Date
Nov. 26, 2024, 6:09 a.m.
| Environment | |
|---|---|
| qemu-x86_64 |
[ 32.704475] ================================================================== [ 32.705122] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x4a/0x70 [ 32.705136] Read of size 121 at addr ffff8881028f6c00 by task kunit_try_catch/294 [ 32.705136] [ 32.705136] CPU: 0 UID: 0 PID: 294 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241126 #1 [ 32.705136] Tainted: [B]=BAD_PAGE, [N]=TEST [ 32.705136] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 32.705136] Call Trace: [ 32.705136] <TASK> [ 32.705136] dump_stack_lvl+0x73/0xb0 [ 32.705136] print_report+0xd1/0x640 [ 32.705136] ? __virt_addr_valid+0x1db/0x2d0 [ 32.705136] ? kasan_complete_mode_report_info+0x2a/0x200 [ 32.705136] kasan_report+0x102/0x140 [ 32.705136] ? _copy_to_user+0x4a/0x70 [ 32.705136] ? _copy_to_user+0x4a/0x70 [ 32.705136] kasan_check_range+0x10c/0x1c0 [ 32.705136] __kasan_check_read+0x15/0x20 [ 32.705136] _copy_to_user+0x4a/0x70 [ 32.705136] copy_user_test_oob+0x365/0x10f0 [ 32.705136] ? __pfx_copy_user_test_oob+0x10/0x10 [ 32.705136] ? __switch_to+0x5d9/0xf60 [ 32.705136] ? __schedule+0xc3e/0x2790 [ 32.705136] ? ktime_get_ts64+0x84/0x230 [ 32.705136] kunit_try_run_case+0x1b3/0x490 [ 32.705136] ? __pfx_kunit_try_run_case+0x10/0x10 [ 32.705136] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 32.705136] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 32.705136] ? __kthread_parkme+0x82/0x160 [ 32.705136] ? preempt_count_sub+0x50/0x80 [ 32.705136] ? __pfx_kunit_try_run_case+0x10/0x10 [ 32.705136] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 32.705136] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 32.705136] kthread+0x257/0x310 [ 32.705136] ? __pfx_kthread+0x10/0x10 [ 32.705136] ret_from_fork+0x41/0x80 [ 32.705136] ? __pfx_kthread+0x10/0x10 [ 32.705136] ret_from_fork_asm+0x1a/0x30 [ 32.705136] </TASK> [ 32.705136] [ 32.705136] Allocated by task 294: [ 32.705136] kasan_save_stack+0x3d/0x60 [ 32.705136] kasan_save_track+0x18/0x40 [ 32.705136] kasan_save_alloc_info+0x3b/0x50 [ 32.705136] __kasan_kmalloc+0xb7/0xc0 [ 32.705136] __kmalloc_noprof+0x1c4/0x500 [ 32.705136] kunit_kmalloc_array+0x25/0x60 [ 32.705136] copy_user_test_oob+0xac/0x10f0 [ 32.705136] kunit_try_run_case+0x1b3/0x490 [ 32.705136] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 32.705136] kthread+0x257/0x310 [ 32.705136] ret_from_fork+0x41/0x80 [ 32.705136] ret_from_fork_asm+0x1a/0x30 [ 32.705136] [ 32.705136] The buggy address belongs to the object at ffff8881028f6c00 [ 32.705136] which belongs to the cache kmalloc-128 of size 128 [ 32.705136] The buggy address is located 0 bytes inside of [ 32.705136] allocated 120-byte region [ffff8881028f6c00, ffff8881028f6c78) [ 32.705136] [ 32.705136] The buggy address belongs to the physical page: [ 32.705136] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028f6 [ 32.705136] flags: 0x200000000000000(node=0|zone=2) [ 32.705136] page_type: f5(slab) [ 32.705136] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 32.705136] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000 [ 32.705136] page dumped because: kasan: bad access detected [ 32.705136] [ 32.705136] Memory state around the buggy address: [ 32.705136] ffff8881028f6b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.705136] ffff8881028f6b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.705136] >ffff8881028f6c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 32.705136] ^ [ 32.705136] ffff8881028f6c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.705136] ffff8881028f6d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.705136] ==================================================================
[ 27.430357] ================================================================== [ 27.431173] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0x4a/0x70 [ 27.431768] Read of size 121 at addr ffff8881028cc000 by task kunit_try_catch/292 [ 27.432338] [ 27.432577] CPU: 0 UID: 0 PID: 292 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241126 #1 [ 27.434158] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.434850] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 27.435692] Call Trace: [ 27.435892] <TASK> [ 27.436457] dump_stack_lvl+0x73/0xb0 [ 27.436967] print_report+0xd1/0x640 [ 27.437386] ? __virt_addr_valid+0x1db/0x2d0 [ 27.437961] ? kasan_complete_mode_report_info+0x2a/0x200 [ 27.438355] kasan_report+0x102/0x140 [ 27.438925] ? _copy_to_user+0x4a/0x70 [ 27.439374] ? _copy_to_user+0x4a/0x70 [ 27.439782] kasan_check_range+0x10c/0x1c0 [ 27.440202] __kasan_check_read+0x15/0x20 [ 27.440746] _copy_to_user+0x4a/0x70 [ 27.441174] copy_user_test_oob+0x365/0x10f0 [ 27.441699] ? __pfx_copy_user_test_oob+0x10/0x10 [ 27.442111] ? finish_task_switch.isra.0+0x153/0x700 [ 27.442712] ? __switch_to+0x5d9/0xf60 [ 27.443194] ? __schedule+0xc3e/0x2790 [ 27.443526] ? __pfx_read_tsc+0x10/0x10 [ 27.444044] ? ktime_get_ts64+0x84/0x230 [ 27.444535] kunit_try_run_case+0x1b3/0x490 [ 27.444957] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.445326] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 27.445800] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.446249] ? __kthread_parkme+0x82/0x160 [ 27.447773] ? preempt_count_sub+0x50/0x80 [ 27.448064] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.448875] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.449622] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.450294] kthread+0x257/0x310 [ 27.451011] ? __pfx_kthread+0x10/0x10 [ 27.451601] ret_from_fork+0x41/0x80 [ 27.451941] ? __pfx_kthread+0x10/0x10 [ 27.452365] ret_from_fork_asm+0x1a/0x30 [ 27.452728] </TASK> [ 27.453019] [ 27.453246] Allocated by task 292: [ 27.453687] kasan_save_stack+0x3d/0x60 [ 27.453975] kasan_save_track+0x18/0x40 [ 27.454424] kasan_save_alloc_info+0x3b/0x50 [ 27.455006] __kasan_kmalloc+0xb7/0xc0 [ 27.455531] __kmalloc_noprof+0x1c4/0x500 [ 27.456015] kunit_kmalloc_array+0x25/0x60 [ 27.456327] copy_user_test_oob+0xac/0x10f0 [ 27.456865] kunit_try_run_case+0x1b3/0x490 [ 27.457366] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 27.457774] kthread+0x257/0x310 [ 27.458178] ret_from_fork+0x41/0x80 [ 27.458696] ret_from_fork_asm+0x1a/0x30 [ 27.459157] [ 27.459416] The buggy address belongs to the object at ffff8881028cc000 [ 27.459416] which belongs to the cache kmalloc-128 of size 128 [ 27.460125] The buggy address is located 0 bytes inside of [ 27.460125] allocated 120-byte region [ffff8881028cc000, ffff8881028cc078) [ 27.461232] [ 27.461504] The buggy address belongs to the physical page: [ 27.462106] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028cc [ 27.462669] flags: 0x200000000000000(node=0|zone=2) [ 27.463149] page_type: f5(slab) [ 27.463618] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 27.464035] raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000 [ 27.464801] page dumped because: kasan: bad access detected [ 27.465167] [ 27.465478] Memory state around the buggy address: [ 27.466051] ffff8881028cbf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.466536] ffff8881028cbf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.467144] >ffff8881028cc000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 27.467543] ^ [ 27.467971] ffff8881028cc080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.468719] ffff8881028cc100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.469363] ==================================================================