Date
July 22, 2025, 5:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.572889] ================================================================== [ 32.573124] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 32.573232] Read of size 1 at addr ffff800080a37b4a by task kunit_try_catch/284 [ 32.573356] [ 32.573413] CPU: 1 UID: 0 PID: 284 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250722 #1 PREEMPT [ 32.573523] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 32.573557] Hardware name: linux,dummy-virt (DT) [ 32.573589] Call trace: [ 32.573616] show_stack+0x20/0x38 (C) [ 32.573668] dump_stack_lvl+0x8c/0xd0 [ 32.573717] print_report+0x310/0x5e8 [ 32.573942] kasan_report+0xdc/0x128 [ 32.574022] __asan_report_load1_noabort+0x20/0x30 [ 32.574339] kasan_alloca_oob_right+0x2dc/0x340 [ 32.574438] kunit_try_run_case+0x170/0x3f0 [ 32.574594] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.574704] kthread+0x328/0x630 [ 32.575105] ret_from_fork+0x10/0x20 [ 32.575313] [ 32.575387] The buggy address belongs to stack of task kunit_try_catch/284 [ 32.575473] [ 32.575576] The buggy address belongs to a 8-page vmalloc region starting at 0xffff800080a30000 allocated at kernel_clone+0x150/0x7b0 [ 32.575972] The buggy address belongs to the physical page: [ 32.576106] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xfff00000c95f10c8 pfn:0x1095f1 [ 32.576233] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.576298] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 32.576398] raw: fff00000c95f10c8 0000000000000000 00000001ffffffff 0000000000000000 [ 32.576452] page dumped because: kasan: bad access detected [ 32.576488] [ 32.576508] Memory state around the buggy address: [ 32.576551] ffff800080a37a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.576598] ffff800080a37a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.576640] >ffff800080a37b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 32.576679] ^ [ 32.576726] ffff800080a37b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 32.576779] ffff800080a37c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 32.576840] ==================================================================
[ 26.941381] ================================================================== [ 26.941885] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 26.942418] Read of size 1 at addr ffff8881062d7c4a by task kunit_try_catch/301 [ 26.942947] [ 26.943063] CPU: 0 UID: 0 PID: 301 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250722 #1 PREEMPT(voluntary) [ 26.943113] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.943125] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.943147] Call Trace: [ 26.943170] <TASK> [ 26.943185] dump_stack_lvl+0x73/0xb0 [ 26.943216] print_report+0xd1/0x640 [ 26.943240] ? __virt_addr_valid+0x1db/0x2d0 [ 26.943265] ? kasan_alloca_oob_right+0x329/0x390 [ 26.943288] ? kasan_addr_to_slab+0x11/0xa0 [ 26.943310] ? kasan_alloca_oob_right+0x329/0x390 [ 26.943333] kasan_report+0x141/0x180 [ 26.943356] ? kasan_alloca_oob_right+0x329/0x390 [ 26.943385] __asan_report_load1_noabort+0x18/0x20 [ 26.943409] kasan_alloca_oob_right+0x329/0x390 [ 26.943434] ? finish_task_switch.isra.0+0x153/0x700 [ 26.943457] ? __mutex_lock.constprop.0+0x94e/0x1770 [ 26.943533] ? trace_hardirqs_on+0x37/0xe0 [ 26.943560] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 26.943586] ? __schedule+0x10da/0x2b60 [ 26.943611] ? __pfx_read_tsc+0x10/0x10 [ 26.943634] ? ktime_get_ts64+0x86/0x230 [ 26.943658] kunit_try_run_case+0x1a5/0x480 [ 26.943686] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.943710] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.943735] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.943760] ? __kthread_parkme+0x82/0x180 [ 26.943781] ? preempt_count_sub+0x50/0x80 [ 26.943804] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.943842] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.943868] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.943893] kthread+0x337/0x6f0 [ 26.943913] ? trace_preempt_on+0x20/0xc0 [ 26.943937] ? __pfx_kthread+0x10/0x10 [ 26.943958] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.943982] ? calculate_sigpending+0x7b/0xa0 [ 26.944007] ? __pfx_kthread+0x10/0x10 [ 26.944029] ret_from_fork+0x116/0x1d0 [ 26.944049] ? __pfx_kthread+0x10/0x10 [ 26.944070] ret_from_fork_asm+0x1a/0x30 [ 26.944102] </TASK> [ 26.944113] [ 26.951910] The buggy address belongs to stack of task kunit_try_catch/301 [ 26.952207] [ 26.952300] The buggy address belongs to the physical page: [ 26.952585] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1062d7 [ 26.952872] flags: 0x200000000000000(node=0|zone=2) [ 26.953065] raw: 0200000000000000 ffffea000418b5c8 ffffea000418b5c8 0000000000000000 [ 26.953644] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 26.953899] page dumped because: kasan: bad access detected [ 26.954098] [ 26.954188] Memory state around the buggy address: [ 26.954532] ffff8881062d7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.955048] ffff8881062d7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.955288] >ffff8881062d7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 26.955505] ^ [ 26.955682] ffff8881062d7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 26.956001] ffff8881062d7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 26.956543] ==================================================================