Date
June 17, 2025, 3:40 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.540657] ================================================================== [ 24.541641] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 24.542116] Read of size 1 at addr ffff800080a97b4a by task kunit_try_catch/255 [ 24.542298] [ 24.542380] CPU: 0 UID: 0 PID: 255 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT [ 24.542557] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.542619] Hardware name: linux,dummy-virt (DT) [ 24.542693] Call trace: [ 24.542765] show_stack+0x20/0x38 (C) [ 24.542899] dump_stack_lvl+0x8c/0xd0 [ 24.543018] print_report+0x310/0x608 [ 24.543129] kasan_report+0xdc/0x128 [ 24.543236] __asan_report_load1_noabort+0x20/0x30 [ 24.543357] kasan_alloca_oob_right+0x2dc/0x340 [ 24.543480] kunit_try_run_case+0x170/0x3f0 [ 24.543995] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.544611] kthread+0x328/0x630 [ 24.545354] ret_from_fork+0x10/0x20 [ 24.545672] [ 24.545749] The buggy address belongs to stack of task kunit_try_catch/255 [ 24.546091] [ 24.546202] The buggy address belongs to the virtual mapping at [ 24.546202] [ffff800080a90000, ffff800080a99000) created by: [ 24.546202] kernel_clone+0x150/0x7a8 [ 24.546464] [ 24.546542] The buggy address belongs to the physical page: [ 24.546624] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078e1 [ 24.546771] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.546928] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 24.547029] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 24.547108] page dumped because: kasan: bad access detected [ 24.547204] [ 24.547244] Memory state around the buggy address: [ 24.547348] ffff800080a97a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.547784] ffff800080a97a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 24.547911] >ffff800080a97b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 24.548002] ^ [ 24.548097] ffff800080a97b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 24.548222] ffff800080a97c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 24.548329] ==================================================================
[ 22.242901] ================================================================== [ 22.243854] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 22.244910] Read of size 1 at addr ffff8881039efc4a by task kunit_try_catch/273 [ 22.245996] [ 22.246263] CPU: 0 UID: 0 PID: 273 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT(voluntary) [ 22.246385] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.246417] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.246468] Call Trace: [ 22.246504] <TASK> [ 22.246541] dump_stack_lvl+0x73/0xb0 [ 22.246616] print_report+0xd1/0x650 [ 22.246688] ? __virt_addr_valid+0x1db/0x2d0 [ 22.246756] ? kasan_alloca_oob_right+0x329/0x390 [ 22.246818] ? kasan_addr_to_slab+0x11/0xa0 [ 22.246875] ? kasan_alloca_oob_right+0x329/0x390 [ 22.246938] kasan_report+0x141/0x180 [ 22.247000] ? kasan_alloca_oob_right+0x329/0x390 [ 22.247079] __asan_report_load1_noabort+0x18/0x20 [ 22.247145] kasan_alloca_oob_right+0x329/0x390 [ 22.247213] ? finish_task_switch.isra.0+0x153/0x700 [ 22.247277] ? down_write_killable+0x8e/0x180 [ 22.248482] ? trace_hardirqs_on+0x37/0xe0 [ 22.248560] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 22.248629] ? __schedule+0x10cc/0x2b60 [ 22.248693] ? __pfx_read_tsc+0x10/0x10 [ 22.248747] ? ktime_get_ts64+0x86/0x230 [ 22.248816] kunit_try_run_case+0x1a5/0x480 [ 22.248885] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.248943] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.249005] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.249096] ? __kthread_parkme+0x82/0x180 [ 22.249166] ? preempt_count_sub+0x50/0x80 [ 22.249229] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.249325] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.249400] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.249470] kthread+0x337/0x6f0 [ 22.249528] ? trace_preempt_on+0x20/0xc0 [ 22.249595] ? __pfx_kthread+0x10/0x10 [ 22.249653] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.249709] ? calculate_sigpending+0x7b/0xa0 [ 22.249771] ? __pfx_kthread+0x10/0x10 [ 22.249825] ret_from_fork+0x41/0x80 [ 22.249887] ? __pfx_kthread+0x10/0x10 [ 22.249919] ret_from_fork_asm+0x1a/0x30 [ 22.249969] </TASK> [ 22.249986] [ 22.272265] The buggy address belongs to stack of task kunit_try_catch/273 [ 22.272686] [ 22.272789] The buggy address belongs to the physical page: [ 22.272987] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039ef [ 22.273259] flags: 0x200000000000000(node=0|zone=2) [ 22.274135] raw: 0200000000000000 ffffea00040e7bc8 ffffea00040e7bc8 0000000000000000 [ 22.275574] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 22.276797] page dumped because: kasan: bad access detected [ 22.277431] [ 22.277663] Memory state around the buggy address: [ 22.278510] ffff8881039efb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.279174] ffff8881039efb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.279898] >ffff8881039efc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 22.280802] ^ [ 22.281226] ffff8881039efc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 22.282251] ffff8881039efd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 22.282853] ==================================================================