Date
June 16, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.179242] ================================================================== [ 22.179330] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 22.179415] Read of size 1 at addr ffff800080a47b4a by task kunit_try_catch/262 [ 22.179482] [ 22.179538] CPU: 0 UID: 0 PID: 262 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT [ 22.179651] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.179687] Hardware name: linux,dummy-virt (DT) [ 22.179732] Call trace: [ 22.179767] show_stack+0x20/0x38 (C) [ 22.179833] dump_stack_lvl+0x8c/0xd0 [ 22.179947] print_report+0x310/0x608 [ 22.180006] kasan_report+0xdc/0x128 [ 22.180062] __asan_report_load1_noabort+0x20/0x30 [ 22.180120] kasan_alloca_oob_right+0x2dc/0x340 [ 22.180181] kunit_try_run_case+0x170/0x3f0 [ 22.180240] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.180302] kthread+0x328/0x630 [ 22.180351] ret_from_fork+0x10/0x20 [ 22.180413] [ 22.180445] The buggy address belongs to stack of task kunit_try_catch/262 [ 22.180508] [ 22.180541] The buggy address belongs to the virtual mapping at [ 22.180541] [ffff800080a40000, ffff800080a49000) created by: [ 22.180541] kernel_clone+0x150/0x7a8 [ 22.180631] [ 22.180660] The buggy address belongs to the physical page: [ 22.180702] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063f4 [ 22.180766] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.182179] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 22.182526] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 22.182619] page dumped because: kasan: bad access detected [ 22.182780] [ 22.183131] Memory state around the buggy address: [ 22.183206] ffff800080a47a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.183268] ffff800080a47a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.183347] >ffff800080a47b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 22.183397] ^ [ 22.183447] ffff800080a47b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 22.183742] ffff800080a47c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 22.183806] ==================================================================
[ 13.350355] ================================================================== [ 13.350992] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 13.351321] Read of size 1 at addr ffff8881039e7c4a by task kunit_try_catch/278 [ 13.351949] [ 13.352174] CPU: 0 UID: 0 PID: 278 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT(voluntary) [ 13.352229] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.352241] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.352263] Call Trace: [ 13.352373] <TASK> [ 13.352395] dump_stack_lvl+0x73/0xb0 [ 13.352430] print_report+0xd1/0x650 [ 13.352474] ? __virt_addr_valid+0x1db/0x2d0 [ 13.352500] ? kasan_alloca_oob_right+0x329/0x390 [ 13.352562] ? kasan_addr_to_slab+0x11/0xa0 [ 13.352584] ? kasan_alloca_oob_right+0x329/0x390 [ 13.352606] kasan_report+0x141/0x180 [ 13.352628] ? kasan_alloca_oob_right+0x329/0x390 [ 13.352655] __asan_report_load1_noabort+0x18/0x20 [ 13.352678] kasan_alloca_oob_right+0x329/0x390 [ 13.352698] ? __kasan_check_write+0x18/0x20 [ 13.352718] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.352741] ? finish_task_switch.isra.0+0x153/0x700 [ 13.352764] ? rwsem_down_read_slowpath+0x58e/0xb90 [ 13.352789] ? trace_hardirqs_on+0x37/0xe0 [ 13.352815] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 13.352839] ? __schedule+0x10cc/0x2b60 [ 13.352860] ? __pfx_read_tsc+0x10/0x10 [ 13.352882] ? ktime_get_ts64+0x86/0x230 [ 13.352907] kunit_try_run_case+0x1a5/0x480 [ 13.352944] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.352966] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.352987] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.353009] ? __kthread_parkme+0x82/0x180 [ 13.353031] ? preempt_count_sub+0x50/0x80 [ 13.353053] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.353076] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.353098] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.353121] kthread+0x337/0x6f0 [ 13.353139] ? trace_preempt_on+0x20/0xc0 [ 13.353161] ? __pfx_kthread+0x10/0x10 [ 13.353181] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.353201] ? calculate_sigpending+0x7b/0xa0 [ 13.353225] ? __pfx_kthread+0x10/0x10 [ 13.353245] ret_from_fork+0x116/0x1d0 [ 13.353264] ? __pfx_kthread+0x10/0x10 [ 13.353283] ret_from_fork_asm+0x1a/0x30 [ 13.353316] </TASK> [ 13.353327] [ 13.364858] The buggy address belongs to stack of task kunit_try_catch/278 [ 13.365767] [ 13.365996] The buggy address belongs to the physical page: [ 13.366452] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039e7 [ 13.366969] flags: 0x200000000000000(node=0|zone=2) [ 13.367209] raw: 0200000000000000 ffffea00040e79c8 ffffea00040e79c8 0000000000000000 [ 13.367974] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.368448] page dumped because: kasan: bad access detected [ 13.368819] [ 13.368910] Memory state around the buggy address: [ 13.369120] ffff8881039e7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.369899] ffff8881039e7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.370297] >ffff8881039e7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.371053] ^ [ 13.371361] ffff8881039e7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.371704] ffff8881039e7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.371994] ==================================================================