Date
July 16, 2025, 3:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.753745] ================================================================== [ 18.753834] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 18.753893] Read of size 1 at addr ffff800080a37b5f by task kunit_try_catch/251 [ 18.754313] [ 18.754383] CPU: 1 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 18.754798] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.754841] Hardware name: linux,dummy-virt (DT) [ 18.754964] Call trace: [ 18.755012] show_stack+0x20/0x38 (C) [ 18.755086] dump_stack_lvl+0x8c/0xd0 [ 18.755396] print_report+0x310/0x5d0 [ 18.755511] kasan_report+0xdc/0x128 [ 18.755606] __asan_report_load1_noabort+0x20/0x30 [ 18.756043] kasan_alloca_oob_left+0x2b8/0x310 [ 18.756138] kunit_try_run_case+0x170/0x3f0 [ 18.756509] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.756643] kthread+0x328/0x630 [ 18.756956] ret_from_fork+0x10/0x20 [ 18.757146] [ 18.757409] The buggy address belongs to stack of task kunit_try_catch/251 [ 18.757578] [ 18.757647] The buggy address ffff800080a37b5f belongs to a vmalloc virtual mapping [ 18.757802] The buggy address belongs to the physical page: [ 18.757963] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107842 [ 18.758131] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.758462] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 18.758682] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 18.758798] page dumped because: kasan: bad access detected [ 18.758925] [ 18.759081] Memory state around the buggy address: [ 18.759128] ffff800080a37a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.759540] ffff800080a37a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.759676] >ffff800080a37b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 18.759836] ^ [ 18.759901] ffff800080a37b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 18.759955] ffff800080a37c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 18.760077] ==================================================================
[ 14.449617] ================================================================== [ 14.450904] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 14.451692] Read of size 1 at addr ffff88810398fc3f by task kunit_try_catch/268 [ 14.452330] [ 14.452543] CPU: 1 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 14.452598] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.452610] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.452630] Call Trace: [ 14.452643] <TASK> [ 14.452660] dump_stack_lvl+0x73/0xb0 [ 14.452692] print_report+0xd1/0x610 [ 14.452716] ? __virt_addr_valid+0x1db/0x2d0 [ 14.452740] ? kasan_alloca_oob_left+0x320/0x380 [ 14.452775] ? kasan_addr_to_slab+0x11/0xa0 [ 14.452796] ? kasan_alloca_oob_left+0x320/0x380 [ 14.452820] kasan_report+0x141/0x180 [ 14.452842] ? kasan_alloca_oob_left+0x320/0x380 [ 14.452871] __asan_report_load1_noabort+0x18/0x20 [ 14.452897] kasan_alloca_oob_left+0x320/0x380 [ 14.452920] ? __kasan_check_write+0x18/0x20 [ 14.452940] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.452964] ? finish_task_switch.isra.0+0x153/0x700 [ 14.452989] ? __schedule+0x200e/0x2b60 [ 14.453011] ? trace_hardirqs_on+0x37/0xe0 [ 14.453038] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 14.453062] ? __kasan_check_write+0x18/0x20 [ 14.453083] ? queued_spin_lock_slowpath+0x116/0xb40 [ 14.453110] ? trace_hardirqs_on+0x37/0xe0 [ 14.453134] ? __pfx_read_tsc+0x10/0x10 [ 14.453156] ? ktime_get_ts64+0x86/0x230 [ 14.453180] kunit_try_run_case+0x1a5/0x480 [ 14.453207] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.453234] ? queued_spin_lock_slowpath+0x116/0xb40 [ 14.453258] ? __kthread_parkme+0x82/0x180 [ 14.453279] ? preempt_count_sub+0x50/0x80 [ 14.453303] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.453328] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.453354] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.453380] kthread+0x337/0x6f0 [ 14.453401] ? trace_preempt_on+0x20/0xc0 [ 14.453424] ? __pfx_kthread+0x10/0x10 [ 14.453454] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.453477] ? calculate_sigpending+0x7b/0xa0 [ 14.453503] ? __pfx_kthread+0x10/0x10 [ 14.453524] ret_from_fork+0x116/0x1d0 [ 14.453544] ? __pfx_kthread+0x10/0x10 [ 14.453565] ret_from_fork_asm+0x1a/0x30 [ 14.453597] </TASK> [ 14.453609] [ 14.466245] The buggy address belongs to stack of task kunit_try_catch/268 [ 14.466701] [ 14.466786] The buggy address belongs to the physical page: [ 14.466964] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10398f [ 14.467214] flags: 0x200000000000000(node=0|zone=2) [ 14.467389] raw: 0200000000000000 ffffea00040e63c8 ffffea00040e63c8 0000000000000000 [ 14.468038] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.468748] page dumped because: kasan: bad access detected [ 14.469321] [ 14.469515] Memory state around the buggy address: [ 14.469964] ffff88810398fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.470614] ffff88810398fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.471233] >ffff88810398fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.471938] ^ [ 14.472105] ffff88810398fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.472322] ffff88810398fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.472786] ==================================================================