Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.542876] ================================================================== [ 18.542945] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x8c/0x250 [ 18.543208] Write of size 8 at addr fff00000c7025d78 by task kunit_try_catch/281 [ 18.543467] [ 18.543515] CPU: 0 UID: 0 PID: 281 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 18.543744] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.543812] Hardware name: linux,dummy-virt (DT) [ 18.543926] Call trace: [ 18.543986] show_stack+0x20/0x38 (C) [ 18.544088] dump_stack_lvl+0x8c/0xd0 [ 18.544153] print_report+0x118/0x5d0 [ 18.544616] kasan_report+0xdc/0x128 [ 18.544821] kasan_check_range+0x100/0x1a8 [ 18.544930] __kasan_check_write+0x20/0x30 [ 18.545027] copy_to_kernel_nofault+0x8c/0x250 [ 18.545340] copy_to_kernel_nofault_oob+0x1bc/0x418 [ 18.545545] kunit_try_run_case+0x170/0x3f0 [ 18.546082] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.546462] kthread+0x328/0x630 [ 18.546525] ret_from_fork+0x10/0x20 [ 18.546621] [ 18.546743] Allocated by task 281: [ 18.546811] kasan_save_stack+0x3c/0x68 [ 18.546875] kasan_save_track+0x20/0x40 [ 18.547234] kasan_save_alloc_info+0x40/0x58 [ 18.547598] __kasan_kmalloc+0xd4/0xd8 [ 18.547711] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.548170] copy_to_kernel_nofault_oob+0xc8/0x418 [ 18.548551] kunit_try_run_case+0x170/0x3f0 [ 18.548788] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.548907] kthread+0x328/0x630 [ 18.549041] ret_from_fork+0x10/0x20 [ 18.549187] [ 18.549267] The buggy address belongs to the object at fff00000c7025d00 [ 18.549267] which belongs to the cache kmalloc-128 of size 128 [ 18.549393] The buggy address is located 0 bytes to the right of [ 18.549393] allocated 120-byte region [fff00000c7025d00, fff00000c7025d78) [ 18.549483] [ 18.549782] The buggy address belongs to the physical page: [ 18.549942] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107025 [ 18.550011] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.550270] page_type: f5(slab) [ 18.550323] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.550537] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.550772] page dumped because: kasan: bad access detected [ 18.551040] [ 18.551280] Memory state around the buggy address: [ 18.551351] fff00000c7025c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.551413] fff00000c7025c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.551884] >fff00000c7025d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.551999] ^ [ 18.552050] fff00000c7025d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.552539] fff00000c7025e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.552851] ================================================================== [ 18.536119] ================================================================== [ 18.536398] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x204/0x250 [ 18.536478] Read of size 8 at addr fff00000c7025d78 by task kunit_try_catch/281 [ 18.536533] [ 18.536573] CPU: 0 UID: 0 PID: 281 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 18.537287] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.537365] Hardware name: linux,dummy-virt (DT) [ 18.537431] Call trace: [ 18.537469] show_stack+0x20/0x38 (C) [ 18.537526] dump_stack_lvl+0x8c/0xd0 [ 18.537755] print_report+0x118/0x5d0 [ 18.538013] kasan_report+0xdc/0x128 [ 18.538095] __asan_report_load8_noabort+0x20/0x30 [ 18.538211] copy_to_kernel_nofault+0x204/0x250 [ 18.538266] copy_to_kernel_nofault_oob+0x158/0x418 [ 18.538318] kunit_try_run_case+0x170/0x3f0 [ 18.538788] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.538889] kthread+0x328/0x630 [ 18.538974] ret_from_fork+0x10/0x20 [ 18.539027] [ 18.539158] Allocated by task 281: [ 18.539194] kasan_save_stack+0x3c/0x68 [ 18.539239] kasan_save_track+0x20/0x40 [ 18.539485] kasan_save_alloc_info+0x40/0x58 [ 18.539795] __kasan_kmalloc+0xd4/0xd8 [ 18.540050] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.540249] copy_to_kernel_nofault_oob+0xc8/0x418 [ 18.540412] kunit_try_run_case+0x170/0x3f0 [ 18.540458] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.540504] kthread+0x328/0x630 [ 18.540538] ret_from_fork+0x10/0x20 [ 18.540577] [ 18.540600] The buggy address belongs to the object at fff00000c7025d00 [ 18.540600] which belongs to the cache kmalloc-128 of size 128 [ 18.540674] The buggy address is located 0 bytes to the right of [ 18.540674] allocated 120-byte region [fff00000c7025d00, fff00000c7025d78) [ 18.540742] [ 18.540859] The buggy address belongs to the physical page: [ 18.540913] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107025 [ 18.541005] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.541069] page_type: f5(slab) [ 18.541130] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.541194] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.541253] page dumped because: kasan: bad access detected [ 18.541296] [ 18.541336] Memory state around the buggy address: [ 18.541384] fff00000c7025c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.541439] fff00000c7025c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.541482] >fff00000c7025d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.541523] ^ [ 18.541576] fff00000c7025d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.541621] fff00000c7025e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.541947] ==================================================================
[ 16.285257] ================================================================== [ 16.286395] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x99/0x260 [ 16.286703] Write of size 8 at addr ffff888102ad4d78 by task kunit_try_catch/299 [ 16.287396] [ 16.287648] CPU: 0 UID: 0 PID: 299 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 16.287811] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.287825] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.287862] Call Trace: [ 16.287875] <TASK> [ 16.287930] dump_stack_lvl+0x73/0xb0 [ 16.287963] print_report+0xd1/0x610 [ 16.287985] ? __virt_addr_valid+0x1db/0x2d0 [ 16.288008] ? copy_to_kernel_nofault+0x99/0x260 [ 16.288032] ? kasan_complete_mode_report_info+0x2a/0x200 [ 16.288054] ? copy_to_kernel_nofault+0x99/0x260 [ 16.288078] kasan_report+0x141/0x180 [ 16.288100] ? copy_to_kernel_nofault+0x99/0x260 [ 16.288128] kasan_check_range+0x10c/0x1c0 [ 16.288153] __kasan_check_write+0x18/0x20 [ 16.288172] copy_to_kernel_nofault+0x99/0x260 [ 16.288196] copy_to_kernel_nofault_oob+0x288/0x560 [ 16.288220] ? __pfx_copy_to_kernel_nofault_oob+0x10/0x10 [ 16.288243] ? finish_task_switch.isra.0+0x153/0x700 [ 16.288265] ? __schedule+0x10cc/0x2b60 [ 16.288286] ? trace_hardirqs_on+0x37/0xe0 [ 16.288316] ? __pfx_read_tsc+0x10/0x10 [ 16.288338] ? ktime_get_ts64+0x86/0x230 [ 16.288372] kunit_try_run_case+0x1a5/0x480 [ 16.288395] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.288418] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 16.288441] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 16.288464] ? __kthread_parkme+0x82/0x180 [ 16.288483] ? preempt_count_sub+0x50/0x80 [ 16.288505] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.288530] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.288554] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 16.288577] kthread+0x337/0x6f0 [ 16.288596] ? trace_preempt_on+0x20/0xc0 [ 16.288618] ? __pfx_kthread+0x10/0x10 [ 16.288639] ? _raw_spin_unlock_irq+0x47/0x80 [ 16.288660] ? calculate_sigpending+0x7b/0xa0 [ 16.288694] ? __pfx_kthread+0x10/0x10 [ 16.288715] ret_from_fork+0x116/0x1d0 [ 16.288735] ? __pfx_kthread+0x10/0x10 [ 16.288755] ret_from_fork_asm+0x1a/0x30 [ 16.288786] </TASK> [ 16.288796] [ 16.303017] Allocated by task 299: [ 16.303202] kasan_save_stack+0x45/0x70 [ 16.303397] kasan_save_track+0x18/0x40 [ 16.304047] kasan_save_alloc_info+0x3b/0x50 [ 16.304323] __kasan_kmalloc+0xb7/0xc0 [ 16.304751] __kmalloc_cache_noprof+0x189/0x420 [ 16.304988] copy_to_kernel_nofault_oob+0x12f/0x560 [ 16.305192] kunit_try_run_case+0x1a5/0x480 [ 16.305598] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.306135] kthread+0x337/0x6f0 [ 16.306312] ret_from_fork+0x116/0x1d0 [ 16.306678] ret_from_fork_asm+0x1a/0x30 [ 16.307019] [ 16.307120] The buggy address belongs to the object at ffff888102ad4d00 [ 16.307120] which belongs to the cache kmalloc-128 of size 128 [ 16.308141] The buggy address is located 0 bytes to the right of [ 16.308141] allocated 120-byte region [ffff888102ad4d00, ffff888102ad4d78) [ 16.309147] [ 16.309244] The buggy address belongs to the physical page: [ 16.309779] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ad4 [ 16.310137] flags: 0x200000000000000(node=0|zone=2) [ 16.310351] page_type: f5(slab) [ 16.310609] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 16.311326] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.311936] page dumped because: kasan: bad access detected [ 16.312420] [ 16.312672] Memory state around the buggy address: [ 16.313019] ffff888102ad4c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.313297] ffff888102ad4c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.314051] >ffff888102ad4d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.314547] ^ [ 16.314983] ffff888102ad4d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.315280] ffff888102ad4e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.315901] ================================================================== [ 16.253127] ================================================================== [ 16.253881] BUG: KASAN: slab-out-of-bounds in copy_to_kernel_nofault+0x225/0x260 [ 16.254523] Read of size 8 at addr ffff888102ad4d78 by task kunit_try_catch/299 [ 16.255272] [ 16.255562] CPU: 0 UID: 0 PID: 299 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 16.255618] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.255760] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.255786] Call Trace: [ 16.255801] <TASK> [ 16.255819] dump_stack_lvl+0x73/0xb0 [ 16.255854] print_report+0xd1/0x610 [ 16.255879] ? __virt_addr_valid+0x1db/0x2d0 [ 16.255915] ? copy_to_kernel_nofault+0x225/0x260 [ 16.255939] ? kasan_complete_mode_report_info+0x2a/0x200 [ 16.255961] ? copy_to_kernel_nofault+0x225/0x260 [ 16.255986] kasan_report+0x141/0x180 [ 16.256008] ? copy_to_kernel_nofault+0x225/0x260 [ 16.256036] __asan_report_load8_noabort+0x18/0x20 [ 16.256062] copy_to_kernel_nofault+0x225/0x260 [ 16.256087] copy_to_kernel_nofault_oob+0x1ed/0x560 [ 16.256111] ? __pfx_copy_to_kernel_nofault_oob+0x10/0x10 [ 16.256134] ? finish_task_switch.isra.0+0x153/0x700 [ 16.256158] ? __schedule+0x10cc/0x2b60 [ 16.256180] ? trace_hardirqs_on+0x37/0xe0 [ 16.256212] ? __pfx_read_tsc+0x10/0x10 [ 16.256234] ? ktime_get_ts64+0x86/0x230 [ 16.256259] kunit_try_run_case+0x1a5/0x480 [ 16.256285] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.256308] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 16.256332] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 16.256355] ? __kthread_parkme+0x82/0x180 [ 16.256376] ? preempt_count_sub+0x50/0x80 [ 16.256399] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.256423] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.256447] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 16.256471] kthread+0x337/0x6f0 [ 16.256491] ? trace_preempt_on+0x20/0xc0 [ 16.256513] ? __pfx_kthread+0x10/0x10 [ 16.256534] ? _raw_spin_unlock_irq+0x47/0x80 [ 16.256555] ? calculate_sigpending+0x7b/0xa0 [ 16.256580] ? __pfx_kthread+0x10/0x10 [ 16.256601] ret_from_fork+0x116/0x1d0 [ 16.256620] ? __pfx_kthread+0x10/0x10 [ 16.256641] ret_from_fork_asm+0x1a/0x30 [ 16.256672] </TASK> [ 16.256684] [ 16.269803] Allocated by task 299: [ 16.270203] kasan_save_stack+0x45/0x70 [ 16.270625] kasan_save_track+0x18/0x40 [ 16.271134] kasan_save_alloc_info+0x3b/0x50 [ 16.271515] __kasan_kmalloc+0xb7/0xc0 [ 16.271901] __kmalloc_cache_noprof+0x189/0x420 [ 16.272294] copy_to_kernel_nofault_oob+0x12f/0x560 [ 16.272996] kunit_try_run_case+0x1a5/0x480 [ 16.273217] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.273717] kthread+0x337/0x6f0 [ 16.274095] ret_from_fork+0x116/0x1d0 [ 16.274541] ret_from_fork_asm+0x1a/0x30 [ 16.274927] [ 16.275238] The buggy address belongs to the object at ffff888102ad4d00 [ 16.275238] which belongs to the cache kmalloc-128 of size 128 [ 16.275939] The buggy address is located 0 bytes to the right of [ 16.275939] allocated 120-byte region [ffff888102ad4d00, ffff888102ad4d78) [ 16.276775] [ 16.277189] The buggy address belongs to the physical page: [ 16.277784] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ad4 [ 16.278507] flags: 0x200000000000000(node=0|zone=2) [ 16.278950] page_type: f5(slab) [ 16.279353] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 16.280057] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.280680] page dumped because: kasan: bad access detected [ 16.280937] [ 16.281029] Memory state around the buggy address: [ 16.281237] ffff888102ad4c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.281880] ffff888102ad4c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.282516] >ffff888102ad4d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.283214] ^ [ 16.283768] ffff888102ad4d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.284062] ffff888102ad4e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.284343] ==================================================================