Date
June 23, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.105684] ================================================================== [ 33.105824] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 33.106045] Read of size 64 at addr fff00000c570b304 by task kunit_try_catch/194 [ 33.106215] [ 33.106357] CPU: 1 UID: 0 PID: 194 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250623 #1 PREEMPT [ 33.106624] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.106703] Hardware name: linux,dummy-virt (DT) [ 33.106829] Call trace: [ 33.107086] show_stack+0x20/0x38 (C) [ 33.107653] dump_stack_lvl+0x8c/0xd0 [ 33.108474] print_report+0x118/0x608 [ 33.108725] kasan_report+0xdc/0x128 [ 33.108908] kasan_check_range+0x100/0x1a8 [ 33.109043] __asan_memmove+0x3c/0x98 [ 33.110195] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 33.110605] kunit_try_run_case+0x170/0x3f0 [ 33.110827] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.111013] kthread+0x328/0x630 [ 33.111232] ret_from_fork+0x10/0x20 [ 33.111389] [ 33.111443] Allocated by task 194: [ 33.111530] kasan_save_stack+0x3c/0x68 [ 33.111826] kasan_save_track+0x20/0x40 [ 33.111927] kasan_save_alloc_info+0x40/0x58 [ 33.112113] __kasan_kmalloc+0xd4/0xd8 [ 33.112328] __kmalloc_cache_noprof+0x16c/0x3c0 [ 33.112617] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 33.112856] kunit_try_run_case+0x170/0x3f0 [ 33.113670] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.114012] kthread+0x328/0x630 [ 33.114124] ret_from_fork+0x10/0x20 [ 33.114614] [ 33.114705] The buggy address belongs to the object at fff00000c570b300 [ 33.114705] which belongs to the cache kmalloc-64 of size 64 [ 33.115233] The buggy address is located 4 bytes inside of [ 33.115233] allocated 64-byte region [fff00000c570b300, fff00000c570b340) [ 33.115856] [ 33.115924] The buggy address belongs to the physical page: [ 33.116150] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10570b [ 33.116374] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.116548] page_type: f5(slab) [ 33.116786] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 33.116934] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 33.117045] page dumped because: kasan: bad access detected [ 33.117131] [ 33.117278] Memory state around the buggy address: [ 33.117356] fff00000c570b200: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 33.117459] fff00000c570b280: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 33.117559] >fff00000c570b300: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 33.117646] ^ [ 33.117733] fff00000c570b380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.117833] fff00000c570b400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.117973] ==================================================================
[ 21.998854] ================================================================== [ 21.999296] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 21.999741] Read of size 64 at addr ffff888102c02f04 by task kunit_try_catch/211 [ 22.000003] [ 22.000371] CPU: 1 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250623 #1 PREEMPT(voluntary) [ 22.000480] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.000503] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.000538] Call Trace: [ 22.000559] <TASK> [ 22.000589] dump_stack_lvl+0x73/0xb0 [ 22.000639] print_report+0xd1/0x650 [ 22.000669] ? __virt_addr_valid+0x1db/0x2d0 [ 22.000706] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 22.000741] ? kasan_complete_mode_report_info+0x2a/0x200 [ 22.000783] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 22.000807] kasan_report+0x141/0x180 [ 22.000825] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 22.000862] kasan_check_range+0x10c/0x1c0 [ 22.000881] __asan_memmove+0x27/0x70 [ 22.000899] kmalloc_memmove_invalid_size+0x16f/0x330 [ 22.000918] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 22.000938] ? __schedule+0x10cc/0x2b60 [ 22.000957] ? __pfx_read_tsc+0x10/0x10 [ 22.000975] ? ktime_get_ts64+0x86/0x230 [ 22.000996] kunit_try_run_case+0x1a5/0x480 [ 22.001017] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.001035] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.001053] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.001074] ? __kthread_parkme+0x82/0x180 [ 22.001103] ? preempt_count_sub+0x50/0x80 [ 22.001134] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.001163] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.001193] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.001216] kthread+0x337/0x6f0 [ 22.001232] ? trace_preempt_on+0x20/0xc0 [ 22.001251] ? __pfx_kthread+0x10/0x10 [ 22.001268] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.001285] ? calculate_sigpending+0x7b/0xa0 [ 22.001304] ? __pfx_kthread+0x10/0x10 [ 22.001321] ret_from_fork+0x116/0x1d0 [ 22.001336] ? __pfx_kthread+0x10/0x10 [ 22.001353] ret_from_fork_asm+0x1a/0x30 [ 22.001396] </TASK> [ 22.001414] [ 22.014156] Allocated by task 211: [ 22.014429] kasan_save_stack+0x45/0x70 [ 22.014805] kasan_save_track+0x18/0x40 [ 22.015148] kasan_save_alloc_info+0x3b/0x50 [ 22.015316] __kasan_kmalloc+0xb7/0xc0 [ 22.015469] __kmalloc_cache_noprof+0x189/0x420 [ 22.015816] kmalloc_memmove_invalid_size+0xac/0x330 [ 22.016034] kunit_try_run_case+0x1a5/0x480 [ 22.016751] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.016982] kthread+0x337/0x6f0 [ 22.017121] ret_from_fork+0x116/0x1d0 [ 22.017266] ret_from_fork_asm+0x1a/0x30 [ 22.017892] [ 22.017987] The buggy address belongs to the object at ffff888102c02f00 [ 22.017987] which belongs to the cache kmalloc-64 of size 64 [ 22.018656] The buggy address is located 4 bytes inside of [ 22.018656] allocated 64-byte region [ffff888102c02f00, ffff888102c02f40) [ 22.019991] [ 22.020247] The buggy address belongs to the physical page: [ 22.020444] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102c02 [ 22.021072] flags: 0x200000000000000(node=0|zone=2) [ 22.021484] page_type: f5(slab) [ 22.021611] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 22.022458] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 22.023023] page dumped because: kasan: bad access detected [ 22.023663] [ 22.023751] Memory state around the buggy address: [ 22.024422] ffff888102c02e00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 22.024824] ffff888102c02e80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 22.025475] >ffff888102c02f00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 22.025881] ^ [ 22.026602] ffff888102c02f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.026896] ffff888102c03000: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 22.027604] ==================================================================