Date
July 23, 2025, 3:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.760399] ================================================================== [ 32.760516] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 32.760715] Read of size 1 at addr ffff800080b77b5f by task kunit_try_catch/284 [ 32.760772] [ 32.760810] CPU: 1 UID: 0 PID: 284 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250723 #1 PREEMPT [ 32.760921] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 32.760953] Hardware name: linux,dummy-virt (DT) [ 32.760988] Call trace: [ 32.761013] show_stack+0x20/0x38 (C) [ 32.761066] dump_stack_lvl+0x8c/0xd0 [ 32.761115] print_report+0x310/0x5e8 [ 32.761161] kasan_report+0xdc/0x128 [ 32.761228] __asan_report_load1_noabort+0x20/0x30 [ 32.761283] kasan_alloca_oob_left+0x2b8/0x310 [ 32.761334] kunit_try_run_case+0x170/0x3f0 [ 32.761383] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.761437] kthread+0x328/0x630 [ 32.761480] ret_from_fork+0x10/0x20 [ 32.761532] [ 32.761591] The buggy address belongs to stack of task kunit_try_catch/284 [ 32.761781] [ 32.761806] The buggy address belongs to a 8-page vmalloc region starting at 0xffff800080b70000 allocated at kernel_clone+0x150/0x7b0 [ 32.761959] The buggy address belongs to the physical page: [ 32.761998] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109c18 [ 32.762083] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.762151] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 32.762203] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 32.762246] page dumped because: kasan: bad access detected [ 32.762279] [ 32.762298] Memory state around the buggy address: [ 32.762334] ffff800080b77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.762384] ffff800080b77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.762429] >ffff800080b77b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 32.763205] ^ [ 32.763405] ffff800080b77b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 32.763544] ffff800080b77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 32.763634] ==================================================================
[ 27.116809] ================================================================== [ 27.117417] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 27.117671] Read of size 1 at addr ffff8881061d7c3f by task kunit_try_catch/300 [ 27.117890] [ 27.117979] CPU: 0 UID: 0 PID: 300 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250723 #1 PREEMPT(voluntary) [ 27.118032] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.118045] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.118068] Call Trace: [ 27.118083] <TASK> [ 27.118103] dump_stack_lvl+0x73/0xb0 [ 27.118135] print_report+0xd1/0x640 [ 27.118173] ? __virt_addr_valid+0x1db/0x2d0 [ 27.118198] ? kasan_alloca_oob_left+0x320/0x380 [ 27.118221] ? kasan_addr_to_slab+0x11/0xa0 [ 27.118242] ? kasan_alloca_oob_left+0x320/0x380 [ 27.118264] kasan_report+0x141/0x180 [ 27.118287] ? kasan_alloca_oob_left+0x320/0x380 [ 27.118410] __asan_report_load1_noabort+0x18/0x20 [ 27.118500] kasan_alloca_oob_left+0x320/0x380 [ 27.118528] ? finish_task_switch.isra.0+0x153/0x700 [ 27.118553] ? __wait_for_common+0x1fe/0x440 [ 27.118700] ? trace_hardirqs_on+0x37/0xe0 [ 27.118730] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 27.118756] ? __schedule+0x10da/0x2b60 [ 27.118781] ? __pfx_read_tsc+0x10/0x10 [ 27.118803] ? ktime_get_ts64+0x86/0x230 [ 27.118829] kunit_try_run_case+0x1a5/0x480 [ 27.118856] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.118880] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.118906] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.119398] ? __kthread_parkme+0x82/0x180 [ 27.119429] ? preempt_count_sub+0x50/0x80 [ 27.119454] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.119482] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.119510] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.119535] kthread+0x337/0x6f0 [ 27.119556] ? trace_preempt_on+0x20/0xc0 [ 27.119581] ? __pfx_kthread+0x10/0x10 [ 27.119602] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.119632] ? calculate_sigpending+0x7b/0xa0 [ 27.119657] ? __pfx_kthread+0x10/0x10 [ 27.119679] ret_from_fork+0x116/0x1d0 [ 27.119700] ? __pfx_kthread+0x10/0x10 [ 27.119720] ret_from_fork_asm+0x1a/0x30 [ 27.119753] </TASK> [ 27.119765] [ 27.132006] The buggy address belongs to stack of task kunit_try_catch/300 [ 27.132506] [ 27.132671] The buggy address belongs to the physical page: [ 27.133081] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061d7 [ 27.133434] flags: 0x200000000000000(node=0|zone=2) [ 27.133685] raw: 0200000000000000 ffffea00041875c8 ffffea00041875c8 0000000000000000 [ 27.134015] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 27.134334] page dumped because: kasan: bad access detected [ 27.134566] [ 27.134640] Memory state around the buggy address: [ 27.134855] ffff8881061d7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.135687] ffff8881061d7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.136125] >ffff8881061d7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 27.136666] ^ [ 27.137091] ffff8881061d7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 27.137589] ffff8881061d7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 27.138109] ==================================================================