Date
May 12, 2025, 6:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.842342] ================================================================== [ 18.843188] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 18.843658] Read of size 18446744073709551614 at addr fff00000c1eecc04 by task kunit_try_catch/169 [ 18.844315] [ 18.844663] CPU: 0 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.14.7-rc1 #1 [ 18.844887] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.844943] Hardware name: linux,dummy-virt (DT) [ 18.845017] Call trace: [ 18.845072] show_stack+0x20/0x38 (C) [ 18.845199] dump_stack_lvl+0x8c/0xd0 [ 18.845312] print_report+0x118/0x608 [ 18.845412] kasan_report+0xdc/0x128 [ 18.845516] kasan_check_range+0x100/0x1a8 [ 18.845664] __asan_memmove+0x3c/0x98 [ 18.845771] kmalloc_memmove_negative_size+0x154/0x2e0 [ 18.845896] kunit_try_run_case+0x170/0x3f0 [ 18.846014] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.846089] kthread+0x318/0x620 [ 18.846144] ret_from_fork+0x10/0x20 [ 18.846201] [ 18.852334] Allocated by task 169: [ 18.852922] kasan_save_stack+0x3c/0x68 [ 18.853482] kasan_save_track+0x20/0x40 [ 18.854041] kasan_save_alloc_info+0x40/0x58 [ 18.854783] __kasan_kmalloc+0xd4/0xd8 [ 18.855383] __kmalloc_cache_noprof+0x15c/0x3c0 [ 18.855909] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 18.856467] kunit_try_run_case+0x170/0x3f0 [ 18.856987] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.857651] kthread+0x318/0x620 [ 18.858145] ret_from_fork+0x10/0x20 [ 18.858667] [ 18.858902] The buggy address belongs to the object at fff00000c1eecc00 [ 18.858902] which belongs to the cache kmalloc-64 of size 64 [ 18.859706] The buggy address is located 4 bytes inside of [ 18.859706] 64-byte region [fff00000c1eecc00, fff00000c1eecc40) [ 18.860385] [ 18.860578] The buggy address belongs to the physical page: [ 18.861509] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101eec [ 18.862448] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.862996] page_type: f5(slab) [ 18.863325] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 18.863908] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 18.864415] page dumped because: kasan: bad access detected [ 18.864905] [ 18.865171] Memory state around the buggy address: [ 18.865753] fff00000c1eecb00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.866555] fff00000c1eecb80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.867263] >fff00000c1eecc00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 18.867958] ^ [ 18.868696] fff00000c1eecc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.869307] fff00000c1eecd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.869958] ==================================================================
[ 12.626490] ================================================================== [ 12.628018] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x172/0x330 [ 12.628859] Read of size 18446744073709551614 at addr ffff888102ad8304 by task kunit_try_catch/188 [ 12.629541] [ 12.629643] CPU: 0 UID: 0 PID: 188 Comm: kunit_try_catch Tainted: G B N 6.14.7-rc1 #1 [ 12.629694] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.629707] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.629730] Call Trace: [ 12.629752] <TASK> [ 12.629776] dump_stack_lvl+0x73/0xb0 [ 12.629811] print_report+0xd1/0x650 [ 12.629833] ? __virt_addr_valid+0x1db/0x2d0 [ 12.629871] ? kmalloc_memmove_negative_size+0x172/0x330 [ 12.629894] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.629920] ? kmalloc_memmove_negative_size+0x172/0x330 [ 12.629967] kasan_report+0x140/0x180 [ 12.629989] ? kmalloc_memmove_negative_size+0x172/0x330 [ 12.630070] kasan_check_range+0x10c/0x1c0 [ 12.630093] __asan_memmove+0x27/0x70 [ 12.630163] kmalloc_memmove_negative_size+0x172/0x330 [ 12.630186] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 12.630210] ? __schedule+0xce8/0x2840 [ 12.630237] ? __pfx_read_tsc+0x10/0x10 [ 12.630290] ? ktime_get_ts64+0x86/0x230 [ 12.630318] kunit_try_run_case+0x1a6/0x480 [ 12.630343] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.630363] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 12.630384] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.630409] ? __kthread_parkme+0x82/0x160 [ 12.630431] ? preempt_count_sub+0x50/0x80 [ 12.630457] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.630478] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.630503] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.630528] kthread+0x324/0x6e0 [ 12.630549] ? trace_preempt_on+0x20/0xc0 [ 12.630573] ? __pfx_kthread+0x10/0x10 [ 12.630594] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.630617] ? calculate_sigpending+0x7b/0xa0 [ 12.630639] ? __pfx_kthread+0x10/0x10 [ 12.630661] ret_from_fork+0x41/0x80 [ 12.630679] ? __pfx_kthread+0x10/0x10 [ 12.630700] ret_from_fork_asm+0x1a/0x30 [ 12.630732] </TASK> [ 12.630745] [ 12.644649] Allocated by task 188: [ 12.644820] kasan_save_stack+0x45/0x70 [ 12.645031] kasan_save_track+0x18/0x40 [ 12.645236] kasan_save_alloc_info+0x3b/0x50 [ 12.645400] __kasan_kmalloc+0xb7/0xc0 [ 12.645611] __kmalloc_cache_noprof+0x18a/0x420 [ 12.645831] kmalloc_memmove_negative_size+0xad/0x330 [ 12.646026] kunit_try_run_case+0x1a6/0x480 [ 12.646309] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.646661] kthread+0x324/0x6e0 [ 12.646792] ret_from_fork+0x41/0x80 [ 12.646983] ret_from_fork_asm+0x1a/0x30 [ 12.647442] [ 12.647543] The buggy address belongs to the object at ffff888102ad8300 [ 12.647543] which belongs to the cache kmalloc-64 of size 64 [ 12.647987] The buggy address is located 4 bytes inside of [ 12.647987] 64-byte region [ffff888102ad8300, ffff888102ad8340) [ 12.648524] [ 12.648636] The buggy address belongs to the physical page: [ 12.648882] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ad8 [ 12.649296] flags: 0x200000000000000(node=0|zone=2) [ 12.649494] page_type: f5(slab) [ 12.649693] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.650032] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 12.650678] page dumped because: kasan: bad access detected [ 12.650945] [ 12.651458] Memory state around the buggy address: [ 12.651696] ffff888102ad8200: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.652190] ffff888102ad8280: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.652744] >ffff888102ad8300: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.653398] ^ [ 12.653724] ffff888102ad8380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.654523] ffff888102ad8400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.654917] ==================================================================