Date
July 12, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.224321] ================================================================== [ 22.224611] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 22.224765] Read of size 1 at addr ffff800080ad7b4a by task kunit_try_catch/254 [ 22.224896] [ 22.224984] CPU: 1 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 22.225419] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.225499] Hardware name: linux,dummy-virt (DT) [ 22.225584] Call trace: [ 22.225661] show_stack+0x20/0x38 (C) [ 22.225866] dump_stack_lvl+0x8c/0xd0 [ 22.226023] print_report+0x310/0x608 [ 22.226172] kasan_report+0xdc/0x128 [ 22.226297] __asan_report_load1_noabort+0x20/0x30 [ 22.226405] kasan_alloca_oob_right+0x2dc/0x340 [ 22.226510] kunit_try_run_case+0x170/0x3f0 [ 22.226633] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.226736] kthread+0x328/0x630 [ 22.227160] ret_from_fork+0x10/0x20 [ 22.227300] [ 22.227360] The buggy address belongs to stack of task kunit_try_catch/254 [ 22.227488] [ 22.227566] The buggy address belongs to the virtual mapping at [ 22.227566] [ffff800080ad0000, ffff800080ad9000) created by: [ 22.227566] kernel_clone+0x150/0x7a8 [ 22.227798] [ 22.228055] The buggy address belongs to the physical page: [ 22.228275] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10592d [ 22.228481] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.228648] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 22.228895] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 22.229050] page dumped because: kasan: bad access detected [ 22.229189] [ 22.229231] Memory state around the buggy address: [ 22.229313] ffff800080ad7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.229519] ffff800080ad7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.229635] >ffff800080ad7b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 22.229733] ^ [ 22.230059] ffff800080ad7b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 22.230156] ffff800080ad7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 22.230241] ==================================================================
[ 14.497993] ================================================================== [ 14.498478] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.498799] Read of size 1 at addr ffff888103bb7c4a by task kunit_try_catch/271 [ 14.499469] [ 14.499563] CPU: 1 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.499610] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.499621] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.499643] Call Trace: [ 14.499668] <TASK> [ 14.499683] dump_stack_lvl+0x73/0xb0 [ 14.499713] print_report+0xd1/0x650 [ 14.499736] ? __virt_addr_valid+0x1db/0x2d0 [ 14.499773] ? kasan_alloca_oob_right+0x329/0x390 [ 14.499795] ? kasan_addr_to_slab+0x11/0xa0 [ 14.499816] ? kasan_alloca_oob_right+0x329/0x390 [ 14.499840] kasan_report+0x141/0x180 [ 14.499861] ? kasan_alloca_oob_right+0x329/0x390 [ 14.499889] __asan_report_load1_noabort+0x18/0x20 [ 14.499915] kasan_alloca_oob_right+0x329/0x390 [ 14.499937] ? __kasan_check_write+0x18/0x20 [ 14.499957] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.499980] ? finish_task_switch.isra.0+0x153/0x700 [ 14.500003] ? __schedule+0x202e/0x2b60 [ 14.500024] ? trace_hardirqs_on+0x37/0xe0 [ 14.500050] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.500077] ? __schedule+0x10cc/0x2b60 [ 14.500098] ? __pfx_read_tsc+0x10/0x10 [ 14.500118] ? ktime_get_ts64+0x86/0x230 [ 14.500141] kunit_try_run_case+0x1a5/0x480 [ 14.500165] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.500188] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.500212] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.500236] ? __kthread_parkme+0x82/0x180 [ 14.500257] ? preempt_count_sub+0x50/0x80 [ 14.500280] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.500305] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.500330] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.500355] kthread+0x337/0x6f0 [ 14.500374] ? trace_preempt_on+0x20/0xc0 [ 14.500396] ? __pfx_kthread+0x10/0x10 [ 14.500417] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.500438] ? calculate_sigpending+0x7b/0xa0 [ 14.500463] ? __pfx_kthread+0x10/0x10 [ 14.500493] ret_from_fork+0x116/0x1d0 [ 14.500511] ? __pfx_kthread+0x10/0x10 [ 14.500541] ret_from_fork_asm+0x1a/0x30 [ 14.500573] </TASK> [ 14.500590] [ 14.509270] The buggy address belongs to stack of task kunit_try_catch/271 [ 14.509551] [ 14.509774] The buggy address belongs to the physical page: [ 14.510030] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103bb7 [ 14.510349] flags: 0x200000000000000(node=0|zone=2) [ 14.510773] raw: 0200000000000000 ffffea00040eedc8 ffffea00040eedc8 0000000000000000 [ 14.511124] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.511471] page dumped because: kasan: bad access detected [ 14.511840] [ 14.511955] Memory state around the buggy address: [ 14.512183] ffff888103bb7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.512489] ffff888103bb7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.513030] >ffff888103bb7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.513313] ^ [ 14.513527] ffff888103bb7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.514015] ffff888103bb7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.514377] ==================================================================