Date
June 24, 2025, 12:47 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.455190] ================================================================== [ 23.455339] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 23.455511] Write of size 1 at addr fff00000c19218eb by task kunit_try_catch/158 [ 23.455755] [ 23.455991] CPU: 0 UID: 0 PID: 158 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 23.456366] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.456463] Hardware name: linux,dummy-virt (DT) [ 23.456614] Call trace: [ 23.456695] show_stack+0x20/0x38 (C) [ 23.456821] dump_stack_lvl+0x8c/0xd0 [ 23.456952] print_report+0x118/0x608 [ 23.457940] kasan_report+0xdc/0x128 [ 23.458062] __asan_report_store1_noabort+0x20/0x30 [ 23.458244] krealloc_more_oob_helper+0x60c/0x678 [ 23.458362] krealloc_more_oob+0x20/0x38 [ 23.458509] kunit_try_run_case+0x170/0x3f0 [ 23.458637] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.458767] kthread+0x328/0x630 [ 23.458933] ret_from_fork+0x10/0x20 [ 23.459408] [ 23.460244] Allocated by task 158: [ 23.460673] kasan_save_stack+0x3c/0x68 [ 23.460807] kasan_save_track+0x20/0x40 [ 23.460899] kasan_save_alloc_info+0x40/0x58 [ 23.462139] __kasan_krealloc+0x118/0x178 [ 23.462240] krealloc_noprof+0x128/0x360 [ 23.463468] krealloc_more_oob_helper+0x168/0x678 [ 23.463578] krealloc_more_oob+0x20/0x38 [ 23.464500] kunit_try_run_case+0x170/0x3f0 [ 23.465399] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.465523] kthread+0x328/0x630 [ 23.465609] ret_from_fork+0x10/0x20 [ 23.466725] [ 23.466803] The buggy address belongs to the object at fff00000c1921800 [ 23.466803] which belongs to the cache kmalloc-256 of size 256 [ 23.467353] The buggy address is located 0 bytes to the right of [ 23.467353] allocated 235-byte region [fff00000c1921800, fff00000c19218eb) [ 23.467792] [ 23.467898] The buggy address belongs to the physical page: [ 23.467977] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101920 [ 23.468129] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 23.468256] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 23.468490] page_type: f5(slab) [ 23.468872] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 23.469487] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.469635] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 23.469859] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.470167] head: 0bfffe0000000001 ffffc1ffc3064801 00000000ffffffff 00000000ffffffff [ 23.470825] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 23.471085] page dumped because: kasan: bad access detected [ 23.471800] [ 23.471852] Memory state around the buggy address: [ 23.471926] fff00000c1921780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.472781] fff00000c1921800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.472915] >fff00000c1921880: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 23.473520] ^ [ 23.473638] fff00000c1921900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.473745] fff00000c1921980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.474611] ================================================================== [ 23.625752] ================================================================== [ 23.625840] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 23.625943] Write of size 1 at addr fff00000c77e20f0 by task kunit_try_catch/162 [ 23.626056] [ 23.626117] CPU: 0 UID: 0 PID: 162 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 23.626309] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.626407] Hardware name: linux,dummy-virt (DT) [ 23.626499] Call trace: [ 23.626621] show_stack+0x20/0x38 (C) [ 23.626760] dump_stack_lvl+0x8c/0xd0 [ 23.626889] print_report+0x118/0x608 [ 23.627107] kasan_report+0xdc/0x128 [ 23.627243] __asan_report_store1_noabort+0x20/0x30 [ 23.627474] krealloc_more_oob_helper+0x5c0/0x678 [ 23.627685] krealloc_large_more_oob+0x20/0x38 [ 23.627876] kunit_try_run_case+0x170/0x3f0 [ 23.628000] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.628215] kthread+0x328/0x630 [ 23.628351] ret_from_fork+0x10/0x20 [ 23.628530] [ 23.628620] The buggy address belongs to the physical page: [ 23.628694] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077e0 [ 23.628814] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 23.628947] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 23.629211] page_type: f8(unknown) [ 23.629407] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 23.629679] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 23.629900] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 23.630402] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 23.630545] head: 0bfffe0000000002 ffffc1ffc31df801 00000000ffffffff 00000000ffffffff [ 23.630669] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 23.630841] page dumped because: kasan: bad access detected [ 23.630921] [ 23.631167] Memory state around the buggy address: [ 23.631418] fff00000c77e1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.631666] fff00000c77e2000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.631893] >fff00000c77e2080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 23.632268] ^ [ 23.632376] fff00000c77e2100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 23.632519] fff00000c77e2180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 23.632618] ================================================================== [ 23.617820] ================================================================== [ 23.618013] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x60c/0x678 [ 23.618229] Write of size 1 at addr fff00000c77e20eb by task kunit_try_catch/162 [ 23.618343] [ 23.618430] CPU: 0 UID: 0 PID: 162 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 23.618620] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.618683] Hardware name: linux,dummy-virt (DT) [ 23.618754] Call trace: [ 23.618803] show_stack+0x20/0x38 (C) [ 23.618924] dump_stack_lvl+0x8c/0xd0 [ 23.619046] print_report+0x118/0x608 [ 23.619156] kasan_report+0xdc/0x128 [ 23.619262] __asan_report_store1_noabort+0x20/0x30 [ 23.619395] krealloc_more_oob_helper+0x60c/0x678 [ 23.619514] krealloc_large_more_oob+0x20/0x38 [ 23.619626] kunit_try_run_case+0x170/0x3f0 [ 23.619750] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.619878] kthread+0x328/0x630 [ 23.619993] ret_from_fork+0x10/0x20 [ 23.621830] [ 23.621862] The buggy address belongs to the physical page: [ 23.621902] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1077e0 [ 23.622025] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 23.622179] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 23.622306] page_type: f8(unknown) [ 23.622498] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 23.622629] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 23.622759] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 23.622883] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 23.623013] head: 0bfffe0000000002 ffffc1ffc31df801 00000000ffffffff 00000000ffffffff [ 23.623343] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 23.623605] page dumped because: kasan: bad access detected [ 23.623723] [ 23.623799] Memory state around the buggy address: [ 23.623869] fff00000c77e1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.624051] fff00000c77e2000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.624300] >fff00000c77e2080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 23.624471] ^ [ 23.624575] fff00000c77e2100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 23.624755] fff00000c77e2180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 23.624864] ================================================================== [ 23.477065] ================================================================== [ 23.477171] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x5c0/0x678 [ 23.477515] Write of size 1 at addr fff00000c19218f0 by task kunit_try_catch/158 [ 23.477645] [ 23.477725] CPU: 0 UID: 0 PID: 158 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 23.478019] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.478286] Hardware name: linux,dummy-virt (DT) [ 23.478404] Call trace: [ 23.478474] show_stack+0x20/0x38 (C) [ 23.478739] dump_stack_lvl+0x8c/0xd0 [ 23.478864] print_report+0x118/0x608 [ 23.478987] kasan_report+0xdc/0x128 [ 23.479294] __asan_report_store1_noabort+0x20/0x30 [ 23.479672] krealloc_more_oob_helper+0x5c0/0x678 [ 23.480015] krealloc_more_oob+0x20/0x38 [ 23.480130] kunit_try_run_case+0x170/0x3f0 [ 23.480270] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.480849] kthread+0x328/0x630 [ 23.481068] ret_from_fork+0x10/0x20 [ 23.481198] [ 23.481260] Allocated by task 158: [ 23.481520] kasan_save_stack+0x3c/0x68 [ 23.481706] kasan_save_track+0x20/0x40 [ 23.481820] kasan_save_alloc_info+0x40/0x58 [ 23.482205] __kasan_krealloc+0x118/0x178 [ 23.482301] krealloc_noprof+0x128/0x360 [ 23.482829] krealloc_more_oob_helper+0x168/0x678 [ 23.483159] krealloc_more_oob+0x20/0x38 [ 23.483707] kunit_try_run_case+0x170/0x3f0 [ 23.483877] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.484001] kthread+0x328/0x630 [ 23.484139] ret_from_fork+0x10/0x20 [ 23.484240] [ 23.484294] The buggy address belongs to the object at fff00000c1921800 [ 23.484294] which belongs to the cache kmalloc-256 of size 256 [ 23.484573] The buggy address is located 5 bytes to the right of [ 23.484573] allocated 235-byte region [fff00000c1921800, fff00000c19218eb) [ 23.485436] [ 23.485718] The buggy address belongs to the physical page: [ 23.486020] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101920 [ 23.486279] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 23.486498] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 23.486669] page_type: f5(slab) [ 23.486769] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 23.486892] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.487018] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 23.487137] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.487257] head: 0bfffe0000000001 ffffc1ffc3064801 00000000ffffffff 00000000ffffffff [ 23.487375] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 23.487493] page dumped because: kasan: bad access detected [ 23.487565] [ 23.487605] Memory state around the buggy address: [ 23.487703] fff00000c1921780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.487809] fff00000c1921800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.487914] >fff00000c1921880: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 23.488005] ^ [ 23.488298] fff00000c1921900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.488632] fff00000c1921980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.488973] ==================================================================
[ 11.193498] ================================================================== [ 11.194339] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 11.195392] Write of size 1 at addr ffff888100aaaeeb by task kunit_try_catch/176 [ 11.196419] [ 11.196708] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 11.196811] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.196835] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.196869] Call Trace: [ 11.196928] <TASK> [ 11.197043] dump_stack_lvl+0x73/0xb0 [ 11.197110] print_report+0xd1/0x650 [ 11.197138] ? __virt_addr_valid+0x1db/0x2d0 [ 11.197162] ? krealloc_more_oob_helper+0x821/0x930 [ 11.197181] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.197202] ? krealloc_more_oob_helper+0x821/0x930 [ 11.197221] kasan_report+0x141/0x180 [ 11.197241] ? krealloc_more_oob_helper+0x821/0x930 [ 11.197264] __asan_report_store1_noabort+0x1b/0x30 [ 11.197287] krealloc_more_oob_helper+0x821/0x930 [ 11.197321] ? __schedule+0x10cc/0x2b60 [ 11.197354] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 11.197382] ? finish_task_switch.isra.0+0x153/0x700 [ 11.197414] ? __switch_to+0x5d9/0xf60 [ 11.197442] ? dequeue_task_fair+0x166/0x4e0 [ 11.197474] ? __schedule+0x10cc/0x2b60 [ 11.197503] ? __pfx_read_tsc+0x10/0x10 [ 11.197534] krealloc_more_oob+0x1c/0x30 [ 11.197559] kunit_try_run_case+0x1a5/0x480 [ 11.197593] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.197621] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.197669] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.197701] ? __kthread_parkme+0x82/0x180 [ 11.197731] ? preempt_count_sub+0x50/0x80 [ 11.197762] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.197793] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.197836] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.197857] kthread+0x337/0x6f0 [ 11.197874] ? trace_preempt_on+0x20/0xc0 [ 11.197898] ? __pfx_kthread+0x10/0x10 [ 11.197915] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.197936] ? calculate_sigpending+0x7b/0xa0 [ 11.197972] ? __pfx_kthread+0x10/0x10 [ 11.197990] ret_from_fork+0x41/0x80 [ 11.198010] ? __pfx_kthread+0x10/0x10 [ 11.198028] ret_from_fork_asm+0x1a/0x30 [ 11.198061] </TASK> [ 11.198074] [ 11.212074] Allocated by task 176: [ 11.212325] kasan_save_stack+0x45/0x70 [ 11.212742] kasan_save_track+0x18/0x40 [ 11.213053] kasan_save_alloc_info+0x3b/0x50 [ 11.213276] __kasan_krealloc+0x190/0x1f0 [ 11.213538] krealloc_noprof+0xf3/0x340 [ 11.214465] krealloc_more_oob_helper+0x1a9/0x930 [ 11.214999] krealloc_more_oob+0x1c/0x30 [ 11.215439] kunit_try_run_case+0x1a5/0x480 [ 11.215643] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.215899] kthread+0x337/0x6f0 [ 11.216046] ret_from_fork+0x41/0x80 [ 11.216229] ret_from_fork_asm+0x1a/0x30 [ 11.216963] [ 11.217094] The buggy address belongs to the object at ffff888100aaae00 [ 11.217094] which belongs to the cache kmalloc-256 of size 256 [ 11.218089] The buggy address is located 0 bytes to the right of [ 11.218089] allocated 235-byte region [ffff888100aaae00, ffff888100aaaeeb) [ 11.219579] [ 11.219806] The buggy address belongs to the physical page: [ 11.220191] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100aaa [ 11.220558] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.220897] flags: 0x200000000000040(head|node=0|zone=2) [ 11.221701] page_type: f5(slab) [ 11.221907] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 11.222686] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.223162] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 11.223493] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.223864] head: 0200000000000001 ffffea000402aa81 00000000ffffffff 00000000ffffffff [ 11.224338] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 11.224823] page dumped because: kasan: bad access detected [ 11.225195] [ 11.225328] Memory state around the buggy address: [ 11.225546] ffff888100aaad80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.226743] ffff888100aaae00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.227283] >ffff888100aaae80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 11.228395] ^ [ 11.229013] ffff888100aaaf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.229356] ffff888100aaaf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.229891] ================================================================== [ 11.429564] ================================================================== [ 11.430201] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x821/0x930 [ 11.431213] Write of size 1 at addr ffff8881028620eb by task kunit_try_catch/180 [ 11.431937] [ 11.432513] CPU: 1 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 11.432676] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.432701] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.432743] Call Trace: [ 11.432768] <TASK> [ 11.432801] dump_stack_lvl+0x73/0xb0 [ 11.432857] print_report+0xd1/0x650 [ 11.432887] ? __virt_addr_valid+0x1db/0x2d0 [ 11.432918] ? krealloc_more_oob_helper+0x821/0x930 [ 11.432936] ? kasan_addr_to_slab+0x11/0xa0 [ 11.432955] ? krealloc_more_oob_helper+0x821/0x930 [ 11.432973] kasan_report+0x141/0x180 [ 11.432993] ? krealloc_more_oob_helper+0x821/0x930 [ 11.433016] __asan_report_store1_noabort+0x1b/0x30 [ 11.433035] krealloc_more_oob_helper+0x821/0x930 [ 11.433053] ? __schedule+0x10cc/0x2b60 [ 11.433074] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 11.433093] ? finish_task_switch.isra.0+0x153/0x700 [ 11.433116] ? __switch_to+0x5d9/0xf60 [ 11.433136] ? dequeue_task_fair+0x166/0x4e0 [ 11.433158] ? __schedule+0x10cc/0x2b60 [ 11.433178] ? __pfx_read_tsc+0x10/0x10 [ 11.433199] krealloc_large_more_oob+0x1c/0x30 [ 11.433217] kunit_try_run_case+0x1a5/0x480 [ 11.433241] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.433261] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.433327] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.433373] ? __kthread_parkme+0x82/0x180 [ 11.433407] ? preempt_count_sub+0x50/0x80 [ 11.433439] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.433470] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.433503] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.433532] kthread+0x337/0x6f0 [ 11.433568] ? trace_preempt_on+0x20/0xc0 [ 11.433603] ? __pfx_kthread+0x10/0x10 [ 11.433647] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.433680] ? calculate_sigpending+0x7b/0xa0 [ 11.433731] ? __pfx_kthread+0x10/0x10 [ 11.433763] ret_from_fork+0x41/0x80 [ 11.433784] ? __pfx_kthread+0x10/0x10 [ 11.433801] ret_from_fork_asm+0x1a/0x30 [ 11.433831] </TASK> [ 11.433844] [ 11.446695] The buggy address belongs to the physical page: [ 11.447171] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102860 [ 11.447946] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.448275] flags: 0x200000000000040(head|node=0|zone=2) [ 11.448732] page_type: f8(unknown) [ 11.449199] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.450112] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.450582] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.451137] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.451647] head: 0200000000000002 ffffea00040a1801 00000000ffffffff 00000000ffffffff [ 11.452499] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 11.452877] page dumped because: kasan: bad access detected [ 11.453684] [ 11.453785] Memory state around the buggy address: [ 11.454088] ffff888102861f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.454768] ffff888102862000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.455251] >ffff888102862080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 11.455578] ^ [ 11.456106] ffff888102862100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 11.456665] ffff888102862180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 11.457133] ================================================================== [ 11.230732] ================================================================== [ 11.231037] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 11.231615] Write of size 1 at addr ffff888100aaaef0 by task kunit_try_catch/176 [ 11.232963] [ 11.233275] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 11.233478] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.233501] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.233538] Call Trace: [ 11.233570] <TASK> [ 11.233596] dump_stack_lvl+0x73/0xb0 [ 11.233656] print_report+0xd1/0x650 [ 11.233681] ? __virt_addr_valid+0x1db/0x2d0 [ 11.233702] ? krealloc_more_oob_helper+0x7eb/0x930 [ 11.233720] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.233742] ? krealloc_more_oob_helper+0x7eb/0x930 [ 11.233770] kasan_report+0x141/0x180 [ 11.233790] ? krealloc_more_oob_helper+0x7eb/0x930 [ 11.233812] __asan_report_store1_noabort+0x1b/0x30 [ 11.233831] krealloc_more_oob_helper+0x7eb/0x930 [ 11.233848] ? __schedule+0x10cc/0x2b60 [ 11.233879] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 11.233903] ? finish_task_switch.isra.0+0x153/0x700 [ 11.233926] ? __switch_to+0x5d9/0xf60 [ 11.233956] ? dequeue_task_fair+0x166/0x4e0 [ 11.233982] ? __schedule+0x10cc/0x2b60 [ 11.234003] ? __pfx_read_tsc+0x10/0x10 [ 11.234025] krealloc_more_oob+0x1c/0x30 [ 11.234044] kunit_try_run_case+0x1a5/0x480 [ 11.234069] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.234088] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.234110] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.234131] ? __kthread_parkme+0x82/0x180 [ 11.234150] ? preempt_count_sub+0x50/0x80 [ 11.234172] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.234192] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.234213] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.234233] kthread+0x337/0x6f0 [ 11.234249] ? trace_preempt_on+0x20/0xc0 [ 11.234271] ? __pfx_kthread+0x10/0x10 [ 11.234319] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.234360] ? calculate_sigpending+0x7b/0xa0 [ 11.234391] ? __pfx_kthread+0x10/0x10 [ 11.234417] ret_from_fork+0x41/0x80 [ 11.234445] ? __pfx_kthread+0x10/0x10 [ 11.234469] ret_from_fork_asm+0x1a/0x30 [ 11.234511] </TASK> [ 11.234529] [ 11.246055] Allocated by task 176: [ 11.246456] kasan_save_stack+0x45/0x70 [ 11.246914] kasan_save_track+0x18/0x40 [ 11.247231] kasan_save_alloc_info+0x3b/0x50 [ 11.247579] __kasan_krealloc+0x190/0x1f0 [ 11.247867] krealloc_noprof+0xf3/0x340 [ 11.248126] krealloc_more_oob_helper+0x1a9/0x930 [ 11.248440] krealloc_more_oob+0x1c/0x30 [ 11.248819] kunit_try_run_case+0x1a5/0x480 [ 11.249166] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.249796] kthread+0x337/0x6f0 [ 11.250097] ret_from_fork+0x41/0x80 [ 11.250317] ret_from_fork_asm+0x1a/0x30 [ 11.250665] [ 11.250841] The buggy address belongs to the object at ffff888100aaae00 [ 11.250841] which belongs to the cache kmalloc-256 of size 256 [ 11.251363] The buggy address is located 5 bytes to the right of [ 11.251363] allocated 235-byte region [ffff888100aaae00, ffff888100aaaeeb) [ 11.252422] [ 11.252902] The buggy address belongs to the physical page: [ 11.253529] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100aaa [ 11.254481] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.254989] flags: 0x200000000000040(head|node=0|zone=2) [ 11.255384] page_type: f5(slab) [ 11.255708] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 11.256378] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.257750] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 11.258135] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.258670] head: 0200000000000001 ffffea000402aa81 00000000ffffffff 00000000ffffffff [ 11.259066] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 11.259352] page dumped because: kasan: bad access detected [ 11.260173] [ 11.260278] Memory state around the buggy address: [ 11.260823] ffff888100aaad80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.261779] ffff888100aaae00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.262110] >ffff888100aaae80: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fc fc [ 11.262729] ^ [ 11.262987] ffff888100aaaf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.263149] ffff888100aaaf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.263273] ================================================================== [ 11.458049] ================================================================== [ 11.458328] BUG: KASAN: slab-out-of-bounds in krealloc_more_oob_helper+0x7eb/0x930 [ 11.459430] Write of size 1 at addr ffff8881028620f0 by task kunit_try_catch/180 [ 11.460029] [ 11.460189] CPU: 1 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 11.460265] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.460280] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.460315] Call Trace: [ 11.460354] <TASK> [ 11.460386] dump_stack_lvl+0x73/0xb0 [ 11.460420] print_report+0xd1/0x650 [ 11.460444] ? __virt_addr_valid+0x1db/0x2d0 [ 11.460465] ? krealloc_more_oob_helper+0x7eb/0x930 [ 11.460483] ? kasan_addr_to_slab+0x11/0xa0 [ 11.460502] ? krealloc_more_oob_helper+0x7eb/0x930 [ 11.460520] kasan_report+0x141/0x180 [ 11.460543] ? krealloc_more_oob_helper+0x7eb/0x930 [ 11.460583] __asan_report_store1_noabort+0x1b/0x30 [ 11.461014] krealloc_more_oob_helper+0x7eb/0x930 [ 11.461172] ? __schedule+0x10cc/0x2b60 [ 11.461226] ? __pfx_krealloc_more_oob_helper+0x10/0x10 [ 11.461268] ? finish_task_switch.isra.0+0x153/0x700 [ 11.461306] ? __switch_to+0x5d9/0xf60 [ 11.461342] ? dequeue_task_fair+0x166/0x4e0 [ 11.461379] ? __schedule+0x10cc/0x2b60 [ 11.461411] ? __pfx_read_tsc+0x10/0x10 [ 11.461445] krealloc_large_more_oob+0x1c/0x30 [ 11.461474] kunit_try_run_case+0x1a5/0x480 [ 11.461507] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.461534] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.461566] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.461598] ? __kthread_parkme+0x82/0x180 [ 11.461648] ? preempt_count_sub+0x50/0x80 [ 11.461683] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.461713] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.461747] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.461778] kthread+0x337/0x6f0 [ 11.461804] ? trace_preempt_on+0x20/0xc0 [ 11.461833] ? __pfx_kthread+0x10/0x10 [ 11.461857] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.461889] ? calculate_sigpending+0x7b/0xa0 [ 11.461920] ? __pfx_kthread+0x10/0x10 [ 11.461990] ret_from_fork+0x41/0x80 [ 11.462045] ? __pfx_kthread+0x10/0x10 [ 11.462087] ret_from_fork_asm+0x1a/0x30 [ 11.462166] </TASK> [ 11.462204] [ 11.474964] The buggy address belongs to the physical page: [ 11.475328] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102860 [ 11.476603] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 11.476848] flags: 0x200000000000040(head|node=0|zone=2) [ 11.477218] page_type: f8(unknown) [ 11.477419] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.477790] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.478191] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 11.478505] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 11.479180] head: 0200000000000002 ffffea00040a1801 00000000ffffffff 00000000ffffffff [ 11.479474] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 11.479984] page dumped because: kasan: bad access detected [ 11.480272] [ 11.480404] Memory state around the buggy address: [ 11.481491] ffff888102861f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.481778] ffff888102862000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 11.482180] >ffff888102862080: 00 00 00 00 00 00 00 00 00 00 00 00 00 03 fe fe [ 11.482711] ^ [ 11.483050] ffff888102862100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 11.483611] ffff888102862180: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 11.484045] ==================================================================