Date
June 20, 2025, 12:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 35.030283] ================================================================== [ 35.030472] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 35.030649] Read of size 1 at addr ffff800080a57b4a by task kunit_try_catch/264 [ 35.030784] [ 35.030881] CPU: 0 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250620 #1 PREEMPT [ 35.031124] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.031186] Hardware name: linux,dummy-virt (DT) [ 35.031266] Call trace: [ 35.031321] show_stack+0x20/0x38 (C) [ 35.031514] dump_stack_lvl+0x8c/0xd0 [ 35.031702] print_report+0x310/0x608 [ 35.031815] kasan_report+0xdc/0x128 [ 35.031926] __asan_report_load1_noabort+0x20/0x30 [ 35.032530] kasan_alloca_oob_right+0x2dc/0x340 [ 35.032723] kunit_try_run_case+0x170/0x3f0 [ 35.032880] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.033017] kthread+0x328/0x630 [ 35.033129] ret_from_fork+0x10/0x20 [ 35.033255] [ 35.033310] The buggy address belongs to stack of task kunit_try_catch/264 [ 35.033445] [ 35.033514] The buggy address belongs to the virtual mapping at [ 35.033514] [ffff800080a50000, ffff800080a59000) created by: [ 35.033514] kernel_clone+0x150/0x7a8 [ 35.033727] [ 35.033782] The buggy address belongs to the physical page: [ 35.033850] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105955 [ 35.034161] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 35.034317] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 35.034449] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 35.034585] page dumped because: kasan: bad access detected [ 35.034687] [ 35.034750] Memory state around the buggy address: [ 35.034840] ffff800080a57a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.034969] ffff800080a57a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 35.035128] >ffff800080a57b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 35.035227] ^ [ 35.035319] ffff800080a57b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 35.035437] ffff800080a57c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 35.035540] ==================================================================
[ 27.747835] ================================================================== [ 27.748395] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 27.749083] Read of size 1 at addr ffff888103a1fc4a by task kunit_try_catch/282 [ 27.750013] [ 27.750427] CPU: 0 UID: 0 PID: 282 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250620 #1 PREEMPT(voluntary) [ 27.750546] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.750564] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.750591] Call Trace: [ 27.750611] <TASK> [ 27.750635] dump_stack_lvl+0x73/0xb0 [ 27.750680] print_report+0xd1/0x650 [ 27.750708] ? __virt_addr_valid+0x1db/0x2d0 [ 27.750735] ? kasan_alloca_oob_right+0x329/0x390 [ 27.750761] ? kasan_addr_to_slab+0x11/0xa0 [ 27.750785] ? kasan_alloca_oob_right+0x329/0x390 [ 27.750809] kasan_report+0x141/0x180 [ 27.750833] ? kasan_alloca_oob_right+0x329/0x390 [ 27.750863] __asan_report_load1_noabort+0x18/0x20 [ 27.750890] kasan_alloca_oob_right+0x329/0x390 [ 27.750915] ? __pfx_sched_clock_cpu+0x10/0x10 [ 27.750941] ? finish_task_switch.isra.0+0x153/0x700 [ 27.750969] ? __up.isra.0+0xee/0x140 [ 27.750993] ? trace_hardirqs_on+0x37/0xe0 [ 27.751020] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 27.751047] ? __schedule+0x10cc/0x2b60 [ 27.751071] ? __pfx_read_tsc+0x10/0x10 [ 27.751096] ? ktime_get_ts64+0x86/0x230 [ 27.751124] kunit_try_run_case+0x1a5/0x480 [ 27.751160] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.751198] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.751243] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.751288] ? __kthread_parkme+0x82/0x180 [ 27.751326] ? preempt_count_sub+0x50/0x80 [ 27.751370] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.751416] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.751483] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.751536] kthread+0x337/0x6f0 [ 27.751582] ? trace_preempt_on+0x20/0xc0 [ 27.751621] ? __pfx_kthread+0x10/0x10 [ 27.751656] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.751699] ? calculate_sigpending+0x7b/0xa0 [ 27.751745] ? __pfx_kthread+0x10/0x10 [ 27.751793] ret_from_fork+0x116/0x1d0 [ 27.751838] ? __pfx_kthread+0x10/0x10 [ 27.751887] ret_from_fork_asm+0x1a/0x30 [ 27.751953] </TASK> [ 27.751976] [ 27.764740] The buggy address belongs to stack of task kunit_try_catch/282 [ 27.765390] [ 27.765576] The buggy address belongs to the physical page: [ 27.765852] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a1f [ 27.766849] flags: 0x200000000000000(node=0|zone=2) [ 27.767349] raw: 0200000000000000 ffffea00040e87c8 ffffea00040e87c8 0000000000000000 [ 27.767836] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 27.768317] page dumped because: kasan: bad access detected [ 27.768660] [ 27.768846] Memory state around the buggy address: [ 27.769039] ffff888103a1fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.769514] ffff888103a1fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.770006] >ffff888103a1fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 27.770571] ^ [ 27.770858] ffff888103a1fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 27.771432] ffff888103a1fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 27.772025] ==================================================================