Date
Dec. 9, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.489809] ================================================================== [ 24.491235] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x154/0x2e8 [ 24.492285] Read of size 64 at addr fff00000c6487184 by task kunit_try_catch/170 [ 24.493285] [ 24.493615] CPU: 0 UID: 0 PID: 170 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 24.495656] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.496207] Hardware name: linux,dummy-virt (DT) [ 24.497250] Call trace: [ 24.497828] show_stack+0x20/0x38 (C) [ 24.498488] dump_stack_lvl+0x8c/0xd0 [ 24.499270] print_report+0x118/0x5e0 [ 24.499978] kasan_report+0xc8/0x118 [ 24.500784] kasan_check_range+0x100/0x1a8 [ 24.501334] __asan_memmove+0x3c/0x98 [ 24.501909] kmalloc_memmove_invalid_size+0x154/0x2e8 [ 24.502680] kunit_try_run_case+0x14c/0x3d0 [ 24.503669] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.504692] kthread+0x24c/0x2d0 [ 24.505276] ret_from_fork+0x10/0x20 [ 24.505887] [ 24.506250] Allocated by task 170: [ 24.506797] kasan_save_stack+0x3c/0x68 [ 24.507608] kasan_save_track+0x20/0x40 [ 24.508654] kasan_save_alloc_info+0x40/0x58 [ 24.509274] __kasan_kmalloc+0xd4/0xd8 [ 24.509911] __kmalloc_cache_noprof+0x15c/0x3c0 [ 24.510621] kmalloc_memmove_invalid_size+0xb0/0x2e8 [ 24.511313] kunit_try_run_case+0x14c/0x3d0 [ 24.512218] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.512981] kthread+0x24c/0x2d0 [ 24.513549] ret_from_fork+0x10/0x20 [ 24.514128] [ 24.514494] The buggy address belongs to the object at fff00000c6487180 [ 24.514494] which belongs to the cache kmalloc-64 of size 64 [ 24.516029] The buggy address is located 4 bytes inside of [ 24.516029] allocated 64-byte region [fff00000c6487180, fff00000c64871c0) [ 24.517336] [ 24.517758] The buggy address belongs to the physical page: [ 24.518534] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106487 [ 24.519503] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.520493] page_type: f5(slab) [ 24.521011] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 24.521612] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 24.522227] page dumped because: kasan: bad access detected [ 24.524010] [ 24.524460] Memory state around the buggy address: [ 24.525255] fff00000c6487080: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 24.526332] fff00000c6487100: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.527101] >fff00000c6487180: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 24.527811] ^ [ 24.528866] fff00000c6487200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.529951] fff00000c6487280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.531104] ==================================================================
[ 24.456672] ================================================================== [ 24.457729] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x170/0x330 [ 24.458640] Read of size 64 at addr ffff888102402a84 by task kunit_try_catch/189 [ 24.459967] [ 24.460443] CPU: 1 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 24.461953] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.462178] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.462924] Call Trace: [ 24.463371] <TASK> [ 24.464179] dump_stack_lvl+0x73/0xb0 [ 24.465035] print_report+0xd1/0x640 [ 24.465575] ? __virt_addr_valid+0x1db/0x2d0 [ 24.465907] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.466906] kasan_report+0x102/0x140 [ 24.467215] ? kmalloc_memmove_invalid_size+0x170/0x330 [ 24.467883] ? kmalloc_memmove_invalid_size+0x170/0x330 [ 24.468745] kasan_check_range+0x10c/0x1c0 [ 24.469621] __asan_memmove+0x27/0x70 [ 24.470355] kmalloc_memmove_invalid_size+0x170/0x330 [ 24.470953] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 24.471561] ? __schedule+0xc70/0x27e0 [ 24.472080] ? __pfx_read_tsc+0x10/0x10 [ 24.472516] ? ktime_get_ts64+0x86/0x230 [ 24.472951] kunit_try_run_case+0x1b3/0x490 [ 24.473645] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.474039] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 24.475714] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.477021] ? __kthread_parkme+0x82/0x160 [ 24.477478] ? preempt_count_sub+0x50/0x80 [ 24.478399] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.479018] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.480026] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.480965] kthread+0x257/0x310 [ 24.481765] ? __pfx_kthread+0x10/0x10 [ 24.482511] ret_from_fork+0x41/0x80 [ 24.483053] ? __pfx_kthread+0x10/0x10 [ 24.483883] ret_from_fork_asm+0x1a/0x30 [ 24.484980] </TASK> [ 24.485446] [ 24.485951] Allocated by task 189: [ 24.487012] kasan_save_stack+0x3d/0x60 [ 24.488018] kasan_save_track+0x18/0x40 [ 24.488761] kasan_save_alloc_info+0x3b/0x50 [ 24.489162] __kasan_kmalloc+0xb7/0xc0 [ 24.489643] __kmalloc_cache_noprof+0x184/0x410 [ 24.490580] kmalloc_memmove_invalid_size+0xad/0x330 [ 24.491564] kunit_try_run_case+0x1b3/0x490 [ 24.491958] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.493095] kthread+0x257/0x310 [ 24.493413] ret_from_fork+0x41/0x80 [ 24.494122] ret_from_fork_asm+0x1a/0x30 [ 24.494523] [ 24.494786] The buggy address belongs to the object at ffff888102402a80 [ 24.494786] which belongs to the cache kmalloc-64 of size 64 [ 24.496490] The buggy address is located 4 bytes inside of [ 24.496490] allocated 64-byte region [ffff888102402a80, ffff888102402ac0) [ 24.498149] [ 24.498320] The buggy address belongs to the physical page: [ 24.500047] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102402 [ 24.500974] flags: 0x200000000000000(node=0|zone=2) [ 24.501693] page_type: f5(slab) [ 24.502440] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 24.503620] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 24.504473] page dumped because: kasan: bad access detected [ 24.505726] [ 24.505942] Memory state around the buggy address: [ 24.506474] ffff888102402980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.507828] ffff888102402a00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.508582] >ffff888102402a80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 24.509259] ^ [ 24.510666] ffff888102402b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.511484] ffff888102402b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.512526] ==================================================================