Date
July 10, 2025, 11:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.219057] ================================================================== [ 18.219134] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 18.219195] Read of size 1 at addr ffff800080a87b4a by task kunit_try_catch/253 [ 18.219248] [ 18.219285] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.219371] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.219401] Hardware name: linux,dummy-virt (DT) [ 18.219434] Call trace: [ 18.219461] show_stack+0x20/0x38 (C) [ 18.219512] dump_stack_lvl+0x8c/0xd0 [ 18.219561] print_report+0x310/0x608 [ 18.219611] kasan_report+0xdc/0x128 [ 18.219660] __asan_report_load1_noabort+0x20/0x30 [ 18.219715] kasan_alloca_oob_right+0x2dc/0x340 [ 18.219766] kunit_try_run_case+0x170/0x3f0 [ 18.219816] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.219872] kthread+0x328/0x630 [ 18.219916] ret_from_fork+0x10/0x20 [ 18.219966] [ 18.219988] The buggy address belongs to stack of task kunit_try_catch/253 [ 18.220100] [ 18.220173] The buggy address belongs to the virtual mapping at [ 18.220173] [ffff800080a80000, ffff800080a89000) created by: [ 18.220173] kernel_clone+0x150/0x7a8 [ 18.220464] [ 18.220500] The buggy address belongs to the physical page: [ 18.220536] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106444 [ 18.220633] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.220702] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 18.220801] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 18.220885] page dumped because: kasan: bad access detected [ 18.220997] [ 18.221020] Memory state around the buggy address: [ 18.221062] ffff800080a87a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.221299] ffff800080a87a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.221484] >ffff800080a87b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 18.221609] ^ [ 18.221690] ffff800080a87b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 18.221902] ffff800080a87c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 18.221976] ==================================================================
[ 14.540137] ================================================================== [ 14.540923] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.541241] Read of size 1 at addr ffff888103947c4a by task kunit_try_catch/271 [ 14.542408] [ 14.542659] CPU: 1 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.542705] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.542824] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.542846] Call Trace: [ 14.542857] <TASK> [ 14.542873] dump_stack_lvl+0x73/0xb0 [ 14.542903] print_report+0xd1/0x650 [ 14.542924] ? __virt_addr_valid+0x1db/0x2d0 [ 14.542946] ? kasan_alloca_oob_right+0x329/0x390 [ 14.542979] ? kasan_addr_to_slab+0x11/0xa0 [ 14.543001] ? kasan_alloca_oob_right+0x329/0x390 [ 14.543025] kasan_report+0x141/0x180 [ 14.543048] ? kasan_alloca_oob_right+0x329/0x390 [ 14.543076] __asan_report_load1_noabort+0x18/0x20 [ 14.543100] kasan_alloca_oob_right+0x329/0x390 [ 14.543124] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.543146] ? finish_task_switch.isra.0+0x153/0x700 [ 14.543169] ? preempt_schedule_common+0xbe/0x110 [ 14.543193] ? trace_hardirqs_on+0x37/0xe0 [ 14.543217] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.543243] ? __schedule+0x10cc/0x2b60 [ 14.543266] ? __pfx_read_tsc+0x10/0x10 [ 14.543287] ? ktime_get_ts64+0x86/0x230 [ 14.543310] kunit_try_run_case+0x1a5/0x480 [ 14.543334] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.543491] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.543517] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.543542] ? __kthread_parkme+0x82/0x180 [ 14.543563] ? preempt_count_sub+0x50/0x80 [ 14.543586] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.543611] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.543637] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.543662] kthread+0x337/0x6f0 [ 14.543682] ? trace_preempt_on+0x20/0xc0 [ 14.543704] ? __pfx_kthread+0x10/0x10 [ 14.543725] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.543746] ? calculate_sigpending+0x7b/0xa0 [ 14.543770] ? __pfx_kthread+0x10/0x10 [ 14.543791] ret_from_fork+0x116/0x1d0 [ 14.543809] ? __pfx_kthread+0x10/0x10 [ 14.543830] ret_from_fork_asm+0x1a/0x30 [ 14.543860] </TASK> [ 14.543869] [ 14.557141] The buggy address belongs to stack of task kunit_try_catch/271 [ 14.557894] [ 14.558055] The buggy address belongs to the physical page: [ 14.558636] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103947 [ 14.559305] flags: 0x200000000000000(node=0|zone=2) [ 14.559812] raw: 0200000000000000 ffffea00040e51c8 ffffea00040e51c8 0000000000000000 [ 14.560049] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.560281] page dumped because: kasan: bad access detected [ 14.560788] [ 14.560950] Memory state around the buggy address: [ 14.561462] ffff888103947b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.562071] ffff888103947b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.562773] >ffff888103947c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.563446] ^ [ 14.563633] ffff888103947c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.563937] ffff888103947d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.564670] ==================================================================