Date
July 17, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.455248] ================================================================== [ 15.455337] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.455393] Read of size 64 at addr fff00000c7891984 by task kunit_try_catch/183 [ 15.455451] [ 15.455484] CPU: 0 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.455567] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.455602] Hardware name: linux,dummy-virt (DT) [ 15.455634] Call trace: [ 15.455655] show_stack+0x20/0x38 (C) [ 15.455713] dump_stack_lvl+0x8c/0xd0 [ 15.455766] print_report+0x118/0x5d0 [ 15.455811] kasan_report+0xdc/0x128 [ 15.455856] kasan_check_range+0x100/0x1a8 [ 15.455902] __asan_memmove+0x3c/0x98 [ 15.455952] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.456038] kunit_try_run_case+0x170/0x3f0 [ 15.456441] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.456543] kthread+0x328/0x630 [ 15.456589] ret_from_fork+0x10/0x20 [ 15.456636] [ 15.456654] Allocated by task 183: [ 15.456681] kasan_save_stack+0x3c/0x68 [ 15.456818] kasan_save_track+0x20/0x40 [ 15.456861] kasan_save_alloc_info+0x40/0x58 [ 15.456902] __kasan_kmalloc+0xd4/0xd8 [ 15.457094] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.457380] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 15.457487] kunit_try_run_case+0x170/0x3f0 [ 15.457642] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.457733] kthread+0x328/0x630 [ 15.457853] ret_from_fork+0x10/0x20 [ 15.457954] [ 15.458079] The buggy address belongs to the object at fff00000c7891980 [ 15.458079] which belongs to the cache kmalloc-64 of size 64 [ 15.458373] The buggy address is located 4 bytes inside of [ 15.458373] allocated 64-byte region [fff00000c7891980, fff00000c78919c0) [ 15.458622] [ 15.458712] The buggy address belongs to the physical page: [ 15.458874] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107891 [ 15.459072] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.459158] page_type: f5(slab) [ 15.459249] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 15.459681] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 15.459753] page dumped because: kasan: bad access detected [ 15.459946] [ 15.460079] Memory state around the buggy address: [ 15.460135] fff00000c7891880: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 15.460227] fff00000c7891900: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 15.460495] >fff00000c7891980: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 15.460651] ^ [ 15.460729] fff00000c7891a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.460891] fff00000c7891a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.461065] ==================================================================
[ 13.269380] ================================================================== [ 13.269966] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.270584] Read of size 64 at addr ffff888102a0af84 by task kunit_try_catch/199 [ 13.271085] [ 13.271196] CPU: 0 UID: 0 PID: 199 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.271242] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.271253] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.271275] Call Trace: [ 13.271286] <TASK> [ 13.271302] dump_stack_lvl+0x73/0xb0 [ 13.271336] print_report+0xd1/0x610 [ 13.271359] ? __virt_addr_valid+0x1db/0x2d0 [ 13.271383] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.271424] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.271460] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.271486] kasan_report+0x141/0x180 [ 13.271507] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.271559] kasan_check_range+0x10c/0x1c0 [ 13.271592] __asan_memmove+0x27/0x70 [ 13.271612] kmalloc_memmove_invalid_size+0x16f/0x330 [ 13.271637] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 13.271675] ? __schedule+0x10cc/0x2b60 [ 13.271698] ? __pfx_read_tsc+0x10/0x10 [ 13.271720] ? ktime_get_ts64+0x86/0x230 [ 13.271746] kunit_try_run_case+0x1a5/0x480 [ 13.271781] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.271804] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.271829] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.271863] ? __kthread_parkme+0x82/0x180 [ 13.271884] ? preempt_count_sub+0x50/0x80 [ 13.271908] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.271941] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.271965] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.271991] kthread+0x337/0x6f0 [ 13.272021] ? trace_preempt_on+0x20/0xc0 [ 13.272049] ? __pfx_kthread+0x10/0x10 [ 13.272070] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.272092] ? calculate_sigpending+0x7b/0xa0 [ 13.272118] ? __pfx_kthread+0x10/0x10 [ 13.272139] ret_from_fork+0x116/0x1d0 [ 13.272158] ? __pfx_kthread+0x10/0x10 [ 13.272178] ret_from_fork_asm+0x1a/0x30 [ 13.272209] </TASK> [ 13.272220] [ 13.280749] Allocated by task 199: [ 13.280882] kasan_save_stack+0x45/0x70 [ 13.281030] kasan_save_track+0x18/0x40 [ 13.281225] kasan_save_alloc_info+0x3b/0x50 [ 13.281701] __kasan_kmalloc+0xb7/0xc0 [ 13.281903] __kmalloc_cache_noprof+0x189/0x420 [ 13.282144] kmalloc_memmove_invalid_size+0xac/0x330 [ 13.282427] kunit_try_run_case+0x1a5/0x480 [ 13.282680] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.282922] kthread+0x337/0x6f0 [ 13.283045] ret_from_fork+0x116/0x1d0 [ 13.283179] ret_from_fork_asm+0x1a/0x30 [ 13.283321] [ 13.283420] The buggy address belongs to the object at ffff888102a0af80 [ 13.283420] which belongs to the cache kmalloc-64 of size 64 [ 13.283972] The buggy address is located 4 bytes inside of [ 13.283972] allocated 64-byte region [ffff888102a0af80, ffff888102a0afc0) [ 13.284522] [ 13.284706] The buggy address belongs to the physical page: [ 13.284951] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a0a [ 13.285406] flags: 0x200000000000000(node=0|zone=2) [ 13.285665] page_type: f5(slab) [ 13.285793] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 13.286091] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 13.286727] page dumped because: kasan: bad access detected [ 13.286907] [ 13.286977] Memory state around the buggy address: [ 13.287179] ffff888102a0ae80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 13.287522] ffff888102a0af00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 13.287792] >ffff888102a0af80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 13.288144] ^ [ 13.288652] ffff888102a0b000: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 13.288962] ffff888102a0b080: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 13.289212] ==================================================================