Date
July 5, 2025, 5:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.003376] ================================================================== [ 18.003443] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 18.003495] Read of size 1 at addr fff00000c5e93000 by task kunit_try_catch/140 [ 18.003542] [ 18.003590] CPU: 1 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.003667] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.003692] Hardware name: linux,dummy-virt (DT) [ 18.003738] Call trace: [ 18.003760] show_stack+0x20/0x38 (C) [ 18.003807] dump_stack_lvl+0x8c/0xd0 [ 18.003851] print_report+0x118/0x608 [ 18.003909] kasan_report+0xdc/0x128 [ 18.003953] __asan_report_load1_noabort+0x20/0x30 [ 18.004151] kmalloc_node_oob_right+0x2f4/0x330 [ 18.004200] kunit_try_run_case+0x170/0x3f0 [ 18.004245] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.004430] kthread+0x328/0x630 [ 18.004486] ret_from_fork+0x10/0x20 [ 18.004627] [ 18.004645] Allocated by task 140: [ 18.004672] kasan_save_stack+0x3c/0x68 [ 18.004758] kasan_save_track+0x20/0x40 [ 18.004795] kasan_save_alloc_info+0x40/0x58 [ 18.004938] __kasan_kmalloc+0xd4/0xd8 [ 18.004975] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 18.005014] kmalloc_node_oob_right+0xbc/0x330 [ 18.005050] kunit_try_run_case+0x170/0x3f0 [ 18.005086] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.005127] kthread+0x328/0x630 [ 18.005174] ret_from_fork+0x10/0x20 [ 18.005209] [ 18.005227] The buggy address belongs to the object at fff00000c5e92000 [ 18.005227] which belongs to the cache kmalloc-4k of size 4096 [ 18.005282] The buggy address is located 0 bytes to the right of [ 18.005282] allocated 4096-byte region [fff00000c5e92000, fff00000c5e93000) [ 18.005342] [ 18.005361] The buggy address belongs to the physical page: [ 18.005430] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105e90 [ 18.005581] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 18.005643] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 18.005705] page_type: f5(slab) [ 18.005740] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 18.005789] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 18.005849] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 18.005907] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 18.005954] head: 0bfffe0000000003 ffffc1ffc317a401 00000000ffffffff 00000000ffffffff [ 18.006001] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 18.006042] page dumped because: kasan: bad access detected [ 18.006071] [ 18.006088] Memory state around the buggy address: [ 18.006117] fff00000c5e92f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.006157] fff00000c5e92f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.006197] >fff00000c5e93000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.006233] ^ [ 18.006258] fff00000c5e93080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.006298] fff00000c5e93100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.006333] ==================================================================
[ 10.948906] ================================================================== [ 10.949773] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 10.950518] Read of size 1 at addr ffff888102955000 by task kunit_try_catch/158 [ 10.951175] [ 10.951343] CPU: 1 UID: 0 PID: 158 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 10.951405] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.951417] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.951438] Call Trace: [ 10.951472] <TASK> [ 10.951491] dump_stack_lvl+0x73/0xb0 [ 10.951521] print_report+0xd1/0x650 [ 10.951542] ? __virt_addr_valid+0x1db/0x2d0 [ 10.951574] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.951596] ? kasan_complete_mode_report_info+0x2a/0x200 [ 10.951617] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.951650] kasan_report+0x141/0x180 [ 10.951689] ? kmalloc_node_oob_right+0x369/0x3c0 [ 10.951716] __asan_report_load1_noabort+0x18/0x20 [ 10.951749] kmalloc_node_oob_right+0x369/0x3c0 [ 10.951772] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 10.951797] ? __schedule+0x10cc/0x2b60 [ 10.951830] ? __pfx_read_tsc+0x10/0x10 [ 10.951850] ? ktime_get_ts64+0x86/0x230 [ 10.951874] kunit_try_run_case+0x1a5/0x480 [ 10.951908] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.951928] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.951951] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.951983] ? __kthread_parkme+0x82/0x180 [ 10.952003] ? preempt_count_sub+0x50/0x80 [ 10.952027] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.952049] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.952070] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.952092] kthread+0x337/0x6f0 [ 10.952119] ? trace_preempt_on+0x20/0xc0 [ 10.952142] ? __pfx_kthread+0x10/0x10 [ 10.952162] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.952220] ? calculate_sigpending+0x7b/0xa0 [ 10.952253] ? __pfx_kthread+0x10/0x10 [ 10.952274] ret_from_fork+0x116/0x1d0 [ 10.952292] ? __pfx_kthread+0x10/0x10 [ 10.952311] ret_from_fork_asm+0x1a/0x30 [ 10.952341] </TASK> [ 10.952361] [ 10.964228] Allocated by task 158: [ 10.964586] kasan_save_stack+0x45/0x70 [ 10.965035] kasan_save_track+0x18/0x40 [ 10.965561] kasan_save_alloc_info+0x3b/0x50 [ 10.965874] __kasan_kmalloc+0xb7/0xc0 [ 10.966009] __kmalloc_cache_node_noprof+0x188/0x420 [ 10.966180] kmalloc_node_oob_right+0xab/0x3c0 [ 10.966343] kunit_try_run_case+0x1a5/0x480 [ 10.966507] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.966759] kthread+0x337/0x6f0 [ 10.966881] ret_from_fork+0x116/0x1d0 [ 10.967066] ret_from_fork_asm+0x1a/0x30 [ 10.967288] [ 10.967360] The buggy address belongs to the object at ffff888102954000 [ 10.967360] which belongs to the cache kmalloc-4k of size 4096 [ 10.968954] The buggy address is located 0 bytes to the right of [ 10.968954] allocated 4096-byte region [ffff888102954000, ffff888102955000) [ 10.969348] [ 10.969435] The buggy address belongs to the physical page: [ 10.969687] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102950 [ 10.970102] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.970338] flags: 0x200000000000040(head|node=0|zone=2) [ 10.972168] page_type: f5(slab) [ 10.973054] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.974389] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.975559] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 10.976174] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 10.976755] head: 0200000000000003 ffffea00040a5401 00000000ffffffff 00000000ffffffff [ 10.977589] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 10.978120] page dumped because: kasan: bad access detected [ 10.978320] [ 10.978565] Memory state around the buggy address: [ 10.979048] ffff888102954f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.979505] ffff888102954f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.979817] >ffff888102955000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.980201] ^ [ 10.980445] ffff888102955080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.980706] ffff888102955100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 10.981147] ==================================================================