Date
July 15, 2025, 2:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.596476] ================================================================== [ 17.596544] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8 [ 17.596598] Write of size 1 at addr fff00000c787a00a by task kunit_try_catch/148 [ 17.596738] [ 17.596776] CPU: 0 UID: 0 PID: 148 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 17.596859] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.596885] Hardware name: linux,dummy-virt (DT) [ 17.596915] Call trace: [ 17.596936] show_stack+0x20/0x38 (C) [ 17.596985] dump_stack_lvl+0x8c/0xd0 [ 17.597031] print_report+0x118/0x5d0 [ 17.597074] kasan_report+0xdc/0x128 [ 17.597116] __asan_report_store1_noabort+0x20/0x30 [ 17.597171] kmalloc_large_oob_right+0x278/0x2b8 [ 17.597800] kunit_try_run_case+0x170/0x3f0 [ 17.598122] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.598344] kthread+0x328/0x630 [ 17.598728] ret_from_fork+0x10/0x20 [ 17.598789] [ 17.599246] The buggy address belongs to the physical page: [ 17.599296] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107878 [ 17.599400] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 17.599576] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 17.599823] page_type: f8(unknown) [ 17.600325] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.600555] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.600658] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000 [ 17.600883] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 17.601137] head: 0bfffe0000000002 ffffc1ffc31e1e01 00000000ffffffff 00000000ffffffff [ 17.601406] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 17.601452] page dumped because: kasan: bad access detected [ 17.601646] [ 17.601755] Memory state around the buggy address: [ 17.601911] fff00000c7879f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.601988] fff00000c7879f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.602052] >fff00000c787a000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.602098] ^ [ 17.602126] fff00000c787a080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.602433] fff00000c787a100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 17.602651] ==================================================================
[ 10.499807] ================================================================== [ 10.500375] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x2e9/0x330 [ 10.500702] Write of size 1 at addr ffff888102aaa00a by task kunit_try_catch/165 [ 10.501889] [ 10.502077] CPU: 0 UID: 0 PID: 165 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 10.502120] Tainted: [B]=BAD_PAGE, [N]=TEST [ 10.502131] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 10.502149] Call Trace: [ 10.502160] <TASK> [ 10.502174] dump_stack_lvl+0x73/0xb0 [ 10.502198] print_report+0xd1/0x610 [ 10.502220] ? __virt_addr_valid+0x1db/0x2d0 [ 10.502241] ? kmalloc_large_oob_right+0x2e9/0x330 [ 10.502262] ? kasan_addr_to_slab+0x11/0xa0 [ 10.502282] ? kmalloc_large_oob_right+0x2e9/0x330 [ 10.502303] kasan_report+0x141/0x180 [ 10.502325] ? kmalloc_large_oob_right+0x2e9/0x330 [ 10.502352] __asan_report_store1_noabort+0x1b/0x30 [ 10.502372] kmalloc_large_oob_right+0x2e9/0x330 [ 10.502393] ? __pfx_kmalloc_large_oob_right+0x10/0x10 [ 10.502415] ? __schedule+0x10cc/0x2b60 [ 10.502438] ? __pfx_read_tsc+0x10/0x10 [ 10.502461] ? ktime_get_ts64+0x86/0x230 [ 10.502485] kunit_try_run_case+0x1a5/0x480 [ 10.502505] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.502523] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 10.502545] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 10.502567] ? __kthread_parkme+0x82/0x180 [ 10.502592] ? preempt_count_sub+0x50/0x80 [ 10.502617] ? __pfx_kunit_try_run_case+0x10/0x10 [ 10.502635] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 10.502657] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 10.502678] kthread+0x337/0x6f0 [ 10.502694] ? trace_preempt_on+0x20/0xc0 [ 10.502716] ? __pfx_kthread+0x10/0x10 [ 10.502733] ? _raw_spin_unlock_irq+0x47/0x80 [ 10.502754] ? calculate_sigpending+0x7b/0xa0 [ 10.502776] ? __pfx_kthread+0x10/0x10 [ 10.502793] ret_from_fork+0x41/0x80 [ 10.502820] ? __pfx_kthread+0x10/0x10 [ 10.502837] ret_from_fork_asm+0x1a/0x30 [ 10.502872] </TASK> [ 10.502893] [ 10.512739] The buggy address belongs to the physical page: [ 10.513063] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102aa8 [ 10.513427] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 10.513787] flags: 0x200000000000040(head|node=0|zone=2) [ 10.514036] page_type: f8(unknown) [ 10.514184] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 10.514445] raw: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 10.514791] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000 [ 10.515566] head: 0000000000000000 0000000000000000 00000001f8000000 0000000000000000 [ 10.516203] head: 0200000000000002 ffffea00040aaa01 00000000ffffffff 00000000ffffffff [ 10.516530] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 10.517232] page dumped because: kasan: bad access detected [ 10.517538] [ 10.517625] Memory state around the buggy address: [ 10.517891] ffff888102aa9f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.518541] ffff888102aa9f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 10.519086] >ffff888102aaa000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 10.519349] ^ [ 10.519532] ffff888102aaa080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 10.520187] ffff888102aaa100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe [ 10.520473] ==================================================================