Date
May 23, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.877992] ================================================================== [ 30.878204] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 30.878398] Read of size 1 at addr ffff800080ad7b4a by task kunit_try_catch/255 [ 30.878560] [ 30.878661] CPU: 0 UID: 0 PID: 255 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT [ 30.878919] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.879009] Hardware name: linux,dummy-virt (DT) [ 30.879112] Call trace: [ 30.879187] show_stack+0x20/0x38 (C) [ 30.879344] dump_stack_lvl+0x8c/0xd0 [ 30.880177] print_report+0x310/0x608 [ 30.880504] kasan_report+0xdc/0x128 [ 30.880869] __asan_report_load1_noabort+0x20/0x30 [ 30.881319] kasan_alloca_oob_right+0x2dc/0x340 [ 30.881746] kunit_try_run_case+0x170/0x3f0 [ 30.882189] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.882707] kthread+0x328/0x630 [ 30.883080] ret_from_fork+0x10/0x20 [ 30.883346] [ 30.883424] The buggy address belongs to stack of task kunit_try_catch/255 [ 30.884125] [ 30.884412] The buggy address belongs to the virtual mapping at [ 30.884412] [ffff800080ad0000, ffff800080ad9000) created by: [ 30.884412] kernel_clone+0x150/0x7a8 [ 30.884802] [ 30.884861] The buggy address belongs to the physical page: [ 30.884944] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107790 [ 30.885514] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.886683] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 30.887353] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 30.887617] page dumped because: kasan: bad access detected [ 30.887722] [ 30.887788] Memory state around the buggy address: [ 30.887891] ffff800080ad7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.888044] ffff800080ad7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.888186] >ffff800080ad7b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 30.888312] ^ [ 30.888430] ffff800080ad7b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 30.889697] ffff800080ad7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 30.890039] ==================================================================
[ 14.460472] ================================================================== [ 14.460910] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.461274] Read of size 1 at addr ffff888103a0fc4a by task kunit_try_catch/272 [ 14.461612] [ 14.461727] CPU: 1 UID: 0 PID: 272 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT(voluntary) [ 14.462008] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.462024] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.462046] Call Trace: [ 14.462058] <TASK> [ 14.462075] dump_stack_lvl+0x73/0xb0 [ 14.462105] print_report+0xd1/0x650 [ 14.462128] ? __virt_addr_valid+0x1db/0x2d0 [ 14.462149] ? kasan_alloca_oob_right+0x329/0x390 [ 14.462172] ? kasan_addr_to_slab+0x11/0xa0 [ 14.462193] ? kasan_alloca_oob_right+0x329/0x390 [ 14.462217] kasan_report+0x141/0x180 [ 14.462239] ? kasan_alloca_oob_right+0x329/0x390 [ 14.462267] __asan_report_load1_noabort+0x18/0x20 [ 14.462288] kasan_alloca_oob_right+0x329/0x390 [ 14.462327] ? finish_task_switch.isra.0+0x153/0x700 [ 14.462352] ? rt_mutex_adjust_prio_chain+0x19ae/0x20e0 [ 14.462374] ? trace_hardirqs_on+0x37/0xe0 [ 14.462399] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.462425] ? __schedule+0x10cc/0x2b30 [ 14.462460] ? __pfx_read_tsc+0x10/0x10 [ 14.462479] ? ktime_get_ts64+0x86/0x230 [ 14.462504] kunit_try_run_case+0x1a5/0x480 [ 14.462529] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.462551] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.462573] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.462597] ? __kthread_parkme+0x82/0x180 [ 14.462618] ? preempt_count_sub+0x50/0x80 [ 14.462644] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.462667] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.462697] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.462720] kthread+0x337/0x6f0 [ 14.462736] ? trace_preempt_on+0x20/0xc0 [ 14.462760] ? __pfx_kthread+0x10/0x10 [ 14.462778] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.462799] ? calculate_sigpending+0x7b/0xa0 [ 14.462819] ? __pfx_kthread+0x10/0x10 [ 14.462838] ret_from_fork+0x41/0x80 [ 14.462859] ? __pfx_kthread+0x10/0x10 [ 14.462877] ret_from_fork_asm+0x1a/0x30 [ 14.462964] </TASK> [ 14.462976] [ 14.471007] The buggy address belongs to stack of task kunit_try_catch/272 [ 14.471409] [ 14.471592] The buggy address belongs to the physical page: [ 14.471780] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a0f [ 14.472352] flags: 0x200000000000000(node=0|zone=2) [ 14.472600] raw: 0200000000000000 ffffea00040e83c8 ffffea00040e83c8 0000000000000000 [ 14.472833] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.473180] page dumped because: kasan: bad access detected [ 14.473425] [ 14.473496] Memory state around the buggy address: [ 14.473652] ffff888103a0fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.474050] ffff888103a0fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.474376] >ffff888103a0fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.474956] ^ [ 14.475136] ffff888103a0fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.475390] ffff888103a0fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.475710] ==================================================================