Date
July 1, 2025, 12:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.657139] ================================================================== [ 19.657206] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 19.657262] Read of size 1 at addr ffff800080a77b4a by task kunit_try_catch/253 [ 19.657605] [ 19.657637] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.657757] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.657929] Hardware name: linux,dummy-virt (DT) [ 19.657964] Call trace: [ 19.657990] show_stack+0x20/0x38 (C) [ 19.658141] dump_stack_lvl+0x8c/0xd0 [ 19.658194] print_report+0x310/0x608 [ 19.658240] kasan_report+0xdc/0x128 [ 19.658288] __asan_report_load1_noabort+0x20/0x30 [ 19.658561] kasan_alloca_oob_right+0x2dc/0x340 [ 19.658614] kunit_try_run_case+0x170/0x3f0 [ 19.658665] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.658720] kthread+0x328/0x630 [ 19.658764] ret_from_fork+0x10/0x20 [ 19.658827] [ 19.658850] The buggy address belongs to stack of task kunit_try_catch/253 [ 19.658979] [ 19.659035] The buggy address belongs to the virtual mapping at [ 19.659035] [ffff800080a70000, ffff800080a79000) created by: [ 19.659035] kernel_clone+0x150/0x7a8 [ 19.659426] [ 19.659457] The buggy address belongs to the physical page: [ 19.659693] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10799f [ 19.659940] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.660219] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 19.660277] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 19.660526] page dumped because: kasan: bad access detected [ 19.660669] [ 19.660865] Memory state around the buggy address: [ 19.661010] ffff800080a77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.661095] ffff800080a77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 19.661257] >ffff800080a77b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 19.661318] ^ [ 19.661514] ffff800080a77b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 19.661677] ffff800080a77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 19.661853] ==================================================================
[ 13.266346] ================================================================== [ 13.266810] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 13.267130] Read of size 1 at addr ffff8881039d7c4a by task kunit_try_catch/270 [ 13.267871] [ 13.268085] CPU: 0 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.268131] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.268199] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.268220] Call Trace: [ 13.268233] <TASK> [ 13.268248] dump_stack_lvl+0x73/0xb0 [ 13.268286] print_report+0xd1/0x650 [ 13.268310] ? __virt_addr_valid+0x1db/0x2d0 [ 13.268349] ? kasan_alloca_oob_right+0x329/0x390 [ 13.268370] ? kasan_addr_to_slab+0x11/0xa0 [ 13.268391] ? kasan_alloca_oob_right+0x329/0x390 [ 13.268414] kasan_report+0x141/0x180 [ 13.268436] ? kasan_alloca_oob_right+0x329/0x390 [ 13.268463] __asan_report_load1_noabort+0x18/0x20 [ 13.268486] kasan_alloca_oob_right+0x329/0x390 [ 13.268527] ? __kasan_check_write+0x18/0x20 [ 13.268547] ? __pfx_sched_clock_cpu+0x10/0x10 [ 13.268569] ? finish_task_switch.isra.0+0x153/0x700 [ 13.268593] ? out_of_line_wait_on_bit_timeout+0x7e/0x190 [ 13.268620] ? trace_hardirqs_on+0x37/0xe0 [ 13.268644] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 13.268669] ? __schedule+0x10cc/0x2b60 [ 13.268690] ? __pfx_read_tsc+0x10/0x10 [ 13.268710] ? ktime_get_ts64+0x86/0x230 [ 13.268733] kunit_try_run_case+0x1a5/0x480 [ 13.268758] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.268779] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.268801] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.268823] ? __kthread_parkme+0x82/0x180 [ 13.268845] ? preempt_count_sub+0x50/0x80 [ 13.268868] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.268891] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.268913] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.268936] kthread+0x337/0x6f0 [ 13.268954] ? trace_preempt_on+0x20/0xc0 [ 13.268974] ? __pfx_kthread+0x10/0x10 [ 13.268996] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.269017] ? calculate_sigpending+0x7b/0xa0 [ 13.269067] ? __pfx_kthread+0x10/0x10 [ 13.269089] ret_from_fork+0x116/0x1d0 [ 13.269107] ? __pfx_kthread+0x10/0x10 [ 13.269127] ret_from_fork_asm+0x1a/0x30 [ 13.269167] </TASK> [ 13.269177] [ 13.283700] The buggy address belongs to stack of task kunit_try_catch/270 [ 13.283933] [ 13.284003] The buggy address belongs to the physical page: [ 13.284213] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039d7 [ 13.284710] flags: 0x200000000000000(node=0|zone=2) [ 13.284890] raw: 0200000000000000 ffffea00040e75c8 ffffea00040e75c8 0000000000000000 [ 13.285286] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.285984] page dumped because: kasan: bad access detected [ 13.286586] [ 13.286749] Memory state around the buggy address: [ 13.287401] ffff8881039d7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.288015] ffff8881039d7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.288609] >ffff8881039d7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.288828] ^ [ 13.289003] ffff8881039d7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.289303] ffff8881039d7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.289630] ==================================================================