Date
July 4, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.253781] ================================================================== [ 20.254124] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 20.254414] Read of size 1 at addr ffff800080a77b5f by task kunit_try_catch/251 [ 20.254785] [ 20.254991] CPU: 1 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.255143] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.255268] Hardware name: linux,dummy-virt (DT) [ 20.255331] Call trace: [ 20.255354] show_stack+0x20/0x38 (C) [ 20.255407] dump_stack_lvl+0x8c/0xd0 [ 20.255626] print_report+0x310/0x608 [ 20.255677] kasan_report+0xdc/0x128 [ 20.255767] __asan_report_load1_noabort+0x20/0x30 [ 20.255864] kasan_alloca_oob_left+0x2b8/0x310 [ 20.255918] kunit_try_run_case+0x170/0x3f0 [ 20.256045] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.256098] kthread+0x328/0x630 [ 20.256181] ret_from_fork+0x10/0x20 [ 20.256271] [ 20.256294] The buggy address belongs to stack of task kunit_try_catch/251 [ 20.256421] [ 20.256567] The buggy address belongs to the virtual mapping at [ 20.256567] [ffff800080a70000, ffff800080a79000) created by: [ 20.256567] kernel_clone+0x150/0x7a8 [ 20.256737] [ 20.256836] The buggy address belongs to the physical page: [ 20.256931] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106f35 [ 20.256986] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.257349] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.257576] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.257674] page dumped because: kasan: bad access detected [ 20.257859] [ 20.257960] Memory state around the buggy address: [ 20.258126] ffff800080a77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.258238] ffff800080a77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.258294] >ffff800080a77b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 20.258465] ^ [ 20.258784] ffff800080a77b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 20.258975] ffff800080a77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 20.259093] ==================================================================
[ 13.821088] ================================================================== [ 13.821938] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 13.822306] Read of size 1 at addr ffff888103a87c3f by task kunit_try_catch/268 [ 13.822754] [ 13.822888] CPU: 0 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.822960] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.822974] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.822996] Call Trace: [ 13.823012] <TASK> [ 13.823033] dump_stack_lvl+0x73/0xb0 [ 13.823066] print_report+0xd1/0x650 [ 13.823089] ? __virt_addr_valid+0x1db/0x2d0 [ 13.823114] ? kasan_alloca_oob_left+0x320/0x380 [ 13.823135] ? kasan_addr_to_slab+0x11/0xa0 [ 13.823155] ? kasan_alloca_oob_left+0x320/0x380 [ 13.823176] kasan_report+0x141/0x180 [ 13.823197] ? kasan_alloca_oob_left+0x320/0x380 [ 13.823235] __asan_report_load1_noabort+0x18/0x20 [ 13.823259] kasan_alloca_oob_left+0x320/0x380 [ 13.823282] ? finish_task_switch.isra.0+0x153/0x700 [ 13.823304] ? ww_mutex_unlock+0x6e/0x150 [ 13.823327] ? trace_hardirqs_on+0x37/0xe0 [ 13.823350] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 13.823373] ? __schedule+0x10cc/0x2b60 [ 13.823394] ? __pfx_read_tsc+0x10/0x10 [ 13.823414] ? ktime_get_ts64+0x86/0x230 [ 13.823438] kunit_try_run_case+0x1a5/0x480 [ 13.823462] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.823506] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.823540] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.823562] ? __kthread_parkme+0x82/0x180 [ 13.823583] ? preempt_count_sub+0x50/0x80 [ 13.823604] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.823627] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.823648] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.823670] kthread+0x337/0x6f0 [ 13.823689] ? trace_preempt_on+0x20/0xc0 [ 13.823710] ? __pfx_kthread+0x10/0x10 [ 13.823730] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.823751] ? calculate_sigpending+0x7b/0xa0 [ 13.823774] ? __pfx_kthread+0x10/0x10 [ 13.823795] ret_from_fork+0x116/0x1d0 [ 13.823812] ? __pfx_kthread+0x10/0x10 [ 13.823832] ret_from_fork_asm+0x1a/0x30 [ 13.823864] </TASK> [ 13.823876] [ 13.833145] The buggy address belongs to stack of task kunit_try_catch/268 [ 13.833509] [ 13.833607] The buggy address belongs to the physical page: [ 13.833946] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a87 [ 13.834596] flags: 0x200000000000000(node=0|zone=2) [ 13.834841] raw: 0200000000000000 ffffea00040ea1c8 ffffea00040ea1c8 0000000000000000 [ 13.835181] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.835890] page dumped because: kasan: bad access detected [ 13.836066] [ 13.836164] Memory state around the buggy address: [ 13.836564] ffff888103a87b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.837105] ffff888103a87b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.837402] >ffff888103a87c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.837851] ^ [ 13.838327] ffff888103a87c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.838647] ffff888103a87d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.838967] ==================================================================