Date
Nov. 27, 2024, 3:37 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 48.086405] ================================================================== [ 48.087636] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 48.088528] Read of size 18446744073709551614 at addr fff00000c60d3304 by task kunit_try_catch/169 [ 48.090953] [ 48.091274] CPU: 1 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 48.092471] Tainted: [B]=BAD_PAGE, [N]=TEST [ 48.092971] Hardware name: linux,dummy-virt (DT) [ 48.093584] Call trace: [ 48.093940] show_stack+0x20/0x38 (C) [ 48.094570] dump_stack_lvl+0x8c/0xd0 [ 48.095503] print_report+0x118/0x5e0 [ 48.096021] kasan_report+0xc8/0x118 [ 48.096642] kasan_check_range+0x100/0x1a8 [ 48.097805] __asan_memmove+0x3c/0x98 [ 48.098372] kmalloc_memmove_negative_size+0x154/0x2e0 [ 48.098991] kunit_try_run_case+0x14c/0x3d0 [ 48.099694] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.100408] kthread+0x24c/0x2d0 [ 48.101021] ret_from_fork+0x10/0x20 [ 48.101888] [ 48.102174] Allocated by task 169: [ 48.102703] kasan_save_stack+0x3c/0x68 [ 48.103342] kasan_save_track+0x20/0x40 [ 48.103873] kasan_save_alloc_info+0x40/0x58 [ 48.104439] __kasan_kmalloc+0xd4/0xd8 [ 48.105308] __kmalloc_cache_noprof+0x15c/0x3c0 [ 48.106011] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 48.106677] kunit_try_run_case+0x14c/0x3d0 [ 48.107267] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 48.108075] kthread+0x24c/0x2d0 [ 48.108691] ret_from_fork+0x10/0x20 [ 48.109620] [ 48.110275] The buggy address belongs to the object at fff00000c60d3300 [ 48.110275] which belongs to the cache kmalloc-64 of size 64 [ 48.112441] The buggy address is located 4 bytes inside of [ 48.112441] 64-byte region [fff00000c60d3300, fff00000c60d3340) [ 48.113794] [ 48.114558] The buggy address belongs to the physical page: [ 48.115247] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1060d3 [ 48.116222] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 48.117207] page_type: f5(slab) [ 48.117692] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 48.118976] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 48.120121] page dumped because: kasan: bad access detected [ 48.121385] [ 48.121777] Memory state around the buggy address: [ 48.122566] fff00000c60d3200: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 48.123658] fff00000c60d3280: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 48.124073] >fff00000c60d3300: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 48.124592] ^ [ 48.125553] fff00000c60d3380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.126722] fff00000c60d3400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 48.127817] ==================================================================
[ 25.314754] ================================================================== [ 25.315967] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x172/0x330 [ 25.317589] Read of size 18446744073709551614 at addr ffff888101a9ed04 by task kunit_try_catch/188 [ 25.319540] [ 25.320203] CPU: 1 UID: 0 PID: 188 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 25.321240] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.321558] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.322580] Call Trace: [ 25.322921] <TASK> [ 25.323240] dump_stack_lvl+0x73/0xb0 [ 25.323715] print_report+0xd1/0x640 [ 25.324392] ? __virt_addr_valid+0x1db/0x2d0 [ 25.324822] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.326329] kasan_report+0x102/0x140 [ 25.326717] ? kmalloc_memmove_negative_size+0x172/0x330 [ 25.327839] ? kmalloc_memmove_negative_size+0x172/0x330 [ 25.328539] kasan_check_range+0x10c/0x1c0 [ 25.329205] __asan_memmove+0x27/0x70 [ 25.329663] kmalloc_memmove_negative_size+0x172/0x330 [ 25.330481] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 25.331671] ? __schedule+0xc3e/0x2790 [ 25.332724] ? __pfx_read_tsc+0x10/0x10 [ 25.333108] ? ktime_get_ts64+0x84/0x230 [ 25.334139] kunit_try_run_case+0x1b3/0x490 [ 25.334522] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.335017] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 25.335710] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.336728] ? __kthread_parkme+0x82/0x160 [ 25.337165] ? preempt_count_sub+0x50/0x80 [ 25.337597] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.338788] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.339493] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.340240] kthread+0x257/0x310 [ 25.340538] ? __pfx_kthread+0x10/0x10 [ 25.341071] ret_from_fork+0x41/0x80 [ 25.341620] ? __pfx_kthread+0x10/0x10 [ 25.342368] ret_from_fork_asm+0x1a/0x30 [ 25.342775] </TASK> [ 25.343339] [ 25.343540] Allocated by task 188: [ 25.343920] kasan_save_stack+0x3d/0x60 [ 25.344914] kasan_save_track+0x18/0x40 [ 25.345214] kasan_save_alloc_info+0x3b/0x50 [ 25.345719] __kasan_kmalloc+0xb7/0xc0 [ 25.346327] __kmalloc_cache_noprof+0x184/0x410 [ 25.346778] kmalloc_memmove_negative_size+0xad/0x330 [ 25.347244] kunit_try_run_case+0x1b3/0x490 [ 25.347832] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.348537] kthread+0x257/0x310 [ 25.348886] ret_from_fork+0x41/0x80 [ 25.349306] ret_from_fork_asm+0x1a/0x30 [ 25.349589] [ 25.349772] The buggy address belongs to the object at ffff888101a9ed00 [ 25.349772] which belongs to the cache kmalloc-64 of size 64 [ 25.351247] The buggy address is located 4 bytes inside of [ 25.351247] 64-byte region [ffff888101a9ed00, ffff888101a9ed40) [ 25.352772] [ 25.354205] The buggy address belongs to the physical page: [ 25.354850] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101a9e [ 25.356284] flags: 0x200000000000000(node=0|zone=2) [ 25.357547] page_type: f5(slab) [ 25.357843] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 25.358592] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 25.359977] page dumped because: kasan: bad access detected [ 25.360896] [ 25.361191] Memory state around the buggy address: [ 25.361689] ffff888101a9ec00: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 25.362651] ffff888101a9ec80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 25.363306] >ffff888101a9ed00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 25.363860] ^ [ 25.364520] ffff888101a9ed80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.366083] ffff888101a9ee00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.366682] ==================================================================