Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.535808] ================================================================== [ 17.535924] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 17.535982] Read of size 1 at addr ffff800080b47b4a by task kunit_try_catch/253 [ 17.536033] [ 17.536065] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.536253] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.536283] Hardware name: linux,dummy-virt (DT) [ 17.536539] Call trace: [ 17.536565] show_stack+0x20/0x38 (C) [ 17.536619] dump_stack_lvl+0x8c/0xd0 [ 17.536678] print_report+0x310/0x5d0 [ 17.536725] kasan_report+0xdc/0x128 [ 17.536773] __asan_report_load1_noabort+0x20/0x30 [ 17.536825] kasan_alloca_oob_right+0x2dc/0x340 [ 17.536873] kunit_try_run_case+0x170/0x3f0 [ 17.536922] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.538099] kthread+0x328/0x630 [ 17.538148] ret_from_fork+0x10/0x20 [ 17.538197] [ 17.538223] The buggy address belongs to stack of task kunit_try_catch/253 [ 17.538286] [ 17.538394] The buggy address ffff800080b47b4a belongs to a vmalloc virtual mapping [ 17.538617] The buggy address belongs to the physical page: [ 17.538911] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078b7 [ 17.539530] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.539852] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.540120] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.540208] page dumped because: kasan: bad access detected [ 17.540296] [ 17.540405] Memory state around the buggy address: [ 17.540454] ffff800080b47a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.540499] ffff800080b47a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.540544] >ffff800080b47b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 17.540584] ^ [ 17.540780] ffff800080b47b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.540940] ffff800080b47c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.540987] ==================================================================
[ 14.147630] ================================================================== [ 14.148735] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.149062] Read of size 1 at addr ffff888103a6fc4a by task kunit_try_catch/270 [ 14.149289] [ 14.149381] CPU: 1 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 14.149423] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.149434] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.149455] Call Trace: [ 14.149466] <TASK> [ 14.149481] dump_stack_lvl+0x73/0xb0 [ 14.149508] print_report+0xd1/0x610 [ 14.149529] ? __virt_addr_valid+0x1db/0x2d0 [ 14.149550] ? kasan_alloca_oob_right+0x329/0x390 [ 14.149572] ? kasan_addr_to_slab+0x11/0xa0 [ 14.149591] ? kasan_alloca_oob_right+0x329/0x390 [ 14.149613] kasan_report+0x141/0x180 [ 14.149634] ? kasan_alloca_oob_right+0x329/0x390 [ 14.149660] __asan_report_load1_noabort+0x18/0x20 [ 14.149684] kasan_alloca_oob_right+0x329/0x390 [ 14.149705] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.149726] ? finish_task_switch.isra.0+0x153/0x700 [ 14.149747] ? rt_mutex_adjust_prio_chain+0x195e/0x20e0 [ 14.149768] ? trace_hardirqs_on+0x37/0xe0 [ 14.149792] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.149817] ? __schedule+0x10cc/0x2b60 [ 14.149838] ? __pfx_read_tsc+0x10/0x10 [ 14.149857] ? ktime_get_ts64+0x86/0x230 [ 14.149880] kunit_try_run_case+0x1a5/0x480 [ 14.149903] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.149937] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.149960] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.149982] ? __kthread_parkme+0x82/0x180 [ 14.150002] ? preempt_count_sub+0x50/0x80 [ 14.150023] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.150046] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.150069] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.150091] kthread+0x337/0x6f0 [ 14.150110] ? trace_preempt_on+0x20/0xc0 [ 14.150131] ? __pfx_kthread+0x10/0x10 [ 14.150150] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.150205] ? calculate_sigpending+0x7b/0xa0 [ 14.150230] ? __pfx_kthread+0x10/0x10 [ 14.150263] ret_from_fork+0x116/0x1d0 [ 14.150282] ? __pfx_kthread+0x10/0x10 [ 14.150302] ret_from_fork_asm+0x1a/0x30 [ 14.150338] </TASK> [ 14.150348] [ 14.167094] The buggy address belongs to stack of task kunit_try_catch/270 [ 14.167531] [ 14.167729] The buggy address belongs to the physical page: [ 14.168198] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a6f [ 14.168607] flags: 0x200000000000000(node=0|zone=2) [ 14.169111] raw: 0200000000000000 ffffea00040e9bc8 ffffea00040e9bc8 0000000000000000 [ 14.169898] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.170405] page dumped because: kasan: bad access detected [ 14.171032] [ 14.171109] Memory state around the buggy address: [ 14.171265] ffff888103a6fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.171670] ffff888103a6fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.172526] >ffff888103a6fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.173431] ^ [ 14.173943] ffff888103a6fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.174165] ffff888103a6fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.174389] ==================================================================