Date
July 8, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.493953] ================================================================== [ 19.494013] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.494066] Read of size 64 at addr fff00000c63b0e84 by task kunit_try_catch/182 [ 19.494116] [ 19.494205] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.494291] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.494317] Hardware name: linux,dummy-virt (DT) [ 19.494363] Call trace: [ 19.494387] show_stack+0x20/0x38 (C) [ 19.494436] dump_stack_lvl+0x8c/0xd0 [ 19.494483] print_report+0x118/0x608 [ 19.494530] kasan_report+0xdc/0x128 [ 19.494580] kasan_check_range+0x100/0x1a8 [ 19.494735] __asan_memmove+0x3c/0x98 [ 19.494841] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 19.494998] kunit_try_run_case+0x170/0x3f0 [ 19.495131] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.495609] kthread+0x328/0x630 [ 19.495917] ret_from_fork+0x10/0x20 [ 19.496153] [ 19.496198] Allocated by task 182: [ 19.496290] kasan_save_stack+0x3c/0x68 [ 19.496492] kasan_save_track+0x20/0x40 [ 19.496579] kasan_save_alloc_info+0x40/0x58 [ 19.496621] __kasan_kmalloc+0xd4/0xd8 [ 19.496692] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.496887] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 19.496999] kunit_try_run_case+0x170/0x3f0 [ 19.497103] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.497178] kthread+0x328/0x630 [ 19.497210] ret_from_fork+0x10/0x20 [ 19.497284] [ 19.497411] The buggy address belongs to the object at fff00000c63b0e80 [ 19.497411] which belongs to the cache kmalloc-64 of size 64 [ 19.497635] The buggy address is located 4 bytes inside of [ 19.497635] allocated 64-byte region [fff00000c63b0e80, fff00000c63b0ec0) [ 19.497710] [ 19.497866] The buggy address belongs to the physical page: [ 19.498053] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063b0 [ 19.498312] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.498365] page_type: f5(slab) [ 19.498406] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 19.498618] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 19.498716] page dumped because: kasan: bad access detected [ 19.498869] [ 19.498888] Memory state around the buggy address: [ 19.498926] fff00000c63b0d80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 19.498969] fff00000c63b0e00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 19.499022] >fff00000c63b0e80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 19.499061] ^ [ 19.499256] fff00000c63b0f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.499523] fff00000c63b0f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.499632] ==================================================================
[ 12.701864] ================================================================== [ 12.702366] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.702727] Read of size 64 at addr ffff888102b88184 by task kunit_try_catch/200 [ 12.703038] [ 12.703155] CPU: 0 UID: 0 PID: 200 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.703203] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.703214] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.703235] Call Trace: [ 12.703249] <TASK> [ 12.703266] dump_stack_lvl+0x73/0xb0 [ 12.703299] print_report+0xd1/0x650 [ 12.703322] ? __virt_addr_valid+0x1db/0x2d0 [ 12.703347] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.703372] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.703395] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.703419] kasan_report+0x141/0x180 [ 12.703441] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.703470] kasan_check_range+0x10c/0x1c0 [ 12.703493] __asan_memmove+0x27/0x70 [ 12.703512] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.703537] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.703563] ? __schedule+0x10cc/0x2b60 [ 12.703585] ? __pfx_read_tsc+0x10/0x10 [ 12.704160] ? ktime_get_ts64+0x86/0x230 [ 12.704194] kunit_try_run_case+0x1a5/0x480 [ 12.704221] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.704244] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.704268] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.704292] ? __kthread_parkme+0x82/0x180 [ 12.704314] ? preempt_count_sub+0x50/0x80 [ 12.704338] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.704362] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.704386] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.704411] kthread+0x337/0x6f0 [ 12.704429] ? trace_preempt_on+0x20/0xc0 [ 12.704453] ? __pfx_kthread+0x10/0x10 [ 12.704474] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.704515] ? calculate_sigpending+0x7b/0xa0 [ 12.704540] ? __pfx_kthread+0x10/0x10 [ 12.704561] ret_from_fork+0x116/0x1d0 [ 12.704579] ? __pfx_kthread+0x10/0x10 [ 12.704610] ret_from_fork_asm+0x1a/0x30 [ 12.704643] </TASK> [ 12.704654] [ 12.717153] Allocated by task 200: [ 12.717478] kasan_save_stack+0x45/0x70 [ 12.717880] kasan_save_track+0x18/0x40 [ 12.718330] kasan_save_alloc_info+0x3b/0x50 [ 12.718501] __kasan_kmalloc+0xb7/0xc0 [ 12.718677] __kmalloc_cache_noprof+0x189/0x420 [ 12.719138] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.719567] kunit_try_run_case+0x1a5/0x480 [ 12.720192] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.720736] kthread+0x337/0x6f0 [ 12.720942] ret_from_fork+0x116/0x1d0 [ 12.721742] ret_from_fork_asm+0x1a/0x30 [ 12.722178] [ 12.722658] The buggy address belongs to the object at ffff888102b88180 [ 12.722658] which belongs to the cache kmalloc-64 of size 64 [ 12.723950] The buggy address is located 4 bytes inside of [ 12.723950] allocated 64-byte region [ffff888102b88180, ffff888102b881c0) [ 12.725368] [ 12.725545] The buggy address belongs to the physical page: [ 12.726575] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b88 [ 12.727511] flags: 0x200000000000000(node=0|zone=2) [ 12.727959] page_type: f5(slab) [ 12.728546] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.728804] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.729671] page dumped because: kasan: bad access detected [ 12.730937] [ 12.731098] Memory state around the buggy address: [ 12.731528] ffff888102b88080: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 12.732798] ffff888102b88100: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.733223] >ffff888102b88180: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.733435] ^ [ 12.734621] ffff888102b88200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.735290] ffff888102b88280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.736276] ==================================================================