Date
June 19, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.659731] ================================================================== [ 30.660892] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 30.661079] Read of size 64 at addr fff00000c7738084 by task kunit_try_catch/193 [ 30.661776] [ 30.662020] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250619 #1 PREEMPT [ 30.662247] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.662302] Hardware name: linux,dummy-virt (DT) [ 30.662771] Call trace: [ 30.663111] show_stack+0x20/0x38 (C) [ 30.663294] dump_stack_lvl+0x8c/0xd0 [ 30.663439] print_report+0x118/0x608 [ 30.663550] kasan_report+0xdc/0x128 [ 30.664064] kasan_check_range+0x100/0x1a8 [ 30.664389] __asan_memmove+0x3c/0x98 [ 30.664525] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 30.665013] kunit_try_run_case+0x170/0x3f0 [ 30.665282] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.665506] kthread+0x328/0x630 [ 30.665610] ret_from_fork+0x10/0x20 [ 30.665727] [ 30.665772] Allocated by task 193: [ 30.665830] kasan_save_stack+0x3c/0x68 [ 30.665941] kasan_save_track+0x20/0x40 [ 30.666352] kasan_save_alloc_info+0x40/0x58 [ 30.666465] __kasan_kmalloc+0xd4/0xd8 [ 30.666694] __kmalloc_cache_noprof+0x16c/0x3c0 [ 30.667017] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 30.667215] kunit_try_run_case+0x170/0x3f0 [ 30.667395] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.667632] kthread+0x328/0x630 [ 30.667741] ret_from_fork+0x10/0x20 [ 30.668194] [ 30.668256] The buggy address belongs to the object at fff00000c7738080 [ 30.668256] which belongs to the cache kmalloc-64 of size 64 [ 30.668426] The buggy address is located 4 bytes inside of [ 30.668426] allocated 64-byte region [fff00000c7738080, fff00000c77380c0) [ 30.668722] [ 30.668870] The buggy address belongs to the physical page: [ 30.669033] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107738 [ 30.669405] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.669633] page_type: f5(slab) [ 30.669754] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 30.669897] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 30.670008] page dumped because: kasan: bad access detected [ 30.670079] [ 30.670116] Memory state around the buggy address: [ 30.670183] fff00000c7737f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.670591] fff00000c7738000: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 30.670846] >fff00000c7738080: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 30.671149] ^ [ 30.671244] fff00000c7738100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.671564] fff00000c7738180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.671678] ==================================================================
[ 27.157171] ================================================================== [ 27.158144] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 27.159344] Read of size 64 at addr ffff888103257804 by task kunit_try_catch/211 [ 27.159813] [ 27.160616] CPU: 0 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250619 #1 PREEMPT(voluntary) [ 27.160697] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.160712] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.160739] Call Trace: [ 27.160758] <TASK> [ 27.160783] dump_stack_lvl+0x73/0xb0 [ 27.160835] print_report+0xd1/0x650 [ 27.160862] ? __virt_addr_valid+0x1db/0x2d0 [ 27.160890] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 27.160925] ? kasan_complete_mode_report_info+0x2a/0x200 [ 27.161056] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 27.161084] kasan_report+0x141/0x180 [ 27.161129] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 27.161161] kasan_check_range+0x10c/0x1c0 [ 27.161186] __asan_memmove+0x27/0x70 [ 27.161212] kmalloc_memmove_invalid_size+0x16f/0x330 [ 27.161238] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 27.161265] ? __schedule+0x10cc/0x2b60 [ 27.161291] ? __pfx_read_tsc+0x10/0x10 [ 27.161315] ? ktime_get_ts64+0x86/0x230 [ 27.161344] kunit_try_run_case+0x1a5/0x480 [ 27.161373] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.161397] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.161422] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.161447] ? __kthread_parkme+0x82/0x180 [ 27.161472] ? preempt_count_sub+0x50/0x80 [ 27.161498] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.161523] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.161548] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.161572] kthread+0x337/0x6f0 [ 27.161593] ? trace_preempt_on+0x20/0xc0 [ 27.161620] ? __pfx_kthread+0x10/0x10 [ 27.161643] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.161665] ? calculate_sigpending+0x7b/0xa0 [ 27.161692] ? __pfx_kthread+0x10/0x10 [ 27.161716] ret_from_fork+0x116/0x1d0 [ 27.161737] ? __pfx_kthread+0x10/0x10 [ 27.161759] ret_from_fork_asm+0x1a/0x30 [ 27.161793] </TASK> [ 27.161806] [ 27.177581] Allocated by task 211: [ 27.178453] kasan_save_stack+0x45/0x70 [ 27.178851] kasan_save_track+0x18/0x40 [ 27.179468] kasan_save_alloc_info+0x3b/0x50 [ 27.179624] __kasan_kmalloc+0xb7/0xc0 [ 27.179719] __kmalloc_cache_noprof+0x189/0x420 [ 27.179833] kmalloc_memmove_invalid_size+0xac/0x330 [ 27.180533] kunit_try_run_case+0x1a5/0x480 [ 27.180868] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.182021] kthread+0x337/0x6f0 [ 27.182262] ret_from_fork+0x116/0x1d0 [ 27.182403] ret_from_fork_asm+0x1a/0x30 [ 27.182546] [ 27.182624] The buggy address belongs to the object at ffff888103257800 [ 27.182624] which belongs to the cache kmalloc-64 of size 64 [ 27.183861] The buggy address is located 4 bytes inside of [ 27.183861] allocated 64-byte region [ffff888103257800, ffff888103257840) [ 27.185439] [ 27.185533] The buggy address belongs to the physical page: [ 27.185660] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103257 [ 27.185834] flags: 0x200000000000000(node=0|zone=2) [ 27.186321] page_type: f5(slab) [ 27.186587] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 27.188504] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 27.189031] page dumped because: kasan: bad access detected [ 27.189454] [ 27.189587] Memory state around the buggy address: [ 27.189911] ffff888103257700: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 27.190343] ffff888103257780: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 27.190753] >ffff888103257800: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 27.191028] ^ [ 27.191770] ffff888103257880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.192461] ffff888103257900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.192865] ==================================================================