Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.661275] ================================================================== [ 22.661974] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 22.662166] Write of size 16 at addr fff00000c76c5269 by task kunit_try_catch/182 [ 22.662304] [ 22.662908] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT [ 22.663137] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.663625] Hardware name: linux,dummy-virt (DT) [ 22.663815] Call trace: [ 22.663908] show_stack+0x20/0x38 (C) [ 22.664307] dump_stack_lvl+0x8c/0xd0 [ 22.664853] print_report+0x118/0x608 [ 22.665298] kasan_report+0xdc/0x128 [ 22.665667] kasan_check_range+0x100/0x1a8 [ 22.666032] __asan_memset+0x34/0x78 [ 22.666345] kmalloc_oob_memset_16+0x150/0x2f8 [ 22.666708] kunit_try_run_case+0x170/0x3f0 [ 22.666942] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.667099] kthread+0x328/0x630 [ 22.667195] ret_from_fork+0x10/0x20 [ 22.667292] [ 22.667589] Allocated by task 182: [ 22.667783] kasan_save_stack+0x3c/0x68 [ 22.668328] kasan_save_track+0x20/0x40 [ 22.668477] kasan_save_alloc_info+0x40/0x58 [ 22.668587] __kasan_kmalloc+0xd4/0xd8 [ 22.668682] __kmalloc_cache_noprof+0x16c/0x3c0 [ 22.669373] kmalloc_oob_memset_16+0xb0/0x2f8 [ 22.669518] kunit_try_run_case+0x170/0x3f0 [ 22.669870] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.670134] kthread+0x328/0x630 [ 22.670833] ret_from_fork+0x10/0x20 [ 22.670966] [ 22.671014] The buggy address belongs to the object at fff00000c76c5200 [ 22.671014] which belongs to the cache kmalloc-128 of size 128 [ 22.671133] The buggy address is located 105 bytes inside of [ 22.671133] allocated 120-byte region [fff00000c76c5200, fff00000c76c5278) [ 22.671581] [ 22.671902] The buggy address belongs to the physical page: [ 22.672457] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076c5 [ 22.672681] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.673201] page_type: f5(slab) [ 22.673331] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 22.673540] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 22.673635] page dumped because: kasan: bad access detected [ 22.673950] [ 22.674170] Memory state around the buggy address: [ 22.674265] fff00000c76c5100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 22.674487] fff00000c76c5180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.675060] >fff00000c76c5200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 22.675237] ^ [ 22.675370] fff00000c76c5280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.675602] fff00000c76c5300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.675879] ==================================================================
[ 13.887458] ================================================================== [ 13.888432] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 13.888875] Write of size 16 at addr ffff888102d90e69 by task kunit_try_catch/198 [ 13.889961] [ 13.890157] CPU: 1 UID: 0 PID: 198 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT(voluntary) [ 13.890269] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.890286] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.890309] Call Trace: [ 13.890334] <TASK> [ 13.890355] dump_stack_lvl+0x73/0xb0 [ 13.890408] print_report+0xd1/0x650 [ 13.890441] ? __virt_addr_valid+0x1db/0x2d0 [ 13.890464] ? kmalloc_oob_memset_16+0x166/0x330 [ 13.890486] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.890508] ? kmalloc_oob_memset_16+0x166/0x330 [ 13.890529] kasan_report+0x141/0x180 [ 13.890551] ? kmalloc_oob_memset_16+0x166/0x330 [ 13.890597] kasan_check_range+0x10c/0x1c0 [ 13.890631] __asan_memset+0x27/0x50 [ 13.890658] kmalloc_oob_memset_16+0x166/0x330 [ 13.890689] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 13.890712] ? __schedule+0x10cc/0x2b30 [ 13.890734] ? __pfx_read_tsc+0x10/0x10 [ 13.890755] ? ktime_get_ts64+0x86/0x230 [ 13.890780] kunit_try_run_case+0x1a5/0x480 [ 13.890807] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.890828] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.890853] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.890875] ? __kthread_parkme+0x82/0x180 [ 13.890899] ? preempt_count_sub+0x50/0x80 [ 13.890926] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.890949] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.890973] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.890995] kthread+0x337/0x6f0 [ 13.891013] ? trace_preempt_on+0x20/0xc0 [ 13.891038] ? __pfx_kthread+0x10/0x10 [ 13.891057] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.891078] ? calculate_sigpending+0x7b/0xa0 [ 13.891100] ? __pfx_kthread+0x10/0x10 [ 13.891119] ret_from_fork+0x41/0x80 [ 13.891153] ? __pfx_kthread+0x10/0x10 [ 13.891174] ret_from_fork_asm+0x1a/0x30 [ 13.891206] </TASK> [ 13.891220] [ 13.902116] Allocated by task 198: [ 13.902501] kasan_save_stack+0x45/0x70 [ 13.903026] kasan_save_track+0x18/0x40 [ 13.903295] kasan_save_alloc_info+0x3b/0x50 [ 13.903459] __kasan_kmalloc+0xb7/0xc0 [ 13.904876] __kmalloc_cache_noprof+0x189/0x420 [ 13.905260] kmalloc_oob_memset_16+0xac/0x330 [ 13.905429] kunit_try_run_case+0x1a5/0x480 [ 13.905999] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.906295] kthread+0x337/0x6f0 [ 13.906955] ret_from_fork+0x41/0x80 [ 13.907153] ret_from_fork_asm+0x1a/0x30 [ 13.907308] [ 13.907393] The buggy address belongs to the object at ffff888102d90e00 [ 13.907393] which belongs to the cache kmalloc-128 of size 128 [ 13.908532] The buggy address is located 105 bytes inside of [ 13.908532] allocated 120-byte region [ffff888102d90e00, ffff888102d90e78) [ 13.909493] [ 13.909739] The buggy address belongs to the physical page: [ 13.909973] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102d90 [ 13.910674] flags: 0x200000000000000(node=0|zone=2) [ 13.910874] page_type: f5(slab) [ 13.911021] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.911274] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.911504] page dumped because: kasan: bad access detected [ 13.911690] [ 13.911775] Memory state around the buggy address: [ 13.911941] ffff888102d90d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.912154] ffff888102d90d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.912367] >ffff888102d90e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.913423] ^ [ 13.913938] ffff888102d90e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.914201] ffff888102d90f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.914445] ==================================================================