Date
July 25, 2025, 3:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 34.584220] ================================================================== [ 34.584289] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 34.584390] Read of size 1 at addr ffff800080bc7b4a by task kunit_try_catch/285 [ 34.584444] [ 34.584477] CPU: 0 UID: 0 PID: 285 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250725 #1 PREEMPT [ 34.584569] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 34.584602] Hardware name: linux,dummy-virt (DT) [ 34.584635] Call trace: [ 34.584680] show_stack+0x20/0x38 (C) [ 34.584730] dump_stack_lvl+0x8c/0xd0 [ 34.584790] print_report+0x310/0x5e8 [ 34.584837] kasan_report+0xdc/0x128 [ 34.584892] __asan_report_load1_noabort+0x20/0x30 [ 34.584943] kasan_alloca_oob_right+0x2dc/0x340 [ 34.584993] kunit_try_run_case+0x170/0x3f0 [ 34.585045] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 34.585097] kthread+0x328/0x630 [ 34.585140] ret_from_fork+0x10/0x20 [ 34.585196] [ 34.585220] The buggy address belongs to stack of task kunit_try_catch/285 [ 34.585275] [ 34.585297] The buggy address belongs to a 8-page vmalloc region starting at 0xffff800080bc0000 allocated at kernel_clone+0x150/0x7b0 [ 34.585408] The buggy address belongs to the physical page: [ 34.585445] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a7e [ 34.585507] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 34.585570] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 34.585622] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 34.586444] page dumped because: kasan: bad access detected [ 34.586499] [ 34.586565] Memory state around the buggy address: [ 34.586603] ffff800080bc7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 34.586699] ffff800080bc7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 34.586845] >ffff800080bc7b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 34.586951] ^ [ 34.587179] ffff800080bc7b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 34.587258] ffff800080bc7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 34.587400] ==================================================================
[ 27.679632] ================================================================== [ 27.680394] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 27.680736] Read of size 1 at addr ffff8881061dfc4a by task kunit_try_catch/302 [ 27.681259] [ 27.681347] CPU: 1 UID: 0 PID: 302 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250725 #1 PREEMPT(voluntary) [ 27.681398] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.681412] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.681433] Call Trace: [ 27.681447] <TASK> [ 27.681462] dump_stack_lvl+0x73/0xb0 [ 27.681493] print_report+0xd1/0x640 [ 27.681518] ? __virt_addr_valid+0x1db/0x2d0 [ 27.681544] ? kasan_alloca_oob_right+0x329/0x390 [ 27.681567] ? kasan_addr_to_slab+0x11/0xa0 [ 27.681589] ? kasan_alloca_oob_right+0x329/0x390 [ 27.681614] kasan_report+0x141/0x180 [ 27.681637] ? kasan_alloca_oob_right+0x329/0x390 [ 27.681666] __asan_report_load1_noabort+0x18/0x20 [ 27.681692] kasan_alloca_oob_right+0x329/0x390 [ 27.681718] ? finish_task_switch.isra.0+0x153/0x700 [ 27.681742] ? mutex_lock_interruptible+0xbe/0xe0 [ 27.681768] ? trace_hardirqs_on+0x37/0xe0 [ 27.681852] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 27.681881] ? __schedule+0x10da/0x2b60 [ 27.681904] ? __pfx_read_tsc+0x10/0x10 [ 27.681928] ? ktime_get_ts64+0x86/0x230 [ 27.681969] kunit_try_run_case+0x1a5/0x480 [ 27.681995] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.682019] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.682041] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.682079] ? __kthread_parkme+0x82/0x180 [ 27.682100] ? preempt_count_sub+0x50/0x80 [ 27.682125] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.682150] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.682175] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.682201] kthread+0x337/0x6f0 [ 27.682223] ? trace_preempt_on+0x20/0xc0 [ 27.682247] ? __pfx_kthread+0x10/0x10 [ 27.682269] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.682294] ? calculate_sigpending+0x7b/0xa0 [ 27.682318] ? __pfx_kthread+0x10/0x10 [ 27.682341] ret_from_fork+0x116/0x1d0 [ 27.682361] ? __pfx_kthread+0x10/0x10 [ 27.682383] ret_from_fork_asm+0x1a/0x30 [ 27.682415] </TASK> [ 27.682427] [ 27.690578] The buggy address belongs to stack of task kunit_try_catch/302 [ 27.691094] [ 27.691176] The buggy address belongs to the physical page: [ 27.691419] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061df [ 27.691734] flags: 0x200000000000000(node=0|zone=2) [ 27.692049] raw: 0200000000000000 ffffea00041877c8 ffffea00041877c8 0000000000000000 [ 27.692379] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 27.692669] page dumped because: kasan: bad access detected [ 27.692978] [ 27.693052] Memory state around the buggy address: [ 27.693364] ffff8881061dfb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.693653] ffff8881061dfb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.693988] >ffff8881061dfc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 27.694210] ^ [ 27.694388] ffff8881061dfc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 27.694609] ffff8881061dfd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 27.694917] ==================================================================