Date
Dec. 9, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 24.441590] ================================================================== [ 24.442578] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 24.444277] Read of size 18446744073709551614 at addr fff00000c125ad04 by task kunit_try_catch/168 [ 24.445239] [ 24.445602] CPU: 1 UID: 0 PID: 168 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 24.447580] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.447970] Hardware name: linux,dummy-virt (DT) [ 24.448481] Call trace: [ 24.448910] show_stack+0x20/0x38 (C) [ 24.449479] dump_stack_lvl+0x8c/0xd0 [ 24.450277] print_report+0x118/0x5e0 [ 24.451014] kasan_report+0xc8/0x118 [ 24.451603] kasan_check_range+0x100/0x1a8 [ 24.452216] __asan_memmove+0x3c/0x98 [ 24.452468] kmalloc_memmove_negative_size+0x154/0x2e0 [ 24.452868] kunit_try_run_case+0x14c/0x3d0 [ 24.453683] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.454455] kthread+0x24c/0x2d0 [ 24.455015] ret_from_fork+0x10/0x20 [ 24.455625] [ 24.456029] Allocated by task 168: [ 24.456534] kasan_save_stack+0x3c/0x68 [ 24.457155] kasan_save_track+0x20/0x40 [ 24.457788] kasan_save_alloc_info+0x40/0x58 [ 24.458442] __kasan_kmalloc+0xd4/0xd8 [ 24.459221] __kmalloc_cache_noprof+0x15c/0x3c0 [ 24.459864] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 24.460485] kunit_try_run_case+0x14c/0x3d0 [ 24.461127] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.461781] kthread+0x24c/0x2d0 [ 24.462371] ret_from_fork+0x10/0x20 [ 24.462963] [ 24.463477] The buggy address belongs to the object at fff00000c125ad00 [ 24.463477] which belongs to the cache kmalloc-64 of size 64 [ 24.464810] The buggy address is located 4 bytes inside of [ 24.464810] 64-byte region [fff00000c125ad00, fff00000c125ad40) [ 24.466013] [ 24.466412] The buggy address belongs to the physical page: [ 24.467385] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10125a [ 24.468338] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 24.469180] page_type: f5(slab) [ 24.469773] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 24.470613] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 24.471719] page dumped because: kasan: bad access detected [ 24.472389] [ 24.472798] Memory state around the buggy address: [ 24.473406] fff00000c125ac00: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 24.474197] fff00000c125ac80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.475181] >fff00000c125ad00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 24.476534] ^ [ 24.476930] fff00000c125ad80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.477488] fff00000c125ae00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.478188] ==================================================================
[ 24.400829] ================================================================== [ 24.401931] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x172/0x330 [ 24.402652] Read of size 18446744073709551614 at addr ffff888102402a04 by task kunit_try_catch/187 [ 24.404153] [ 24.404892] CPU: 1 UID: 0 PID: 187 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 24.405955] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.406620] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.407426] Call Trace: [ 24.407722] <TASK> [ 24.407997] dump_stack_lvl+0x73/0xb0 [ 24.408700] print_report+0xd1/0x640 [ 24.409044] ? __virt_addr_valid+0x1db/0x2d0 [ 24.409405] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.410361] kasan_report+0x102/0x140 [ 24.410755] ? kmalloc_memmove_negative_size+0x172/0x330 [ 24.411886] ? kmalloc_memmove_negative_size+0x172/0x330 [ 24.412673] kasan_check_range+0x10c/0x1c0 [ 24.413446] __asan_memmove+0x27/0x70 [ 24.414030] kmalloc_memmove_negative_size+0x172/0x330 [ 24.414862] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 24.415804] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 24.417027] kunit_try_run_case+0x1b3/0x490 [ 24.417704] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.418137] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 24.419064] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.419797] ? __kthread_parkme+0x82/0x160 [ 24.420834] ? preempt_count_sub+0x50/0x80 [ 24.421480] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.422325] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.423100] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.423641] kthread+0x257/0x310 [ 24.424103] ? __pfx_kthread+0x10/0x10 [ 24.424639] ret_from_fork+0x41/0x80 [ 24.425384] ? __pfx_kthread+0x10/0x10 [ 24.425752] ret_from_fork_asm+0x1a/0x30 [ 24.426243] </TASK> [ 24.426673] [ 24.426832] Allocated by task 187: [ 24.427717] kasan_save_stack+0x3d/0x60 [ 24.428078] kasan_save_track+0x18/0x40 [ 24.429006] kasan_save_alloc_info+0x3b/0x50 [ 24.429575] __kasan_kmalloc+0xb7/0xc0 [ 24.430066] __kmalloc_cache_noprof+0x184/0x410 [ 24.430961] kmalloc_memmove_negative_size+0xad/0x330 [ 24.431543] kunit_try_run_case+0x1b3/0x490 [ 24.432266] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.432923] kthread+0x257/0x310 [ 24.433564] ret_from_fork+0x41/0x80 [ 24.434004] ret_from_fork_asm+0x1a/0x30 [ 24.434675] [ 24.435202] The buggy address belongs to the object at ffff888102402a00 [ 24.435202] which belongs to the cache kmalloc-64 of size 64 [ 24.436317] The buggy address is located 4 bytes inside of [ 24.436317] 64-byte region [ffff888102402a00, ffff888102402a40) [ 24.437925] [ 24.438542] The buggy address belongs to the physical page: [ 24.439067] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102402 [ 24.440126] flags: 0x200000000000000(node=0|zone=2) [ 24.441000] page_type: f5(slab) [ 24.441280] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 24.442425] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 24.443111] page dumped because: kasan: bad access detected [ 24.443910] [ 24.444095] Memory state around the buggy address: [ 24.445101] ffff888102402900: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 24.445965] ffff888102402980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 24.446696] >ffff888102402a00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 24.447622] ^ [ 24.448115] ffff888102402a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.449445] ffff888102402b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.450191] ==================================================================