Date
April 20, 2025, 11:09 p.m.
| Environment | |
|---|---|
| x15 | |
| x86 |
[ 56.415374] ================================================================== [ 56.425994] BUG: KASAN: slab-use-after-free in kmalloc_uaf_memset+0x1fc/0x3b0 [ 56.433166] Write of size 33 at addr cc22bf00 by task kunit_try_catch/242 [ 56.440002] [ 56.441528] CPU: 1 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G B W N 6.15.0-rc3 #1 NONE [ 56.441558] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 56.441558] Hardware name: Generic DRA74X (Flattened Device Tree) [ 56.441558] Call trace: [ 56.441558] unwind_backtrace from show_stack+0x18/0x1c [ 56.441589] show_stack from dump_stack_lvl+0x70/0x90 [ 56.441619] dump_stack_lvl from print_report+0x158/0x528 [ 56.441650] print_report from kasan_report+0xdc/0x118 [ 56.441680] kasan_report from kasan_check_range+0x14c/0x198 [ 56.441680] kasan_check_range from __asan_memset+0x20/0x3c [ 56.441711] __asan_memset from kmalloc_uaf_memset+0x1fc/0x3b0 [ 56.441741] kmalloc_uaf_memset from kunit_try_run_case+0x22c/0x5a8 [ 56.441772] kunit_try_run_case from kunit_generic_run_threadfn_adapter+0xc4/0x128 [ 56.441772] kunit_generic_run_threadfn_adapter from kthread+0x464/0x810 [ 56.441802] kthread from ret_from_fork+0x14/0x20 [ 56.441833] Exception stack(0xf24abfb0 to 0xf24abff8) [ 56.441833] bfa0: 00000000 00000000 00000000 00000000 [ 56.441864] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 56.441894] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 56.441894] [ 56.558319] Allocated by task 242: [ 56.561737] kasan_save_track+0x30/0x5c [ 56.565612] __kasan_kmalloc+0x8c/0x94 [ 56.569396] kmalloc_uaf_memset+0xcc/0x3b0 [ 56.573516] kunit_try_run_case+0x22c/0x5a8 [ 56.577728] kunit_generic_run_threadfn_adapter+0xc4/0x128 [ 56.583251] kthread+0x464/0x810 [ 56.586517] ret_from_fork+0x14/0x20 [ 56.590118] [ 56.591613] Freed by task 242: [ 56.594696] kasan_save_track+0x30/0x5c [ 56.598571] kasan_save_free_info+0x3c/0x48 [ 56.602783] __kasan_slab_free+0x40/0x50 [ 56.606750] kfree+0xe8/0x384 [ 56.609741] kmalloc_uaf_memset+0x174/0x3b0 [ 56.613952] kunit_try_run_case+0x22c/0x5a8 [ 56.618164] kunit_generic_run_threadfn_adapter+0xc4/0x128 [ 56.623687] kthread+0x464/0x810 [ 56.626953] ret_from_fork+0x14/0x20 [ 56.630554] [ 56.632049] The buggy address belongs to the object at cc22bf00 [ 56.632049] which belongs to the cache kmalloc-64 of size 64 [ 56.643768] The buggy address is located 0 bytes inside of [ 56.643768] freed 64-byte region [cc22bf00, cc22bf40) [ 56.654449] [ 56.655975] The buggy address belongs to the physical page: [ 56.661560] page: refcount:0 mapcount:0 mapping:00000000 index:0x0 pfn:0x8c22b [ 56.668853] flags: 0x0(zone=0) [ 56.671905] page_type: f5(slab) [ 56.675079] raw: 00000000 c7001300 00000122 00000000 00000000 80200020 f5000000 00000000 [ 56.683227] raw: 00000000 [ 56.685882] page dumped because: kasan: bad access detected [ 56.691467] [ 56.692993] Memory state around the buggy address: [ 56.697814] cc22be00: 00 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 56.704376] cc22be80: 00 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 56.710937] >cc22bf00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 56.717529] ^ [ 56.720062] cc22bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 56.726654] cc22c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 56.733215] ==================================================================
[ 27.442029] ================================================================== [ 27.452582] BUG: KASAN: slab-use-after-free in kmalloc_uaf_memset+0x1a3/0x360 [ 27.459761] Write of size 33 at addr ffff888107f06400 by task kunit_try_catch/229 [ 27.467244] [ 27.468765] CPU: 1 UID: 0 PID: 229 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc3 #1 PREEMPT(voluntary) [ 27.468773] Tainted: [B]=BAD_PAGE, [N]=TEST [ 27.468775] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS 2.7 12/07/2021 [ 27.468779] Call Trace: [ 27.468780] <TASK> [ 27.468782] dump_stack_lvl+0x73/0xb0 [ 27.468786] print_report+0xd1/0x650 [ 27.468790] ? __virt_addr_valid+0x1db/0x2d0 [ 27.468794] ? kmalloc_uaf_memset+0x1a3/0x360 [ 27.468798] ? kasan_complete_mode_report_info+0x64/0x200 [ 27.468802] ? kmalloc_uaf_memset+0x1a3/0x360 [ 27.468807] kasan_report+0x141/0x180 [ 27.468811] ? kmalloc_uaf_memset+0x1a3/0x360 [ 27.468816] kasan_check_range+0x10c/0x1c0 [ 27.468820] __asan_memset+0x27/0x50 [ 27.468824] kmalloc_uaf_memset+0x1a3/0x360 [ 27.468828] ? __pfx_kmalloc_uaf_memset+0x10/0x10 [ 27.468832] ? __schedule+0x10cc/0x2b30 [ 27.468837] ? ktime_get_ts64+0x83/0x230 [ 27.468841] kunit_try_run_case+0x1a2/0x480 [ 27.468846] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.468850] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 27.468855] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 27.468859] ? __kthread_parkme+0x82/0x180 [ 27.468863] ? preempt_count_sub+0x50/0x80 [ 27.468868] ? __pfx_kunit_try_run_case+0x10/0x10 [ 27.468872] kunit_generic_run_threadfn_adapter+0x82/0xf0 [ 27.468876] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 27.468880] kthread+0x334/0x6f0 [ 27.468884] ? trace_preempt_on+0x20/0xc0 [ 27.468888] ? __pfx_kthread+0x10/0x10 [ 27.468893] ? _raw_spin_unlock_irq+0x47/0x80 [ 27.468897] ? calculate_sigpending+0x7b/0xa0 [ 27.468901] ? __pfx_kthread+0x10/0x10 [ 27.468905] ret_from_fork+0x3e/0x80 [ 27.468909] ? __pfx_kthread+0x10/0x10 [ 27.468913] ret_from_fork_asm+0x1a/0x30 [ 27.468919] </TASK> [ 27.468920] [ 27.635125] Allocated by task 229: [ 27.638533] kasan_save_stack+0x45/0x70 [ 27.642373] kasan_save_track+0x18/0x40 [ 27.646212] kasan_save_alloc_info+0x3b/0x50 [ 27.650482] __kasan_kmalloc+0xb7/0xc0 [ 27.654236] __kmalloc_cache_noprof+0x189/0x420 [ 27.658770] kmalloc_uaf_memset+0xa9/0x360 [ 27.662877] kunit_try_run_case+0x1a2/0x480 [ 27.667063] kunit_generic_run_threadfn_adapter+0x82/0xf0 [ 27.672471] kthread+0x334/0x6f0 [ 27.675701] ret_from_fork+0x3e/0x80 [ 27.679325] ret_from_fork_asm+0x1a/0x30 [ 27.683250] [ 27.684757] Freed by task 229: [ 27.687819] kasan_save_stack+0x45/0x70 [ 27.691656] kasan_save_track+0x18/0x40 [ 27.695530] kasan_save_free_info+0x3f/0x60 [ 27.699754] __kasan_slab_free+0x56/0x70 [ 27.703705] kfree+0x222/0x3f0 [ 27.706813] kmalloc_uaf_memset+0x12b/0x360 [ 27.710999] kunit_try_run_case+0x1a2/0x480 [ 27.715187] kunit_generic_run_threadfn_adapter+0x82/0xf0 [ 27.720585] kthread+0x334/0x6f0 [ 27.723818] ret_from_fork+0x3e/0x80 [ 27.727397] ret_from_fork_asm+0x1a/0x30 [ 27.731322] [ 27.732820] The buggy address belongs to the object at ffff888107f06400 [ 27.732820] which belongs to the cache kmalloc-64 of size 64 [ 27.745153] The buggy address is located 0 bytes inside of [ 27.745153] freed 64-byte region [ffff888107f06400, ffff888107f06440) [ 27.757147] [ 27.758648] The buggy address belongs to the physical page: [ 27.764220] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107f06 [ 27.772229] flags: 0x200000000000000(node=0|zone=2) [ 27.777105] page_type: f5(slab) [ 27.780253] raw: 0200000000000000 ffff8881000428c0 dead000000000122 0000000000000000 [ 27.788002] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 27.795760] page dumped because: kasan: bad access detected [ 27.801338] [ 27.802836] Memory state around the buggy address: [ 27.807630] ffff888107f06300: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 27.814850] ffff888107f06380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 27.822076] >ffff888107f06400: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 27.829293] ^ [ 27.832527] ffff888107f06480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.839763] ffff888107f06500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.846981] ==================================================================