Date
June 2, 2025, 2:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.137370] ================================================================== [ 20.138085] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x15c/0x2f8 [ 20.138901] Read of size 64 at addr fff00000c6491804 by task kunit_try_catch/169 [ 20.140489] [ 20.140837] CPU: 1 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 20.141040] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.141108] Hardware name: linux,dummy-virt (DT) [ 20.141188] Call trace: [ 20.141257] dump_backtrace+0x9c/0x128 [ 20.141388] show_stack+0x20/0x38 [ 20.141458] dump_stack_lvl+0x8c/0xd0 [ 20.141556] print_report+0x118/0x5f0 [ 20.141629] kasan_report+0xdc/0x128 [ 20.141691] kasan_check_range+0x100/0x1a8 [ 20.141749] __asan_memmove+0x3c/0x98 [ 20.141794] kmalloc_memmove_invalid_size+0x15c/0x2f8 [ 20.141843] kunit_try_run_case+0x170/0x3f0 [ 20.141888] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.141936] kthread+0x24c/0x2d0 [ 20.141978] ret_from_fork+0x10/0x20 [ 20.142026] [ 20.146637] Allocated by task 169: [ 20.147051] kasan_save_stack+0x3c/0x68 [ 20.147521] kasan_save_track+0x20/0x40 [ 20.148286] kasan_save_alloc_info+0x40/0x58 [ 20.148849] __kasan_kmalloc+0xd4/0xd8 [ 20.149186] __kmalloc_cache_noprof+0x154/0x320 [ 20.149689] kmalloc_memmove_invalid_size+0xb8/0x2f8 [ 20.150246] kunit_try_run_case+0x170/0x3f0 [ 20.150734] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.151658] kthread+0x24c/0x2d0 [ 20.151985] ret_from_fork+0x10/0x20 [ 20.152220] [ 20.152380] The buggy address belongs to the object at fff00000c6491800 [ 20.152380] which belongs to the cache kmalloc-64 of size 64 [ 20.154090] The buggy address is located 4 bytes inside of [ 20.154090] allocated 64-byte region [fff00000c6491800, fff00000c6491840) [ 20.154960] [ 20.155563] The buggy address belongs to the physical page: [ 20.155968] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106491 [ 20.156645] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.157255] page_type: f5(slab) [ 20.157602] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 20.158169] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 20.158797] page dumped because: kasan: bad access detected [ 20.159383] [ 20.159560] Memory state around the buggy address: [ 20.160045] fff00000c6491700: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 20.160427] fff00000c6491780: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 20.161986] >fff00000c6491800: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 20.163034] ^ [ 20.163818] fff00000c6491880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.164477] fff00000c6491900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.165033] ==================================================================
[ 12.293010] ================================================================== [ 12.293525] BUG: KASAN: slab-out-of-bounds in kmalloc_memmove_invalid_size+0x170/0x330 [ 12.294064] Read of size 64 at addr ffff888102978d84 by task kunit_try_catch/187 [ 12.294525] [ 12.294918] CPU: 1 UID: 0 PID: 187 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 12.295010] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.295030] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.295062] Call Trace: [ 12.295087] <TASK> [ 12.295115] dump_stack_lvl+0x73/0xb0 [ 12.295192] print_report+0xd1/0x640 [ 12.295383] ? __virt_addr_valid+0x1db/0x2d0 [ 12.295424] ? kmalloc_memmove_invalid_size+0x170/0x330 [ 12.295460] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.295497] ? kmalloc_memmove_invalid_size+0x170/0x330 [ 12.295560] kasan_report+0x140/0x180 [ 12.295599] ? kmalloc_memmove_invalid_size+0x170/0x330 [ 12.295644] kasan_check_range+0x10c/0x1c0 [ 12.295698] __asan_memmove+0x27/0x70 [ 12.295733] kmalloc_memmove_invalid_size+0x170/0x330 [ 12.295770] ? __pfx_kmalloc_memmove_invalid_size+0x10/0x10 [ 12.295808] ? __schedule+0xc49/0x27a0 [ 12.295865] ? __pfx_read_tsc+0x10/0x10 [ 12.295901] ? ktime_get_ts64+0x84/0x230 [ 12.295950] kunit_try_run_case+0x1a6/0x480 [ 12.295988] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.296022] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 12.296074] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.296115] ? __kthread_parkme+0x82/0x160 [ 12.296264] ? preempt_count_sub+0x50/0x80 [ 12.296307] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.296327] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.296350] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.296374] kthread+0x257/0x310 [ 12.296391] ? __pfx_kthread+0x10/0x10 [ 12.296408] ret_from_fork+0x41/0x80 [ 12.296426] ? __pfx_kthread+0x10/0x10 [ 12.296442] ret_from_fork_asm+0x1a/0x30 [ 12.296470] </TASK> [ 12.296483] [ 12.306669] Allocated by task 187: [ 12.306849] kasan_save_stack+0x45/0x70 [ 12.307051] kasan_save_track+0x18/0x40 [ 12.307505] kasan_save_alloc_info+0x3b/0x50 [ 12.307816] __kasan_kmalloc+0xb7/0xc0 [ 12.308099] __kmalloc_cache_noprof+0x168/0x350 [ 12.308605] kmalloc_memmove_invalid_size+0xad/0x330 [ 12.308968] kunit_try_run_case+0x1a6/0x480 [ 12.309237] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.309853] kthread+0x257/0x310 [ 12.310326] ret_from_fork+0x41/0x80 [ 12.310770] ret_from_fork_asm+0x1a/0x30 [ 12.310944] [ 12.311038] The buggy address belongs to the object at ffff888102978d80 [ 12.311038] which belongs to the cache kmalloc-64 of size 64 [ 12.311768] The buggy address is located 4 bytes inside of [ 12.311768] allocated 64-byte region [ffff888102978d80, ffff888102978dc0) [ 12.313051] [ 12.313505] The buggy address belongs to the physical page: [ 12.313751] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102978 [ 12.314378] flags: 0x200000000000000(node=0|zone=2) [ 12.314839] page_type: f5(slab) [ 12.315061] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 12.315797] raw: 0000000000000000 0000000080200020 00000001f5000000 0000000000000000 [ 12.316177] page dumped because: kasan: bad access detected [ 12.316552] [ 12.316719] Memory state around the buggy address: [ 12.316975] ffff888102978c80: 00 00 00 00 00 01 fc fc fc fc fc fc fc fc fc fc [ 12.317313] ffff888102978d00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 12.317744] >ffff888102978d80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 12.318229] ^ [ 12.318547] ffff888102978e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.319401] ffff888102978e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.319977] ==================================================================