Date
Nov. 20, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 36.937136] ================================================================== [ 36.938253] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x154/0x2e0 [ 36.939159] Read of size 18446744073709551614 at addr fff00000c5bc9e04 by task kunit_try_catch/169 [ 36.940333] [ 36.940748] CPU: 1 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 36.942922] Tainted: [B]=BAD_PAGE, [N]=TEST [ 36.943517] Hardware name: linux,dummy-virt (DT) [ 36.944081] Call trace: [ 36.944564] show_stack+0x20/0x38 (C) [ 36.945148] dump_stack_lvl+0x8c/0xd0 [ 36.946109] print_report+0x118/0x5e0 [ 36.946758] kasan_report+0xc8/0x118 [ 36.947285] kasan_check_range+0x100/0x1a8 [ 36.947974] __asan_memmove+0x3c/0x98 [ 36.948589] kmalloc_memmove_negative_size+0x154/0x2e0 [ 36.949310] kunit_try_run_case+0x14c/0x3d0 [ 36.949950] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 36.950936] kthread+0x24c/0x2d0 [ 36.951489] ret_from_fork+0x10/0x20 [ 36.952094] [ 36.952436] Allocated by task 169: [ 36.953006] kasan_save_stack+0x3c/0x68 [ 36.953887] kasan_save_track+0x20/0x40 [ 36.954412] kasan_save_alloc_info+0x40/0x58 [ 36.955004] __kasan_kmalloc+0xd4/0xd8 [ 36.955521] __kmalloc_cache_noprof+0x15c/0x3c8 [ 36.956146] kmalloc_memmove_negative_size+0xb0/0x2e0 [ 36.956807] kunit_try_run_case+0x14c/0x3d0 [ 36.957775] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 36.958557] kthread+0x24c/0x2d0 [ 36.959248] ret_from_fork+0x10/0x20 [ 36.959613] [ 36.959949] The buggy address belongs to the object at fff00000c5bc9e00 [ 36.959949] which belongs to the cache kmalloc-64 of size 64 [ 36.961158] The buggy address is located 4 bytes inside of [ 36.961158] 64-byte region [fff00000c5bc9e00, fff00000c5bc9e40) [ 36.962691] [ 36.963037] The buggy address belongs to the physical page: [ 36.963719] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105bc9 [ 36.964519] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 36.965296] page_type: f5(slab) [ 36.965773] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 36.967028] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 36.967888] page dumped because: kasan: bad access detected [ 36.968488] [ 36.968819] Memory state around the buggy address: [ 36.969667] fff00000c5bc9d00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 36.970389] fff00000c5bc9d80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 36.971146] >fff00000c5bc9e00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 36.972079] ^ [ 36.972529] fff00000c5bc9e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 36.973659] fff00000c5bc9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 36.974368] ==================================================================
[ 28.409732] ================================================================== [ 28.410735] BUG: KASAN: out-of-bounds in kmalloc_memmove_negative_size+0x172/0x330 [ 28.411398] Read of size 18446744073709551614 at addr ffff8881029dfd04 by task kunit_try_catch/187 [ 28.413829] [ 28.414398] CPU: 1 UID: 0 PID: 187 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241120 #1 [ 28.415908] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.416957] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 28.418200] Call Trace: [ 28.418797] <TASK> [ 28.419446] dump_stack_lvl+0x73/0xb0 [ 28.419964] print_report+0xd1/0x640 [ 28.420664] ? __virt_addr_valid+0x1db/0x2d0 [ 28.421542] ? kasan_complete_mode_report_info+0x2a/0x200 [ 28.422436] kasan_report+0x102/0x140 [ 28.423002] ? kmalloc_memmove_negative_size+0x172/0x330 [ 28.424009] ? kmalloc_memmove_negative_size+0x172/0x330 [ 28.424764] kasan_check_range+0x10c/0x1c0 [ 28.425080] __asan_memmove+0x27/0x70 [ 28.426150] kmalloc_memmove_negative_size+0x172/0x330 [ 28.427028] ? __pfx_kmalloc_memmove_negative_size+0x10/0x10 [ 28.428127] ? __schedule+0xc3e/0x2790 [ 28.428998] ? __pfx_read_tsc+0x10/0x10 [ 28.429443] ? ktime_get_ts64+0x84/0x230 [ 28.429908] kunit_try_run_case+0x1b3/0x490 [ 28.430914] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.431508] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 28.432063] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 28.432502] ? __kthread_parkme+0x82/0x160 [ 28.432983] ? preempt_count_sub+0x50/0x80 [ 28.433920] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.434420] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 28.435357] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.435936] kthread+0x257/0x310 [ 28.436667] ? __pfx_kthread+0x10/0x10 [ 28.437084] ret_from_fork+0x41/0x80 [ 28.437543] ? __pfx_kthread+0x10/0x10 [ 28.437972] ret_from_fork_asm+0x1a/0x30 [ 28.438774] </TASK> [ 28.439140] [ 28.439487] Allocated by task 187: [ 28.439936] kasan_save_stack+0x3d/0x60 [ 28.440374] kasan_save_track+0x18/0x40 [ 28.440820] kasan_save_alloc_info+0x3b/0x50 [ 28.441457] __kasan_kmalloc+0xb7/0xc0 [ 28.442117] __kmalloc_cache_noprof+0x184/0x410 [ 28.442444] kmalloc_memmove_negative_size+0xad/0x330 [ 28.443638] kunit_try_run_case+0x1b3/0x490 [ 28.444327] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.445053] kthread+0x257/0x310 [ 28.445499] ret_from_fork+0x41/0x80 [ 28.445919] ret_from_fork_asm+0x1a/0x30 [ 28.446377] [ 28.446940] The buggy address belongs to the object at ffff8881029dfd00 [ 28.446940] which belongs to the cache kmalloc-64 of size 64 [ 28.447977] The buggy address is located 4 bytes inside of [ 28.447977] 64-byte region [ffff8881029dfd00, ffff8881029dfd40) [ 28.449403] [ 28.449672] The buggy address belongs to the physical page: [ 28.450132] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029df [ 28.451054] flags: 0x200000000000000(node=0|zone=2) [ 28.451369] page_type: f5(slab) [ 28.451845] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 28.453015] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 28.454151] page dumped because: kasan: bad access detected [ 28.454858] [ 28.455012] Memory state around the buggy address: [ 28.455542] ffff8881029dfc00: 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc fc [ 28.456527] ffff8881029dfc80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 28.457488] >ffff8881029dfd00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 28.458445] ^ [ 28.458919] ffff8881029dfd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.459591] ffff8881029dfe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.460637] ==================================================================