Date
July 15, 2025, 2:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.075873] ================================================================== [ 20.075934] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 20.075991] Read of size 1 at addr ffff8000809d7b4a by task kunit_try_catch/255 [ 20.076052] [ 20.076084] CPU: 0 UID: 0 PID: 255 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 20.076186] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.076232] Hardware name: linux,dummy-virt (DT) [ 20.076265] Call trace: [ 20.076288] show_stack+0x20/0x38 (C) [ 20.076799] dump_stack_lvl+0x8c/0xd0 [ 20.076902] print_report+0x310/0x5d0 [ 20.077012] kasan_report+0xdc/0x128 [ 20.077065] __asan_report_load1_noabort+0x20/0x30 [ 20.077145] kasan_alloca_oob_right+0x2dc/0x340 [ 20.077273] kunit_try_run_case+0x170/0x3f0 [ 20.077403] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.077480] kthread+0x328/0x630 [ 20.077599] ret_from_fork+0x10/0x20 [ 20.077651] [ 20.077697] The buggy address belongs to stack of task kunit_try_catch/255 [ 20.077763] [ 20.077783] The buggy address ffff8000809d7b4a belongs to a vmalloc virtual mapping [ 20.078007] The buggy address belongs to the physical page: [ 20.078080] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106627 [ 20.078186] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.078296] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.078435] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.078504] page dumped because: kasan: bad access detected [ 20.078616] [ 20.078655] Memory state around the buggy address: [ 20.078741] ffff8000809d7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.078795] ffff8000809d7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.079051] >ffff8000809d7b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 20.079128] ^ [ 20.079229] ffff8000809d7b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 20.079301] ffff8000809d7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 20.079531] ==================================================================
[ 12.833222] ================================================================== [ 12.833618] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 12.834570] Read of size 1 at addr ffff888103a1fc4a by task kunit_try_catch/272 [ 12.835539] [ 12.835776] CPU: 1 UID: 0 PID: 272 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 12.835828] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.835840] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.835859] Call Trace: [ 12.835871] <TASK> [ 12.835903] dump_stack_lvl+0x73/0xb0 [ 12.835927] print_report+0xd1/0x610 [ 12.835949] ? __virt_addr_valid+0x1db/0x2d0 [ 12.835970] ? kasan_alloca_oob_right+0x329/0x390 [ 12.835992] ? kasan_addr_to_slab+0x11/0xa0 [ 12.836013] ? kasan_alloca_oob_right+0x329/0x390 [ 12.836036] kasan_report+0x141/0x180 [ 12.836057] ? kasan_alloca_oob_right+0x329/0x390 [ 12.836084] __asan_report_load1_noabort+0x18/0x20 [ 12.836105] kasan_alloca_oob_right+0x329/0x390 [ 12.836129] ? finish_task_switch.isra.0+0x153/0x700 [ 12.836151] ? ww_mutex_unlock+0xce/0x150 [ 12.836171] ? trace_hardirqs_on+0x37/0xe0 [ 12.836195] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 12.836220] ? __schedule+0x10cc/0x2b60 [ 12.836243] ? __pfx_read_tsc+0x10/0x10 [ 12.836261] ? ktime_get_ts64+0x86/0x230 [ 12.836286] kunit_try_run_case+0x1a5/0x480 [ 12.836306] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.836324] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.836347] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.836370] ? __kthread_parkme+0x82/0x180 [ 12.836391] ? preempt_count_sub+0x50/0x80 [ 12.836415] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.836435] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.836499] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.836524] kthread+0x337/0x6f0 [ 12.836541] ? trace_preempt_on+0x20/0xc0 [ 12.836576] ? __pfx_kthread+0x10/0x10 [ 12.836594] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.836615] ? calculate_sigpending+0x7b/0xa0 [ 12.836636] ? __pfx_kthread+0x10/0x10 [ 12.836653] ret_from_fork+0x41/0x80 [ 12.836673] ? __pfx_kthread+0x10/0x10 [ 12.836700] ret_from_fork_asm+0x1a/0x30 [ 12.836732] </TASK> [ 12.836742] [ 12.847276] The buggy address belongs to stack of task kunit_try_catch/272 [ 12.847569] [ 12.847659] The buggy address belongs to the physical page: [ 12.848358] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a1f [ 12.848686] flags: 0x200000000000000(node=0|zone=2) [ 12.849277] raw: 0200000000000000 ffffea00040e87c8 ffffea00040e87c8 0000000000000000 [ 12.849946] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 12.850444] page dumped because: kasan: bad access detected [ 12.851040] [ 12.851134] Memory state around the buggy address: [ 12.851352] ffff888103a1fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.851640] ffff888103a1fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.852190] >ffff888103a1fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 12.852469] ^ [ 12.852701] ffff888103a1fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 12.853554] ffff888103a1fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 12.854218] ==================================================================