Date
July 16, 2025, 12:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.730477] ================================================================== [ 33.730544] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x3c/0x2a0 [ 33.730599] Write of size 121 at addr fff00000c9bb7300 by task kunit_try_catch/316 [ 33.730653] [ 33.730685] CPU: 0 UID: 0 PID: 316 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT [ 33.730773] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.730801] Hardware name: linux,dummy-virt (DT) [ 33.730835] Call trace: [ 33.730858] show_stack+0x20/0x38 (C) [ 33.730917] dump_stack_lvl+0x8c/0xd0 [ 33.730967] print_report+0x118/0x5d0 [ 33.731022] kasan_report+0xdc/0x128 [ 33.731072] kasan_check_range+0x100/0x1a8 [ 33.731123] __kasan_check_write+0x20/0x30 [ 33.731172] strncpy_from_user+0x3c/0x2a0 [ 33.731235] copy_user_test_oob+0x5c0/0xec8 [ 33.731297] kunit_try_run_case+0x170/0x3f0 [ 33.731346] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.731399] kthread+0x328/0x630 [ 33.731444] ret_from_fork+0x10/0x20 [ 33.731492] [ 33.732575] Allocated by task 316: [ 33.732667] kasan_save_stack+0x3c/0x68 [ 33.732740] kasan_save_track+0x20/0x40 [ 33.732820] kasan_save_alloc_info+0x40/0x58 [ 33.732893] __kasan_kmalloc+0xd4/0xd8 [ 33.732960] __kmalloc_noprof+0x198/0x4c8 [ 33.733031] kunit_kmalloc_array+0x34/0x88 [ 33.733383] copy_user_test_oob+0xac/0xec8 [ 33.733773] kunit_try_run_case+0x170/0x3f0 [ 33.734108] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.734213] kthread+0x328/0x630 [ 33.734271] ret_from_fork+0x10/0x20 [ 33.734346] [ 33.734633] The buggy address belongs to the object at fff00000c9bb7300 [ 33.734633] which belongs to the cache kmalloc-128 of size 128 [ 33.734944] The buggy address is located 0 bytes inside of [ 33.734944] allocated 120-byte region [fff00000c9bb7300, fff00000c9bb7378) [ 33.735345] [ 33.735385] The buggy address belongs to the physical page: [ 33.735517] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109bb7 [ 33.735864] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.736196] page_type: f5(slab) [ 33.736364] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 33.736691] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 33.736803] page dumped because: kasan: bad access detected [ 33.736880] [ 33.737179] Memory state around the buggy address: [ 33.737277] fff00000c9bb7200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.737576] fff00000c9bb7280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.737801] >fff00000c9bb7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 33.738107] ^ [ 33.738254] fff00000c9bb7380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.738439] fff00000c9bb7400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.738551] ================================================================== [ 33.739615] ================================================================== [ 33.739670] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x270/0x2a0 [ 33.740114] Write of size 1 at addr fff00000c9bb7378 by task kunit_try_catch/316 [ 33.740237] [ 33.740383] CPU: 0 UID: 0 PID: 316 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT [ 33.740612] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.740644] Hardware name: linux,dummy-virt (DT) [ 33.740991] Call trace: [ 33.741099] show_stack+0x20/0x38 (C) [ 33.741444] dump_stack_lvl+0x8c/0xd0 [ 33.741533] print_report+0x118/0x5d0 [ 33.741651] kasan_report+0xdc/0x128 [ 33.741866] __asan_report_store1_noabort+0x20/0x30 [ 33.742037] strncpy_from_user+0x270/0x2a0 [ 33.742108] copy_user_test_oob+0x5c0/0xec8 [ 33.742422] kunit_try_run_case+0x170/0x3f0 [ 33.742528] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.742861] kthread+0x328/0x630 [ 33.742996] ret_from_fork+0x10/0x20 [ 33.743205] [ 33.743325] Allocated by task 316: [ 33.743374] kasan_save_stack+0x3c/0x68 [ 33.743544] kasan_save_track+0x20/0x40 [ 33.743742] kasan_save_alloc_info+0x40/0x58 [ 33.743944] __kasan_kmalloc+0xd4/0xd8 [ 33.743994] __kmalloc_noprof+0x198/0x4c8 [ 33.744037] kunit_kmalloc_array+0x34/0x88 [ 33.744085] copy_user_test_oob+0xac/0xec8 [ 33.744127] kunit_try_run_case+0x170/0x3f0 [ 33.744550] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.744836] kthread+0x328/0x630 [ 33.744886] ret_from_fork+0x10/0x20 [ 33.745161] [ 33.745233] The buggy address belongs to the object at fff00000c9bb7300 [ 33.745233] which belongs to the cache kmalloc-128 of size 128 [ 33.745608] The buggy address is located 0 bytes to the right of [ 33.745608] allocated 120-byte region [fff00000c9bb7300, fff00000c9bb7378) [ 33.745718] [ 33.745741] The buggy address belongs to the physical page: [ 33.745776] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109bb7 [ 33.745995] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.746200] page_type: f5(slab) [ 33.746659] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 33.746734] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 33.746944] page dumped because: kasan: bad access detected [ 33.747086] [ 33.747155] Memory state around the buggy address: [ 33.747204] fff00000c9bb7200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 33.747253] fff00000c9bb7280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.747466] >fff00000c9bb7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 33.747633] ^ [ 33.747993] fff00000c9bb7380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.748131] fff00000c9bb7400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.748246] ==================================================================
[ 27.341070] ================================================================== [ 27.341425] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x2e/0x1d0 [ 27.341856] Write of size 121 at addr ffff88810611db00 by task kunit_try_catch/334 [ 27.342195] [ 27.342316] CPU: 0 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) [ 27.342394] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.342409] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.342433] Call Trace: [ 27.342452] <TASK> [ 27.342481] dump_stack_lvl+0x73/0xb0 [ 27.342511] print_report+0xd1/0x610 [ 27.342533] ? __virt_addr_valid+0x1db/0x2d0 [ 27.342558] ? strncpy_from_user+0x2e/0x1d0 [ 27.342581] ? kasan_complete_mode_report_info+0x2a/0x200 [ 27.342608] ? strncpy_from_user+0x2e/0x1d0 [ 27.342643] kasan_report+0x141/0x180 [ 27.342666] ? strncpy_from_user+0x2e/0x1d0 [ 27.342702] kasan_check_range+0x10c/0x1c0 [ 27.342727] __kasan_check_write+0x18/0x20 [ 27.342762] strncpy_from_user+0x2e/0x1d0 [ 27.342785] ? __kasan_check_read+0x15/0x20 [ 27.342811] copy_user_test_oob+0x760/0x10f0 [ 27.342837] ? __pfx_copy_user_test_oob+0x10/0x10 [ 27.342860] ? finish_task_switch.isra.0+0x153/0x700 [ 27.342883] ? __switch_to+0x47/0xf80 [ 27.342909] ? __schedule+0x10c6/0x2b60 [ 27.342933] ? __pfx_read_tsc+0x10/0x10 [ 27.342955] ? ktime_get_ts64+0x86/0x230 [ 27.342980] kunit_try_run_case+0x1a5/0x480 [ 27.343005] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.343037] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.343060] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.343084] ? __kthread_parkme+0x82/0x180 [ 27.343116] ? preempt_count_sub+0x50/0x80 [ 27.343138] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.343163] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.343200] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.343227] kthread+0x337/0x6f0 [ 27.343247] ? trace_preempt_on+0x20/0xc0 [ 27.343282] ? __pfx_kthread+0x10/0x10 [ 27.343303] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.343334] ? calculate_sigpending+0x7b/0xa0 [ 27.343359] ? __pfx_kthread+0x10/0x10 [ 27.343390] ret_from_fork+0x116/0x1d0 [ 27.343410] ? __pfx_kthread+0x10/0x10 [ 27.343431] ret_from_fork_asm+0x1a/0x30 [ 27.343473] </TASK> [ 27.343484] [ 27.351281] Allocated by task 334: [ 27.351445] kasan_save_stack+0x45/0x70 [ 27.351663] kasan_save_track+0x18/0x40 [ 27.351836] kasan_save_alloc_info+0x3b/0x50 [ 27.352047] __kasan_kmalloc+0xb7/0xc0 [ 27.352214] __kmalloc_noprof+0x1c9/0x500 [ 27.352417] kunit_kmalloc_array+0x25/0x60 [ 27.352604] copy_user_test_oob+0xab/0x10f0 [ 27.352786] kunit_try_run_case+0x1a5/0x480 [ 27.352927] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.353173] kthread+0x337/0x6f0 [ 27.353360] ret_from_fork+0x116/0x1d0 [ 27.353555] ret_from_fork_asm+0x1a/0x30 [ 27.353791] [ 27.353856] The buggy address belongs to the object at ffff88810611db00 [ 27.353856] which belongs to the cache kmalloc-128 of size 128 [ 27.354350] The buggy address is located 0 bytes inside of [ 27.354350] allocated 120-byte region [ffff88810611db00, ffff88810611db78) [ 27.354848] [ 27.354940] The buggy address belongs to the physical page: [ 27.355197] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10611d [ 27.355554] flags: 0x200000000000000(node=0|zone=2) [ 27.355862] page_type: f5(slab) [ 27.356048] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 27.356369] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 27.356707] page dumped because: kasan: bad access detected [ 27.356994] [ 27.357059] Memory state around the buggy address: [ 27.357206] ffff88810611da00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.357582] ffff88810611da80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.357929] >ffff88810611db00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 27.358139] ^ [ 27.358382] ffff88810611db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.358889] ffff88810611dc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.359230] ================================================================== [ 27.361049] ================================================================== [ 27.361369] BUG: KASAN: slab-out-of-bounds in strncpy_from_user+0x1a5/0x1d0 [ 27.361952] Write of size 1 at addr ffff88810611db78 by task kunit_try_catch/334 [ 27.362185] [ 27.362286] CPU: 0 UID: 0 PID: 334 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6-next-20250716 #1 PREEMPT(voluntary) [ 27.362359] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.362374] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.362396] Call Trace: [ 27.362416] <TASK> [ 27.362431] dump_stack_lvl+0x73/0xb0 [ 27.362463] print_report+0xd1/0x610 [ 27.362486] ? __virt_addr_valid+0x1db/0x2d0 [ 27.362511] ? strncpy_from_user+0x1a5/0x1d0 [ 27.362535] ? kasan_complete_mode_report_info+0x2a/0x200 [ 27.362562] ? strncpy_from_user+0x1a5/0x1d0 [ 27.362587] kasan_report+0x141/0x180 [ 27.362610] ? strncpy_from_user+0x1a5/0x1d0 [ 27.362637] __asan_report_store1_noabort+0x1b/0x30 [ 27.362662] strncpy_from_user+0x1a5/0x1d0 [ 27.362687] copy_user_test_oob+0x760/0x10f0 [ 27.362713] ? __pfx_copy_user_test_oob+0x10/0x10 [ 27.362736] ? finish_task_switch.isra.0+0x153/0x700 [ 27.362759] ? __switch_to+0x47/0xf80 [ 27.362786] ? __schedule+0x10c6/0x2b60 [ 27.362809] ? __pfx_read_tsc+0x10/0x10 [ 27.362833] ? ktime_get_ts64+0x86/0x230 [ 27.362866] kunit_try_run_case+0x1a5/0x480 [ 27.362902] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.362925] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.362960] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.362983] ? __kthread_parkme+0x82/0x180 [ 27.363004] ? preempt_count_sub+0x50/0x80 [ 27.363028] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.363053] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.363079] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.363107] kthread+0x337/0x6f0 [ 27.363128] ? trace_preempt_on+0x20/0xc0 [ 27.363152] ? __pfx_kthread+0x10/0x10 [ 27.363173] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.363195] ? calculate_sigpending+0x7b/0xa0 [ 27.363229] ? __pfx_kthread+0x10/0x10 [ 27.363251] ret_from_fork+0x116/0x1d0 [ 27.363271] ? __pfx_kthread+0x10/0x10 [ 27.363303] ret_from_fork_asm+0x1a/0x30 [ 27.363344] </TASK> [ 27.363356] [ 27.370447] Allocated by task 334: [ 27.370678] kasan_save_stack+0x45/0x70 [ 27.370899] kasan_save_track+0x18/0x40 [ 27.371121] kasan_save_alloc_info+0x3b/0x50 [ 27.371348] __kasan_kmalloc+0xb7/0xc0 [ 27.371559] __kmalloc_noprof+0x1c9/0x500 [ 27.371747] kunit_kmalloc_array+0x25/0x60 [ 27.371904] copy_user_test_oob+0xab/0x10f0 [ 27.372123] kunit_try_run_case+0x1a5/0x480 [ 27.372351] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.372532] kthread+0x337/0x6f0 [ 27.372761] ret_from_fork+0x116/0x1d0 [ 27.372968] ret_from_fork_asm+0x1a/0x30 [ 27.373111] [ 27.373180] The buggy address belongs to the object at ffff88810611db00 [ 27.373180] which belongs to the cache kmalloc-128 of size 128 [ 27.373732] The buggy address is located 0 bytes to the right of [ 27.373732] allocated 120-byte region [ffff88810611db00, ffff88810611db78) [ 27.374248] [ 27.374346] The buggy address belongs to the physical page: [ 27.374599] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10611d [ 27.374948] flags: 0x200000000000000(node=0|zone=2) [ 27.375120] page_type: f5(slab) [ 27.375237] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 27.375475] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 27.375796] page dumped because: kasan: bad access detected [ 27.376043] [ 27.376131] Memory state around the buggy address: [ 27.376358] ffff88810611da00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.376675] ffff88810611da80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.377058] >ffff88810611db00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 27.377267] ^ [ 27.377538] ffff88810611db80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.378187] ffff88810611dc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.378510] ==================================================================