Date
June 24, 2025, 12:47 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 27.322943] ================================================================== [ 27.323065] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 27.323200] Read of size 1 at addr ffff800080a17b4a by task kunit_try_catch/255 [ 27.323317] [ 27.323418] CPU: 1 UID: 0 PID: 255 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT [ 27.323724] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.323798] Hardware name: linux,dummy-virt (DT) [ 27.323889] Call trace: [ 27.323997] show_stack+0x20/0x38 (C) [ 27.324216] dump_stack_lvl+0x8c/0xd0 [ 27.324361] print_report+0x310/0x608 [ 27.324675] kasan_report+0xdc/0x128 [ 27.324940] __asan_report_load1_noabort+0x20/0x30 [ 27.325304] kasan_alloca_oob_right+0x2dc/0x340 [ 27.325502] kunit_try_run_case+0x170/0x3f0 [ 27.325652] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 27.325850] kthread+0x328/0x630 [ 27.326055] ret_from_fork+0x10/0x20 [ 27.326254] [ 27.326516] The buggy address belongs to stack of task kunit_try_catch/255 [ 27.326950] [ 27.327021] The buggy address belongs to the virtual mapping at [ 27.327021] [ffff800080a10000, ffff800080a19000) created by: [ 27.327021] kernel_clone+0x150/0x7a8 [ 27.327664] [ 27.327743] The buggy address belongs to the physical page: [ 27.327839] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a69 [ 27.328021] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 27.328286] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 27.329515] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 27.329817] page dumped because: kasan: bad access detected [ 27.329915] [ 27.329986] Memory state around the buggy address: [ 27.330141] ffff800080a17a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.330261] ffff800080a17a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 27.330395] >ffff800080a17b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 27.330503] ^ [ 27.330606] ffff800080a17b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 27.330947] ffff800080a17c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 27.331081] ==================================================================
[ 13.874436] ================================================================== [ 13.875709] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 13.876124] Read of size 1 at addr ffff888103a87c4a by task kunit_try_catch/273 [ 13.876637] [ 13.876810] CPU: 0 UID: 0 PID: 273 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc2 #1 PREEMPT(voluntary) [ 13.877052] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.877171] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.877222] Call Trace: [ 13.877267] <TASK> [ 13.877307] dump_stack_lvl+0x73/0xb0 [ 13.877484] print_report+0xd1/0x650 [ 13.877536] ? __virt_addr_valid+0x1db/0x2d0 [ 13.877581] ? kasan_alloca_oob_right+0x329/0x390 [ 13.877605] ? kasan_addr_to_slab+0x11/0xa0 [ 13.877645] ? kasan_alloca_oob_right+0x329/0x390 [ 13.877670] kasan_report+0x141/0x180 [ 13.877693] ? kasan_alloca_oob_right+0x329/0x390 [ 13.877719] __asan_report_load1_noabort+0x18/0x20 [ 13.877740] kasan_alloca_oob_right+0x329/0x390 [ 13.877764] ? finish_task_switch.isra.0+0x153/0x700 [ 13.877791] ? rwsem_down_read_slowpath+0x6be/0xb90 [ 13.877813] ? trace_hardirqs_on+0x37/0xe0 [ 13.877839] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 13.877864] ? __schedule+0x10cc/0x2b60 [ 13.877887] ? __pfx_read_tsc+0x10/0x10 [ 13.877907] ? ktime_get_ts64+0x86/0x230 [ 13.877934] kunit_try_run_case+0x1a5/0x480 [ 13.877978] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.878002] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.878026] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.878050] ? __kthread_parkme+0x82/0x180 [ 13.878075] ? preempt_count_sub+0x50/0x80 [ 13.878098] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.878123] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.878146] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.878168] kthread+0x337/0x6f0 [ 13.878185] ? trace_preempt_on+0x20/0xc0 [ 13.878207] ? __pfx_kthread+0x10/0x10 [ 13.878225] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.878248] ? calculate_sigpending+0x7b/0xa0 [ 13.878270] ? __pfx_kthread+0x10/0x10 [ 13.878313] ret_from_fork+0x41/0x80 [ 13.878354] ? __pfx_kthread+0x10/0x10 [ 13.878383] ret_from_fork_asm+0x1a/0x30 [ 13.878432] </TASK> [ 13.878454] [ 13.891101] The buggy address belongs to stack of task kunit_try_catch/273 [ 13.892305] [ 13.892490] The buggy address belongs to the physical page: [ 13.893042] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a87 [ 13.893677] flags: 0x200000000000000(node=0|zone=2) [ 13.894046] raw: 0200000000000000 ffffea00040ea1c8 ffffea00040ea1c8 0000000000000000 [ 13.894634] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.894962] page dumped because: kasan: bad access detected [ 13.895304] [ 13.895891] Memory state around the buggy address: [ 13.896256] ffff888103a87b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.897146] ffff888103a87b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.897529] >ffff888103a87c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.897974] ^ [ 13.898375] ffff888103a87c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.898852] ffff888103a87d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.899451] ==================================================================