Date
July 25, 2025, 3:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 35.688926] ================================================================== [ 35.688986] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x3c/0x2a0 [ 35.689493] Write of size 121 at addr fff00000c9a8b900 by task kunit_try_catch/317 [ 35.689699] [ 35.689745] CPU: 0 UID: 0 PID: 317 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250725 #1 PREEMPT [ 35.690192] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 35.690246] Hardware name: linux,dummy-virt (DT) [ 35.690283] Call trace: [ 35.690309] show_stack+0x20/0x38 (C) [ 35.690575] dump_stack_lvl+0x8c/0xd0 [ 35.690675] print_report+0x118/0x5e8 [ 35.691004] kasan_report+0xdc/0x128 [ 35.691446] kasan_check_range+0x100/0x1a8 [ 35.691546] __kasan_check_write+0x20/0x30 [ 35.691682] strncpy_from_user+0x3c/0x2a0 [ 35.691787] copy_user_test_oob+0x5c0/0xec8 [ 35.691915] kunit_try_run_case+0x170/0x3f0 [ 35.691967] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.692043] kthread+0x328/0x630 [ 35.692089] ret_from_fork+0x10/0x20 [ 35.692752] [ 35.692959] Allocated by task 317: [ 35.693186] kasan_save_stack+0x3c/0x68 [ 35.693256] kasan_save_track+0x20/0x40 [ 35.693437] kasan_save_alloc_info+0x40/0x58 [ 35.693652] __kasan_kmalloc+0xd4/0xd8 [ 35.693947] __kmalloc_noprof+0x198/0x4c8 [ 35.694060] kunit_kmalloc_array+0x34/0x88 [ 35.694105] copy_user_test_oob+0xac/0xec8 [ 35.694947] kunit_try_run_case+0x170/0x3f0 [ 35.695017] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.695064] kthread+0x328/0x630 [ 35.695101] ret_from_fork+0x10/0x20 [ 35.695140] [ 35.695687] The buggy address belongs to the object at fff00000c9a8b900 [ 35.695687] which belongs to the cache kmalloc-128 of size 128 [ 35.695890] The buggy address is located 0 bytes inside of [ 35.695890] allocated 120-byte region [fff00000c9a8b900, fff00000c9a8b978) [ 35.696191] [ 35.696454] The buggy address belongs to the physical page: [ 35.696784] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a8b [ 35.697177] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 35.697245] page_type: f5(slab) [ 35.697738] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 35.698162] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 35.698305] page dumped because: kasan: bad access detected [ 35.698393] [ 35.698598] Memory state around the buggy address: [ 35.698844] fff00000c9a8b800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.698915] fff00000c9a8b880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.698966] >fff00000c9a8b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 35.699594] ^ [ 35.699775] fff00000c9a8b980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.699904] fff00000c9a8ba00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.700014] ================================================================== [ 35.701515] ================================================================== [ 35.701572] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x270/0x2a0 [ 35.702042] Write of size 1 at addr fff00000c9a8b978 by task kunit_try_catch/317 [ 35.702173] [ 35.702218] CPU: 0 UID: 0 PID: 317 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250725 #1 PREEMPT [ 35.702828] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 35.702932] Hardware name: linux,dummy-virt (DT) [ 35.703028] Call trace: [ 35.703057] show_stack+0x20/0x38 (C) [ 35.703117] dump_stack_lvl+0x8c/0xd0 [ 35.703167] print_report+0x118/0x5e8 [ 35.703226] kasan_report+0xdc/0x128 [ 35.703719] __asan_report_store1_noabort+0x20/0x30 [ 35.704067] strncpy_from_user+0x270/0x2a0 [ 35.704192] copy_user_test_oob+0x5c0/0xec8 [ 35.704269] kunit_try_run_case+0x170/0x3f0 [ 35.704409] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.704898] kthread+0x328/0x630 [ 35.705262] ret_from_fork+0x10/0x20 [ 35.705659] [ 35.705892] Allocated by task 317: [ 35.706135] kasan_save_stack+0x3c/0x68 [ 35.706249] kasan_save_track+0x20/0x40 [ 35.706298] kasan_save_alloc_info+0x40/0x58 [ 35.706478] __kasan_kmalloc+0xd4/0xd8 [ 35.706724] __kmalloc_noprof+0x198/0x4c8 [ 35.707130] kunit_kmalloc_array+0x34/0x88 [ 35.707535] copy_user_test_oob+0xac/0xec8 [ 35.707624] kunit_try_run_case+0x170/0x3f0 [ 35.707825] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.707921] kthread+0x328/0x630 [ 35.708188] ret_from_fork+0x10/0x20 [ 35.708243] [ 35.708268] The buggy address belongs to the object at fff00000c9a8b900 [ 35.708268] which belongs to the cache kmalloc-128 of size 128 [ 35.708360] The buggy address is located 0 bytes to the right of [ 35.708360] allocated 120-byte region [fff00000c9a8b900, fff00000c9a8b978) [ 35.708434] [ 35.708463] The buggy address belongs to the physical page: [ 35.708518] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a8b [ 35.708574] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 35.708627] page_type: f5(slab) [ 35.708690] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 35.708753] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 35.708808] page dumped because: kasan: bad access detected [ 35.708841] [ 35.708863] Memory state around the buggy address: [ 35.708898] fff00000c9a8b800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.708952] fff00000c9a8b880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.708997] >fff00000c9a8b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 35.709054] ^ [ 35.709109] fff00000c9a8b980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.709154] fff00000c9a8ba00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 35.709202] ==================================================================
[ 30.196760] ================================================================== [ 30.197191] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x1a5/0x1d0 [ 30.197532] Write of size 1 at addr ffff888106253878 by task kunit_try_catch/334 [ 30.197869] [ 30.197982] CPU: 1 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250725 #1 PREEMPT(voluntary) [ 30.198030] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.198064] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 30.198086] Call Trace: [ 30.198101] <TASK> [ 30.198115] dump_stack_lvl+0x73/0xb0 [ 30.198144] print_report+0xd1/0x640 [ 30.198168] ? __virt_addr_valid+0x1db/0x2d0 [ 30.198193] ? strncpy_from_user+0x1a5/0x1d0 [ 30.198218] ? kasan_complete_mode_report_info+0x2a/0x200 [ 30.198246] ? strncpy_from_user+0x1a5/0x1d0 [ 30.198271] kasan_report+0x141/0x180 [ 30.198296] ? strncpy_from_user+0x1a5/0x1d0 [ 30.198325] __asan_report_store1_noabort+0x1b/0x30 [ 30.198352] strncpy_from_user+0x1a5/0x1d0 [ 30.198379] copy_user_test_oob+0x760/0x10f0 [ 30.198406] ? __pfx_copy_user_test_oob+0x10/0x10 [ 30.198431] ? finish_task_switch.isra.0+0x153/0x700 [ 30.198454] ? __switch_to+0x47/0xf80 [ 30.198481] ? __schedule+0x10da/0x2b60 [ 30.198504] ? __pfx_read_tsc+0x10/0x10 [ 30.198528] ? ktime_get_ts64+0x86/0x230 [ 30.198553] kunit_try_run_case+0x1a5/0x480 [ 30.198579] ? __pfx_kunit_try_run_case+0x10/0x10 [ 30.198603] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 30.198628] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 30.198655] ? __kthread_parkme+0x82/0x180 [ 30.198677] ? preempt_count_sub+0x50/0x80 [ 30.198701] ? __pfx_kunit_try_run_case+0x10/0x10 [ 30.198727] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 30.198754] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 30.198780] kthread+0x337/0x6f0 [ 30.198801] ? trace_preempt_on+0x20/0xc0 [ 30.198825] ? __pfx_kthread+0x10/0x10 [ 30.198848] ? _raw_spin_unlock_irq+0x47/0x80 [ 30.198873] ? calculate_sigpending+0x7b/0xa0 [ 30.198899] ? __pfx_kthread+0x10/0x10 [ 30.198922] ret_from_fork+0x116/0x1d0 [ 30.198952] ? __pfx_kthread+0x10/0x10 [ 30.198975] ret_from_fork_asm+0x1a/0x30 [ 30.199007] </TASK> [ 30.199019] [ 30.207524] Allocated by task 334: [ 30.207726] kasan_save_stack+0x45/0x70 [ 30.208015] kasan_save_track+0x18/0x40 [ 30.208223] kasan_save_alloc_info+0x3b/0x50 [ 30.208457] __kasan_kmalloc+0xb7/0xc0 [ 30.208616] __kmalloc_noprof+0x1ca/0x510 [ 30.208837] kunit_kmalloc_array+0x25/0x60 [ 30.209032] copy_user_test_oob+0xab/0x10f0 [ 30.209250] kunit_try_run_case+0x1a5/0x480 [ 30.209453] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 30.209724] kthread+0x337/0x6f0 [ 30.210016] ret_from_fork+0x116/0x1d0 [ 30.210222] ret_from_fork_asm+0x1a/0x30 [ 30.210398] [ 30.210471] The buggy address belongs to the object at ffff888106253800 [ 30.210471] which belongs to the cache kmalloc-128 of size 128 [ 30.211163] The buggy address is located 0 bytes to the right of [ 30.211163] allocated 120-byte region [ffff888106253800, ffff888106253878) [ 30.211638] [ 30.211711] The buggy address belongs to the physical page: [ 30.211911] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106253 [ 30.212397] flags: 0x200000000000000(node=0|zone=2) [ 30.212593] page_type: f5(slab) [ 30.212781] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 30.213187] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 30.213564] page dumped because: kasan: bad access detected [ 30.213847] [ 30.213969] Memory state around the buggy address: [ 30.214219] ffff888106253700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.214598] ffff888106253780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.215135] >ffff888106253800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 30.215452] ^ [ 30.215765] ffff888106253880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.216097] ffff888106253900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.216411] ================================================================== [ 30.176399] ================================================================== [ 30.176706] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x2e/0x1d0 [ 30.177168] Write of size 121 at addr ffff888106253800 by task kunit_try_catch/334 [ 30.177522] [ 30.177645] CPU: 1 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250725 #1 PREEMPT(voluntary) [ 30.177707] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.177721] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 30.177757] Call Trace: [ 30.177805] <TASK> [ 30.177835] dump_stack_lvl+0x73/0xb0 [ 30.177878] print_report+0xd1/0x640 [ 30.177916] ? __virt_addr_valid+0x1db/0x2d0 [ 30.177966] ? strncpy_from_user+0x2e/0x1d0 [ 30.178004] ? kasan_complete_mode_report_info+0x2a/0x200 [ 30.178064] ? strncpy_from_user+0x2e/0x1d0 [ 30.178090] kasan_report+0x141/0x180 [ 30.178114] ? strncpy_from_user+0x2e/0x1d0 [ 30.178143] kasan_check_range+0x10c/0x1c0 [ 30.178169] __kasan_check_write+0x18/0x20 [ 30.178194] strncpy_from_user+0x2e/0x1d0 [ 30.178218] ? __kasan_check_read+0x15/0x20 [ 30.178245] copy_user_test_oob+0x760/0x10f0 [ 30.178272] ? __pfx_copy_user_test_oob+0x10/0x10 [ 30.178297] ? finish_task_switch.isra.0+0x153/0x700 [ 30.178320] ? __switch_to+0x47/0xf80 [ 30.178346] ? __schedule+0x10da/0x2b60 [ 30.178370] ? __pfx_read_tsc+0x10/0x10 [ 30.178393] ? ktime_get_ts64+0x86/0x230 [ 30.178419] kunit_try_run_case+0x1a5/0x480 [ 30.178444] ? __pfx_kunit_try_run_case+0x10/0x10 [ 30.178469] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 30.178493] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 30.178521] ? __kthread_parkme+0x82/0x180 [ 30.178544] ? preempt_count_sub+0x50/0x80 [ 30.178568] ? __pfx_kunit_try_run_case+0x10/0x10 [ 30.178595] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 30.178621] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 30.178647] kthread+0x337/0x6f0 [ 30.178668] ? trace_preempt_on+0x20/0xc0 [ 30.178693] ? __pfx_kthread+0x10/0x10 [ 30.178715] ? _raw_spin_unlock_irq+0x47/0x80 [ 30.178741] ? calculate_sigpending+0x7b/0xa0 [ 30.178767] ? __pfx_kthread+0x10/0x10 [ 30.178790] ret_from_fork+0x116/0x1d0 [ 30.178825] ? __pfx_kthread+0x10/0x10 [ 30.178848] ret_from_fork_asm+0x1a/0x30 [ 30.178881] </TASK> [ 30.178893] [ 30.187445] Allocated by task 334: [ 30.187804] kasan_save_stack+0x45/0x70 [ 30.188082] kasan_save_track+0x18/0x40 [ 30.188233] kasan_save_alloc_info+0x3b/0x50 [ 30.188384] __kasan_kmalloc+0xb7/0xc0 [ 30.188515] __kmalloc_noprof+0x1ca/0x510 [ 30.188654] kunit_kmalloc_array+0x25/0x60 [ 30.188798] copy_user_test_oob+0xab/0x10f0 [ 30.189076] kunit_try_run_case+0x1a5/0x480 [ 30.189289] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 30.189729] kthread+0x337/0x6f0 [ 30.189895] ret_from_fork+0x116/0x1d0 [ 30.190168] ret_from_fork_asm+0x1a/0x30 [ 30.190390] [ 30.190483] The buggy address belongs to the object at ffff888106253800 [ 30.190483] which belongs to the cache kmalloc-128 of size 128 [ 30.191148] The buggy address is located 0 bytes inside of [ 30.191148] allocated 120-byte region [ffff888106253800, ffff888106253878) [ 30.191677] [ 30.191789] The buggy address belongs to the physical page: [ 30.192104] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106253 [ 30.192470] flags: 0x200000000000000(node=0|zone=2) [ 30.192672] page_type: f5(slab) [ 30.192902] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 30.193260] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 30.193568] page dumped because: kasan: bad access detected [ 30.193861] [ 30.193933] Memory state around the buggy address: [ 30.194219] ffff888106253700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.194518] ffff888106253780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.194854] >ffff888106253800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 30.195179] ^ [ 30.195478] ffff888106253880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.195827] ffff888106253900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.196182] ==================================================================