Date
Nov. 22, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.923674] ================================================================== [ 33.925305] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 33.926248] Read of size 18446744073709551614 at addr fff00000c6132b84 by task kunit_try_catch/169 [ 33.928183] [ 33.929646] CPU: 0 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 33.931026] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.931601] Hardware name: linux,dummy-virt (DT) [ 33.932202] Call trace: [ 33.932779] show_stack+0x20/0x38 (C) [ 33.933804] dump_stack_lvl+0x8c/0xd0 [ 33.934488] print_report+0x118/0x5e0 [ 33.935143] kasan_report+0xc8/0x118 [ 33.935742] kasan_check_range+0x100/0x1a8 [ 33.936318] __asan_memmove+0x3c/0x98 [ 33.936927] kmalloc_memmove_negative_size+0x154/0x2e0 [ 33.937935] kunit_try_run_case+0x14c/0x3d0 [ 33.938732] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.939998] kthread+0x24c/0x2d0 [ 33.940780] ret_from_fork+0x10/0x20 [ 33.941989] [ 33.942407] Allocated by task 169: [ 33.942983] kasan_save_stack+0x3c/0x68 [ 33.943566] kasan_save_track+0x20/0x40 [ 33.944222] kasan_save_alloc_info+0x40/0x58 [ 33.945468] __kasan_kmalloc+0xd4/0xd8 [ 33.946719] __kmalloc_cache_noprof+0x15c/0x3c8 [ 33.947334] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 33.948076] kunit_try_run_case+0x14c/0x3d0 [ 33.948655] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.950384] kthread+0x24c/0x2d0 [ 33.951111] ret_from_fork+0x10/0x20 [ 33.951712] [ 33.952040] The buggy address belongs to the object at fff00000c6132b80 [ 33.952040] which belongs to the cache kmalloc-64 of size 64 [ 33.954206] The buggy address is located 4 bytes inside of [ 33.954206] 64-byte region [fff00000c6132b80, fff00000c6132bc0) [ 33.955929] [ 33.956418] The buggy address belongs to the physical page: [ 33.957230] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106132 [ 33.958874] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.959770] page_type: f5(slab) [ 33.960353] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 33.962421] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 33.963764] page dumped because: kasan: bad access detected [ 33.964823] [ 33.965710] Memory state around the buggy address: [ 33.966334] fff00000c6132a80: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 33.967391] fff00000c6132b00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 33.968798] >fff00000c6132b80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 33.969701] ^ [ 33.970284] fff00000c6132c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.971930] fff00000c6132c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.972851] ==================================================================
[ 25.336392] ================================================================== [ 25.338076] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x172/0x330 [ 25.338674] Read of size 18446744073709551614 at addr ffff888102a03b04 by task kunit_try_catch/188 [ 25.340071] [ 25.340337] CPU: 1 UID: 0 PID: 188 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 25.341762] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.342471] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.343047] Call Trace: [ 25.343461] <TASK> [ 25.343746] dump_stack_lvl+0x73/0xb0 [ 25.344132] print_report+0xd1/0x640 [ 25.344555] ? __virt_addr_valid+0x1db/0x2d0 [ 25.345190] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.345665] kasan_report+0x102/0x140 [ 25.346618] ? kmalloc_memmove_negative_size+0x172/0x330 [ 25.347061] ? kmalloc_memmove_negative_size+0x172/0x330 [ 25.347726] kasan_check_range+0x10c/0x1c0 [ 25.348595] __asan_memmove+0x27/0x70 [ 25.349362] kmalloc_memmove_negative_size+0x172/0x330 [ 25.350120] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 25.350643] ? __schedule+0xc3e/0x2790 [ 25.351347] ? __pfx_read_tsc+0x10/0x10 [ 25.352451] ? ktime_get_ts64+0x84/0x230 [ 25.352898] kunit_try_run_case+0x1b3/0x490 [ 25.353299] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.353739] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 25.354318] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.354718] ? __kthread_parkme+0x82/0x160 [ 25.355334] ? preempt_count_sub+0x50/0x80 [ 25.355840] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.356608] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.357124] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.357731] kthread+0x257/0x310 [ 25.358141] ? __pfx_kthread+0x10/0x10 [ 25.359227] ret_from_fork+0x41/0x80 [ 25.359876] ? __pfx_kthread+0x10/0x10 [ 25.361128] ret_from_fork_asm+0x1a/0x30 [ 25.361547] </TASK> [ 25.361944] [ 25.362249] Allocated by task 188: [ 25.362769] kasan_save_stack+0x3d/0x60 [ 25.363188] kasan_save_track+0x18/0x40 [ 25.364331] kasan_save_alloc_info+0x3b/0x50 [ 25.364719] __kasan_kmalloc+0xb7/0xc0 [ 25.365338] __kmalloc_cache_noprof+0x184/0x410 [ 25.365994] kmalloc_memmove_negative_size+0xad/0x330 [ 25.366659] kunit_try_run_case+0x1b3/0x490 [ 25.366986] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.367583] kthread+0x257/0x310 [ 25.368247] ret_from_fork+0x41/0x80 [ 25.368634] ret_from_fork_asm+0x1a/0x30 [ 25.369398] [ 25.369622] The buggy address belongs to the object at ffff888102a03b00 [ 25.369622] which belongs to the cache kmalloc-64 of size 64 [ 25.371428] The buggy address is located 4 bytes inside of [ 25.371428] 64-byte region [ffff888102a03b00, ffff888102a03b40) [ 25.372547] [ 25.372857] The buggy address belongs to the physical page: [ 25.373421] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a03 [ 25.374321] flags: 0x200000000000000(node=0|zone=2) [ 25.374997] page_type: f5(slab) [ 25.375297] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 25.376241] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 25.376857] page dumped because: kasan: bad access detected [ 25.377932] [ 25.378101] Memory state around the buggy address: [ 25.378375] ffff888102a03a00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 25.379062] ffff888102a03a80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 25.380138] >ffff888102a03b00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 25.380513] ^ [ 25.380734] ffff888102a03b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.381667] ffff888102a03c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.382759] ==================================================================