Date
June 2, 2025, 2:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.962025] ================================================================== [ 20.962812] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x184/0x318 [ 20.963694] Read of size 1 at addr fff00000c5a6fc80 by task kunit_try_catch/202 [ 20.964531] [ 20.964735] CPU: 0 UID: 0 PID: 202 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 20.964857] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.964892] Hardware name: linux,dummy-virt (DT) [ 20.964931] Call trace: [ 20.964962] dump_backtrace+0x9c/0x128 [ 20.965023] show_stack+0x20/0x38 [ 20.965080] dump_stack_lvl+0x8c/0xd0 [ 20.965150] print_report+0x118/0x5f0 [ 20.965197] kasan_report+0xdc/0x128 [ 20.965251] __kasan_check_byte+0x54/0x70 [ 20.965299] kmem_cache_destroy+0x34/0x218 [ 20.965345] kmem_cache_double_destroy+0x184/0x318 [ 20.965410] kunit_try_run_case+0x170/0x3f0 [ 20.965476] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.965563] kthread+0x24c/0x2d0 [ 20.965609] ret_from_fork+0x10/0x20 [ 20.965657] [ 20.969375] Allocated by task 202: [ 20.969580] kasan_save_stack+0x3c/0x68 [ 20.969811] kasan_save_track+0x20/0x40 [ 20.970035] kasan_save_alloc_info+0x40/0x58 [ 20.970329] __kasan_slab_alloc+0xa8/0xb0 [ 20.970929] kmem_cache_alloc_noprof+0xf8/0x300 [ 20.972549] __kmem_cache_create_args+0x19c/0x2c8 [ 20.972994] kmem_cache_double_destroy+0xd0/0x318 [ 20.973421] kunit_try_run_case+0x170/0x3f0 [ 20.973660] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.974121] kthread+0x24c/0x2d0 [ 20.974334] ret_from_fork+0x10/0x20 [ 20.974690] [ 20.974879] Freed by task 202: [ 20.975420] kasan_save_stack+0x3c/0x68 [ 20.975791] kasan_save_track+0x20/0x40 [ 20.976073] kasan_save_free_info+0x4c/0x78 [ 20.976475] __kasan_slab_free+0x6c/0x98 [ 20.976801] kmem_cache_free+0x118/0x460 [ 20.977184] slab_kmem_cache_release+0x38/0x50 [ 20.977526] kmem_cache_release+0x1c/0x30 [ 20.977720] kobject_put+0x17c/0x420 [ 20.978116] sysfs_slab_release+0x1c/0x30 [ 20.978347] kmem_cache_destroy+0x118/0x218 [ 20.978764] kmem_cache_double_destroy+0x130/0x318 [ 20.979039] kunit_try_run_case+0x170/0x3f0 [ 20.979753] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.980214] kthread+0x24c/0x2d0 [ 20.980424] ret_from_fork+0x10/0x20 [ 20.980776] [ 20.981068] The buggy address belongs to the object at fff00000c5a6fc80 [ 20.981068] which belongs to the cache kmem_cache of size 208 [ 20.981760] The buggy address is located 0 bytes inside of [ 20.981760] freed 208-byte region [fff00000c5a6fc80, fff00000c5a6fd50) [ 20.982449] [ 20.982617] The buggy address belongs to the physical page: [ 20.982818] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a6f [ 20.983653] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.983946] page_type: f5(slab) [ 20.984457] raw: 0bfffe0000000000 fff00000c0001000 dead000000000122 0000000000000000 [ 20.984885] raw: 0000000000000000 00000000800c000c 00000001f5000000 0000000000000000 [ 20.985363] page dumped because: kasan: bad access detected [ 20.985744] [ 20.985848] Memory state around the buggy address: [ 20.986154] fff00000c5a6fb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.986607] fff00000c5a6fc00: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.986949] >fff00000c5a6fc80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 20.987722] ^ [ 20.987923] fff00000c5a6fd00: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 20.988795] fff00000c5a6fd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.989047] ==================================================================
[ 12.953804] ================================================================== [ 12.954255] BUG: KASAN: slab-use-after-free in kmem_cache_double_destroy+0x1bd/0x380 [ 12.954795] Read of size 1 at addr ffff888101ad0280 by task kunit_try_catch/220 [ 12.955026] [ 12.955518] CPU: 1 UID: 0 PID: 220 Comm: kunit_try_catch Tainted: G B N 6.12.32-rc1 #1 [ 12.955631] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.955666] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.955708] Call Trace: [ 12.955735] <TASK> [ 12.955768] dump_stack_lvl+0x73/0xb0 [ 12.955825] print_report+0xd1/0x640 [ 12.955877] ? __virt_addr_valid+0x1db/0x2d0 [ 12.955937] ? kmem_cache_double_destroy+0x1bd/0x380 [ 12.955974] ? kasan_complete_mode_report_info+0x64/0x200 [ 12.956016] ? kmem_cache_double_destroy+0x1bd/0x380 [ 12.956202] kasan_report+0x140/0x180 [ 12.956272] ? kmem_cache_double_destroy+0x1bd/0x380 [ 12.956298] ? kmem_cache_double_destroy+0x1bd/0x380 [ 12.956336] __kasan_check_byte+0x3d/0x50 [ 12.956372] kmem_cache_destroy+0x25/0x1d0 [ 12.956409] kmem_cache_double_destroy+0x1bd/0x380 [ 12.956446] ? __pfx_kmem_cache_double_destroy+0x10/0x10 [ 12.956480] ? finish_task_switch.isra.0+0x153/0x700 [ 12.956701] ? __switch_to+0x5d9/0xf60 [ 12.956756] ? __pfx_empty_cache_ctor+0x10/0x10 [ 12.956799] ? __pfx_read_tsc+0x10/0x10 [ 12.956824] ? ktime_get_ts64+0x84/0x230 [ 12.956849] kunit_try_run_case+0x1a6/0x480 [ 12.956874] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.956892] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 12.956913] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.956935] ? __kthread_parkme+0x82/0x160 [ 12.956953] ? preempt_count_sub+0x50/0x80 [ 12.956973] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.956991] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.957013] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.957035] kthread+0x257/0x310 [ 12.957080] ? __pfx_kthread+0x10/0x10 [ 12.957101] ret_from_fork+0x41/0x80 [ 12.957119] ? __pfx_kthread+0x10/0x10 [ 12.957135] ret_from_fork_asm+0x1a/0x30 [ 12.957164] </TASK> [ 12.957177] [ 12.967229] Allocated by task 220: [ 12.967457] kasan_save_stack+0x45/0x70 [ 12.967697] kasan_save_track+0x18/0x40 [ 12.967853] kasan_save_alloc_info+0x3b/0x50 [ 12.968027] __kasan_slab_alloc+0x91/0xa0 [ 12.968316] kmem_cache_alloc_noprof+0x107/0x350 [ 12.968629] __kmem_cache_create_args+0x18a/0x280 [ 12.970172] kmem_cache_double_destroy+0xd3/0x380 [ 12.970630] kunit_try_run_case+0x1a6/0x480 [ 12.970830] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.971016] kthread+0x257/0x310 [ 12.972775] ret_from_fork+0x41/0x80 [ 12.973275] ret_from_fork_asm+0x1a/0x30 [ 12.974606] [ 12.976114] Freed by task 220: [ 12.976402] kasan_save_stack+0x45/0x70 [ 12.977262] kasan_save_track+0x18/0x40 [ 12.978340] kasan_save_free_info+0x3f/0x60 [ 12.978803] __kasan_slab_free+0x56/0x70 [ 12.979037] kmem_cache_free+0x120/0x400 [ 12.979502] slab_kmem_cache_release+0x2e/0x40 [ 12.980213] kmem_cache_release+0x16/0x20 [ 12.980392] kobject_put+0x181/0x450 [ 12.980656] sysfs_slab_release+0x16/0x20 [ 12.981292] kmem_cache_destroy+0xf0/0x1d0 [ 12.981529] kmem_cache_double_destroy+0x14c/0x380 [ 12.981873] kunit_try_run_case+0x1a6/0x480 [ 12.982213] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.982747] kthread+0x257/0x310 [ 12.983225] ret_from_fork+0x41/0x80 [ 12.983532] ret_from_fork_asm+0x1a/0x30 [ 12.983719] [ 12.983844] The buggy address belongs to the object at ffff888101ad0280 [ 12.983844] which belongs to the cache kmem_cache of size 208 [ 12.984896] The buggy address is located 0 bytes inside of [ 12.984896] freed 208-byte region [ffff888101ad0280, ffff888101ad0350) [ 12.985493] [ 12.985703] The buggy address belongs to the physical page: [ 12.986483] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101ad0 [ 12.987022] flags: 0x200000000000000(node=0|zone=2) [ 12.987508] page_type: f5(slab) [ 12.987807] raw: 0200000000000000 ffff888100041000 dead000000000122 0000000000000000 [ 12.988153] raw: 0000000000000000 00000000800c000c 00000001f5000000 0000000000000000 [ 12.988998] page dumped because: kasan: bad access detected [ 12.989534] [ 12.989678] Memory state around the buggy address: [ 12.989981] ffff888101ad0180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.990748] ffff888101ad0200: fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.990977] >ffff888101ad0280: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.991643] ^ [ 12.991845] ffff888101ad0300: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc [ 12.992213] ffff888101ad0380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.992755] ==================================================================