Date
July 4, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.266880] ================================================================== [ 20.267007] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 20.267094] Read of size 1 at addr ffff800080a77b4a by task kunit_try_catch/253 [ 20.267146] [ 20.267200] CPU: 1 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 20.267291] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.267329] Hardware name: linux,dummy-virt (DT) [ 20.267365] Call trace: [ 20.267800] show_stack+0x20/0x38 (C) [ 20.268068] dump_stack_lvl+0x8c/0xd0 [ 20.268203] print_report+0x310/0x608 [ 20.268275] kasan_report+0xdc/0x128 [ 20.268440] __asan_report_load1_noabort+0x20/0x30 [ 20.268599] kasan_alloca_oob_right+0x2dc/0x340 [ 20.268670] kunit_try_run_case+0x170/0x3f0 [ 20.268764] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.269054] kthread+0x328/0x630 [ 20.269217] ret_from_fork+0x10/0x20 [ 20.269444] [ 20.269529] The buggy address belongs to stack of task kunit_try_catch/253 [ 20.269687] [ 20.269747] The buggy address belongs to the virtual mapping at [ 20.269747] [ffff800080a70000, ffff800080a79000) created by: [ 20.269747] kernel_clone+0x150/0x7a8 [ 20.269837] [ 20.269859] The buggy address belongs to the physical page: [ 20.269900] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106f35 [ 20.269961] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.270037] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 20.270087] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 20.270138] page dumped because: kasan: bad access detected [ 20.270182] [ 20.270210] Memory state around the buggy address: [ 20.270253] ffff800080a77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.270300] ffff800080a77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.270353] >ffff800080a77b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 20.270399] ^ [ 20.270444] ffff800080a77b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 20.270506] ffff800080a77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 20.270547] ==================================================================
[ 13.842869] ================================================================== [ 13.843373] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 13.843745] Read of size 1 at addr ffff88810392fc4a by task kunit_try_catch/270 [ 13.844508] [ 13.844630] CPU: 1 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.844682] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.844695] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.844718] Call Trace: [ 13.844733] <TASK> [ 13.844753] dump_stack_lvl+0x73/0xb0 [ 13.844796] print_report+0xd1/0x650 [ 13.844819] ? __virt_addr_valid+0x1db/0x2d0 [ 13.844841] ? kasan_alloca_oob_right+0x329/0x390 [ 13.844863] ? kasan_addr_to_slab+0x11/0xa0 [ 13.844883] ? kasan_alloca_oob_right+0x329/0x390 [ 13.844905] kasan_report+0x141/0x180 [ 13.844925] ? kasan_alloca_oob_right+0x329/0x390 [ 13.844951] __asan_report_load1_noabort+0x18/0x20 [ 13.844974] kasan_alloca_oob_right+0x329/0x390 [ 13.844993] ? __kasan_check_write+0x18/0x20 [ 13.845013] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.845034] ? finish_task_switch.isra.0+0x153/0x700 [ 13.845056] ? ww_mutex_unlock+0x6e/0x150 [ 13.845079] ? trace_hardirqs_on+0x37/0xe0 [ 13.845104] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 13.845128] ? __schedule+0x10cc/0x2b60 [ 13.845149] ? __pfx_read_tsc+0x10/0x10 [ 13.845170] ? ktime_get_ts64+0x86/0x230 [ 13.845193] kunit_try_run_case+0x1a5/0x480 [ 13.845228] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.845251] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.845273] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.845294] ? __kthread_parkme+0x82/0x180 [ 13.845314] ? preempt_count_sub+0x50/0x80 [ 13.845337] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.845359] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.845381] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.845404] kthread+0x337/0x6f0 [ 13.845421] ? trace_preempt_on+0x20/0xc0 [ 13.845442] ? __pfx_kthread+0x10/0x10 [ 13.845461] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.845482] ? calculate_sigpending+0x7b/0xa0 [ 13.845505] ? __pfx_kthread+0x10/0x10 [ 13.845524] ret_from_fork+0x116/0x1d0 [ 13.845542] ? __pfx_kthread+0x10/0x10 [ 13.845560] ret_from_fork_asm+0x1a/0x30 [ 13.845591] </TASK> [ 13.845602] [ 13.856075] The buggy address belongs to stack of task kunit_try_catch/270 [ 13.857263] [ 13.857460] The buggy address belongs to the physical page: [ 13.858172] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10392f [ 13.858622] flags: 0x200000000000000(node=0|zone=2) [ 13.858813] raw: 0200000000000000 ffffea00040e4bc8 ffffea00040e4bc8 0000000000000000 [ 13.859037] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.859969] page dumped because: kasan: bad access detected [ 13.860962] [ 13.861444] Memory state around the buggy address: [ 13.862171] ffff88810392fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.863516] ffff88810392fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.864620] >ffff88810392fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.865116] ^ [ 13.865937] ffff88810392fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.866634] ffff88810392fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.867526] ==================================================================