Date
July 19, 2025, 11:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.458563] ================================================================== [ 17.458654] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 17.458743] Read of size 1 at addr ffff800080b57b5f by task kunit_try_catch/251 [ 17.458802] [ 17.458839] CPU: 0 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.458924] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.458963] Hardware name: linux,dummy-virt (DT) [ 17.458997] Call trace: [ 17.459023] show_stack+0x20/0x38 (C) [ 17.459073] dump_stack_lvl+0x8c/0xd0 [ 17.459122] print_report+0x310/0x5d0 [ 17.459170] kasan_report+0xdc/0x128 [ 17.459220] __asan_report_load1_noabort+0x20/0x30 [ 17.459283] kasan_alloca_oob_left+0x2b8/0x310 [ 17.459341] kunit_try_run_case+0x170/0x3f0 [ 17.459389] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.459445] kthread+0x328/0x630 [ 17.459493] ret_from_fork+0x10/0x20 [ 17.459543] [ 17.459576] The buggy address belongs to stack of task kunit_try_catch/251 [ 17.459645] [ 17.459665] The buggy address ffff800080b57b5f belongs to a vmalloc virtual mapping [ 17.459733] The buggy address belongs to the physical page: [ 17.459765] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078c7 [ 17.459821] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.459884] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.459935] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.459986] page dumped because: kasan: bad access detected [ 17.460019] [ 17.460047] Memory state around the buggy address: [ 17.460081] ffff800080b57a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.460132] ffff800080b57a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.460185] >ffff800080b57b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 17.460228] ^ [ 17.460269] ffff800080b57b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.460313] ffff800080b57c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.460353] ==================================================================
[ 13.819323] ================================================================== [ 13.819981] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 13.820253] Read of size 1 at addr ffff888103977c3f by task kunit_try_catch/268 [ 13.820591] [ 13.820735] CPU: 0 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.820778] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.820790] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.820809] Call Trace: [ 13.820820] <TASK> [ 13.820833] dump_stack_lvl+0x73/0xb0 [ 13.820861] print_report+0xd1/0x610 [ 13.820882] ? __virt_addr_valid+0x1db/0x2d0 [ 13.820904] ? kasan_alloca_oob_left+0x320/0x380 [ 13.820925] ? kasan_addr_to_slab+0x11/0xa0 [ 13.820945] ? kasan_alloca_oob_left+0x320/0x380 [ 13.820966] kasan_report+0x141/0x180 [ 13.820994] ? kasan_alloca_oob_left+0x320/0x380 [ 13.821031] __asan_report_load1_noabort+0x18/0x20 [ 13.821075] kasan_alloca_oob_left+0x320/0x380 [ 13.821098] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.821119] ? finish_task_switch.isra.0+0x153/0x700 [ 13.821141] ? rt_mutex_adjust_prio_chain+0x195e/0x20e0 [ 13.821163] ? trace_hardirqs_on+0x37/0xe0 [ 13.821186] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 13.821210] ? __schedule+0x10cc/0x2b60 [ 13.821231] ? __pfx_read_tsc+0x10/0x10 [ 13.821254] ? ktime_get_ts64+0x86/0x230 [ 13.821278] kunit_try_run_case+0x1a5/0x480 [ 13.821301] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.821323] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.821346] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.821368] ? __kthread_parkme+0x82/0x180 [ 13.821387] ? preempt_count_sub+0x50/0x80 [ 13.821410] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.821433] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.821455] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.821517] kthread+0x337/0x6f0 [ 13.821536] ? trace_preempt_on+0x20/0xc0 [ 13.821557] ? __pfx_kthread+0x10/0x10 [ 13.821577] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.821597] ? calculate_sigpending+0x7b/0xa0 [ 13.821620] ? __pfx_kthread+0x10/0x10 [ 13.821640] ret_from_fork+0x116/0x1d0 [ 13.821657] ? __pfx_kthread+0x10/0x10 [ 13.821677] ret_from_fork_asm+0x1a/0x30 [ 13.821705] </TASK> [ 13.821715] [ 13.832504] The buggy address belongs to stack of task kunit_try_catch/268 [ 13.833016] [ 13.833231] The buggy address belongs to the physical page: [ 13.833613] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103977 [ 13.834099] flags: 0x200000000000000(node=0|zone=2) [ 13.834630] raw: 0200000000000000 ffffea00040e5dc8 ffffea00040e5dc8 0000000000000000 [ 13.834944] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.835604] page dumped because: kasan: bad access detected [ 13.835841] [ 13.835911] Memory state around the buggy address: [ 13.836073] ffff888103977b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.836281] ffff888103977b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.836486] >ffff888103977c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.836690] ^ [ 13.836847] ffff888103977c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.837067] ffff888103977d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.837279] ==================================================================