Date
July 8, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.458026] ================================================================== [ 33.458106] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310 [ 33.458163] Read of size 1 at addr ffff800080b37b5f by task kunit_try_catch/282 [ 33.458230] [ 33.458881] CPU: 0 UID: 0 PID: 282 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250708 #1 PREEMPT [ 33.458988] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.459175] Hardware name: linux,dummy-virt (DT) [ 33.459238] Call trace: [ 33.459293] show_stack+0x20/0x38 (C) [ 33.459356] dump_stack_lvl+0x8c/0xd0 [ 33.459430] print_report+0x310/0x5d0 [ 33.459480] kasan_report+0xdc/0x128 [ 33.459540] __asan_report_load1_noabort+0x20/0x30 [ 33.459912] kasan_alloca_oob_left+0x2b8/0x310 [ 33.460103] kunit_try_run_case+0x170/0x3f0 [ 33.460169] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.460413] kthread+0x328/0x630 [ 33.460478] ret_from_fork+0x10/0x20 [ 33.460537] [ 33.460710] The buggy address belongs to stack of task kunit_try_catch/282 [ 33.461117] [ 33.461167] The buggy address ffff800080b37b5f belongs to a vmalloc virtual mapping [ 33.461289] The buggy address belongs to the physical page: [ 33.461376] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109bc9 [ 33.461453] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.461882] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 33.462087] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 33.462155] page dumped because: kasan: bad access detected [ 33.462296] [ 33.462355] Memory state around the buggy address: [ 33.462416] ffff800080b37a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 33.462474] ffff800080b37a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 33.462725] >ffff800080b37b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb [ 33.462930] ^ [ 33.463044] ffff800080b37b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 33.463149] ffff800080b37c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 33.463192] ==================================================================
[ 25.237252] ================================================================== [ 25.237648] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380 [ 25.238466] Read of size 1 at addr ffff88810269fc3f by task kunit_try_catch/299 [ 25.239467] [ 25.239768] CPU: 1 UID: 0 PID: 299 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250708 #1 PREEMPT(voluntary) [ 25.239830] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.239844] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.239869] Call Trace: [ 25.239884] <TASK> [ 25.239906] dump_stack_lvl+0x73/0xb0 [ 25.239940] print_report+0xd1/0x610 [ 25.239965] ? __virt_addr_valid+0x1db/0x2d0 [ 25.239992] ? kasan_alloca_oob_left+0x320/0x380 [ 25.240015] ? kasan_addr_to_slab+0x11/0xa0 [ 25.240132] ? kasan_alloca_oob_left+0x320/0x380 [ 25.240166] kasan_report+0x141/0x180 [ 25.240191] ? kasan_alloca_oob_left+0x320/0x380 [ 25.240219] __asan_report_load1_noabort+0x18/0x20 [ 25.240293] kasan_alloca_oob_left+0x320/0x380 [ 25.240317] ? __kasan_check_write+0x18/0x20 [ 25.240345] ? __pfx_sched_clock_cpu+0x10/0x10 [ 25.240369] ? finish_task_switch.isra.0+0x153/0x700 [ 25.240395] ? down_read+0x1de/0x270 [ 25.240419] ? trace_hardirqs_on+0x37/0xe0 [ 25.240446] ? __pfx_kasan_alloca_oob_left+0x10/0x10 [ 25.240471] ? __schedule+0x10cc/0x2b60 [ 25.240500] ? __pfx_read_tsc+0x10/0x10 [ 25.240526] ? ktime_get_ts64+0x86/0x230 [ 25.240554] kunit_try_run_case+0x1a5/0x480 [ 25.240578] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.240599] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.240621] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.240650] ? __kthread_parkme+0x82/0x180 [ 25.240671] ? preempt_count_sub+0x50/0x80 [ 25.240695] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.240717] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.240841] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.240877] kthread+0x337/0x6f0 [ 25.240900] ? trace_preempt_on+0x20/0xc0 [ 25.240924] ? __pfx_kthread+0x10/0x10 [ 25.240947] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.240974] ? calculate_sigpending+0x7b/0xa0 [ 25.241003] ? __pfx_kthread+0x10/0x10 [ 25.241026] ret_from_fork+0x116/0x1d0 [ 25.241047] ? __pfx_kthread+0x10/0x10 [ 25.241069] ret_from_fork_asm+0x1a/0x30 [ 25.241105] </TASK> [ 25.241117] [ 25.254539] The buggy address belongs to stack of task kunit_try_catch/299 [ 25.254857] [ 25.255042] The buggy address belongs to the physical page: [ 25.255548] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10269f [ 25.256406] flags: 0x200000000000000(node=0|zone=2) [ 25.256997] raw: 0200000000000000 dead000000000100 dead000000000122 0000000000000000 [ 25.257654] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 25.258437] page dumped because: kasan: bad access detected [ 25.258703] [ 25.258824] Memory state around the buggy address: [ 25.259264] ffff88810269fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.259693] ffff88810269fb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.260385] >ffff88810269fc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 25.260717] ^ [ 25.260920] ffff88810269fc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 25.261602] ffff88810269fd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 25.262352] ==================================================================