Date
July 9, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.787626] ================================================================== [ 18.788036] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 18.788126] Read of size 1 at addr ffff800080a17b4a by task kunit_try_catch/253 [ 18.788183] [ 18.788222] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.788670] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.788761] Hardware name: linux,dummy-virt (DT) [ 18.788934] Call trace: [ 18.789024] show_stack+0x20/0x38 (C) [ 18.789085] dump_stack_lvl+0x8c/0xd0 [ 18.789151] print_report+0x310/0x608 [ 18.789207] kasan_report+0xdc/0x128 [ 18.789371] __asan_report_load1_noabort+0x20/0x30 [ 18.789462] kasan_alloca_oob_right+0x2dc/0x340 [ 18.789528] kunit_try_run_case+0x170/0x3f0 [ 18.789579] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.789634] kthread+0x328/0x630 [ 18.789696] ret_from_fork+0x10/0x20 [ 18.789748] [ 18.789783] The buggy address belongs to stack of task kunit_try_catch/253 [ 18.789838] [ 18.789878] The buggy address belongs to the virtual mapping at [ 18.789878] [ffff800080a10000, ffff800080a19000) created by: [ 18.789878] kernel_clone+0x150/0x7a8 [ 18.789964] [ 18.789995] The buggy address belongs to the physical page: [ 18.790028] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106ce9 [ 18.790094] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.790534] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 18.790599] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 18.791104] page dumped because: kasan: bad access detected [ 18.791541] [ 18.791623] Memory state around the buggy address: [ 18.791837] ffff800080a17a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.791915] ffff800080a17a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.791961] >ffff800080a17b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 18.792003] ^ [ 18.792040] ffff800080a17b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 18.792445] ffff800080a17c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 18.792593] ==================================================================
[ 14.388912] ================================================================== [ 14.389615] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.389912] Read of size 1 at addr ffff8881039dfc4a by task kunit_try_catch/270 [ 14.390241] [ 14.390411] CPU: 0 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.390457] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.390469] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.390489] Call Trace: [ 14.390501] <TASK> [ 14.390515] dump_stack_lvl+0x73/0xb0 [ 14.390545] print_report+0xd1/0x650 [ 14.390568] ? __virt_addr_valid+0x1db/0x2d0 [ 14.390590] ? kasan_alloca_oob_right+0x329/0x390 [ 14.390613] ? kasan_addr_to_slab+0x11/0xa0 [ 14.390633] ? kasan_alloca_oob_right+0x329/0x390 [ 14.390657] kasan_report+0x141/0x180 [ 14.390678] ? kasan_alloca_oob_right+0x329/0x390 [ 14.390716] __asan_report_load1_noabort+0x18/0x20 [ 14.390741] kasan_alloca_oob_right+0x329/0x390 [ 14.390763] ? __kasan_check_write+0x18/0x20 [ 14.390783] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.390806] ? finish_task_switch.isra.0+0x153/0x700 [ 14.390829] ? preempt_schedule_common+0xbe/0x110 [ 14.390853] ? trace_hardirqs_on+0x37/0xe0 [ 14.390880] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.390903] ? __kasan_check_write+0x18/0x20 [ 14.390922] ? queued_spin_lock_slowpath+0x116/0xb40 [ 14.390949] ? __pfx_queued_spin_lock_slowpath+0x10/0x10 [ 14.390974] ? __pfx_read_tsc+0x10/0x10 [ 14.390995] ? ktime_get_ts64+0x86/0x230 [ 14.391019] kunit_try_run_case+0x1a5/0x480 [ 14.391044] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.391067] ? _raw_spin_lock_irqsave+0xf9/0x100 [ 14.391146] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.391171] ? __kthread_parkme+0x82/0x180 [ 14.391193] ? preempt_count_sub+0x50/0x80 [ 14.391216] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.391241] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.391267] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.391292] kthread+0x337/0x6f0 [ 14.391311] ? trace_preempt_on+0x20/0xc0 [ 14.391334] ? __pfx_kthread+0x10/0x10 [ 14.391354] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.391375] ? calculate_sigpending+0x7b/0xa0 [ 14.391399] ? __pfx_kthread+0x10/0x10 [ 14.391420] ret_from_fork+0x116/0x1d0 [ 14.391439] ? __pfx_kthread+0x10/0x10 [ 14.391459] ret_from_fork_asm+0x1a/0x30 [ 14.391489] </TASK> [ 14.391500] [ 14.403323] The buggy address belongs to stack of task kunit_try_catch/270 [ 14.403547] [ 14.403617] The buggy address belongs to the physical page: [ 14.403797] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039df [ 14.404030] flags: 0x200000000000000(node=0|zone=2) [ 14.404196] raw: 0200000000000000 ffffea00040e77c8 ffffea00040e77c8 0000000000000000 [ 14.404435] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.404650] page dumped because: kasan: bad access detected [ 14.405658] [ 14.405750] Memory state around the buggy address: [ 14.405901] ffff8881039dfb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.406210] ffff8881039dfb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.406468] >ffff8881039dfc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.406691] ^ [ 14.406948] ffff8881039dfc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.407415] ffff8881039dfd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.408893] ==================================================================