Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 25.836480] ================================================================== [ 25.840298] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 25.843425] Read of size 1 at addr ffff800080ba7b5f by task kunit_try_catch/240 [ 25.844080] [ 25.844345] CPU: 0 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G B N 6.14.11-rc1 #1 [ 25.844542] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.844613] Hardware name: linux,dummy-virt (DT) [ 25.844690] Call trace: [ 25.844750] show_stack+0x20/0x38 (C) [ 25.844874] dump_stack_lvl+0x8c/0xd0 [ 25.847707] print_report+0x310/0x608 [ 25.847837] kasan_report+0xdc/0x128 [ 25.847973] __asan_report_load1_noabort+0x20/0x30 [ 25.848097] kasan_alloca_oob_left+0x2b8/0x310 [ 25.848219] kunit_try_run_case+0x170/0x3f0 [ 25.848335] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 25.848465] kthread+0x318/0x620 [ 25.848577] ret_from_fork+0x10/0x20 [ 25.848698] [ 25.864912] The buggy address belongs to stack of task kunit_try_catch/240 [ 25.866512] [ 25.866775] The buggy address belongs to the virtual mapping at [ 25.866775] [ffff800080ba0000, ffff800080ba9000) created by: [ 25.866775] kernel_clone+0x150/0x7a8 [ 25.871294] [ 25.871623] The buggy address belongs to the physical page: [ 25.872083] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1065c1 [ 25.872677] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 25.874447] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 25.875397] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 25.878352] page dumped because: kasan: bad access detected [ 25.878802] [ 25.879052] Memory state around the buggy address: [ 25.879459] ffff800080ba7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.881678] ffff800080ba7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.882726] >ffff800080ba7b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 25.883552] ^ [ 25.886276] ffff800080ba7b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 25.887128] ffff800080ba7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 25.889497] ==================================================================
[ 20.066842] ================================================================== [ 20.067776] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x322/0x380 [ 20.068328] Read of size 1 at addr ffff888102b87c3f by task kunit_try_catch/259 [ 20.068733] [ 20.068919] CPU: 1 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G B N 6.14.11-rc1 #1 [ 20.069028] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.069059] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 20.069091] Call Trace: [ 20.069111] <TASK> [ 20.069134] dump_stack_lvl+0x73/0xb0 [ 20.069173] print_report+0xd1/0x650 [ 20.069204] ? __virt_addr_valid+0x1db/0x2d0 [ 20.069256] ? kasan_alloca_oob_left+0x322/0x380 [ 20.069287] ? kasan_addr_to_slab+0x11/0xa0 [ 20.069314] ? kasan_alloca_oob_left+0x322/0x380 [ 20.069342] kasan_report+0x140/0x180 [ 20.069371] ? kasan_alloca_oob_left+0x322/0x380 [ 20.069405] __asan_report_load1_noabort+0x18/0x20 [ 20.069434] kasan_alloca_oob_left+0x322/0x380 [ 20.069463] ? finish_task_switch.isra.0+0x153/0x700 [ 20.069493] ? __ww_mutex_lock.constprop.0+0x4fe/0x1f20 [ 20.069527] ? trace_hardirqs_on+0x37/0xe0 [ 20.069559] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 20.069589] ? __schedule+0xce8/0x2840 [ 20.069618] ? __pfx_read_tsc+0x10/0x10 [ 20.069645] ? ktime_get_ts64+0x86/0x230 [ 20.069677] kunit_try_run_case+0x1a6/0x480 [ 20.069707] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.069736] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 20.069764] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 20.069793] ? __kthread_parkme+0x82/0x160 [ 20.069821] ? preempt_count_sub+0x50/0x80 [ 20.069850] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.070223] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 20.070293] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 20.070357] kthread+0x324/0x6e0 [ 20.070416] ? trace_preempt_on+0x20/0xc0 [ 20.070473] ? __pfx_kthread+0x10/0x10 [ 20.070532] ? _raw_spin_unlock_irq+0x47/0x80 [ 20.070590] ? calculate_sigpending+0x7b/0xa0 [ 20.070652] ? __pfx_kthread+0x10/0x10 [ 20.070705] ret_from_fork+0x41/0x80 [ 20.070750] ? __pfx_kthread+0x10/0x10 [ 20.070783] ret_from_fork_asm+0x1a/0x30 [ 20.070823] </TASK> [ 20.070838] [ 20.086307] The buggy address belongs to stack of task kunit_try_catch/259 [ 20.086873] [ 20.087084] The buggy address belongs to the physical page: [ 20.087475] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b87 [ 20.088286] flags: 0x200000000000000(node=0|zone=2) [ 20.088950] raw: 0200000000000000 ffffea00040ae1c8 ffffea00040ae1c8 0000000000000000 [ 20.089622] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 20.090017] page dumped because: kasan: bad access detected [ 20.090644] [ 20.090868] Memory state around the buggy address: [ 20.091195] ffff888102b87b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.092191] ffff888102b87b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.092879] >ffff888102b87c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 20.093342] ^ [ 20.093941] ffff888102b87c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 20.094368] ffff888102b87d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 20.095021] ==================================================================