasan_report+0xc8/0x118 [ 28.761295] __asan_report_store1_noabort+0x20/0x30 [ 28.761866] kmalloc_oob_right+0x538/0x660 [ 28.762621] kunit_try_run_case+0x14c/0x3d0 [ 28.763803] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.764497] kthread+0x24c/0x2d0 [ 28.765073] ret_from_fork+0x10/0x20 [ 28.765603] [ 28.765995] Allocated by task 125: [ 28.766542] kasan_save_stack+0x3c/0x68 [ 28.767085] kasan_save_track+0x20/0x40 [ 28.768483] kasan_save_alloc_info+0x40/0x58 [ 28.769323] __kasan_kmalloc+0xd4/0xd8 [ 28.769932] __kmalloc_cache_noprof+0x15c/0x3c0 [ 28.770549] kmalloc_oob_right+0xb0/0x660 [ 28.771145] kunit_try_run_case+0x14c/0x3d0 [ 28.771994] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.773127] kthread+0x24c/0x2d0 [ 28.773685] ret_from_fork+0x10/0x20 [ 28.774282] [ 28.774666] The buggy address belongs to the object at fff00000c6397d00 [ 28.774666] which belongs to the cache kmalloc-128 of size 128 [ 28.776385] The buggy address is located 5 bytes to the right of [ 28.776385] allocated 115-byte region [fff00000c6397d00, fff00000c6397d73) [ 28.777841] [ 28.778635] The buggy address belongs to the physical page: [ 28.779858] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106397 [ 28.781039] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 28.781903] page_type: f5(slab) [ 28.782375] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 28.783772] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 28.784530] page dumped because: kasan: bad access detected [ 28.784863] [ 28.785508] Memory state around the buggy address: [ 28.786150] fff00000c6397c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc [ 28.786979] fff00000c6397c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.788317] >fff00000c6397d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 28.789170] ^ [ 28.790034] fff00000c6397d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.790934] fff00000c6397e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.791972] ==================================================================
[ 26.295904] ================================================================== [ 26.296817] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0x6bf/0x7f0 [ 26.297409] Write of size 1 at addr ffff8881029f9178 by task kunit_try_catch/143 [ 26.298091] [ 26.298300] CPU: 1 UID: 0 PID: 143 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241205 #1 [ 26.299113] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.299474] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.300363] Call Trace: [ 26.300579] <TASK> [ 26.300962] dump_stack_lvl+0x73/0xb0 [ 26.301435] print_report+0xd1/0x640 [ 26.301842] ? __virt_addr_valid+0x1db/0x2d0 [ 26.302393] ? kasan_complete_mode_report_info+0x2a/0x200 [ 26.302952] kasan_report+0x102/0x140 [ 26.303432] ? kmalloc_oob_right+0x6bf/0x7f0 [ 26.304019] ? kmalloc_oob_right+0x6bf/0x7f0 [ 26.304355] __asan_report_store1_noabort+0x1b/0x30 [ 26.304988] kmalloc_oob_right+0x6bf/0x7f0 [ 26.305375] ? __pfx_kmalloc_oob_right+0x10/0x10 [ 26.305796] ? __schedule+0xc70/0x27e0 [ 26.306287] ? __pfx_read_tsc+0x10/0x10 [ 26.306610] ? ktime_get_ts64+0x86/0x230 [ 26.307130] kunit_try_run_case+0x1b3/0x490 [ 26.307524] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.308181] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.308596] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.309081] ? __kthread_parkme+0x82/0x160 [ 26.309526] ? preempt_count_sub+0x50/0x80 [ 26.309971] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.310347] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.311119] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.311644] kthread+0x257/0x310 [ 26.312020] ? __pfx_kthread+0x10/0x10 [ 26.312404] ret_from_fork+0x41/0x80 [ 26.312705] ? __pfx_kthread+0x10/0x10 [ 26.313196] ret_from_fork_asm+0x1a/0x30 [ 26.313750] </TASK> [ 26.314103] [ 26.314334] Allocated by task 143: [ 26.314668] kasan_save_stack+0x3d/0x60 [ 26.315147] kasan_save_track+0x18/0x40 [ 26.315517] kasan_save_alloc_info+0x3b/0x50 [ 26.317014] __kasan_kmalloc+0xb7/0xc0 [ 26.317406] __kmalloc_cache_noprof+0x184/0x410 [ 26.318333] kmalloc_oob_right+0xaa/0x7f0 [ 26.318971] kunit_try_run_case+0x1b3/0x490 [ 26.319560] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.320081] kthread+0x257/0x310 [ 26.320488] ret_from_fork+0x41/0x80 [ 26.321113] ret_from_fork_asm+0x1a/0x30 [ 26.321515] [ 26.321707] The buggy address belongs to the object at ffff8881029f9100 [ 26.321707] which belongs to the cache kmalloc-128 of size 128 [ 26.323408] The buggy address is located 5 bytes to the right of [ 26.323408] allocated 115-byte region [ffff8881029f9100, ffff8881029f9173) [ 26.325129] [ 26.325338] The buggy address belongs to the physical page: [ 26.326275] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f9 [ 26.327386] flags: 0x200000000000000(node=0|zone=2) [ 26.327890] page_type: f5(slab) [ 26.328239] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 26.329344] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 26.330128] page dumped because: kasan: bad access detected [ 26.330352] [ 26.330449] Memory state around the buggy address: [ 26.330648] ffff8881029f9000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.331924] ffff8881029f9080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.332597] >ffff8881029f9100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 26.333226] ^ [ 26.334391] ffff8881029f9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.335442] ffff8881029f9200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.336290] ================================================================== [ 26.337577] ================================================================== [ 26.338815] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0x68c/0x7f0 [ 26.339374] Read of size 1 at addr ffff8881029f9180 by task kunit_try_catch/143 [ 26.339974] [ 26.340269] CPU: 1 UID: 0 PID: 143 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241205 #1 [ 26.341237] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.341623] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.342293] Call Trace: [ 26.342694] <TASK> [ 26.343480] dump_stack_lvl+0x73/0xb0 [ 26.344061] print_report+0xd1/0x640 [ 26.344466] ? __virt_addr_valid+0x1db/0x2d0 [ 26.345217] ? kasan_complete_mode_report_info+0x2a/0x200 [ 26.345598] kasan_report+0x102/0x140 [ 26.346039] ? kmalloc_oob_right+0x68c/0x7f0 [ 26.346451] ? kmalloc_oob_right+0x68c/0x7f0 [ 26.346955] __asan_report_load1_noabort+0x18/0x20 [ 26.347412] kmalloc_oob_right+0x68c/0x7f0 [ 26.348005] ? __pfx_kmalloc_oob_right+0x10/0x10 [ 26.348602] ? __schedule+0xc70/0x27e0 [ 26.349143] ? __pfx_read_tsc+0x10/0x10 [ 26.349634] ? ktime_get_ts64+0x86/0x230 [ 26.350147] kunit_try_run_case+0x1b3/0x490 [ 26.350713] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.351319] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.351815] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.352323] ? __kthread_parkme+0x82/0x160 [ 26.352893] ? preempt_count_sub+0x50/0x80 [ 26.353422] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.353898] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.354554] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.355053] kthread+0x257/0x310 [ 26.355529] ? __pfx_kthread+0x10/0x10 [ 26.355997] ret_from_fork+0x41/0x80 [ 26.356444] ? __pfx_kthread+0x10/0x10 [ 26.356962] ret_from_fork_asm+0x1a/0x30 [ 26.357461] </TASK> [ 26.357866] [ 26.358065] Allocated by task 143: [ 26.358559] kasan_save_stack+0x3d/0x60 [ 26.358978] kasan_save_track+0x18/0x40 [ 26.359374] kasan_save_alloc_info+0x3b/0x50 [ 26.360057] __kasan_kmalloc+0xb7/0xc0 [ 26.360385] __kmalloc_cache_noprof+0x184/0x410 [ 26.360979] kmalloc_oob_right+0xaa/0x7f0 [ 26.361362] kunit_try_run_case+0x1b3/0x490 [ 26.361911] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.362447] kthread+0x257/0x310 [ 26.363055] ret_from_fork+0x41/0x80 [ 26.363302] ret_from_fork_asm+0x1a/0x30 [ 26.364390] [ 26.364573] The buggy address belongs to the object at ffff8881029f9100 [ 26.364573] which belongs to the cache kmalloc-128 of size 128 [ 26.365592] The buggy address is located 13 bytes to the right of [ 26.365592] allocated 115-byte region [ffff8881029f9100, ffff8881029f9173) [ 26.367057] [ 26.367247] The buggy address belongs to the physical page: [ 26.368176] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f9 [ 26.369156] flags: 0x200000000000000(node=0|zone=2) [ 26.369650] page_type: f5(slab) [ 26.370182] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 26.370878] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 26.372106] page dumped because: kasan: bad access detected [ 26.372821] [ 26.373277] Memory state around the buggy address: [ 26.373568] ffff8881029f9080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.374467] ffff8881029f9100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 26.375848] >ffff8881029f9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.376492] ^ [ 26.377166] ffff8881029f9200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.378293] ffff8881029f9280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.379255] ================================================================== [ 26.242379] ================================================================== [ 26.243631] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_right+0x6f2/0x7f0 [ 26.244881] Write of size 1 at addr ffff8881029f9173 by task kunit_try_catch/143 [ 26.245621] [ 26.247332] CPU: 1 UID: 0 PID: 143 Comm: kunit_try_catch Tainted: G N 6.13.0-rc1-next-20241205 #1 [ 26.248637] Tainted: [N]=TEST [ 26.249151] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.250696] Call Trace: [ 26.251233] <TASK> [ 26.252083] dump_stack_lvl+0x73/0xb0 [ 26.252566] print_report+0xd1/0x640 [ 26.253239] ? __virt_addr_valid+0x1db/0x2d0 [ 26.253712] ? kasan_complete_mode_report_info+0x2a/0x200 [ 26.254367] kasan_report+0x102/0x140 [ 26.255101] ? kmalloc_oob_right+0x6f2/0x7f0 [ 26.255754] ? kmalloc_oob_right+0x6f2/0x7f0 [ 26.256220] __asan_report_store1_noabort+0x1b/0x30 [ 26.256457] kmalloc_oob_right+0x6f2/0x7f0 [ 26.256652] ? __pfx_kmalloc_oob_right+0x10/0x10 [ 26.257310] ? __schedule+0xc70/0x27e0 [ 26.258119] ? __pfx_read_tsc+0x10/0x10 [ 26.258862] ? ktime_get_ts64+0x86/0x230 [ 26.259503] kunit_try_run_case+0x1b3/0x490 [ 26.259941] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.260598] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.261128] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.261804] ? __kthread_parkme+0x82/0x160 [ 26.262226] ? preempt_count_sub+0x50/0x80 [ 26.262808] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.263187] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.264042] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.264816] kthread+0x257/0x310 [ 26.265346] ? __pfx_kthread+0x10/0x10 [ 26.265842] ret_from_fork+0x41/0x80 [ 26.266233] ? __pfx_kthread+0x10/0x10 [ 26.266602] ret_from_fork_asm+0x1a/0x30 [ 26.267424] </TASK> [ 26.268138] [ 26.268421] Allocated by task 143: [ 26.269465] kasan_save_stack+0x3d/0x60 [ 26.270106] kasan_save_track+0x18/0x40 [ 26.270497] kasan_save_alloc_info+0x3b/0x50 [ 26.271247] __kasan_kmalloc+0xb7/0xc0 [ 26.271914] __kmalloc_cache_noprof+0x184/0x410 [ 26.272716] kmalloc_oob_right+0xaa/0x7f0 [ 26.273129] kunit_try_run_case+0x1b3/0x490 [ 26.273568] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.274384] kthread+0x257/0x310 [ 26.274721] ret_from_fork+0x41/0x80 [ 26.275257] ret_from_fork_asm+0x1a/0x30 [ 26.276043] [ 26.276335] The buggy address belongs to the object at ffff8881029f9100 [ 26.276335] which belongs to the cache kmalloc-128 of size 128 [ 26.278236] The buggy address is located 0 bytes to the right of [ 26.278236] allocated 115-byte region [ffff8881029f9100, ffff8881029f9173) [ 26.280135] [ 26.280466] The buggy address belongs to the physical page: [ 26.281884] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f9 [ 26.283157] flags: 0x200000000000000(node=0|zone=2) [ 26.284288] page_type: f5(slab) [ 26.285434] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 26.286144] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 26.287039] page dumped because: kasan: bad access detected [ 26.287576] [ 26.287933] Memory state around the buggy address: [ 26.289012] ffff8881029f9000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 26.289722] ffff8881029f9080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.290380] >ffff8881029f9100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc [ 26.291148] ^ [ 26.291876] ffff8881029f9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.292314] ffff8881029f9200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.293120] ==================================================================