Date
July 20, 2025, 8:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.412128] ================================================================== [ 17.412202] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 17.412255] Read of size 1 at addr ffff800080a17b4a by task kunit_try_catch/254 [ 17.412306] [ 17.412339] CPU: 0 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.412423] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.412451] Hardware name: linux,dummy-virt (DT) [ 17.412484] Call trace: [ 17.412587] show_stack+0x20/0x38 (C) [ 17.412660] dump_stack_lvl+0x8c/0xd0 [ 17.412709] print_report+0x310/0x5d0 [ 17.412769] kasan_report+0xdc/0x128 [ 17.412827] __asan_report_load1_noabort+0x20/0x30 [ 17.413527] kasan_alloca_oob_right+0x2dc/0x340 [ 17.413661] kunit_try_run_case+0x170/0x3f0 [ 17.413975] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.414077] kthread+0x328/0x630 [ 17.414139] ret_from_fork+0x10/0x20 [ 17.414285] [ 17.414356] The buggy address belongs to stack of task kunit_try_catch/254 [ 17.414508] [ 17.414532] The buggy address ffff800080a17b4a belongs to a vmalloc virtual mapping [ 17.414585] The buggy address belongs to the physical page: [ 17.414943] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1076ff [ 17.415010] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.415402] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.415557] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.415621] page dumped because: kasan: bad access detected [ 17.415696] [ 17.415839] Memory state around the buggy address: [ 17.415905] ffff800080a17a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.416011] ffff800080a17a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.416424] >ffff800080a17b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 17.416521] ^ [ 17.416601] ffff800080a17b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.416743] ffff800080a17c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.416840] ==================================================================
[ 14.809455] ================================================================== [ 14.810163] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.810658] Read of size 1 at addr ffff888103937c4a by task kunit_try_catch/271 [ 14.811303] [ 14.811440] CPU: 1 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 14.811503] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.811515] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.811540] Call Trace: [ 14.811554] <TASK> [ 14.811571] dump_stack_lvl+0x73/0xb0 [ 14.811739] print_report+0xd1/0x610 [ 14.811772] ? __virt_addr_valid+0x1db/0x2d0 [ 14.811797] ? kasan_alloca_oob_right+0x329/0x390 [ 14.811820] ? kasan_addr_to_slab+0x11/0xa0 [ 14.811840] ? kasan_alloca_oob_right+0x329/0x390 [ 14.811864] kasan_report+0x141/0x180 [ 14.811886] ? kasan_alloca_oob_right+0x329/0x390 [ 14.811912] __asan_report_load1_noabort+0x18/0x20 [ 14.811937] kasan_alloca_oob_right+0x329/0x390 [ 14.811959] ? __kasan_check_write+0x18/0x20 [ 14.811980] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.812003] ? finish_task_switch.isra.0+0x153/0x700 [ 14.812026] ? rt_mutex_adjust_prio_chain+0x195e/0x20e0 [ 14.812153] ? trace_hardirqs_on+0x37/0xe0 [ 14.812180] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.812206] ? __schedule+0x10c6/0x2b60 [ 14.812229] ? __pfx_read_tsc+0x10/0x10 [ 14.812251] ? ktime_get_ts64+0x86/0x230 [ 14.812276] kunit_try_run_case+0x1a5/0x480 [ 14.812305] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.812328] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.812352] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.812377] ? __kthread_parkme+0x82/0x180 [ 14.812398] ? preempt_count_sub+0x50/0x80 [ 14.812421] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.812445] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.812481] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.812506] kthread+0x337/0x6f0 [ 14.812525] ? trace_preempt_on+0x20/0xc0 [ 14.812547] ? __pfx_kthread+0x10/0x10 [ 14.812568] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.812591] ? calculate_sigpending+0x7b/0xa0 [ 14.812614] ? __pfx_kthread+0x10/0x10 [ 14.812636] ret_from_fork+0x116/0x1d0 [ 14.812655] ? __pfx_kthread+0x10/0x10 [ 14.812676] ret_from_fork_asm+0x1a/0x30 [ 14.812706] </TASK> [ 14.812717] [ 14.826280] The buggy address belongs to stack of task kunit_try_catch/271 [ 14.826620] [ 14.826726] The buggy address belongs to the physical page: [ 14.827297] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103937 [ 14.827754] flags: 0x200000000000000(node=0|zone=2) [ 14.828309] raw: 0200000000000000 ffffea00040e4dc8 ffffea00040e4dc8 0000000000000000 [ 14.828688] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.829347] page dumped because: kasan: bad access detected [ 14.829717] [ 14.830025] Memory state around the buggy address: [ 14.830320] ffff888103937b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.830741] ffff888103937b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.831262] >ffff888103937c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.831580] ^ [ 14.831831] ffff888103937c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.832575] ffff888103937d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.833001] ==================================================================