Date
July 3, 2025, 6:13 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.912070] ================================================================== [ 16.912175] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.912238] Read of size 64 at addr fff00000c78c3404 by task kunit_try_catch/182 [ 16.912289] [ 16.912514] CPU: 0 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 16.912634] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.912825] Hardware name: linux,dummy-virt (DT) [ 16.912992] Call trace: [ 16.913061] show_stack+0x20/0x38 (C) [ 16.913118] dump_stack_lvl+0x8c/0xd0 [ 16.913164] print_report+0x118/0x608 [ 16.913209] kasan_report+0xdc/0x128 [ 16.913653] kasan_check_range+0x100/0x1a8 [ 16.913869] __asan_memmove+0x3c/0x98 [ 16.914287] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.914421] kunit_try_run_case+0x170/0x3f0 [ 16.914519] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.914668] kthread+0x328/0x630 [ 16.914768] ret_from_fork+0x10/0x20 [ 16.914845] [ 16.914863] Allocated by task 182: [ 16.915250] kasan_save_stack+0x3c/0x68 [ 16.915584] kasan_save_track+0x20/0x40 [ 16.915808] kasan_save_alloc_info+0x40/0x58 [ 16.915874] __kasan_kmalloc+0xd4/0xd8 [ 16.915913] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.916213] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 16.916379] kunit_try_run_case+0x170/0x3f0 [ 16.916463] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.916511] kthread+0x328/0x630 [ 16.916606] ret_from_fork+0x10/0x20 [ 16.916846] [ 16.916882] The buggy address belongs to the object at fff00000c78c3400 [ 16.916882] which belongs to the cache kmalloc-64 of size 64 [ 16.917040] The buggy address is located 4 bytes inside of [ 16.917040] allocated 64-byte region [fff00000c78c3400, fff00000c78c3440) [ 16.917227] [ 16.917280] The buggy address belongs to the physical page: [ 16.917349] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078c3 [ 16.917507] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.917617] page_type: f5(slab) [ 16.917684] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 16.917814] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 16.917856] page dumped because: kasan: bad access detected [ 16.918099] [ 16.918256] Memory state around the buggy address: [ 16.918371] fff00000c78c3300: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 16.918438] fff00000c78c3380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 16.918494] >fff00000c78c3400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 16.918542] ^ [ 16.918577] fff00000c78c3480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.918628] fff00000c78c3500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.918666] ==================================================================
[ 11.683125] ================================================================== [ 11.683673] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.684006] Read of size 64 at addr ffff88810335cf04 by task kunit_try_catch/200 [ 11.684393] [ 11.684517] CPU: 0 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.684562] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.684574] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.684596] Call Trace: [ 11.684609] <TASK> [ 11.684628] dump_stack_lvl+0x73/0xb0 [ 11.684663] print_report+0xd1/0x650 [ 11.684686] ? __virt_addr_valid+0x1db/0x2d0 [ 11.684711] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.684737] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.684758] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.684782] kasan_report+0x141/0x180 [ 11.684805] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.684833] kasan_check_range+0x10c/0x1c0 [ 11.684856] __asan_memmove+0x27/0x70 [ 11.684876] kmalloc_memmove_invalid_size+0x16f/0x330 [ 11.684900] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 11.684924] ? __schedule+0x10cc/0x2b60 [ 11.684946] ? __pfx_read_tsc+0x10/0x10 [ 11.684967] ? ktime_get_ts64+0x86/0x230 [ 11.684992] kunit_try_run_case+0x1a5/0x480 [ 11.685018] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.685039] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.685062] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.685083] ? __kthread_parkme+0x82/0x180 [ 11.685119] ? preempt_count_sub+0x50/0x80 [ 11.685143] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.685211] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.685235] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.685257] kthread+0x337/0x6f0 [ 11.685278] ? trace_preempt_on+0x20/0xc0 [ 11.685305] ? __pfx_kthread+0x10/0x10 [ 11.685326] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.685347] ? calculate_sigpending+0x7b/0xa0 [ 11.685371] ? __pfx_kthread+0x10/0x10 [ 11.685391] ret_from_fork+0x116/0x1d0 [ 11.685408] ? __pfx_kthread+0x10/0x10 [ 11.685428] ret_from_fork_asm+0x1a/0x30 [ 11.685458] </TASK> [ 11.685470] [ 11.695882] Allocated by task 200: [ 11.696348] kasan_save_stack+0x45/0x70 [ 11.696654] kasan_save_track+0x18/0x40 [ 11.696915] kasan_save_alloc_info+0x3b/0x50 [ 11.697094] __kasan_kmalloc+0xb7/0xc0 [ 11.697408] __kmalloc_cache_noprof+0x189/0x420 [ 11.697630] kmalloc_memmove_invalid_size+0xac/0x330 [ 11.697879] kunit_try_run_case+0x1a5/0x480 [ 11.698089] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.698335] kthread+0x337/0x6f0 [ 11.698908] ret_from_fork+0x116/0x1d0 [ 11.699073] ret_from_fork_asm+0x1a/0x30 [ 11.699319] [ 11.699790] The buggy address belongs to the object at ffff88810335cf00 [ 11.699790] which belongs to the cache kmalloc-64 of size 64 [ 11.700560] The buggy address is located 4 bytes inside of [ 11.700560] allocated 64-byte region [ffff88810335cf00, ffff88810335cf40) [ 11.701059] [ 11.701158] The buggy address belongs to the physical page: [ 11.701706] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10335c [ 11.702138] flags: 0x200000000000000(node=0|zone=2) [ 11.702565] page_type: f5(slab) [ 11.702783] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 11.703213] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 11.703749] page dumped because: kasan: bad access detected [ 11.703998] [ 11.704095] Memory state around the buggy address: [ 11.705177] ffff88810335ce00: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 11.705606] ffff88810335ce80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 11.705906] >ffff88810335cf00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 11.706233] ^ [ 11.707431] ffff88810335cf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.708248] ffff88810335d000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.708772] ==================================================================