Date
July 9, 2025, 1:08 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 31.573914] ================================================================== [ 31.573992] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 31.574049] Read of size 1 at addr ffff800080c07b5f by task kunit_try_catch/283 [ 31.574120] [ 31.574169] CPU: 1 UID: 0 PID: 283 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250709 #1 PREEMPT [ 31.574260] Tainted: [B]=BAD_PAGE, [N]=TEST [ 31.574290] Hardware name: linux,dummy-virt (DT) [ 31.574333] Call trace: [ 31.574366] show_stack+0x20/0x38 (C) [ 31.574420] dump_stack_lvl+0x8c/0xd0 [ 31.574471] print_report+0x310/0x5d0 [ 31.574518] kasan_report+0xdc/0x128 [ 31.574564] __asan_report_load1_noabort+0x20/0x30 [ 31.574614] kasan_alloca_oob_left+0x2b8/0x310 [ 31.574665] kunit_try_run_case+0x170/0x3f0 [ 31.574717] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 31.574774] kthread+0x328/0x630 [ 31.574826] ret_from_fork+0x10/0x20 [ 31.574878] [ 31.574901] The buggy address belongs to stack of task kunit_try_catch/283 [ 31.574970] [ 31.574998] The buggy address ffff800080c07b5f belongs to a vmalloc virtual mapping [ 31.575439] The buggy address belongs to the physical page: [ 31.575697] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109c27 [ 31.575802] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 31.576039] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 31.576111] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 31.576155] page dumped because: kasan: bad access detected [ 31.576190] [ 31.576210] Memory state around the buggy address: [ 31.576244] ffff800080c07a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.576290] ffff800080c07a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 31.576335] >ffff800080c07b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 31.576518] ^ [ 31.576650] ffff800080c07b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 31.576734] ffff800080c07c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 31.576830] ==================================================================
[ 25.945655] ================================================================== [ 25.946115] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 25.946357] Read of size 1 at addr ffff8881062bfc3f by task kunit_try_catch/301 [ 25.946571] [ 25.946655] CPU: 0 UID: 0 PID: 301 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5-next-20250709 #1 PREEMPT(voluntary) [ 25.946720] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 25.946735] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.946757] Call Trace: [ 25.946771] <TASK> [ 25.946791] dump_stack_lvl+0x73/0xb0 [ 25.946822] print_report+0xd1/0x610 [ 25.946844] ? __virt_addr_valid+0x1db/0x2d0 [ 25.946869] ? kasan_alloca_oob_left+0x320/0x380 [ 25.946890] ? kasan_addr_to_slab+0x11/0xa0 [ 25.946910] ? kasan_alloca_oob_left+0x320/0x380 [ 25.946932] kasan_report+0x141/0x180 [ 25.946952] ? kasan_alloca_oob_left+0x320/0x380 [ 25.946979] __asan_report_load1_noabort+0x18/0x20 [ 25.947003] kasan_alloca_oob_left+0x320/0x380 [ 25.947024] ? __kasan_check_write+0x18/0x20 [ 25.947046] ? __pfx_sched_clock_cpu+0x10/0x10 [ 25.947067] ? finish_task_switch.isra.0+0x153/0x700 [ 25.947089] ? __ww_mutex_lock.constprop.0+0x148e/0x1e90 [ 25.947116] ? trace_hardirqs_on+0x37/0xe0 [ 25.947140] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 25.947163] ? __schedule+0x10cc/0x2b60 [ 25.947185] ? __pfx_read_tsc+0x10/0x10 [ 25.947206] ? ktime_get_ts64+0x86/0x230 [ 25.947230] kunit_try_run_case+0x1a5/0x480 [ 25.947253] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.947273] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.947296] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.947319] ? __kthread_parkme+0x82/0x180 [ 25.947340] ? preempt_count_sub+0x50/0x80 [ 25.947361] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.947383] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.947407] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.947432] kthread+0x337/0x6f0 [ 25.947451] ? trace_preempt_on+0x20/0xc0 [ 25.947472] ? __pfx_kthread+0x10/0x10 [ 25.947491] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.947512] ? calculate_sigpending+0x7b/0xa0 [ 25.947536] ? __pfx_kthread+0x10/0x10 [ 25.947556] ret_from_fork+0x116/0x1d0 [ 25.947575] ? __pfx_kthread+0x10/0x10 [ 25.947594] ret_from_fork_asm+0x1a/0x30 [ 25.947625] </TASK> [ 25.947636] [ 25.962918] The buggy address belongs to stack of task kunit_try_catch/301 [ 25.963273] [ 25.963365] The buggy address belongs to the physical page: [ 25.963613] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1062bf [ 25.964080] flags: 0x200000000000000(node=0|zone=2) [ 25.964320] raw: 0200000000000000 ffffea000418afc8 ffffea000418afc8 0000000000000000 [ 25.964618] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 25.965175] page dumped because: kasan: bad access detected [ 25.965405] [ 25.965494] Memory state around the buggy address: [ 25.965705] ffff8881062bfb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.966074] ffff8881062bfb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.966362] >ffff8881062bfc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 25.966620] ^ [ 25.966856] ffff8881062bfc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 25.967117] ffff8881062bfd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 25.967418] ==================================================================