Date
Dec. 4, 2024, 3:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.312678] ================================================================== [ 32.313990] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e8 [ 32.315238] Read of size 64 at addr fff00000c66e4e04 by task kunit_try_catch/170 [ 32.316816] [ 32.317352] CPU: 0 UID: 0 PID: 170 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241204 #1 [ 32.318951] Tainted: [B]=BAD_PAGE, [N]=TEST [ 32.320087] Hardware name: linux,dummy-virt (DT) [ 32.320843] Call trace: [ 32.321318] show_stack+0x20/0x38 (C) [ 32.322960] dump_stack_lvl+0x8c/0xd0 [ 32.323772] print_report+0x118/0x5e0 [ 32.324276] kasan_report+0xc8/0x118 [ 32.325163] kasan_check_range+0x100/0x1a8 [ 32.326195] __asan_memmove+0x3c/0x98 [ 32.327315] kmalloc_memmove_invalid_size+0x154/0x2e8 [ 32.328106] kunit_try_run_case+0x14c/0x3d0 [ 32.328859] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.329680] kthread+0x24c/0x2d0 [ 32.331217] ret_from_fork+0x10/0x20 [ 32.331777] [ 32.332093] Allocated by task 170: [ 32.332544] kasan_save_stack+0x3c/0x68 [ 32.333232] kasan_save_track+0x20/0x40 [ 32.334122] kasan_save_alloc_info+0x40/0x58 [ 32.335294] __kasan_kmalloc+0xd4/0xd8 [ 32.336069] __kmalloc_cache_noprof+0x15c/0x3c0 [ 32.336802] kmalloc_memmove_invalid_size+0xb0/0x2e8 [ 32.337566] kunit_try_run_case+0x14c/0x3d0 [ 32.339272] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.340210] kthread+0x24c/0x2d0 [ 32.340973] ret_from_fork+0x10/0x20 [ 32.341503] [ 32.342025] The buggy address belongs to the object at fff00000c66e4e00 [ 32.342025] which belongs to the cache kmalloc-64 of size 64 [ 32.344192] The buggy address is located 4 bytes inside of [ 32.344192] allocated 64-byte region [fff00000c66e4e00, fff00000c66e4e40) [ 32.346263] [ 32.346603] The buggy address belongs to the physical page: [ 32.348384] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1066e4 [ 32.349412] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.350813] page_type: f5(slab) [ 32.351307] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 32.352204] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 32.353110] page dumped because: kasan: bad access detected [ 32.353928] [ 32.354202] Memory state around the buggy address: [ 32.355041] fff00000c66e4d00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 32.356436] fff00000c66e4d80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 32.357761] >fff00000c66e4e00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 32.359515] ^ [ 32.360111] fff00000c66e4e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.361319] fff00000c66e4f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.362451] ==================================================================
[ 23.135739] ================================================================== [ 23.137318] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x170/0x330 [ 23.138573] Read of size 64 at addr ffff888101aec004 by task kunit_try_catch/190 [ 23.139918] [ 23.140448] CPU: 0 UID: 0 PID: 190 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241204 #1 [ 23.141246] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.142090] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.142943] Call Trace: [ 23.143526] <TASK> [ 23.143978] dump_stack_lvl+0x73/0xb0 [ 23.144651] print_report+0xd1/0x640 [ 23.145242] ? __virt_addr_valid+0x1db/0x2d0 [ 23.146105] ? kasan_complete_mode_report_info+0x2a/0x200 [ 23.146941] kasan_report+0x102/0x140 [ 23.147265] ? kmalloc_memmove_invalid_size+0x170/0x330 [ 23.148229] ? kmalloc_memmove_invalid_size+0x170/0x330 [ 23.148862] kasan_check_range+0x10c/0x1c0 [ 23.149321] __asan_memmove+0x27/0x70 [ 23.149941] kmalloc_memmove_invalid_size+0x170/0x330 [ 23.150835] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 23.151354] ? __schedule+0xc3e/0x2790 [ 23.152074] ? __pfx_read_tsc+0x10/0x10 [ 23.152477] ? ktime_get_ts64+0x86/0x230 [ 23.152866] kunit_try_run_case+0x1b3/0x490 [ 23.153311] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.154236] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 23.154663] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.155845] ? __kthread_parkme+0x82/0x160 [ 23.156260] ? preempt_count_sub+0x50/0x80 [ 23.156960] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.158022] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.158761] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.159213] kthread+0x257/0x310 [ 23.159592] ? __pfx_kthread+0x10/0x10 [ 23.160542] ret_from_fork+0x41/0x80 [ 23.161113] ? __pfx_kthread+0x10/0x10 [ 23.161700] ret_from_fork_asm+0x1a/0x30 [ 23.162086] </TASK> [ 23.162313] [ 23.162965] Allocated by task 190: [ 23.163250] kasan_save_stack+0x3d/0x60 [ 23.164068] kasan_save_track+0x18/0x40 [ 23.164353] kasan_save_alloc_info+0x3b/0x50 [ 23.165318] __kasan_kmalloc+0xb7/0xc0 [ 23.166092] __kmalloc_cache_noprof+0x184/0x410 [ 23.166776] kmalloc_memmove_invalid_size+0xad/0x330 [ 23.167087] kunit_try_run_case+0x1b3/0x490 [ 23.167988] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.168798] kthread+0x257/0x310 [ 23.169168] ret_from_fork+0x41/0x80 [ 23.169719] ret_from_fork_asm+0x1a/0x30 [ 23.170329] [ 23.170877] The buggy address belongs to the object at ffff888101aec000 [ 23.170877] which belongs to the cache kmalloc-64 of size 64 [ 23.172140] The buggy address is located 4 bytes inside of [ 23.172140] allocated 64-byte region [ffff888101aec000, ffff888101aec040) [ 23.173681] [ 23.174223] The buggy address belongs to the physical page: [ 23.175792] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101aec [ 23.176441] flags: 0x200000000000000(node=0|zone=2) [ 23.177014] page_type: f5(slab) [ 23.177957] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 23.178585] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 23.179320] page dumped because: kasan: bad access detected [ 23.180041] [ 23.180140] Memory state around the buggy address: [ 23.180362] ffff888101aebf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.181638] ffff888101aebf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.182408] >ffff888101aec000: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 23.183076] ^ [ 23.183585] ffff888101aec080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.184896] ffff888101aec100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.185571] ==================================================================