Date
July 16, 2025, 12:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.902837] ================================================================== [ 32.902936] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 32.903242] Read of size 1 at addr ffff800080b27b5f by task kunit_try_catch/282 [ 32.903304] [ 32.903337] CPU: 0 UID: 0 PID: 282 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT [ 32.903427] Tainted: [B]=BAD_PAGE, [N]=TEST [ 32.903856] Hardware name: linux,dummy-virt (DT) [ 32.904010] Call trace: [ 32.904108] show_stack+0x20/0x38 (C) [ 32.904281] dump_stack_lvl+0x8c/0xd0 [ 32.904720] print_report+0x310/0x5d0 [ 32.904930] kasan_report+0xdc/0x128 [ 32.905093] __asan_report_load1_noabort+0x20/0x30 [ 32.905207] kasan_alloca_oob_left+0x2b8/0x310 [ 32.905333] kunit_try_run_case+0x170/0x3f0 [ 32.905541] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.905633] kthread+0x328/0x630 [ 32.905795] ret_from_fork+0x10/0x20 [ 32.905881] [ 32.906156] The buggy address belongs to stack of task kunit_try_catch/282 [ 32.906338] [ 32.906390] The buggy address ffff800080b27b5f belongs to a vmalloc virtual mapping [ 32.906680] The buggy address belongs to the physical page: [ 32.906899] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b1a [ 32.906975] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.907339] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 32.907635] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 32.907839] page dumped because: kasan: bad access detected [ 32.908048] [ 32.908205] Memory state around the buggy address: [ 32.908413] ffff800080b27a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.908482] ffff800080b27a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 32.908782] >ffff800080b27b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 32.908932] ^ [ 32.909159] ffff800080b27b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 32.909369] ffff800080b27c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 32.909515] ==================================================================
[ 25.136220] ================================================================== [ 25.136758] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 25.137341] Read of size 1 at addr ffff8881061e7c3f by task kunit_try_catch/300 [ 25.137748] [ 25.137866] CPU: 0 UID: 0 PID: 300 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) [ 25.137921] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.137935] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.137957] Call Trace: [ 25.137971] <TASK> [ 25.137989] dump_stack_lvl+0x73/0xb0 [ 25.138023] print_report+0xd1/0x610 [ 25.138049] ? __virt_addr_valid+0x1db/0x2d0 [ 25.138074] ? kasan_alloca_oob_left+0x320/0x380 [ 25.138097] ? kasan_addr_to_slab+0x11/0xa0 [ 25.138117] ? kasan_alloca_oob_left+0x320/0x380 [ 25.138139] kasan_report+0x141/0x180 [ 25.138161] ? kasan_alloca_oob_left+0x320/0x380 [ 25.138188] __asan_report_load1_noabort+0x18/0x20 [ 25.138212] kasan_alloca_oob_left+0x320/0x380 [ 25.138235] ? finish_task_switch.isra.0+0x153/0x700 [ 25.138258] ? down_interruptible+0x1e/0xa0 [ 25.138283] ? trace_hardirqs_on+0x37/0xe0 [ 25.138323] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 25.138347] ? __schedule+0x10c6/0x2b60 [ 25.138369] ? __pfx_read_tsc+0x10/0x10 [ 25.138391] ? ktime_get_ts64+0x86/0x230 [ 25.138418] kunit_try_run_case+0x1a5/0x480 [ 25.138442] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.138464] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.138487] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.138509] ? __kthread_parkme+0x82/0x180 [ 25.138530] ? preempt_count_sub+0x50/0x80 [ 25.138552] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.138575] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.138602] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.138630] kthread+0x337/0x6f0 [ 25.138649] ? trace_preempt_on+0x20/0xc0 [ 25.138686] ? __pfx_kthread+0x10/0x10 [ 25.138706] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.138727] ? calculate_sigpending+0x7b/0xa0 [ 25.138752] ? __pfx_kthread+0x10/0x10 [ 25.138773] ret_from_fork+0x116/0x1d0 [ 25.138792] ? __pfx_kthread+0x10/0x10 [ 25.138812] ret_from_fork_asm+0x1a/0x30 [ 25.138844] </TASK> [ 25.138855] [ 25.146426] The buggy address belongs to stack of task kunit_try_catch/300 [ 25.146706] [ 25.146772] The buggy address belongs to the physical page: [ 25.147062] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061e7 [ 25.147475] flags: 0x200000000000000(node=0|zone=2) [ 25.147696] raw: 0200000000000000 ffffea00041879c8 ffffea00041879c8 0000000000000000 [ 25.148017] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 25.148383] page dumped because: kasan: bad access detected [ 25.148636] [ 25.148704] Memory state around the buggy address: [ 25.148938] ffff8881061e7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.149256] ffff8881061e7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.149571] >ffff8881061e7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 25.149803] ^ [ 25.149961] ffff8881061e7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 25.150169] ffff8881061e7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 25.150743] ==================================================================