Date
July 23, 2025, 3:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.770753] ================================================================== [ 32.771140] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 32.771301] Read of size 1 at addr ffff800080b77b4a by task kunit_try_catch/286 [ 32.771352] [ 32.771387] CPU: 1 UID: 0 PID: 286 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250723 #1 PREEMPT [ 32.772124] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 32.772303] Hardware name: linux,dummy-virt (DT) [ 32.772343] Call trace: [ 32.772691] show_stack+0x20/0x38 (C) [ 32.772766] dump_stack_lvl+0x8c/0xd0 [ 32.772815] print_report+0x310/0x5e8 [ 32.772862] kasan_report+0xdc/0x128 [ 32.772916] __asan_report_load1_noabort+0x20/0x30 [ 32.772965] kasan_alloca_oob_right+0x2dc/0x340 [ 32.773015] kunit_try_run_case+0x170/0x3f0 [ 32.773279] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.773519] kthread+0x328/0x630 [ 32.773569] ret_from_fork+0x10/0x20 [ 32.773762] [ 32.773829] The buggy address belongs to stack of task kunit_try_catch/286 [ 32.774150] [ 32.774173] The buggy address belongs to a 8-page vmalloc region starting at 0xffff800080b70000 allocated at kernel_clone+0x150/0x7b0 [ 32.774572] The buggy address belongs to the physical page: [ 32.774610] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109c18 [ 32.774878] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.775058] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 32.775284] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 32.775333] page dumped because: kasan: bad access detected [ 32.775367] [ 32.775635] Memory state around the buggy address: [ 32.775684] ffff800080b77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.775731] ffff800080b77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.776216] >ffff800080b77b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 32.776416] ^ [ 32.776585] ffff800080b77b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 32.776677] ffff800080b77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 32.776815] ==================================================================
[ 27.142515] ================================================================== [ 27.143031] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 27.143305] Read of size 1 at addr ffff888106227c4a by task kunit_try_catch/302 [ 27.143740] [ 27.143903] CPU: 1 UID: 0 PID: 302 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250723 #1 PREEMPT(voluntary) [ 27.143959] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.143972] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.143997] Call Trace: [ 27.144011] <TASK> [ 27.144292] dump_stack_lvl+0x73/0xb0 [ 27.144334] print_report+0xd1/0x640 [ 27.144360] ? __virt_addr_valid+0x1db/0x2d0 [ 27.144434] ? kasan_alloca_oob_right+0x329/0x390 [ 27.144476] ? kasan_addr_to_slab+0x11/0xa0 [ 27.144497] ? kasan_alloca_oob_right+0x329/0x390 [ 27.144521] kasan_report+0x141/0x180 [ 27.144543] ? kasan_alloca_oob_right+0x329/0x390 [ 27.144571] __asan_report_load1_noabort+0x18/0x20 [ 27.144596] kasan_alloca_oob_right+0x329/0x390 [ 27.144617] ? __kasan_check_write+0x18/0x20 [ 27.144641] ? __pfx_sched_clock_cpu+0x10/0x10 [ 27.144665] ? finish_task_switch.isra.0+0x153/0x700 [ 27.144689] ? __wait_for_common+0x1fe/0x440 [ 27.144711] ? trace_hardirqs_on+0x37/0xe0 [ 27.144738] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 27.144773] ? __schedule+0x10da/0x2b60 [ 27.144798] ? __pfx_read_tsc+0x10/0x10 [ 27.144831] ? ktime_get_ts64+0x86/0x230 [ 27.144856] kunit_try_run_case+0x1a5/0x480 [ 27.144884] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.144906] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.144931] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.144968] ? __kthread_parkme+0x82/0x180 [ 27.144997] ? preempt_count_sub+0x50/0x80 [ 27.145021] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.145045] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.145079] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.145103] kthread+0x337/0x6f0 [ 27.145123] ? trace_preempt_on+0x20/0xc0 [ 27.145155] ? __pfx_kthread+0x10/0x10 [ 27.145176] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.145199] ? calculate_sigpending+0x7b/0xa0 [ 27.145224] ? __pfx_kthread+0x10/0x10 [ 27.145245] ret_from_fork+0x116/0x1d0 [ 27.145265] ? __pfx_kthread+0x10/0x10 [ 27.145286] ret_from_fork_asm+0x1a/0x30 [ 27.145318] </TASK> [ 27.145329] [ 27.159578] The buggy address belongs to stack of task kunit_try_catch/302 [ 27.160367] [ 27.160447] The buggy address belongs to the physical page: [ 27.160927] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106227 [ 27.161632] flags: 0x200000000000000(node=0|zone=2) [ 27.161818] raw: 0200000000000000 ffffea00041889c8 ffffea00041889c8 0000000000000000 [ 27.162308] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 27.163140] page dumped because: kasan: bad access detected [ 27.163677] [ 27.163868] Memory state around the buggy address: [ 27.164259] ffff888106227b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.164838] ffff888106227b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.165091] >ffff888106227c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 27.165679] ^ [ 27.166226] ffff888106227c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 27.166788] ffff888106227d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 27.167034] ==================================================================