Date
July 19, 2025, 11:11 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.496944] ================================================================== [ 17.497058] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 17.497120] Read of size 1 at addr ffff800080a77b4a by task kunit_try_catch/254 [ 17.497437] [ 17.497501] CPU: 1 UID: 0 PID: 254 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.497697] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.497897] Hardware name: linux,dummy-virt (DT) [ 17.497943] Call trace: [ 17.497994] show_stack+0x20/0x38 (C) [ 17.498113] dump_stack_lvl+0x8c/0xd0 [ 17.498432] print_report+0x310/0x5d0 [ 17.498609] kasan_report+0xdc/0x128 [ 17.498711] __asan_report_load1_noabort+0x20/0x30 [ 17.498997] kasan_alloca_oob_right+0x2dc/0x340 [ 17.499100] kunit_try_run_case+0x170/0x3f0 [ 17.499248] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.499587] kthread+0x328/0x630 [ 17.499667] ret_from_fork+0x10/0x20 [ 17.499776] [ 17.499799] The buggy address belongs to stack of task kunit_try_catch/254 [ 17.500125] [ 17.500258] The buggy address ffff800080a77b4a belongs to a vmalloc virtual mapping [ 17.500327] The buggy address belongs to the physical page: [ 17.500493] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106e85 [ 17.500570] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.500677] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.500795] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.500877] page dumped because: kasan: bad access detected [ 17.500954] [ 17.500978] Memory state around the buggy address: [ 17.501242] ffff800080a77a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.501336] ffff800080a77a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.501561] >ffff800080a77b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 17.501965] ^ [ 17.502111] ffff800080a77b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.502244] ffff800080a77c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.502321] ==================================================================
[ 13.883896] ================================================================== [ 13.884975] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 13.885605] Read of size 1 at addr ffff8881039dfc4a by task kunit_try_catch/271 [ 13.885928] [ 13.886036] CPU: 0 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.886096] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.886110] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.886141] Call Trace: [ 13.886156] <TASK> [ 13.886176] dump_stack_lvl+0x73/0xb0 [ 13.886218] print_report+0xd1/0x610 [ 13.886245] ? __virt_addr_valid+0x1db/0x2d0 [ 13.886276] ? kasan_alloca_oob_right+0x329/0x390 [ 13.886302] ? kasan_addr_to_slab+0x11/0xa0 [ 13.886327] ? kasan_alloca_oob_right+0x329/0x390 [ 13.886356] kasan_report+0x141/0x180 [ 13.886382] ? kasan_alloca_oob_right+0x329/0x390 [ 13.886416] __asan_report_load1_noabort+0x18/0x20 [ 13.886447] kasan_alloca_oob_right+0x329/0x390 [ 13.886477] ? finish_task_switch.isra.0+0x153/0x700 [ 13.886517] ? __schedule+0x100e/0x2b60 [ 13.886543] ? trace_hardirqs_on+0x37/0xe0 [ 13.886575] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 13.886607] ? __schedule+0x10cc/0x2b60 [ 13.886633] ? __pfx_read_tsc+0x10/0x10 [ 13.886658] ? ktime_get_ts64+0x86/0x230 [ 13.886688] kunit_try_run_case+0x1a5/0x480 [ 13.886720] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.886746] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.886776] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.886806] ? __kthread_parkme+0x82/0x180 [ 13.886832] ? preempt_count_sub+0x50/0x80 [ 13.886861] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.886889] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.886919] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.886949] kthread+0x337/0x6f0 [ 13.886972] ? trace_preempt_on+0x20/0xc0 [ 13.886998] ? __pfx_kthread+0x10/0x10 [ 13.887022] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.887048] ? calculate_sigpending+0x7b/0xa0 [ 13.887077] ? __pfx_kthread+0x10/0x10 [ 13.887102] ret_from_fork+0x116/0x1d0 [ 13.887126] ? __pfx_kthread+0x10/0x10 [ 13.887150] ret_from_fork_asm+0x1a/0x30 [ 13.887386] </TASK> [ 13.887400] [ 13.895292] The buggy address belongs to stack of task kunit_try_catch/271 [ 13.895654] [ 13.895760] The buggy address belongs to the physical page: [ 13.896030] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1039df [ 13.896792] flags: 0x200000000000000(node=0|zone=2) [ 13.897022] raw: 0200000000000000 ffffea00040e77c8 ffffea00040e77c8 0000000000000000 [ 13.897492] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 13.897900] page dumped because: kasan: bad access detected [ 13.898124] [ 13.898208] Memory state around the buggy address: [ 13.898381] ffff8881039dfb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.898852] ffff8881039dfb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.899233] >ffff8881039dfc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 13.899577] ^ [ 13.899834] ffff8881039dfc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 13.900335] ffff8881039dfd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 13.900667] ==================================================================