Date
July 19, 2025, 11:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.471261] ================================================================== [ 17.471344] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 17.471404] Read of size 1 at addr ffff800080a77b5f by task kunit_try_catch/252 [ 17.471457] [ 17.471489] CPU: 1 UID: 0 PID: 252 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.472930] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.473077] Hardware name: linux,dummy-virt (DT) [ 17.473110] Call trace: [ 17.473136] show_stack+0x20/0x38 (C) [ 17.473193] dump_stack_lvl+0x8c/0xd0 [ 17.473243] print_report+0x310/0x5d0 [ 17.473291] kasan_report+0xdc/0x128 [ 17.473337] __asan_report_load1_noabort+0x20/0x30 [ 17.473393] kasan_alloca_oob_left+0x2b8/0x310 [ 17.474253] kunit_try_run_case+0x170/0x3f0 [ 17.474554] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.474615] kthread+0x328/0x630 [ 17.475032] ret_from_fork+0x10/0x20 [ 17.475488] [ 17.475668] The buggy address belongs to stack of task kunit_try_catch/252 [ 17.476014] [ 17.476183] The buggy address ffff800080a77b5f belongs to a vmalloc virtual mapping [ 17.476230] The buggy address belongs to the physical page: [ 17.476763] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106e85 [ 17.477032] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.477257] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.477609] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.477931] page dumped because: kasan: bad access detected [ 17.477973] [ 17.477993] Memory state around the buggy address: [ 17.478029] ffff800080a77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.478074] ffff800080a77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.478124] >ffff800080a77b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 17.478491] ^ [ 17.478547] ffff800080a77b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.478594] ffff800080a77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.478636] ==================================================================
[ 13.858356] ================================================================== [ 13.858871] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 13.859355] Read of size 1 at addr ffff888103a7fc3f by task kunit_try_catch/269 [ 13.860149] [ 13.860379] CPU: 1 UID: 0 PID: 269 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.860433] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.860444] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.860467] Call Trace: [ 13.860480] <TASK> [ 13.860506] dump_stack_lvl+0x73/0xb0 [ 13.860539] print_report+0xd1/0x610 [ 13.860560] ? __virt_addr_valid+0x1db/0x2d0 [ 13.860584] ? kasan_alloca_oob_left+0x320/0x380 [ 13.860606] ? kasan_addr_to_slab+0x11/0xa0 [ 13.860627] ? kasan_alloca_oob_left+0x320/0x380 [ 13.860650] kasan_report+0x141/0x180 [ 13.860672] ? kasan_alloca_oob_left+0x320/0x380 [ 13.860698] __asan_report_load1_noabort+0x18/0x20 [ 13.860723] kasan_alloca_oob_left+0x320/0x380 [ 13.860747] ? finish_task_switch.isra.0+0x153/0x700 [ 13.860770] ? __schedule+0x100e/0x2b60 [ 13.860791] ? trace_hardirqs_on+0x37/0xe0 [ 13.860816] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 13.860841] ? __schedule+0x10cc/0x2b60 [ 13.860862] ? __pfx_read_tsc+0x10/0x10 [ 13.860882] ? ktime_get_ts64+0x86/0x230 [ 13.860906] kunit_try_run_case+0x1a5/0x480 [ 13.860931] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.860954] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.860978] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.861002] ? __kthread_parkme+0x82/0x180 [ 13.861021] ? preempt_count_sub+0x50/0x80 [ 13.861182] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.861212] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.861237] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.861261] kthread+0x337/0x6f0 [ 13.861280] ? trace_preempt_on+0x20/0xc0 [ 13.861301] ? __pfx_kthread+0x10/0x10 [ 13.861321] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.861342] ? calculate_sigpending+0x7b/0xa0 [ 13.861366] ? __pfx_kthread+0x10/0x10 [ 13.861387] ret_from_fork+0x116/0x1d0 [ 13.861406] ? __pfx_kthread+0x10/0x10 [ 13.861425] ret_from_fork_asm+0x1a/0x30 [ 13.861456] </TASK> [ 13.861467] [ 13.873084] The buggy address belongs to stack of task kunit_try_catch/269 [ 13.873687] [ 13.873812] The buggy address belongs to the physical page: [ 13.874302] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a7f [ 13.874661] flags: 0x200000000000000(node=0|zone=2) [ 13.875002] raw: 0200000000000000 ffffea00040e9fc8 ffffea00040e9fc8 0000000000000000 [ 13.875676] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.876015] page dumped because: kasan: bad access detected [ 13.876744] [ 13.876844] Memory state around the buggy address: [ 13.877052] ffff888103a7fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.877649] ffff888103a7fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.877973] >ffff888103a7fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.878440] ^ [ 13.878694] ffff888103a7fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.879174] ffff888103a7fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.879578] ==================================================================