Date
June 23, 2025, 1:39 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 28.007882] ================================================================== [ 28.008021] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 28.008157] Read of size 1 at addr ffff800080a57b4a by task kunit_try_catch/255 [ 28.008797] [ 28.008895] CPU: 0 UID: 0 PID: 255 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT [ 28.009294] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.009368] Hardware name: linux,dummy-virt (DT) [ 28.009727] Call trace: [ 28.010034] show_stack+0x20/0x38 (C) [ 28.010173] dump_stack_lvl+0x8c/0xd0 [ 28.010296] print_report+0x310/0x608 [ 28.010430] kasan_report+0xdc/0x128 [ 28.010600] __asan_report_load1_noabort+0x20/0x30 [ 28.010744] kasan_alloca_oob_right+0x2dc/0x340 [ 28.011235] kunit_try_run_case+0x170/0x3f0 [ 28.011543] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 28.011743] kthread+0x328/0x630 [ 28.011882] ret_from_fork+0x10/0x20 [ 28.012011] [ 28.012410] The buggy address belongs to stack of task kunit_try_catch/255 [ 28.012696] [ 28.012831] The buggy address belongs to the virtual mapping at [ 28.012831] [ffff800080a50000, ffff800080a59000) created by: [ 28.012831] kernel_clone+0x150/0x7a8 [ 28.013237] [ 28.013291] The buggy address belongs to the physical page: [ 28.013369] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107057 [ 28.013516] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 28.013669] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 28.013788] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 28.013884] page dumped because: kasan: bad access detected [ 28.014017] [ 28.014177] Memory state around the buggy address: [ 28.014360] ffff800080a57a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 28.014994] ffff800080a57a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 28.015099] >ffff800080a57b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 28.015208] ^ [ 28.015290] ffff800080a57b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 28.015945] ffff800080a57c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 28.016919] ==================================================================
[ 20.014345] ================================================================== [ 20.015816] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 20.016909] Read of size 1 at addr ffff88810a73fc4a by task kunit_try_catch/274 [ 20.017717] [ 20.017961] CPU: 1 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT(voluntary) [ 20.018088] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.018123] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 20.018184] Call Trace: [ 20.018236] <TASK> [ 20.018285] dump_stack_lvl+0x73/0xb0 [ 20.018361] print_report+0xd1/0x650 [ 20.018433] ? __virt_addr_valid+0x1db/0x2d0 [ 20.018507] ? kasan_alloca_oob_right+0x329/0x390 [ 20.018577] ? kasan_addr_to_slab+0x11/0xa0 [ 20.018666] ? kasan_alloca_oob_right+0x329/0x390 [ 20.018735] kasan_report+0x141/0x180 [ 20.018773] ? kasan_alloca_oob_right+0x329/0x390 [ 20.018819] __asan_report_load1_noabort+0x18/0x20 [ 20.018850] kasan_alloca_oob_right+0x329/0x390 [ 20.018891] ? pick_task_fair+0xc9/0x340 [ 20.018930] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 20.018966] ? trace_hardirqs_on+0x37/0xe0 [ 20.019000] ? __schedule+0x207f/0x2b60 [ 20.019033] ? __pfx_read_tsc+0x10/0x10 [ 20.019062] ? ktime_get_ts64+0x86/0x230 [ 20.019098] kunit_try_run_case+0x1a5/0x480 [ 20.019136] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.019170] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 20.019206] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 20.019271] ? __kthread_parkme+0x82/0x180 [ 20.019308] ? preempt_count_sub+0x50/0x80 [ 20.019345] ? __pfx_kunit_try_run_case+0x10/0x10 [ 20.019382] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 20.019417] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 20.019452] kthread+0x337/0x6f0 [ 20.019476] ? trace_preempt_on+0x20/0xc0 [ 20.019509] ? __pfx_kthread+0x10/0x10 [ 20.019535] ? _raw_spin_unlock_irq+0x47/0x80 [ 20.019566] ? calculate_sigpending+0x7b/0xa0 [ 20.019598] ? __pfx_kthread+0x10/0x10 [ 20.019652] ret_from_fork+0x41/0x80 [ 20.019685] ? __pfx_kthread+0x10/0x10 [ 20.019710] ret_from_fork_asm+0x1a/0x30 [ 20.019756] </TASK> [ 20.019770] [ 20.035542] The buggy address belongs to stack of task kunit_try_catch/274 [ 20.036272] [ 20.036507] The buggy address belongs to the physical page: [ 20.037053] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10a73f [ 20.037808] flags: 0x200000000000000(node=0|zone=2) [ 20.038183] raw: 0200000000000000 ffffea000429cfc8 ffffea000429cfc8 0000000000000000 [ 20.038934] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 20.039680] page dumped because: kasan: bad access detected [ 20.040243] [ 20.040481] Memory state around the buggy address: [ 20.040949] ffff88810a73fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.041596] ffff88810a73fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.042097] >ffff88810a73fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 20.042822] ^ [ 20.043404] ffff88810a73fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 20.043967] ffff88810a73fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 20.044569] ==================================================================