Date
July 23, 2025, 3:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.839894] ================================================================== [ 33.840015] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x204/0x250 [ 33.840089] Read of size 8 at addr fff00000c9c2f278 by task kunit_try_catch/314 [ 33.840154] [ 33.840196] CPU: 1 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250723 #1 PREEMPT [ 33.840294] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 33.840354] Hardware name: linux,dummy-virt (DT) [ 33.840390] Call trace: [ 33.840417] show_stack+0x20/0x38 (C) [ 33.840469] dump_stack_lvl+0x8c/0xd0 [ 33.840676] print_report+0x118/0x5e8 [ 33.840861] kasan_report+0xdc/0x128 [ 33.840931] __asan_report_load8_noabort+0x20/0x30 [ 33.841031] copy_to_kernel_nofault+0x204/0x250 [ 33.841083] copy_to_kernel_nofault_oob+0x158/0x418 [ 33.841153] kunit_try_run_case+0x170/0x3f0 [ 33.841205] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.841274] kthread+0x328/0x630 [ 33.841318] ret_from_fork+0x10/0x20 [ 33.841369] [ 33.841390] Allocated by task 314: [ 33.841420] kasan_save_stack+0x3c/0x68 [ 33.841463] kasan_save_track+0x20/0x40 [ 33.841500] kasan_save_alloc_info+0x40/0x58 [ 33.841542] __kasan_kmalloc+0xd4/0xd8 [ 33.841654] __kmalloc_cache_noprof+0x16c/0x3c0 [ 33.841915] copy_to_kernel_nofault_oob+0xc8/0x418 [ 33.841964] kunit_try_run_case+0x170/0x3f0 [ 33.842110] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.842184] kthread+0x328/0x630 [ 33.842252] ret_from_fork+0x10/0x20 [ 33.842367] [ 33.842391] The buggy address belongs to the object at fff00000c9c2f200 [ 33.842391] which belongs to the cache kmalloc-128 of size 128 [ 33.842454] The buggy address is located 0 bytes to the right of [ 33.842454] allocated 120-byte region [fff00000c9c2f200, fff00000c9c2f278) [ 33.842519] [ 33.842584] The buggy address belongs to the physical page: [ 33.842694] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109c2f [ 33.842756] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.842859] page_type: f5(slab) [ 33.843493] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 33.843563] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 33.843747] page dumped because: kasan: bad access detected [ 33.843927] [ 33.844100] Memory state around the buggy address: [ 33.844142] fff00000c9c2f100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.844465] fff00000c9c2f180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.844705] >fff00000c9c2f200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 33.844907] ^ [ 33.844966] fff00000c9c2f280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.845014] fff00000c9c2f300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.845131] ================================================================== [ 33.846422] ================================================================== [ 33.846738] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x8c/0x250 [ 33.846990] Write of size 8 at addr fff00000c9c2f278 by task kunit_try_catch/314 [ 33.847095] [ 33.847131] CPU: 1 UID: 0 PID: 314 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250723 #1 PREEMPT [ 33.847234] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 33.847267] Hardware name: linux,dummy-virt (DT) [ 33.847302] Call trace: [ 33.847420] show_stack+0x20/0x38 (C) [ 33.847723] dump_stack_lvl+0x8c/0xd0 [ 33.848034] print_report+0x118/0x5e8 [ 33.848110] kasan_report+0xdc/0x128 [ 33.848156] kasan_check_range+0x100/0x1a8 [ 33.848212] __kasan_check_write+0x20/0x30 [ 33.848421] copy_to_kernel_nofault+0x8c/0x250 [ 33.848473] copy_to_kernel_nofault_oob+0x1bc/0x418 [ 33.848571] kunit_try_run_case+0x170/0x3f0 [ 33.848621] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.848675] kthread+0x328/0x630 [ 33.848720] ret_from_fork+0x10/0x20 [ 33.849159] [ 33.849185] Allocated by task 314: [ 33.849427] kasan_save_stack+0x3c/0x68 [ 33.849473] kasan_save_track+0x20/0x40 [ 33.849645] kasan_save_alloc_info+0x40/0x58 [ 33.849691] __kasan_kmalloc+0xd4/0xd8 [ 33.849728] __kmalloc_cache_noprof+0x16c/0x3c0 [ 33.850164] copy_to_kernel_nofault_oob+0xc8/0x418 [ 33.850214] kunit_try_run_case+0x170/0x3f0 [ 33.850256] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.850303] kthread+0x328/0x630 [ 33.850339] ret_from_fork+0x10/0x20 [ 33.850395] [ 33.850417] The buggy address belongs to the object at fff00000c9c2f200 [ 33.850417] which belongs to the cache kmalloc-128 of size 128 [ 33.850479] The buggy address is located 0 bytes to the right of [ 33.850479] allocated 120-byte region [fff00000c9c2f200, fff00000c9c2f278) [ 33.851022] [ 33.851048] The buggy address belongs to the physical page: [ 33.851087] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109c2f [ 33.851148] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.851200] page_type: f5(slab) [ 33.851240] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 33.851304] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 33.851347] page dumped because: kasan: bad access detected [ 33.851463] [ 33.851779] Memory state around the buggy address: [ 33.852002] fff00000c9c2f100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.852162] fff00000c9c2f180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.852392] >fff00000c9c2f200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 33.852445] ^ [ 33.852493] fff00000c9c2f280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.852580] fff00000c9c2f300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.852621] ==================================================================
[ 29.211633] ================================================================== [ 29.212470] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x225/0x260 [ 29.213540] Read of size 8 at addr ffff8881060a7478 by task kunit_try_catch/330 [ 29.214360] [ 29.214468] CPU: 0 UID: 0 PID: 330 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250723 #1 PREEMPT(voluntary) [ 29.214528] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.214543] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 29.214568] Call Trace: [ 29.214583] <TASK> [ 29.214603] dump_stack_lvl+0x73/0xb0 [ 29.214638] print_report+0xd1/0x640 [ 29.214665] ? __virt_addr_valid+0x1db/0x2d0 [ 29.214692] ? copy_to_kernel_nofault+0x225/0x260 [ 29.214720] ? kasan_complete_mode_report_info+0x2a/0x200 [ 29.214748] ? copy_to_kernel_nofault+0x225/0x260 [ 29.214773] kasan_report+0x141/0x180 [ 29.214797] ? copy_to_kernel_nofault+0x225/0x260 [ 29.214827] __asan_report_load8_noabort+0x18/0x20 [ 29.214853] copy_to_kernel_nofault+0x225/0x260 [ 29.214880] copy_to_kernel_nofault_oob+0x1ed/0x560 [ 29.214906] ? __pfx_copy_to_kernel_nofault_oob+0x10/0x10 [ 29.214930] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 29.214956] ? trace_hardirqs_on+0x37/0xe0 [ 29.214991] ? __pfx_copy_to_kernel_nofault_oob+0x10/0x10 [ 29.215019] kunit_try_run_case+0x1a5/0x480 [ 29.215084] ? __pfx_kunit_try_run_case+0x10/0x10 [ 29.215108] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 29.215137] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 29.215176] ? __kthread_parkme+0x82/0x180 [ 29.215198] ? preempt_count_sub+0x50/0x80 [ 29.215223] ? __pfx_kunit_try_run_case+0x10/0x10 [ 29.215248] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.215275] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 29.215301] kthread+0x337/0x6f0 [ 29.215323] ? trace_preempt_on+0x20/0xc0 [ 29.215348] ? __pfx_kthread+0x10/0x10 [ 29.215370] ? _raw_spin_unlock_irq+0x47/0x80 [ 29.215427] ? calculate_sigpending+0x7b/0xa0 [ 29.215455] ? __pfx_kthread+0x10/0x10 [ 29.215477] ret_from_fork+0x116/0x1d0 [ 29.215500] ? __pfx_kthread+0x10/0x10 [ 29.215522] ret_from_fork_asm+0x1a/0x30 [ 29.215555] </TASK> [ 29.215567] [ 29.224552] Allocated by task 330: [ 29.224753] kasan_save_stack+0x45/0x70 [ 29.224940] kasan_save_track+0x18/0x40 [ 29.225254] kasan_save_alloc_info+0x3b/0x50 [ 29.225505] __kasan_kmalloc+0xb7/0xc0 [ 29.225819] __kmalloc_cache_noprof+0x189/0x420 [ 29.226052] copy_to_kernel_nofault_oob+0x12f/0x560 [ 29.226333] kunit_try_run_case+0x1a5/0x480 [ 29.226584] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.226791] kthread+0x337/0x6f0 [ 29.226951] ret_from_fork+0x116/0x1d0 [ 29.227197] ret_from_fork_asm+0x1a/0x30 [ 29.227446] [ 29.227782] The buggy address belongs to the object at ffff8881060a7400 [ 29.227782] which belongs to the cache kmalloc-128 of size 128 [ 29.228414] The buggy address is located 0 bytes to the right of [ 29.228414] allocated 120-byte region [ffff8881060a7400, ffff8881060a7478) [ 29.228831] [ 29.228904] The buggy address belongs to the physical page: [ 29.229368] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1060a7 [ 29.229724] flags: 0x200000000000000(node=0|zone=2) [ 29.229937] page_type: f5(slab) [ 29.230060] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 29.230782] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.231265] page dumped because: kasan: bad access detected [ 29.231522] [ 29.231801] Memory state around the buggy address: [ 29.232119] ffff8881060a7300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.232475] ffff8881060a7380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.232923] >ffff8881060a7400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.233197] ^ [ 29.233418] ffff8881060a7480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.233634] ffff8881060a7500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.233873] ================================================================== [ 29.234668] ================================================================== [ 29.235102] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x99/0x260 [ 29.235829] Write of size 8 at addr ffff8881060a7478 by task kunit_try_catch/330 [ 29.236182] [ 29.236278] CPU: 0 UID: 0 PID: 330 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250723 #1 PREEMPT(voluntary) [ 29.236331] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.236345] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 29.236724] Call Trace: [ 29.236740] <TASK> [ 29.236760] dump_stack_lvl+0x73/0xb0 [ 29.236795] print_report+0xd1/0x640 [ 29.236819] ? __virt_addr_valid+0x1db/0x2d0 [ 29.236846] ? copy_to_kernel_nofault+0x99/0x260 [ 29.236872] ? kasan_complete_mode_report_info+0x2a/0x200 [ 29.236900] ? copy_to_kernel_nofault+0x99/0x260 [ 29.236925] kasan_report+0x141/0x180 [ 29.236964] ? copy_to_kernel_nofault+0x99/0x260 [ 29.237031] kasan_check_range+0x10c/0x1c0 [ 29.237059] __kasan_check_write+0x18/0x20 [ 29.237083] copy_to_kernel_nofault+0x99/0x260 [ 29.237110] copy_to_kernel_nofault_oob+0x288/0x560 [ 29.237136] ? __pfx_copy_to_kernel_nofault_oob+0x10/0x10 [ 29.237173] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 29.237227] ? trace_hardirqs_on+0x37/0xe0 [ 29.237285] ? __pfx_copy_to_kernel_nofault_oob+0x10/0x10 [ 29.237338] kunit_try_run_case+0x1a5/0x480 [ 29.237366] ? __pfx_kunit_try_run_case+0x10/0x10 [ 29.237457] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 29.237489] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 29.237516] ? __kthread_parkme+0x82/0x180 [ 29.237538] ? preempt_count_sub+0x50/0x80 [ 29.237595] ? __pfx_kunit_try_run_case+0x10/0x10 [ 29.237621] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.237650] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 29.237675] kthread+0x337/0x6f0 [ 29.237696] ? trace_preempt_on+0x20/0xc0 [ 29.237720] ? __pfx_kthread+0x10/0x10 [ 29.237741] ? _raw_spin_unlock_irq+0x47/0x80 [ 29.237767] ? calculate_sigpending+0x7b/0xa0 [ 29.237792] ? __pfx_kthread+0x10/0x10 [ 29.237815] ret_from_fork+0x116/0x1d0 [ 29.237836] ? __pfx_kthread+0x10/0x10 [ 29.237858] ret_from_fork_asm+0x1a/0x30 [ 29.237890] </TASK> [ 29.237904] [ 29.250663] Allocated by task 330: [ 29.250873] kasan_save_stack+0x45/0x70 [ 29.251354] kasan_save_track+0x18/0x40 [ 29.251833] kasan_save_alloc_info+0x3b/0x50 [ 29.252011] __kasan_kmalloc+0xb7/0xc0 [ 29.252499] __kmalloc_cache_noprof+0x189/0x420 [ 29.252815] copy_to_kernel_nofault_oob+0x12f/0x560 [ 29.253090] kunit_try_run_case+0x1a5/0x480 [ 29.253258] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 29.253575] kthread+0x337/0x6f0 [ 29.253749] ret_from_fork+0x116/0x1d0 [ 29.253913] ret_from_fork_asm+0x1a/0x30 [ 29.254536] [ 29.254640] The buggy address belongs to the object at ffff8881060a7400 [ 29.254640] which belongs to the cache kmalloc-128 of size 128 [ 29.255322] The buggy address is located 0 bytes to the right of [ 29.255322] allocated 120-byte region [ffff8881060a7400, ffff8881060a7478) [ 29.256132] [ 29.256589] The buggy address belongs to the physical page: [ 29.256797] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1060a7 [ 29.257295] flags: 0x200000000000000(node=0|zone=2) [ 29.257750] page_type: f5(slab) [ 29.257896] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 29.258485] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.258817] page dumped because: kasan: bad access detected [ 29.259288] [ 29.259502] Memory state around the buggy address: [ 29.259891] ffff8881060a7300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.260375] ffff8881060a7380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.260660] >ffff8881060a7400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.261432] ^ [ 29.261953] ffff8881060a7480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.262341] ffff8881060a7500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.262709] ==================================================================