Date
June 17, 2025, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.960482] ================================================================== [ 16.960561] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.960636] Read of size 64 at addr fff00000c505c304 by task kunit_try_catch/191 [ 16.960888] [ 16.960973] CPU: 1 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT [ 16.961153] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.961192] Hardware name: linux,dummy-virt (DT) [ 16.961226] Call trace: [ 16.961249] show_stack+0x20/0x38 (C) [ 16.961562] dump_stack_lvl+0x8c/0xd0 [ 16.961638] print_report+0x118/0x608 [ 16.961685] kasan_report+0xdc/0x128 [ 16.961731] kasan_check_range+0x100/0x1a8 [ 16.961870] __asan_memmove+0x3c/0x98 [ 16.961944] kmalloc_memmove_invalid_size+0x154/0x2e0 [ 16.962055] kunit_try_run_case+0x170/0x3f0 [ 16.962155] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.962564] kthread+0x328/0x630 [ 16.962663] ret_from_fork+0x10/0x20 [ 16.962817] [ 16.962866] Allocated by task 191: [ 16.962995] kasan_save_stack+0x3c/0x68 [ 16.963091] kasan_save_track+0x20/0x40 [ 16.963208] kasan_save_alloc_info+0x40/0x58 [ 16.963248] __kasan_kmalloc+0xd4/0xd8 [ 16.963645] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.963778] kmalloc_memmove_invalid_size+0xb0/0x2e0 [ 16.963846] kunit_try_run_case+0x170/0x3f0 [ 16.963980] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.964069] kthread+0x328/0x630 [ 16.964144] ret_from_fork+0x10/0x20 [ 16.964490] [ 16.964543] The buggy address belongs to the object at fff00000c505c300 [ 16.964543] which belongs to the cache kmalloc-64 of size 64 [ 16.964708] The buggy address is located 4 bytes inside of [ 16.964708] allocated 64-byte region [fff00000c505c300, fff00000c505c340) [ 16.964879] [ 16.964944] The buggy address belongs to the physical page: [ 16.964985] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10505c [ 16.965060] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.965170] page_type: f5(slab) [ 16.965219] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 16.965422] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 16.965679] page dumped because: kasan: bad access detected [ 16.965801] [ 16.965834] Memory state around the buggy address: [ 16.965945] fff00000c505c200: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 16.966102] fff00000c505c280: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 16.966189] >fff00000c505c300: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 16.966234] ^ [ 16.966271] fff00000c505c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.966664] fff00000c505c400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.966739] ==================================================================
[ 18.263009] ================================================================== [ 18.264163] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x16f/0x330 [ 18.265522] Read of size 64 at addr ffff88810339bd84 by task kunit_try_catch/209 [ 18.265994] [ 18.266210] CPU: 0 UID: 0 PID: 209 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250617 #1 PREEMPT(voluntary) [ 18.266476] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.266515] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.266571] Call Trace: [ 18.266607] <TASK> [ 18.266654] dump_stack_lvl+0x73/0xb0 [ 18.266738] print_report+0xd1/0x650 [ 18.266804] ? __virt_addr_valid+0x1db/0x2d0 [ 18.266902] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 18.266978] ? kasan_complete_mode_report_info+0x2a/0x200 [ 18.267017] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 18.267052] kasan_report+0x141/0x180 [ 18.267083] ? kmalloc_memmove_invalid_size+0x16f/0x330 [ 18.267123] kasan_check_range+0x10c/0x1c0 [ 18.267155] __asan_memmove+0x27/0x70 [ 18.267181] kmalloc_memmove_invalid_size+0x16f/0x330 [ 18.267214] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 18.267308] ? __schedule+0x10cc/0x2b60 [ 18.267384] ? __pfx_read_tsc+0x10/0x10 [ 18.267454] ? ktime_get_ts64+0x86/0x230 [ 18.267530] kunit_try_run_case+0x1a5/0x480 [ 18.267601] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.267634] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 18.267663] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 18.267699] ? __kthread_parkme+0x82/0x180 [ 18.267727] ? preempt_count_sub+0x50/0x80 [ 18.267758] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.267789] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.267820] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 18.267881] kthread+0x337/0x6f0 [ 18.267912] ? trace_preempt_on+0x20/0xc0 [ 18.267945] ? __pfx_kthread+0x10/0x10 [ 18.267973] ? _raw_spin_unlock_irq+0x47/0x80 [ 18.268005] ? calculate_sigpending+0x7b/0xa0 [ 18.268038] ? __pfx_kthread+0x10/0x10 [ 18.268066] ret_from_fork+0x116/0x1d0 [ 18.268091] ? __pfx_kthread+0x10/0x10 [ 18.268118] ret_from_fork_asm+0x1a/0x30 [ 18.268160] </TASK> [ 18.268177] [ 18.286376] Allocated by task 209: [ 18.286771] kasan_save_stack+0x45/0x70 [ 18.287188] kasan_save_track+0x18/0x40 [ 18.287870] kasan_save_alloc_info+0x3b/0x50 [ 18.288998] __kasan_kmalloc+0xb7/0xc0 [ 18.289878] __kmalloc_cache_noprof+0x189/0x420 [ 18.290948] kmalloc_memmove_invalid_size+0xac/0x330 [ 18.292256] kunit_try_run_case+0x1a5/0x480 [ 18.293977] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.294759] kthread+0x337/0x6f0 [ 18.296130] ret_from_fork+0x116/0x1d0 [ 18.296606] ret_from_fork_asm+0x1a/0x30 [ 18.296877] [ 18.297018] The buggy address belongs to the object at ffff88810339bd80 [ 18.297018] which belongs to the cache kmalloc-64 of size 64 [ 18.299047] The buggy address is located 4 bytes inside of [ 18.299047] allocated 64-byte region [ffff88810339bd80, ffff88810339bdc0) [ 18.301787] [ 18.301954] The buggy address belongs to the physical page: [ 18.302582] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10339b [ 18.303781] flags: 0x200000000000000(node=0|zone=2) [ 18.304376] page_type: f5(slab) [ 18.304999] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 18.305795] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 18.306751] page dumped because: kasan: bad access detected [ 18.307320] [ 18.307522] Memory state around the buggy address: [ 18.308421] ffff88810339bc80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.309144] ffff88810339bd00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.309744] >ffff88810339bd80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 18.310444] ^ [ 18.310788] ffff88810339be00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.311467] ffff88810339be80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.312298] ==================================================================