Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.772450] ================================================================== [ 22.772647] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 22.772817] Read of size 64 at addr fff00000c76c4404 by task kunit_try_catch/186 [ 22.772951] [ 22.773051] CPU: 1 UID: 0 PID: 186 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT [ 22.773271] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.773339] Hardware name: linux,dummy-virt (DT) [ 22.774871] Call trace: [ 22.775668] show_stack+0x20/0x38 (C) [ 22.775928] dump_stack_lvl+0x8c/0xd0 [ 22.776488] print_report+0x118/0x608 [ 22.776838] kasan_report+0xdc/0x128 [ 22.777020] kasan_check_range+0x100/0x1a8 [ 22.777195] __asan_memmove+0x3c/0x98 [ 22.777356] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 22.777504] kunit_try_run_case+0x170/0x3f0 [ 22.777632] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.778140] kthread+0x328/0x630 [ 22.778253] ret_from_fork+0x10/0x20 [ 22.778778] [ 22.778900] Allocated by task 186: [ 22.778998] kasan_save_stack+0x3c/0x68 [ 22.779114] kasan_save_track+0x20/0x40 [ 22.779189] kasan_save_alloc_info+0x40/0x58 [ 22.779864] __kasan_kmalloc+0xd4/0xd8 [ 22.780080] __kmalloc_cache_noprof+0x16c/0x3c0 [ 22.780765] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 22.781065] kunit_try_run_case+0x170/0x3f0 [ 22.781178] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.781295] kthread+0x328/0x630 [ 22.781389] ret_from_fork+0x10/0x20 [ 22.781499] [ 22.781551] The buggy address belongs to the object at fff00000c76c4400 [ 22.781551] which belongs to the cache kmalloc-64 of size 64 [ 22.783294] The buggy address is located 4 bytes inside of [ 22.783294] allocated 64-byte region [fff00000c76c4400, fff00000c76c4440) [ 22.783457] [ 22.783507] The buggy address belongs to the physical page: [ 22.783578] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076c4 [ 22.783706] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.788138] page_type: f5(slab) [ 22.789523] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 22.790807] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 22.790932] page dumped because: kasan: bad access detected [ 22.791015] [ 22.791058] Memory state around the buggy address: [ 22.791129] fff00000c76c4300: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 22.793049] fff00000c76c4380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 22.793165] >fff00000c76c4400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 22.793252] ^ [ 22.793331] fff00000c76c4480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.793443] fff00000c76c4500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.795415] ==================================================================
[ 13.958444] ================================================================== [ 13.958951] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.959514] Read of size 64 at addr ffff888102d9ae84 by task kunit_try_catch/202 [ 13.959941] [ 13.960165] CPU: 1 UID: 0 PID: 202 Comm: kunit_try_catch Tainted: G B N 6.15.2-rc1 #1 PREEMPT(voluntary) [ 13.960256] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.960272] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.960295] Call Trace: [ 13.960311] <TASK> [ 13.960333] dump_stack_lvl+0x73/0xb0 [ 13.960368] print_report+0xd1/0x650 [ 13.960393] ? __virt_addr_valid+0x1db/0x2d0 [ 13.960413] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.960435] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.960456] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.960479] kasan_report+0x141/0x180 [ 13.960499] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.960527] kasan_check_range+0x10c/0x1c0 [ 13.960545] __asan_memmove+0x27/0x70 [ 13.960588] kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.960624] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 13.960663] ? __schedule+0x10cc/0x2b30 [ 13.960702] ? __pfx_read_tsc+0x10/0x10 [ 13.960737] ? ktime_get_ts64+0x86/0x230 [ 13.960783] kunit_try_run_case+0x1a5/0x480 [ 13.960831] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.960899] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.960937] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.960974] ? __kthread_parkme+0x82/0x180 [ 13.961013] ? preempt_count_sub+0x50/0x80 [ 13.961061] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.961107] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.961153] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.961192] kthread+0x337/0x6f0 [ 13.961221] ? trace_preempt_on+0x20/0xc0 [ 13.961263] ? __pfx_kthread+0x10/0x10 [ 13.961297] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.961352] ? calculate_sigpending+0x7b/0xa0 [ 13.961393] ? __pfx_kthread+0x10/0x10 [ 13.961435] ret_from_fork+0x41/0x80 [ 13.961469] ? __pfx_kthread+0x10/0x10 [ 13.961498] ret_from_fork_asm+0x1a/0x30 [ 13.961551] </TASK> [ 13.961587] [ 13.973038] Allocated by task 202: [ 13.973375] kasan_save_stack+0x45/0x70 [ 13.973645] kasan_save_track+0x18/0x40 [ 13.973937] kasan_save_alloc_info+0x3b/0x50 [ 13.974259] __kasan_kmalloc+0xb7/0xc0 [ 13.974509] __kmalloc_cache_noprof+0x189/0x420 [ 13.975097] kmalloc_memmove_invalid_size+0xac/0x330 [ 13.975660] kunit_try_run_case+0x1a5/0x480 [ 13.976128] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.976618] kthread+0x337/0x6f0 [ 13.976930] ret_from_fork+0x41/0x80 [ 13.977418] ret_from_fork_asm+0x1a/0x30 [ 13.977846] [ 13.977963] The buggy address belongs to the object at ffff888102d9ae80 [ 13.977963] which belongs to the cache kmalloc-64 of size 64 [ 13.978986] The buggy address is located 4 bytes inside of [ 13.978986] allocated 64-byte region [ffff888102d9ae80, ffff888102d9aec0) [ 13.979606] [ 13.979960] The buggy address belongs to the physical page: [ 13.980162] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102d9a [ 13.980396] flags: 0x200000000000000(node=0|zone=2) [ 13.980575] page_type: f5(slab) [ 13.980730] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 13.980991] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 13.982093] page dumped because: kasan: bad access detected [ 13.982363] [ 13.982457] Memory state around the buggy address: [ 13.983066] ffff888102d9ad80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 13.983326] ffff888102d9ae00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 13.983533] >ffff888102d9ae80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 13.984433] ^ [ 13.984803] ffff888102d9af00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.985277] ffff888102d9af80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.985581] ==================================================================