Date
July 15, 2025, 2:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.995083] ================================================================== [ 17.995143] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 17.995197] Read of size 64 at addr fff00000c59d5b84 by task kunit_try_catch/184 [ 17.995270] [ 17.995302] CPU: 0 UID: 0 PID: 184 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 17.995385] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.995422] Hardware name: linux,dummy-virt (DT) [ 17.995453] Call trace: [ 17.995474] show_stack+0x20/0x38 (C) [ 17.995708] dump_stack_lvl+0x8c/0xd0 [ 17.995759] print_report+0x118/0x5d0 [ 17.995803] kasan_report+0xdc/0x128 [ 17.995858] kasan_check_range+0x100/0x1a8 [ 17.995904] __asan_memmove+0x3c/0x98 [ 17.995948] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 17.996009] kunit_try_run_case+0x170/0x3f0 [ 17.996060] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.996116] kthread+0x328/0x630 [ 17.996160] ret_from_fork+0x10/0x20 [ 17.997084] [ 17.997112] Allocated by task 184: [ 17.997188] kasan_save_stack+0x3c/0x68 [ 17.997481] kasan_save_track+0x20/0x40 [ 17.997627] kasan_save_alloc_info+0x40/0x58 [ 17.997826] __kasan_kmalloc+0xd4/0xd8 [ 17.997962] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.998069] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 17.998186] kunit_try_run_case+0x170/0x3f0 [ 17.998573] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.998720] kthread+0x328/0x630 [ 17.998820] ret_from_fork+0x10/0x20 [ 17.998981] [ 17.999059] The buggy address belongs to the object at fff00000c59d5b80 [ 17.999059] which belongs to the cache kmalloc-64 of size 64 [ 17.999164] The buggy address is located 4 bytes inside of [ 17.999164] allocated 64-byte region [fff00000c59d5b80, fff00000c59d5bc0) [ 17.999302] [ 17.999343] The buggy address belongs to the physical page: [ 17.999410] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059d5 [ 17.999860] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.000009] page_type: f5(slab) [ 18.000109] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 18.000161] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 18.000379] page dumped because: kasan: bad access detected [ 18.000583] [ 18.000609] Memory state around the buggy address: [ 18.000824] fff00000c59d5a80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 18.000937] fff00000c59d5b00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.001036] >fff00000c59d5b80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 18.001255] ^ [ 18.001360] fff00000c59d5c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.001450] fff00000c59d5c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.001572] ==================================================================
[ 11.210749] ================================================================== [ 11.211784] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.212630] Read of size 64 at addr ffff888102f39004 by task kunit_try_catch/201 [ 11.213457] [ 11.213916] CPU: 1 UID: 0 PID: 201 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 11.213965] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.213977] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.213995] Call Trace: [ 11.214007] <TASK> [ 11.214021] dump_stack_lvl+0x73/0xb0 [ 11.214047] print_report+0xd1/0x610 [ 11.214069] ? __virt_addr_valid+0x1db/0x2d0 [ 11.214089] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.214108] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.214130] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.214150] kasan_report+0x141/0x180 [ 11.214171] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.214196] kasan_check_range+0x10c/0x1c0 [ 11.214215] __asan_memmove+0x27/0x70 [ 11.214234] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.214254] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.214275] ? __schedule+0x10cc/0x2b60 [ 11.214297] ? __pfx_read_tsc+0x10/0x10 [ 11.214316] ? ktime_get_ts64+0x86/0x230 [ 11.214339] kunit_try_run_case+0x1a5/0x480 [ 11.214359] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.214376] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.214399] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.214422] ? __kthread_parkme+0x82/0x180 [ 11.214443] ? preempt_count_sub+0x50/0x80 [ 11.214467] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.214487] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.214509] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.214531] kthread+0x337/0x6f0 [ 11.214546] ? trace_preempt_on+0x20/0xc0 [ 11.214568] ? __pfx_kthread+0x10/0x10 [ 11.214585] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.214606] ? calculate_sigpending+0x7b/0xa0 [ 11.214626] ? __pfx_kthread+0x10/0x10 [ 11.214643] ret_from_fork+0x41/0x80 [ 11.214662] ? __pfx_kthread+0x10/0x10 [ 11.214679] ret_from_fork_asm+0x1a/0x30 [ 11.214708] </TASK> [ 11.214718] [ 11.223266] Allocated by task 201: [ 11.223447] kasan_save_stack+0x45/0x70 [ 11.223623] kasan_save_track+0x18/0x40 [ 11.223788] kasan_save_alloc_info+0x3b/0x50 [ 11.224562] __kasan_kmalloc+0xb7/0xc0 [ 11.224829] __kmalloc_cache_noprof+0x189/0x420 [ 11.225067] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.225433] kunit_try_run_case+0x1a5/0x480 [ 11.225641] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.226103] kthread+0x337/0x6f0 [ 11.226329] ret_from_fork+0x41/0x80 [ 11.226472] ret_from_fork_asm+0x1a/0x30 [ 11.226671] [ 11.226953] The buggy address belongs to the object at ffff888102f39000 [ 11.226953] which belongs to the cache kmalloc-64 of size 64 [ 11.227465] The buggy address is located 4 bytes inside of [ 11.227465] allocated 64-byte region [ffff888102f39000, ffff888102f39040) [ 11.228300] [ 11.228394] The buggy address belongs to the physical page: [ 11.228700] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102f39 [ 11.229310] flags: 0x200000000000000(node=0|zone=2) [ 11.229621] page_type: f5(slab) [ 11.229944] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.230266] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.230589] page dumped because: kasan: bad access detected [ 11.231046] [ 11.231124] Memory state around the buggy address: [ 11.231433] ffff888102f38f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.231806] ffff888102f38f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.232204] >ffff888102f39000: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.232553] ^ [ 11.232962] ffff888102f39080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.233348] ffff888102f39100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.233651] ==================================================================