Date
May 12, 2025, 11:48 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.971545] ================================================================== [ 18.971645] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 18.971710] Read of size 1 at addr ffff800080ab7b5f by task kunit_try_catch/251 [ 18.971763] [ 18.971804] CPU: 0 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT [ 18.971890] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.971918] Hardware name: linux,dummy-virt (DT) [ 18.971953] Call trace: [ 18.971977] show_stack+0x20/0x38 (C) [ 18.972027] dump_stack_lvl+0x8c/0xd0 [ 18.972092] print_report+0x310/0x608 [ 18.972139] kasan_report+0xdc/0x128 [ 18.972326] __asan_report_load1_noabort+0x20/0x30 [ 18.972390] kasan_alloca_oob_left+0x2b8/0x310 [ 18.972440] kunit_try_run_case+0x170/0x3f0 [ 18.972487] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.972540] kthread+0x328/0x630 [ 18.972586] ret_from_fork+0x10/0x20 [ 18.972636] [ 18.972660] The buggy address belongs to stack of task kunit_try_catch/251 [ 18.972728] [ 18.972755] The buggy address belongs to the virtual mapping at [ 18.972755] [ffff800080ab0000, ffff800080ab9000) created by: [ 18.972755] kernel_clone+0x150/0x7a8 [ 18.972830] [ 18.972854] The buggy address belongs to the physical page: [ 18.972884] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10795e [ 18.972936] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.973000] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 18.973063] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 18.973108] page dumped because: kasan: bad access detected [ 18.973144] [ 18.973164] Memory state around the buggy address: [ 18.973197] ffff800080ab7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.973241] ffff800080ab7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.973285] >ffff800080ab7b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 18.973611] ^ [ 18.973656] ffff800080ab7b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 18.973703] ffff800080ab7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 18.973743] ==================================================================
[ 18.822713] ================================================================== [ 18.823581] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 18.824337] Read of size 1 at addr ffff888103bb7c3f by task kunit_try_catch/268 [ 18.825299] [ 18.825495] CPU: 1 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT(voluntary) [ 18.825633] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.825659] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.825702] Call Trace: [ 18.825732] <TASK> [ 18.825768] dump_stack_lvl+0x73/0xb0 [ 18.825820] print_report+0xd1/0x650 [ 18.825847] ? __virt_addr_valid+0x1db/0x2d0 [ 18.825872] ? kasan_alloca_oob_left+0x320/0x380 [ 18.825897] ? kasan_addr_to_slab+0x11/0xa0 [ 18.825930] ? kasan_alloca_oob_left+0x320/0x380 [ 18.825970] kasan_report+0x141/0x180 [ 18.826028] ? kasan_alloca_oob_left+0x320/0x380 [ 18.826102] __asan_report_load1_noabort+0x18/0x20 [ 18.826138] kasan_alloca_oob_left+0x320/0x380 [ 18.826167] ? __pfx_sched_clock_cpu+0x10/0x10 [ 18.826191] ? finish_task_switch.isra.0+0x153/0x700 [ 18.826216] ? schedule+0x1ee/0x2e0 [ 18.826238] ? trace_hardirqs_on+0x37/0xe0 [ 18.826278] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 18.826307] ? __schedule+0x10cc/0x2b60 [ 18.826330] ? __pfx_read_tsc+0x10/0x10 [ 18.826353] ? ktime_get_ts64+0x86/0x230 [ 18.826379] kunit_try_run_case+0x1a5/0x480 [ 18.826406] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.826431] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 18.826454] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 18.826478] ? __kthread_parkme+0x82/0x180 [ 18.826500] ? preempt_count_sub+0x50/0x80 [ 18.826524] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.826550] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.826575] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 18.826599] kthread+0x337/0x6f0 [ 18.826621] ? trace_preempt_on+0x20/0xc0 [ 18.826644] ? __pfx_kthread+0x10/0x10 [ 18.826675] ? _raw_spin_unlock_irq+0x47/0x80 [ 18.826707] ? calculate_sigpending+0x7b/0xa0 [ 18.826734] ? __pfx_kthread+0x10/0x10 [ 18.826757] ret_from_fork+0x116/0x1d0 [ 18.826776] ? __pfx_kthread+0x10/0x10 [ 18.826798] ret_from_fork_asm+0x1a/0x30 [ 18.826830] </TASK> [ 18.826844] [ 18.840502] The buggy address belongs to stack of task kunit_try_catch/268 [ 18.841013] [ 18.841114] The buggy address belongs to the physical page: [ 18.841320] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103bb7 [ 18.842153] flags: 0x200000000000000(node=0|zone=2) [ 18.842572] raw: 0200000000000000 ffffea00040eedc8 ffffea00040eedc8 0000000000000000 [ 18.842952] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 18.843653] page dumped because: kasan: bad access detected [ 18.843861] [ 18.843948] Memory state around the buggy address: [ 18.844119] ffff888103bb7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.844383] ffff888103bb7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.845514] >ffff888103bb7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 18.845992] ^ [ 18.846632] ffff888103bb7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 18.847307] ffff888103bb7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 18.847786] ==================================================================