Date
July 17, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.793511] ================================================================== [ 17.793603] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 17.793899] Read of size 1 at addr ffff800080a27b5f by task kunit_try_catch/252 [ 17.793961] [ 17.794256] CPU: 0 UID: 0 PID: 252 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.794344] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.794373] Hardware name: linux,dummy-virt (DT) [ 17.794406] Call trace: [ 17.794429] show_stack+0x20/0x38 (C) [ 17.794481] dump_stack_lvl+0x8c/0xd0 [ 17.795288] print_report+0x310/0x5d0 [ 17.795359] kasan_report+0xdc/0x128 [ 17.795625] __asan_report_load1_noabort+0x20/0x30 [ 17.795685] kasan_alloca_oob_left+0x2b8/0x310 [ 17.796375] kunit_try_run_case+0x170/0x3f0 [ 17.796898] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.797068] kthread+0x328/0x630 [ 17.797276] ret_from_fork+0x10/0x20 [ 17.797352] [ 17.797418] The buggy address belongs to stack of task kunit_try_catch/252 [ 17.797779] [ 17.798080] The buggy address ffff800080a27b5f belongs to a vmalloc virtual mapping [ 17.798392] The buggy address belongs to the physical page: [ 17.798537] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107826 [ 17.798791] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.798867] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.799284] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.799386] page dumped because: kasan: bad access detected [ 17.799791] [ 17.799900] Memory state around the buggy address: [ 17.800021] ffff800080a27a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.800093] ffff800080a27a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.800464] >ffff800080a27b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 17.800584] ^ [ 17.800956] ffff800080a27b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.801066] ffff800080a27c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.801395] ==================================================================
[ 14.898517] ================================================================== [ 14.898989] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 14.899284] Read of size 1 at addr ffff88810389fc3f by task kunit_try_catch/268 [ 14.899648] [ 14.899974] CPU: 1 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 14.900024] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.900037] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.900064] Call Trace: [ 14.900074] <TASK> [ 14.900087] dump_stack_lvl+0x73/0xb0 [ 14.900118] print_report+0xd1/0x610 [ 14.900140] ? __virt_addr_valid+0x1db/0x2d0 [ 14.900164] ? kasan_alloca_oob_left+0x320/0x380 [ 14.900187] ? kasan_addr_to_slab+0x11/0xa0 [ 14.900208] ? kasan_alloca_oob_left+0x320/0x380 [ 14.900232] kasan_report+0x141/0x180 [ 14.900508] ? kasan_alloca_oob_left+0x320/0x380 [ 14.900543] __asan_report_load1_noabort+0x18/0x20 [ 14.900583] kasan_alloca_oob_left+0x320/0x380 [ 14.900608] ? finish_task_switch.isra.0+0x153/0x700 [ 14.900632] ? __schedule+0x200e/0x2b60 [ 14.900654] ? trace_hardirqs_on+0x37/0xe0 [ 14.900680] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 14.900705] ? __schedule+0x10cc/0x2b60 [ 14.900727] ? __pfx_read_tsc+0x10/0x10 [ 14.900749] ? ktime_get_ts64+0x86/0x230 [ 14.900773] kunit_try_run_case+0x1a5/0x480 [ 14.900797] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.900820] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.900844] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.900869] ? __kthread_parkme+0x82/0x180 [ 14.900890] ? preempt_count_sub+0x50/0x80 [ 14.900914] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.900939] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.900964] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.900990] kthread+0x337/0x6f0 [ 14.901009] ? trace_preempt_on+0x20/0xc0 [ 14.901032] ? __pfx_kthread+0x10/0x10 [ 14.901054] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.901076] ? calculate_sigpending+0x7b/0xa0 [ 14.901100] ? __pfx_kthread+0x10/0x10 [ 14.901122] ret_from_fork+0x116/0x1d0 [ 14.901141] ? __pfx_kthread+0x10/0x10 [ 14.901162] ret_from_fork_asm+0x1a/0x30 [ 14.901194] </TASK> [ 14.901204] [ 14.909461] The buggy address belongs to stack of task kunit_try_catch/268 [ 14.910039] [ 14.910141] The buggy address belongs to the physical page: [ 14.910459] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10389f [ 14.910728] flags: 0x200000000000000(node=0|zone=2) [ 14.911022] raw: 0200000000000000 ffffea00040e27c8 ffffea00040e27c8 0000000000000000 [ 14.911529] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.911822] page dumped because: kasan: bad access detected [ 14.912059] [ 14.912140] Memory state around the buggy address: [ 14.912537] ffff88810389fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.912848] ffff88810389fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.913099] >ffff88810389fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.913314] ^ [ 14.913485] ffff88810389fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.913882] ffff88810389fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.914331] ==================================================================