Date
July 18, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.595242] ================================================================== [ 17.595378] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 17.596116] Read of size 1 at addr ffff800080a97b5f by task kunit_try_catch/251 [ 17.596428] [ 17.596501] CPU: 0 UID: 0 PID: 251 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.596590] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.596630] Hardware name: linux,dummy-virt (DT) [ 17.596678] Call trace: [ 17.596704] show_stack+0x20/0x38 (C) [ 17.596994] dump_stack_lvl+0x8c/0xd0 [ 17.597072] print_report+0x310/0x5d0 [ 17.597439] kasan_report+0xdc/0x128 [ 17.597562] __asan_report_load1_noabort+0x20/0x30 [ 17.597925] kasan_alloca_oob_left+0x2b8/0x310 [ 17.598141] kunit_try_run_case+0x170/0x3f0 [ 17.598201] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.598550] kthread+0x328/0x630 [ 17.598672] ret_from_fork+0x10/0x20 [ 17.598851] [ 17.598918] The buggy address belongs to stack of task kunit_try_catch/251 [ 17.599027] [ 17.599052] The buggy address ffff800080a97b5f belongs to a vmalloc virtual mapping [ 17.599560] The buggy address belongs to the physical page: [ 17.599615] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107858 [ 17.599776] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.599937] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.600032] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.600171] page dumped because: kasan: bad access detected [ 17.600259] [ 17.600389] Memory state around the buggy address: [ 17.600549] ffff800080a97a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.600960] ffff800080a97a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.601064] >ffff800080a97b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 17.601126] ^ [ 17.601449] ffff800080a97b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.601586] ffff800080a97c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.601684] ==================================================================
[ 14.006216] ================================================================== [ 14.006849] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 14.007337] Read of size 1 at addr ffff888103ae7c3f by task kunit_try_catch/270 [ 14.007896] [ 14.008187] CPU: 0 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 14.008359] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.008374] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.008394] Call Trace: [ 14.008406] <TASK> [ 14.008419] dump_stack_lvl+0x73/0xb0 [ 14.008451] print_report+0xd1/0x610 [ 14.008564] ? __virt_addr_valid+0x1db/0x2d0 [ 14.008590] ? kasan_alloca_oob_left+0x320/0x380 [ 14.008612] ? kasan_addr_to_slab+0x11/0xa0 [ 14.008632] ? kasan_alloca_oob_left+0x320/0x380 [ 14.008655] kasan_report+0x141/0x180 [ 14.008677] ? kasan_alloca_oob_left+0x320/0x380 [ 14.008704] __asan_report_load1_noabort+0x18/0x20 [ 14.008728] kasan_alloca_oob_left+0x320/0x380 [ 14.008751] ? __pfx_sched_clock_cpu+0x10/0x10 [ 14.008773] ? finish_task_switch.isra.0+0x153/0x700 [ 14.008796] ? __schedule+0x100e/0x2b60 [ 14.008816] ? trace_hardirqs_on+0x37/0xe0 [ 14.008839] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 14.008865] ? __schedule+0x10cc/0x2b60 [ 14.008886] ? __pfx_read_tsc+0x10/0x10 [ 14.008907] ? ktime_get_ts64+0x86/0x230 [ 14.008931] kunit_try_run_case+0x1a5/0x480 [ 14.008962] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.008984] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.009042] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.009066] ? __kthread_parkme+0x82/0x180 [ 14.009088] ? preempt_count_sub+0x50/0x80 [ 14.009110] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.009135] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.009158] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.009182] kthread+0x337/0x6f0 [ 14.009202] ? trace_preempt_on+0x20/0xc0 [ 14.009223] ? __pfx_kthread+0x10/0x10 [ 14.009242] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.009264] ? calculate_sigpending+0x7b/0xa0 [ 14.009288] ? __pfx_kthread+0x10/0x10 [ 14.009321] ret_from_fork+0x116/0x1d0 [ 14.009340] ? __pfx_kthread+0x10/0x10 [ 14.009360] ret_from_fork_asm+0x1a/0x30 [ 14.009390] </TASK> [ 14.009401] [ 14.020848] The buggy address belongs to stack of task kunit_try_catch/270 [ 14.021333] [ 14.021413] The buggy address belongs to the physical page: [ 14.021857] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103ae7 [ 14.022385] flags: 0x200000000000000(node=0|zone=2) [ 14.022644] raw: 0200000000000000 ffffea00040eb9c8 ffffea00040eb9c8 0000000000000000 [ 14.023231] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.023698] page dumped because: kasan: bad access detected [ 14.024079] [ 14.024185] Memory state around the buggy address: [ 14.024599] ffff888103ae7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.025021] ffff888103ae7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.025489] >ffff888103ae7c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.025899] ^ [ 14.026258] ffff888103ae7c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.026619] ffff888103ae7d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.027099] ==================================================================