Date
July 10, 2025, 9:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.556465] ================================================================== [ 29.556532] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 29.556590] Read of size 64 at addr fff00000c99b0884 by task kunit_try_catch/213 [ 29.556641] [ 29.556675] CPU: 0 UID: 0 PID: 213 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT [ 29.557748] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.558158] Hardware name: linux,dummy-virt (DT) [ 29.558231] Call trace: [ 29.558253] show_stack+0x20/0x38 (C) [ 29.558309] dump_stack_lvl+0x8c/0xd0 [ 29.558356] print_report+0x118/0x5d0 [ 29.558761] kasan_report+0xdc/0x128 [ 29.559040] kasan_check_range+0x100/0x1a8 [ 29.559507] __asan_memmove+0x3c/0x98 [ 29.559555] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 29.559791] kunit_try_run_case+0x170/0x3f0 [ 29.559849] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.560025] kthread+0x328/0x630 [ 29.560192] ret_from_fork+0x10/0x20 [ 29.560278] [ 29.560430] Allocated by task 213: [ 29.560459] kasan_save_stack+0x3c/0x68 [ 29.560759] kasan_save_track+0x20/0x40 [ 29.560806] kasan_save_alloc_info+0x40/0x58 [ 29.560860] __kasan_kmalloc+0xd4/0xd8 [ 29.560951] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.561414] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 29.561528] kunit_try_run_case+0x170/0x3f0 [ 29.561747] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.561798] kthread+0x328/0x630 [ 29.561832] ret_from_fork+0x10/0x20 [ 29.561869] [ 29.561889] The buggy address belongs to the object at fff00000c99b0880 [ 29.561889] which belongs to the cache kmalloc-64 of size 64 [ 29.562173] The buggy address is located 4 bytes inside of [ 29.562173] allocated 64-byte region [fff00000c99b0880, fff00000c99b08c0) [ 29.562685] [ 29.562710] The buggy address belongs to the physical page: [ 29.562745] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1099b0 [ 29.563348] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.563418] page_type: f5(slab) [ 29.563460] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 29.563516] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 29.563557] page dumped because: kasan: bad access detected [ 29.563590] [ 29.563609] Memory state around the buggy address: [ 29.564544] fff00000c99b0780: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 29.564819] fff00000c99b0800: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 29.564985] >fff00000c99b0880: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 29.565040] ^ [ 29.565078] fff00000c99b0900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.565396] fff00000c99b0980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.565441] ==================================================================
[ 25.259694] ================================================================== [ 25.260269] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.261114] Read of size 64 at addr ffff888105847904 by task kunit_try_catch/230 [ 25.261766] [ 25.262057] CPU: 0 UID: 0 PID: 230 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250710 #1 PREEMPT(voluntary) [ 25.262112] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.262133] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.262156] Call Trace: [ 25.262170] <TASK> [ 25.262190] dump_stack_lvl+0x73/0xb0 [ 25.262222] print_report+0xd1/0x610 [ 25.262247] ? __virt_addr_valid+0x1db/0x2d0 [ 25.262272] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.262295] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.262320] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.262344] kasan_report+0x141/0x180 [ 25.262365] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.262393] kasan_check_range+0x10c/0x1c0 [ 25.262417] __asan_memmove+0x27/0x70 [ 25.262440] kmalloc_memmove_invalid_size+0x16f/0x330 [ 25.262463] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 25.262585] ? __schedule+0x10cc/0x2b60 [ 25.262615] ? __pfx_read_tsc+0x10/0x10 [ 25.262638] ? ktime_get_ts64+0x86/0x230 [ 25.262663] kunit_try_run_case+0x1a5/0x480 [ 25.262685] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.262751] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.262831] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.262860] ? __kthread_parkme+0x82/0x180 [ 25.262881] ? preempt_count_sub+0x50/0x80 [ 25.262905] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.262926] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.262951] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.262976] kthread+0x337/0x6f0 [ 25.262995] ? trace_preempt_on+0x20/0xc0 [ 25.263018] ? __pfx_kthread+0x10/0x10 [ 25.263039] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.263060] ? calculate_sigpending+0x7b/0xa0 [ 25.263084] ? __pfx_kthread+0x10/0x10 [ 25.263105] ret_from_fork+0x116/0x1d0 [ 25.263124] ? __pfx_kthread+0x10/0x10 [ 25.263144] ret_from_fork_asm+0x1a/0x30 [ 25.263175] </TASK> [ 25.263188] [ 25.275225] Allocated by task 230: [ 25.275395] kasan_save_stack+0x45/0x70 [ 25.276034] kasan_save_track+0x18/0x40 [ 25.276300] kasan_save_alloc_info+0x3b/0x50 [ 25.276660] __kasan_kmalloc+0xb7/0xc0 [ 25.276924] __kmalloc_cache_noprof+0x189/0x420 [ 25.277136] kmalloc_memmove_invalid_size+0xac/0x330 [ 25.277351] kunit_try_run_case+0x1a5/0x480 [ 25.277909] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.278205] kthread+0x337/0x6f0 [ 25.278565] ret_from_fork+0x116/0x1d0 [ 25.279078] ret_from_fork_asm+0x1a/0x30 [ 25.279666] [ 25.279839] The buggy address belongs to the object at ffff888105847900 [ 25.279839] which belongs to the cache kmalloc-64 of size 64 [ 25.280323] The buggy address is located 4 bytes inside of [ 25.280323] allocated 64-byte region [ffff888105847900, ffff888105847940) [ 25.281322] [ 25.281562] The buggy address belongs to the physical page: [ 25.282031] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105847 [ 25.282390] flags: 0x200000000000000(node=0|zone=2) [ 25.282783] page_type: f5(slab) [ 25.283093] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 25.283424] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 25.284152] page dumped because: kasan: bad access detected [ 25.284769] [ 25.284867] Memory state around the buggy address: [ 25.285076] ffff888105847800: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 25.285369] ffff888105847880: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 25.285654] >ffff888105847900: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 25.285946] ^ [ 25.286169] ffff888105847980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.286456] ffff888105847a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.287194] ==================================================================