Date
July 18, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.485045] ================================================================== [ 15.485106] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.485157] Read of size 64 at addr fff00000c3f54404 by task kunit_try_catch/182 [ 15.485209] [ 15.485240] CPU: 1 UID: 0 PID: 182 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.485367] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.485426] Hardware name: linux,dummy-virt (DT) [ 15.485978] Call trace: [ 15.486025] show_stack+0x20/0x38 (C) [ 15.486083] dump_stack_lvl+0x8c/0xd0 [ 15.486132] print_report+0x118/0x5d0 [ 15.486351] kasan_report+0xdc/0x128 [ 15.486736] kasan_check_range+0x100/0x1a8 [ 15.486892] __asan_memmove+0x3c/0x98 [ 15.487099] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 15.487177] kunit_try_run_case+0x170/0x3f0 [ 15.487409] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.487743] kthread+0x328/0x630 [ 15.487826] ret_from_fork+0x10/0x20 [ 15.487997] [ 15.488057] Allocated by task 182: [ 15.488258] kasan_save_stack+0x3c/0x68 [ 15.488522] kasan_save_track+0x20/0x40 [ 15.488719] kasan_save_alloc_info+0x40/0x58 [ 15.488952] __kasan_kmalloc+0xd4/0xd8 [ 15.489129] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.489216] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 15.489301] kunit_try_run_case+0x170/0x3f0 [ 15.489441] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.489668] kthread+0x328/0x630 [ 15.489937] ret_from_fork+0x10/0x20 [ 15.490057] [ 15.490154] The buggy address belongs to the object at fff00000c3f54400 [ 15.490154] which belongs to the cache kmalloc-64 of size 64 [ 15.490307] The buggy address is located 4 bytes inside of [ 15.490307] allocated 64-byte region [fff00000c3f54400, fff00000c3f54440) [ 15.490439] [ 15.490497] The buggy address belongs to the physical page: [ 15.490603] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f54 [ 15.490702] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.490904] page_type: f5(slab) [ 15.491114] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 15.491272] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 15.491369] page dumped because: kasan: bad access detected [ 15.491476] [ 15.491519] Memory state around the buggy address: [ 15.491601] fff00000c3f54300: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 15.491718] fff00000c3f54380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 15.491764] >fff00000c3f54400: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 15.491837] ^ [ 15.492061] fff00000c3f54480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.492266] fff00000c3f54500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.492424] ==================================================================
[ 12.398986] ================================================================== [ 12.399850] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.400577] Read of size 64 at addr ffff8881029d4684 by task kunit_try_catch/201 [ 12.400979] [ 12.401075] CPU: 0 UID: 0 PID: 201 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.401120] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.401132] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.401152] Call Trace: [ 12.401164] <TASK> [ 12.401179] dump_stack_lvl+0x73/0xb0 [ 12.401454] print_report+0xd1/0x610 [ 12.401492] ? __virt_addr_valid+0x1db/0x2d0 [ 12.401515] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.401540] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.401561] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.401586] kasan_report+0x141/0x180 [ 12.401607] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.401635] kasan_check_range+0x10c/0x1c0 [ 12.401658] __asan_memmove+0x27/0x70 [ 12.401677] kmalloc_memmove_invalid_size+0x16f/0x330 [ 12.401701] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.401726] ? __schedule+0x10cc/0x2b60 [ 12.401749] ? __pfx_read_tsc+0x10/0x10 [ 12.401769] ? ktime_get_ts64+0x86/0x230 [ 12.401792] kunit_try_run_case+0x1a5/0x480 [ 12.401816] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.401838] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.401861] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.401885] ? __kthread_parkme+0x82/0x180 [ 12.401905] ? preempt_count_sub+0x50/0x80 [ 12.401929] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.401952] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.401975] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.401998] kthread+0x337/0x6f0 [ 12.402016] ? trace_preempt_on+0x20/0xc0 [ 12.402039] ? __pfx_kthread+0x10/0x10 [ 12.402058] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.402079] ? calculate_sigpending+0x7b/0xa0 [ 12.402103] ? __pfx_kthread+0x10/0x10 [ 12.402123] ret_from_fork+0x116/0x1d0 [ 12.402140] ? __pfx_kthread+0x10/0x10 [ 12.402160] ret_from_fork_asm+0x1a/0x30 [ 12.402190] </TASK> [ 12.402199] [ 12.412907] Allocated by task 201: [ 12.413314] kasan_save_stack+0x45/0x70 [ 12.413657] kasan_save_track+0x18/0x40 [ 12.413843] kasan_save_alloc_info+0x3b/0x50 [ 12.414295] __kasan_kmalloc+0xb7/0xc0 [ 12.414445] __kmalloc_cache_noprof+0x189/0x420 [ 12.414681] kmalloc_memmove_invalid_size+0xac/0x330 [ 12.414911] kunit_try_run_case+0x1a5/0x480 [ 12.415626] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.415879] kthread+0x337/0x6f0 [ 12.416020] ret_from_fork+0x116/0x1d0 [ 12.416430] ret_from_fork_asm+0x1a/0x30 [ 12.416642] [ 12.416724] The buggy address belongs to the object at ffff8881029d4680 [ 12.416724] which belongs to the cache kmalloc-64 of size 64 [ 12.417218] The buggy address is located 4 bytes inside of [ 12.417218] allocated 64-byte region [ffff8881029d4680, ffff8881029d46c0) [ 12.417968] [ 12.418066] The buggy address belongs to the physical page: [ 12.418341] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029d4 [ 12.418923] flags: 0x200000000000000(node=0|zone=2) [ 12.419307] page_type: f5(slab) [ 12.419478] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.419943] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.420545] page dumped because: kasan: bad access detected [ 12.420762] [ 12.420958] Memory state around the buggy address: [ 12.421215] ffff8881029d4580: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 12.421547] ffff8881029d4600: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.421841] >ffff8881029d4680: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.422137] ^ [ 12.422374] ffff8881029d4700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.423066] ffff8881029d4780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.423342] ==================================================================