Date
July 8, 2025, 4:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.950495] ================================================================== [ 19.950576] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 19.950647] Read of size 1 at addr ffff8000808f7b5f by task kunit_try_catch/253 [ 19.950701] [ 19.950824] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT [ 19.951019] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.951082] Hardware name: linux,dummy-virt (DT) [ 19.951117] Call trace: [ 19.951146] show_stack+0x20/0x38 (C) [ 19.951227] dump_stack_lvl+0x8c/0xd0 [ 19.951299] print_report+0x310/0x608 [ 19.951362] kasan_report+0xdc/0x128 [ 19.951434] __asan_report_load1_noabort+0x20/0x30 [ 19.951508] kasan_alloca_oob_left+0x2b8/0x310 [ 19.951562] kunit_try_run_case+0x170/0x3f0 [ 19.951614] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.951687] kthread+0x328/0x630 [ 19.951741] ret_from_fork+0x10/0x20 [ 19.951792] [ 19.951925] The buggy address belongs to stack of task kunit_try_catch/253 [ 19.952002] [ 19.952118] The buggy address belongs to the virtual mapping at [ 19.952118] [ffff8000808f0000, ffff8000808f9000) created by: [ 19.952118] kernel_clone+0x150/0x7a8 [ 19.952240] [ 19.952287] The buggy address belongs to the physical page: [ 19.952351] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063a8 [ 19.952727] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.952914] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 19.953021] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 19.953082] page dumped because: kasan: bad access detected [ 19.953117] [ 19.953162] Memory state around the buggy address: [ 19.953195] ffff8000808f7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.953240] ffff8000808f7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.953419] >ffff8000808f7b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 19.953631] ^ [ 19.953750] ffff8000808f7b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 19.953836] ffff8000808f7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 19.953951] ==================================================================
[ 13.135592] ================================================================== [ 13.136175] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 13.136496] Read of size 1 at addr ffff888103c47c3f by task kunit_try_catch/271 [ 13.136814] [ 13.136974] CPU: 0 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G B N 6.15.6-rc1 #1 PREEMPT(voluntary) [ 13.137029] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.137042] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.137067] Call Trace: [ 13.137080] <TASK> [ 13.137097] dump_stack_lvl+0x73/0xb0 [ 13.137128] print_report+0xd1/0x650 [ 13.137153] ? __virt_addr_valid+0x1db/0x2d0 [ 13.137179] ? kasan_alloca_oob_left+0x320/0x380 [ 13.137202] ? kasan_addr_to_slab+0x11/0xa0 [ 13.137225] ? kasan_alloca_oob_left+0x320/0x380 [ 13.137249] kasan_report+0x141/0x180 [ 13.137273] ? kasan_alloca_oob_left+0x320/0x380 [ 13.137302] __asan_report_load1_noabort+0x18/0x20 [ 13.137325] kasan_alloca_oob_left+0x320/0x380 [ 13.137352] ? finish_task_switch.isra.0+0x153/0x700 [ 13.137379] ? ww_mutex_unlock+0x10e/0x150 [ 13.137400] ? trace_hardirqs_on+0x37/0xe0 [ 13.137428] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 13.137455] ? __schedule+0x10cc/0x2b60 [ 13.137480] ? __pfx_read_tsc+0x10/0x10 [ 13.137502] ? ktime_get_ts64+0x86/0x230 [ 13.137604] kunit_try_run_case+0x1a5/0x480 [ 13.137631] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.137652] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.137679] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.137704] ? __kthread_parkme+0x82/0x180 [ 13.137729] ? preempt_count_sub+0x50/0x80 [ 13.137755] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.137776] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.137802] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.137828] kthread+0x337/0x6f0 [ 13.137895] ? trace_preempt_on+0x20/0xc0 [ 13.137921] ? __pfx_kthread+0x10/0x10 [ 13.137941] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.137965] ? calculate_sigpending+0x7b/0xa0 [ 13.137989] ? __pfx_kthread+0x10/0x10 [ 13.138009] ret_from_fork+0x41/0x80 [ 13.138032] ? __pfx_kthread+0x10/0x10 [ 13.138052] ret_from_fork_asm+0x1a/0x30 [ 13.138084] </TASK> [ 13.138096] [ 13.147367] The buggy address belongs to stack of task kunit_try_catch/271 [ 13.147857] [ 13.148001] The buggy address belongs to the physical page: [ 13.148412] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103c47 [ 13.148828] flags: 0x200000000000000(node=0|zone=2) [ 13.149188] raw: 0200000000000000 ffffea00040f11c8 ffffea00040f11c8 0000000000000000 [ 13.149443] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.149950] page dumped because: kasan: bad access detected [ 13.150347] [ 13.150423] Memory state around the buggy address: [ 13.150624] ffff888103c47b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.151138] ffff888103c47b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.151798] >ffff888103c47c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.152261] ^ [ 13.152591] ffff888103c47c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.153118] ffff888103c47d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.153501] ==================================================================