Date
July 17, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.810887] ================================================================== [ 17.810950] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 17.811027] Read of size 1 at addr ffff800080a27b4a by task kunit_try_catch/254 [ 17.811083] [ 17.811118] CPU: 0 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.811206] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.811236] Hardware name: linux,dummy-virt (DT) [ 17.811269] Call trace: [ 17.811294] show_stack+0x20/0x38 (C) [ 17.811343] dump_stack_lvl+0x8c/0xd0 [ 17.811390] print_report+0x310/0x5d0 [ 17.811445] kasan_report+0xdc/0x128 [ 17.811493] __asan_report_load1_noabort+0x20/0x30 [ 17.811546] kasan_alloca_oob_right+0x2dc/0x340 [ 17.811595] kunit_try_run_case+0x170/0x3f0 [ 17.811672] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.811729] kthread+0x328/0x630 [ 17.811919] ret_from_fork+0x10/0x20 [ 17.812091] [ 17.812115] The buggy address belongs to stack of task kunit_try_catch/254 [ 17.812245] [ 17.812291] The buggy address ffff800080a27b4a belongs to a vmalloc virtual mapping [ 17.812339] The buggy address belongs to the physical page: [ 17.812558] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107826 [ 17.812667] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.812859] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.812932] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.812989] page dumped because: kasan: bad access detected [ 17.813038] [ 17.813058] Memory state around the buggy address: [ 17.813093] ffff800080a27a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.813155] ffff800080a27a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.813201] >ffff800080a27b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 17.813241] ^ [ 17.813285] ffff800080a27b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.813331] ffff800080a27c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.813374] ==================================================================
[ 14.918168] ================================================================== [ 14.919044] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.919347] Read of size 1 at addr ffff888103937c4a by task kunit_try_catch/270 [ 14.920016] [ 14.920140] CPU: 0 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 14.920184] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.920198] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.920218] Call Trace: [ 14.920231] <TASK> [ 14.920245] dump_stack_lvl+0x73/0xb0 [ 14.920277] print_report+0xd1/0x610 [ 14.920300] ? __virt_addr_valid+0x1db/0x2d0 [ 14.920324] ? kasan_alloca_oob_right+0x329/0x390 [ 14.920347] ? kasan_addr_to_slab+0x11/0xa0 [ 14.920420] ? kasan_alloca_oob_right+0x329/0x390 [ 14.920444] kasan_report+0x141/0x180 [ 14.920467] ? kasan_alloca_oob_right+0x329/0x390 [ 14.920495] __asan_report_load1_noabort+0x18/0x20 [ 14.920520] kasan_alloca_oob_right+0x329/0x390 [ 14.920546] ? finish_task_switch.isra.0+0x153/0x700 [ 14.920586] ? __schedule+0x200e/0x2b60 [ 14.920607] ? trace_hardirqs_on+0x37/0xe0 [ 14.920633] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.920660] ? __schedule+0x10cc/0x2b60 [ 14.920681] ? __pfx_read_tsc+0x10/0x10 [ 14.920705] ? ktime_get_ts64+0x86/0x230 [ 14.920728] kunit_try_run_case+0x1a5/0x480 [ 14.920752] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.920776] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.920800] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.920825] ? __kthread_parkme+0x82/0x180 [ 14.920847] ? preempt_count_sub+0x50/0x80 [ 14.920871] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.920896] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.920921] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.920948] kthread+0x337/0x6f0 [ 14.920968] ? trace_preempt_on+0x20/0xc0 [ 14.920991] ? __pfx_kthread+0x10/0x10 [ 14.921012] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.921035] ? calculate_sigpending+0x7b/0xa0 [ 14.921060] ? __pfx_kthread+0x10/0x10 [ 14.921082] ret_from_fork+0x116/0x1d0 [ 14.921102] ? __pfx_kthread+0x10/0x10 [ 14.921122] ret_from_fork_asm+0x1a/0x30 [ 14.921154] </TASK> [ 14.921165] [ 14.932228] The buggy address belongs to stack of task kunit_try_catch/270 [ 14.932784] [ 14.932909] The buggy address belongs to the physical page: [ 14.933370] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103937 [ 14.933836] flags: 0x200000000000000(node=0|zone=2) [ 14.934401] raw: 0200000000000000 ffffea00040e4dc8 ffffea00040e4dc8 0000000000000000 [ 14.934922] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.935163] page dumped because: kasan: bad access detected [ 14.935758] [ 14.935999] Memory state around the buggy address: [ 14.936654] ffff888103937b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.937450] ffff888103937b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.937929] >ffff888103937c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.938789] ^ [ 14.939389] ffff888103937c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.939886] ffff888103937d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.940116] ==================================================================