Date
July 10, 2025, 6:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.098743] ================================================================== [ 19.098942] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 19.099156] Read of size 1 at addr ffff800080947b4a by task kunit_try_catch/253 [ 19.099396] [ 19.099465] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.099768] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.099889] Hardware name: linux,dummy-virt (DT) [ 19.100080] Call trace: [ 19.100114] show_stack+0x20/0x38 (C) [ 19.100369] dump_stack_lvl+0x8c/0xd0 [ 19.100571] print_report+0x310/0x608 [ 19.100650] kasan_report+0xdc/0x128 [ 19.100702] __asan_report_load1_noabort+0x20/0x30 [ 19.100760] kasan_alloca_oob_right+0x2dc/0x340 [ 19.100830] kunit_try_run_case+0x170/0x3f0 [ 19.100893] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.100959] kthread+0x328/0x630 [ 19.101013] ret_from_fork+0x10/0x20 [ 19.101084] [ 19.101129] The buggy address belongs to stack of task kunit_try_catch/253 [ 19.101195] [ 19.101223] The buggy address belongs to the virtual mapping at [ 19.101223] [ffff800080940000, ffff800080949000) created by: [ 19.101223] kernel_clone+0x150/0x7a8 [ 19.101320] [ 19.101513] The buggy address belongs to the physical page: [ 19.101674] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107004 [ 19.101955] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.102070] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 19.102141] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 19.102502] page dumped because: kasan: bad access detected [ 19.102612] [ 19.102634] Memory state around the buggy address: [ 19.102939] ffff800080947a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.103104] ffff800080947a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.103265] >ffff800080947b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 19.103467] ^ [ 19.103553] ffff800080947b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 19.103600] ffff800080947c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 19.103802] ==================================================================
[ 14.338873] ================================================================== [ 14.339422] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.339737] Read of size 1 at addr ffff888103b07c4a by task kunit_try_catch/270 [ 14.340329] [ 14.340424] CPU: 1 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.340467] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.340478] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.340498] Call Trace: [ 14.340511] <TASK> [ 14.340524] dump_stack_lvl+0x73/0xb0 [ 14.340554] print_report+0xd1/0x650 [ 14.340575] ? __virt_addr_valid+0x1db/0x2d0 [ 14.340599] ? kasan_alloca_oob_right+0x329/0x390 [ 14.340621] ? kasan_addr_to_slab+0x11/0xa0 [ 14.340641] ? kasan_alloca_oob_right+0x329/0x390 [ 14.340664] kasan_report+0x141/0x180 [ 14.340686] ? kasan_alloca_oob_right+0x329/0x390 [ 14.340713] __asan_report_load1_noabort+0x18/0x20 [ 14.340739] kasan_alloca_oob_right+0x329/0x390 [ 14.340764] ? finish_task_switch.isra.0+0x153/0x700 [ 14.340788] ? preempt_schedule_common+0xbe/0x110 [ 14.340812] ? trace_hardirqs_on+0x37/0xe0 [ 14.340856] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.340883] ? __schedule+0x10cc/0x2b60 [ 14.340905] ? __pfx_read_tsc+0x10/0x10 [ 14.340927] ? ktime_get_ts64+0x86/0x230 [ 14.341094] kunit_try_run_case+0x1a5/0x480 [ 14.341120] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.341145] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.341169] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.341193] ? __kthread_parkme+0x82/0x180 [ 14.341213] ? preempt_count_sub+0x50/0x80 [ 14.341236] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.341262] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.341286] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.341312] kthread+0x337/0x6f0 [ 14.341331] ? trace_preempt_on+0x20/0xc0 [ 14.341353] ? __pfx_kthread+0x10/0x10 [ 14.341373] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.341395] ? calculate_sigpending+0x7b/0xa0 [ 14.341420] ? __pfx_kthread+0x10/0x10 [ 14.341441] ret_from_fork+0x116/0x1d0 [ 14.341460] ? __pfx_kthread+0x10/0x10 [ 14.341481] ret_from_fork_asm+0x1a/0x30 [ 14.341511] </TASK> [ 14.341521] [ 14.350311] The buggy address belongs to stack of task kunit_try_catch/270 [ 14.350870] [ 14.351193] The buggy address belongs to the physical page: [ 14.351732] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103b07 [ 14.352306] flags: 0x200000000000000(node=0|zone=2) [ 14.352891] raw: 0200000000000000 ffffea00040ec1c8 ffffea00040ec1c8 0000000000000000 [ 14.353328] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.353635] page dumped because: kasan: bad access detected [ 14.353868] [ 14.354226] Memory state around the buggy address: [ 14.354501] ffff888103b07b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.355001] ffff888103b07b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.355595] >ffff888103b07c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.355941] ^ [ 14.356321] ffff888103b07c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.356618] ffff888103b07d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.356904] ==================================================================