Date
July 23, 2025, 2:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.645094] ================================================================== [ 17.645444] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340 [ 17.645523] Read of size 1 at addr ffff800080a57b4a by task kunit_try_catch/253 [ 17.645756] [ 17.645820] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 17.645971] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.646267] Hardware name: linux,dummy-virt (DT) [ 17.646336] Call trace: [ 17.646362] show_stack+0x20/0x38 (C) [ 17.646511] dump_stack_lvl+0x8c/0xd0 [ 17.646568] print_report+0x310/0x5d0 [ 17.646684] kasan_report+0xdc/0x128 [ 17.646745] __asan_report_load1_noabort+0x20/0x30 [ 17.646815] kasan_alloca_oob_right+0x2dc/0x340 [ 17.647217] kunit_try_run_case+0x170/0x3f0 [ 17.647299] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.647547] kthread+0x328/0x630 [ 17.647735] ret_from_fork+0x10/0x20 [ 17.647940] [ 17.648064] The buggy address belongs to stack of task kunit_try_catch/253 [ 17.648145] [ 17.648369] The buggy address ffff800080a57b4a belongs to a vmalloc virtual mapping [ 17.648676] The buggy address belongs to the physical page: [ 17.648783] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103faa [ 17.648964] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.649107] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000 [ 17.649389] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 17.649532] page dumped because: kasan: bad access detected [ 17.649782] [ 17.649878] Memory state around the buggy address: [ 17.649929] ffff800080a57a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.650164] ffff800080a57a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 17.650539] >ffff800080a57b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 17.651041] ^ [ 17.651214] ffff800080a57b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2 [ 17.651356] ffff800080a57c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00 [ 17.651497] ==================================================================
[ 14.409300] ================================================================== [ 14.410827] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390 [ 14.411841] Read of size 1 at addr ffff888103a37c4a by task kunit_try_catch/270 [ 14.412070] [ 14.412915] CPU: 0 UID: 0 PID: 270 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 14.412966] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.412978] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.413001] Call Trace: [ 14.413014] <TASK> [ 14.413028] dump_stack_lvl+0x73/0xb0 [ 14.413059] print_report+0xd1/0x610 [ 14.413273] ? __virt_addr_valid+0x1db/0x2d0 [ 14.413304] ? kasan_alloca_oob_right+0x329/0x390 [ 14.413340] ? kasan_addr_to_slab+0x11/0xa0 [ 14.413361] ? kasan_alloca_oob_right+0x329/0x390 [ 14.413385] kasan_report+0x141/0x180 [ 14.413438] ? kasan_alloca_oob_right+0x329/0x390 [ 14.413466] __asan_report_load1_noabort+0x18/0x20 [ 14.413491] kasan_alloca_oob_right+0x329/0x390 [ 14.413515] ? finish_task_switch.isra.0+0x153/0x700 [ 14.413538] ? rt_mutex_adjust_prio_chain+0x195e/0x20e0 [ 14.413562] ? trace_hardirqs_on+0x37/0xe0 [ 14.413588] ? __pfx_kasan_alloca_oob_right+0x10/0x10 [ 14.413613] ? __schedule+0x10c6/0x2b60 [ 14.413636] ? __pfx_read_tsc+0x10/0x10 [ 14.413657] ? ktime_get_ts64+0x86/0x230 [ 14.413681] kunit_try_run_case+0x1a5/0x480 [ 14.413706] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.413728] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.413752] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.413775] ? __kthread_parkme+0x82/0x180 [ 14.413795] ? preempt_count_sub+0x50/0x80 [ 14.413830] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.413854] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.413877] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.413901] kthread+0x337/0x6f0 [ 14.413919] ? trace_preempt_on+0x20/0xc0 [ 14.413941] ? __pfx_kthread+0x10/0x10 [ 14.413960] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.413982] ? calculate_sigpending+0x7b/0xa0 [ 14.414006] ? __pfx_kthread+0x10/0x10 [ 14.414027] ret_from_fork+0x116/0x1d0 [ 14.414045] ? __pfx_kthread+0x10/0x10 [ 14.414066] ret_from_fork_asm+0x1a/0x30 [ 14.414117] </TASK> [ 14.414128] [ 14.425186] The buggy address belongs to stack of task kunit_try_catch/270 [ 14.425836] [ 14.425924] The buggy address belongs to the physical page: [ 14.426528] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103a37 [ 14.426953] flags: 0x200000000000000(node=0|zone=2) [ 14.427333] raw: 0200000000000000 ffffea00040e8dc8 ffffea00040e8dc8 0000000000000000 [ 14.427667] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 [ 14.428016] page dumped because: kasan: bad access detected [ 14.428505] [ 14.428602] Memory state around the buggy address: [ 14.428762] ffff888103a37b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.429287] ffff888103a37b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 14.429704] >ffff888103a37c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb [ 14.430107] ^ [ 14.430390] ffff888103a37c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 [ 14.430871] ffff888103a37d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 [ 14.431370] ==================================================================