Date
June 16, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.158747] ================================================================== [ 22.159553] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 22.159688] Read of size 1 at addr ffff800080a47b5f by task kunit_try_catch/260 [ 22.159763] [ 22.159950] CPU: 0 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT [ 22.160407] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.160564] Hardware name: linux,dummy-virt (DT) [ 22.160748] Call trace: [ 22.160817] show_stack+0x20/0x38 (C) [ 22.160949] dump_stack_lvl+0x8c/0xd0 [ 22.161050] print_report+0x310/0x608 [ 22.161110] kasan_report+0xdc/0x128 [ 22.161172] __asan_report_load1_noabort+0x20/0x30 [ 22.161229] kasan_alloca_oob_left+0x2b8/0x310 [ 22.161285] kunit_try_run_case+0x170/0x3f0 [ 22.161460] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.161921] kthread+0x328/0x630 [ 22.161991] ret_from_fork+0x10/0x20 [ 22.162114] [ 22.162150] The buggy address belongs to stack of task kunit_try_catch/260 [ 22.162409] [ 22.162630] The buggy address belongs to the virtual mapping at [ 22.162630] [ffff800080a40000, ffff800080a49000) created by: [ 22.162630] kernel_clone+0x150/0x7a8 [ 22.162743] [ 22.162906] The buggy address belongs to the physical page: [ 22.163124] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063f4 [ 22.163352] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.163555] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 22.163884] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 22.164016] page dumped because: kasan: bad access detected [ 22.164066] [ 22.164093] Memory state around the buggy address: [ 22.164253] ffff800080a47a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.164328] ffff800080a47a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.164388] >ffff800080a47b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 22.164447] ^ [ 22.164499] ffff800080a47b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 22.164553] ffff800080a47c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 22.164602] ==================================================================
[ 13.327728] ================================================================== [ 13.328239] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 13.328536] Read of size 1 at addr ffff8881039ffc3f by task kunit_try_catch/276 [ 13.329143] [ 13.329253] CPU: 1 UID: 0 PID: 276 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT(voluntary) [ 13.329299] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.329310] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.329330] Call Trace: [ 13.329342] <TASK> [ 13.329357] dump_stack_lvl+0x73/0xb0 [ 13.329385] print_report+0xd1/0x650 [ 13.329490] ? __virt_addr_valid+0x1db/0x2d0 [ 13.329514] ? kasan_alloca_oob_left+0x320/0x380 [ 13.329552] ? kasan_addr_to_slab+0x11/0xa0 [ 13.329572] ? kasan_alloca_oob_left+0x320/0x380 [ 13.329608] kasan_report+0x141/0x180 [ 13.329629] ? kasan_alloca_oob_left+0x320/0x380 [ 13.329655] __asan_report_load1_noabort+0x18/0x20 [ 13.329678] kasan_alloca_oob_left+0x320/0x380 [ 13.329706] ? finish_task_switch.isra.0+0x153/0x700 [ 13.329727] ? rwsem_down_read_slowpath+0x58e/0xb90 [ 13.329752] ? trace_hardirqs_on+0x37/0xe0 [ 13.329777] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 13.329801] ? __schedule+0x10cc/0x2b60 [ 13.329822] ? __pfx_read_tsc+0x10/0x10 [ 13.329842] ? ktime_get_ts64+0x86/0x230 [ 13.329865] kunit_try_run_case+0x1a5/0x480 [ 13.329889] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.329910] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.329942] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.329964] ? __kthread_parkme+0x82/0x180 [ 13.329983] ? preempt_count_sub+0x50/0x80 [ 13.330005] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.330028] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.330050] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.330073] kthread+0x337/0x6f0 [ 13.330092] ? trace_preempt_on+0x20/0xc0 [ 13.330113] ? __pfx_kthread+0x10/0x10 [ 13.330133] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.330152] ? calculate_sigpending+0x7b/0xa0 [ 13.330176] ? __pfx_kthread+0x10/0x10 [ 13.330197] ret_from_fork+0x116/0x1d0 [ 13.330215] ? __pfx_kthread+0x10/0x10 [ 13.330234] ret_from_fork_asm+0x1a/0x30 [ 13.330264] </TASK> [ 13.330274] [ 13.340653] The buggy address belongs to stack of task kunit_try_catch/276 [ 13.340938] [ 13.341024] The buggy address belongs to the physical page: [ 13.341242] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039ff [ 13.342103] flags: 0x200000000000000(node=0|zone=2) [ 13.342397] raw: 0200000000000000 ffffea00040e7fc8 ffffea00040e7fc8 0000000000000000 [ 13.342915] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.343491] page dumped because: kasan: bad access detected [ 13.343860] [ 13.344150] Memory state around the buggy address: [ 13.344362] ffff8881039ffb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.344907] ffff8881039ffb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.345214] >ffff8881039ffc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.345924] ^ [ 13.346222] ffff8881039ffc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.346728] ffff8881039ffd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.347027] ==================================================================