Date
June 18, 2025, 6:43 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.148219] ================================================================== [ 23.148423] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 23.148583] Read of size 1 at addr ffff8000809c7b5f by task kunit_try_catch/261 [ 23.148804] [ 23.148907] CPU: 0 UID: 0 PID: 261 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc2-next-20250618 #1 PREEMPT [ 23.150095] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 23.150223] Hardware name: linux,dummy-virt (DT) [ 23.151153] Call trace: [ 23.151212] show_stack+0x20/0x38 (C) [ 23.151341] dump_stack_lvl+0x8c/0xd0 [ 23.151441] print_report+0x310/0x608 [ 23.151552] kasan_report+0xdc/0x128 [ 23.151692] __asan_report_load1_noabort+0x20/0x30 [ 23.151966] kasan_alloca_oob_left+0x2b8/0x310 [ 23.152108] kunit_try_run_case+0x170/0x3f0 [ 23.152238] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.152376] kthread+0x328/0x630 [ 23.152486] ret_from_fork+0x10/0x20 [ 23.152632] [ 23.152690] The buggy address belongs to stack of task kunit_try_catch/261 [ 23.152864] [ 23.152934] The buggy address belongs to the virtual mapping at [ 23.152934] [ffff8000809c0000, ffff8000809c9000) created by: [ 23.152934] kernel_clone+0x150/0x7a8 [ 23.153995] [ 23.154124] The buggy address belongs to the physical page: [ 23.154216] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107781 [ 23.154289] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 23.154439] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 23.155115] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 23.155256] page dumped because: kasan: bad access detected [ 23.155787] [ 23.156140] Memory state around the buggy address: [ 23.156587] ffff8000809c7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.156965] ffff8000809c7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.157197] >ffff8000809c7b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 23.157346] ^ [ 23.157978] ffff8000809c7b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 23.158261] ffff8000809c7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 23.158362] ==================================================================
[ 12.981301] ================================================================== [ 12.982020] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 12.982355] Read of size 1 at addr ffff888102b87c3f by task kunit_try_catch/277 [ 12.982870] [ 12.982962] CPU: 0 UID: 0 PID: 277 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250618 #1 PREEMPT(voluntary) [ 12.983012] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.983025] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.983047] Call Trace: [ 12.983059] <TASK> [ 12.983074] dump_stack_lvl+0x73/0xb0 [ 12.983103] print_report+0xd1/0x650 [ 12.983125] ? __virt_addr_valid+0x1db/0x2d0 [ 12.983149] ? kasan_alloca_oob_left+0x320/0x380 [ 12.983170] ? kasan_addr_to_slab+0x11/0xa0 [ 12.983190] ? kasan_alloca_oob_left+0x320/0x380 [ 12.983223] kasan_report+0x141/0x180 [ 12.983244] ? kasan_alloca_oob_left+0x320/0x380 [ 12.983269] __asan_report_load1_noabort+0x18/0x20 [ 12.983293] kasan_alloca_oob_left+0x320/0x380 [ 12.983315] ? __pfx_sched_clock_cpu+0x10/0x10 [ 12.983337] ? finish_task_switch.isra.0+0x153/0x700 [ 12.983361] ? rt_mutex_adjust_prio_chain+0x7ee/0x20e0 [ 12.983388] ? trace_hardirqs_on+0x37/0xe0 [ 12.983413] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 12.983437] ? __schedule+0x10cc/0x2b60 [ 12.983457] ? __pfx_read_tsc+0x10/0x10 [ 12.983479] ? ktime_get_ts64+0x86/0x230 [ 12.983504] kunit_try_run_case+0x1a5/0x480 [ 12.983529] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.983551] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.983573] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.983594] ? __kthread_parkme+0x82/0x180 [ 12.983616] ? preempt_count_sub+0x50/0x80 [ 12.983639] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.983662] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.983684] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.983706] kthread+0x337/0x6f0 [ 12.983725] ? trace_preempt_on+0x20/0xc0 [ 12.983747] ? __pfx_kthread+0x10/0x10 [ 12.983767] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.983786] ? calculate_sigpending+0x7b/0xa0 [ 12.983811] ? __pfx_kthread+0x10/0x10 [ 12.983831] ret_from_fork+0x116/0x1d0 [ 12.983850] ? __pfx_kthread+0x10/0x10 [ 12.983869] ret_from_fork_asm+0x1a/0x30 [ 12.983900] </TASK> [ 12.983910] [ 12.993365] The buggy address belongs to stack of task kunit_try_catch/277 [ 12.993659] [ 12.993741] The buggy address belongs to the physical page: [ 12.993964] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b87 [ 12.994556] flags: 0x200000000000000(node=0|zone=2) [ 12.994981] raw: 0200000000000000 dead000000000100 dead000000000122 0000000000000000 [ 12.995486] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 12.995940] page dumped because: kasan: bad access detected [ 12.996354] [ 12.996567] Memory state around the buggy address: [ 12.996784] ffff888102b87b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.997063] ffff888102b87b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.997609] >ffff888102b87c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 12.998062] ^ [ 12.998476] ffff888102b87c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 12.998921] ffff888102b87d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 12.999359] ==================================================================