Date
July 23, 2025, 2:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.629631] ================================================================== [ 17.630209] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 17.630479] Read of size 1 at addr ffff800080a57b5f by task kunit_try_catch/251 [ 17.630543] [ 17.630587] CPU: 0 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 17.630920] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.631092] Hardware name: linux,dummy-virt (DT) [ 17.631146] Call trace: [ 17.631174] show_stack+0x20/0x38 (C) [ 17.631238] dump_stack_lvl+0x8c/0xd0 [ 17.631288] print_report+0x310/0x5d0 [ 17.631345] kasan_report+0xdc/0x128 [ 17.631402] __asan_report_load1_noabort+0x20/0x30 [ 17.631486] kasan_alloca_oob_left+0x2b8/0x310 [ 17.631538] kunit_try_run_case+0x170/0x3f0 [ 17.631588] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.631644] kthread+0x328/0x630 [ 17.631687] ret_from_fork+0x10/0x20 [ 17.631762] [ 17.631803] The buggy address belongs to stack of task kunit_try_catch/251 [ 17.631909] [ 17.631934] The buggy address ffff800080a57b5f belongs to a vmalloc virtual mapping [ 17.631988] The buggy address belongs to the physical page: [ 17.632027] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103faa [ 17.632087] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.632151] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.632207] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.632273] page dumped because: kasan: bad access detected [ 17.632305] [ 17.632327] Memory state around the buggy address: [ 17.632361] ffff800080a57a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.632417] ffff800080a57a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.632474] >ffff800080a57b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 17.632523] ^ [ 17.632579] ffff800080a57b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.632639] ffff800080a57c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.632682] ==================================================================
[ 14.388420] ================================================================== [ 14.388881] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 14.389582] Read of size 1 at addr ffff888103af7c3f by task kunit_try_catch/268 [ 14.389901] [ 14.390013] CPU: 1 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 14.390058] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.390070] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.390093] Call Trace: [ 14.390106] <TASK> [ 14.390121] dump_stack_lvl+0x73/0xb0 [ 14.390151] print_report+0xd1/0x610 [ 14.390174] ? __virt_addr_valid+0x1db/0x2d0 [ 14.390197] ? kasan_alloca_oob_left+0x320/0x380 [ 14.390220] ? kasan_addr_to_slab+0x11/0xa0 [ 14.390241] ? kasan_alloca_oob_left+0x320/0x380 [ 14.390265] kasan_report+0x141/0x180 [ 14.390587] ? kasan_alloca_oob_left+0x320/0x380 [ 14.390617] __asan_report_load1_noabort+0x18/0x20 [ 14.390642] kasan_alloca_oob_left+0x320/0x380 [ 14.390665] ? __kasan_check_write+0x18/0x20 [ 14.390685] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.390708] ? finish_task_switch.isra.0+0x153/0x700 [ 14.390732] ? rt_mutex_adjust_prio_chain+0x195e/0x20e0 [ 14.390755] ? trace_hardirqs_on+0x37/0xe0 [ 14.390780] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 14.390804] ? __kasan_check_write+0x18/0x20 [ 14.390837] ? queued_spin_lock_slowpath+0x116/0xb40 [ 14.390864] ? trace_hardirqs_on+0x37/0xe0 [ 14.390887] ? __pfx_read_tsc+0x10/0x10 [ 14.390908] ? ktime_get_ts64+0x86/0x230 [ 14.390931] kunit_try_run_case+0x1a5/0x480 [ 14.390958] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.390984] ? queued_spin_lock_slowpath+0x116/0xb40 [ 14.391008] ? __kthread_parkme+0x82/0x180 [ 14.391029] ? preempt_count_sub+0x50/0x80 [ 14.391052] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.391077] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.391116] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.391141] kthread+0x337/0x6f0 [ 14.391161] ? trace_preempt_on+0x20/0xc0 [ 14.391184] ? __pfx_kthread+0x10/0x10 [ 14.391301] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.391332] ? calculate_sigpending+0x7b/0xa0 [ 14.391360] ? __pfx_kthread+0x10/0x10 [ 14.391383] ret_from_fork+0x116/0x1d0 [ 14.391403] ? __pfx_kthread+0x10/0x10 [ 14.391424] ret_from_fork_asm+0x1a/0x30 [ 14.391458] </TASK> [ 14.391470] [ 14.400079] The buggy address belongs to stack of task kunit_try_catch/268 [ 14.400427] [ 14.400526] The buggy address belongs to the physical page: [ 14.400786] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103af7 [ 14.401255] flags: 0x200000000000000(node=0|zone=2) [ 14.401457] raw: 0200000000000000 ffffea00040ebdc8 ffffea00040ebdc8 0000000000000000 [ 14.401774] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.402079] page dumped because: kasan: bad access detected [ 14.402312] [ 14.402385] Memory state around the buggy address: [ 14.402618] ffff888103af7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.403032] ffff888103af7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.403484] >ffff888103af7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.403873] ^ [ 14.404087] ffff888103af7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.404419] ffff888103af7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.404705] ==================================================================