Date
June 25, 2025, 8:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 26.726830] ================================================================== [ 26.727045] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 26.727122] Read of size 18446744073709551614 at addr fff00000c78b0804 by task kunit_try_catch/192 [ 26.727500] [ 26.727562] CPU: 1 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT [ 26.727715] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.727820] Hardware name: linux,dummy-virt (DT) [ 26.727855] Call trace: [ 26.728068] show_stack+0x20/0x38 (C) [ 26.728403] dump_stack_lvl+0x8c/0xd0 [ 26.728619] print_report+0x118/0x608 [ 26.728826] kasan_report+0xdc/0x128 [ 26.729101] kasan_check_range+0x100/0x1a8 [ 26.729155] __asan_memmove+0x3c/0x98 [ 26.729243] kmalloc_memmove_negative_size+0x154/0x2e0 [ 26.729537] kunit_try_run_case+0x170/0x3f0 [ 26.729628] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.729853] kthread+0x328/0x630 [ 26.729906] ret_from_fork+0x10/0x20 [ 26.729956] [ 26.730044] Allocated by task 192: [ 26.730109] kasan_save_stack+0x3c/0x68 [ 26.730162] kasan_save_track+0x20/0x40 [ 26.730209] kasan_save_alloc_info+0x40/0x58 [ 26.730250] __kasan_kmalloc+0xd4/0xd8 [ 26.730302] __kmalloc_cache_noprof+0x16c/0x3c0 [ 26.730343] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 26.730419] kunit_try_run_case+0x170/0x3f0 [ 26.730469] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 26.730512] kthread+0x328/0x630 [ 26.730545] ret_from_fork+0x10/0x20 [ 26.730582] [ 26.730607] The buggy address belongs to the object at fff00000c78b0800 [ 26.730607] which belongs to the cache kmalloc-64 of size 64 [ 26.730679] The buggy address is located 4 bytes inside of [ 26.730679] 64-byte region [fff00000c78b0800, fff00000c78b0840) [ 26.730738] [ 26.730767] The buggy address belongs to the physical page: [ 26.730800] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078b0 [ 26.730866] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 26.730940] page_type: f5(slab) [ 26.730987] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 26.731052] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 26.731101] page dumped because: kasan: bad access detected [ 26.731134] [ 26.731152] Memory state around the buggy address: [ 26.731214] fff00000c78b0700: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 26.731274] fff00000c78b0780: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 26.731316] >fff00000c78b0800: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 26.731360] ^ [ 26.731434] fff00000c78b0880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.731862] fff00000c78b0900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.731924] ==================================================================
[ 22.045502] ================================================================== [ 22.045995] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x171/0x330 [ 22.047031] Read of size 18446744073709551614 at addr ffff888103958c84 by task kunit_try_catch/209 [ 22.047641] [ 22.047739] CPU: 1 UID: 0 PID: 209 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc3-next-20250625 #1 PREEMPT(voluntary) [ 22.047789] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.047802] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.047833] Call Trace: [ 22.047850] <TASK> [ 22.047871] dump_stack_lvl+0x73/0xb0 [ 22.047926] print_report+0xd1/0x650 [ 22.047978] ? __virt_addr_valid+0x1db/0x2d0 [ 22.048008] ? kmalloc_memmove_negative_size+0x171/0x330 [ 22.048044] ? kasan_complete_mode_report_info+0x2a/0x200 [ 22.048071] ? kmalloc_memmove_negative_size+0x171/0x330 [ 22.048131] kasan_report+0x141/0x180 [ 22.048157] ? kmalloc_memmove_negative_size+0x171/0x330 [ 22.048208] kasan_check_range+0x10c/0x1c0 [ 22.048237] __asan_memmove+0x27/0x70 [ 22.048263] kmalloc_memmove_negative_size+0x171/0x330 [ 22.048289] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 22.048316] ? __schedule+0x10cc/0x2b60 [ 22.048350] ? __pfx_read_tsc+0x10/0x10 [ 22.048373] ? ktime_get_ts64+0x86/0x230 [ 22.048404] kunit_try_run_case+0x1a5/0x480 [ 22.048433] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.048457] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 22.048479] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.048506] ? __kthread_parkme+0x82/0x180 [ 22.048529] ? preempt_count_sub+0x50/0x80 [ 22.048558] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.048584] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.048609] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.048633] kthread+0x337/0x6f0 [ 22.048654] ? trace_preempt_on+0x20/0xc0 [ 22.048680] ? __pfx_kthread+0x10/0x10 [ 22.048703] ? _raw_spin_unlock_irq+0x47/0x80 [ 22.048727] ? calculate_sigpending+0x7b/0xa0 [ 22.048753] ? __pfx_kthread+0x10/0x10 [ 22.048777] ret_from_fork+0x116/0x1d0 [ 22.048797] ? __pfx_kthread+0x10/0x10 [ 22.048820] ret_from_fork_asm+0x1a/0x30 [ 22.048864] </TASK> [ 22.048876] [ 22.061697] Allocated by task 209: [ 22.061872] kasan_save_stack+0x45/0x70 [ 22.062254] kasan_save_track+0x18/0x40 [ 22.062654] kasan_save_alloc_info+0x3b/0x50 [ 22.063143] __kasan_kmalloc+0xb7/0xc0 [ 22.063419] __kmalloc_cache_noprof+0x189/0x420 [ 22.063564] kmalloc_memmove_negative_size+0xac/0x330 [ 22.063715] kunit_try_run_case+0x1a5/0x480 [ 22.063981] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.064526] kthread+0x337/0x6f0 [ 22.064836] ret_from_fork+0x116/0x1d0 [ 22.065268] ret_from_fork_asm+0x1a/0x30 [ 22.065636] [ 22.065807] The buggy address belongs to the object at ffff888103958c80 [ 22.065807] which belongs to the cache kmalloc-64 of size 64 [ 22.067038] The buggy address is located 4 bytes inside of [ 22.067038] 64-byte region [ffff888103958c80, ffff888103958cc0) [ 22.067490] [ 22.067560] The buggy address belongs to the physical page: [ 22.067730] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103958 [ 22.068269] flags: 0x200000000000000(node=0|zone=2) [ 22.068793] page_type: f5(slab) [ 22.069206] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 22.069848] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 22.070743] page dumped because: kasan: bad access detected [ 22.071377] [ 22.071599] Memory state around the buggy address: [ 22.071885] ffff888103958b80: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 22.072377] ffff888103958c00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 22.072595] >ffff888103958c80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 22.072799] ^ [ 22.072917] ffff888103958d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.073263] ffff888103958d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.073565] ==================================================================