Date
Dec. 4, 2024, 3:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.822873] ================================================================== [ 30.824258] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 30.825199] Write of size 1 at addr fff00000c6025f00 by task kunit_try_catch/132 [ 30.827289] [ 30.827964] CPU: 1 UID: 0 PID: 132 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241204 #1 [ 30.830338] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.831350] Hardware name: linux,dummy-virt (DT) [ 30.831726] Call trace: [ 30.831940] show_stack+0x20/0x38 (C) [ 30.832246] dump_stack_lvl+0x8c/0xd0 [ 30.832544] print_report+0x118/0x5e0 [ 30.833447] kasan_report+0xc8/0x118 [ 30.834336] __asan_report_store1_noabort+0x20/0x30 [ 30.835425] kmalloc_big_oob_right+0x2a4/0x2f0 [ 30.836374] kunit_try_run_case+0x14c/0x3d0 [ 30.837259] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.838151] kthread+0x24c/0x2d0 [ 30.839249] ret_from_fork+0x10/0x20 [ 30.839852] [ 30.840255] Allocated by task 132: [ 30.840844] kasan_save_stack+0x3c/0x68 [ 30.841448] kasan_save_track+0x20/0x40 [ 30.842108] kasan_save_alloc_info+0x40/0x58 [ 30.843017] __kasan_kmalloc+0xd4/0xd8 [ 30.844154] __kmalloc_cache_noprof+0x15c/0x3c0 [ 30.845006] kmalloc_big_oob_right+0xb8/0x2f0 [ 30.846031] kunit_try_run_case+0x14c/0x3d0 [ 30.847033] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.848089] kthread+0x24c/0x2d0 [ 30.848519] ret_from_fork+0x10/0x20 [ 30.849125] [ 30.849491] The buggy address belongs to the object at fff00000c6024000 [ 30.849491] which belongs to the cache kmalloc-8k of size 8192 [ 30.851681] The buggy address is located 0 bytes to the right of [ 30.851681] allocated 7936-byte region [fff00000c6024000, fff00000c6025f00) [ 30.853534] [ 30.854359] The buggy address belongs to the physical page: [ 30.855487] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106020 [ 30.856520] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 30.857475] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 30.858695] page_type: f5(slab) [ 30.859105] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 30.859897] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 30.861185] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 30.862577] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 30.863570] head: 0bfffe0000000003 ffffc1ffc3180801 ffffffffffffffff 0000000000000000 [ 30.864600] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 30.865559] page dumped because: kasan: bad access detected [ 30.866645] [ 30.866935] Memory state around the buggy address: [ 30.868361] fff00000c6025e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.869267] fff00000c6025e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 30.870262] >fff00000c6025f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.871136] ^ [ 30.871600] fff00000c6025f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.872991] fff00000c6026000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.873571] ==================================================================
[ 21.512978] ================================================================== [ 21.514621] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x318/0x370 [ 21.515919] Write of size 1 at addr ffff888102b71f00 by task kunit_try_catch/152 [ 21.517114] [ 21.517331] CPU: 0 UID: 0 PID: 152 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241204 #1 [ 21.518963] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.519671] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.520449] Call Trace: [ 21.520848] <TASK> [ 21.521161] dump_stack_lvl+0x73/0xb0 [ 21.521568] print_report+0xd1/0x640 [ 21.522874] ? __virt_addr_valid+0x1db/0x2d0 [ 21.523723] ? kasan_complete_mode_report_info+0x2a/0x200 [ 21.524509] kasan_report+0x102/0x140 [ 21.524963] ? kmalloc_big_oob_right+0x318/0x370 [ 21.525780] ? kmalloc_big_oob_right+0x318/0x370 [ 21.526954] __asan_report_store1_noabort+0x1b/0x30 [ 21.527419] kmalloc_big_oob_right+0x318/0x370 [ 21.527942] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 21.529010] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 21.529743] kunit_try_run_case+0x1b3/0x490 [ 21.530165] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.531503] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 21.531969] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.533377] ? __kthread_parkme+0x82/0x160 [ 21.533619] ? preempt_count_sub+0x50/0x80 [ 21.533906] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.534396] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.535003] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.535464] kthread+0x257/0x310 [ 21.536139] ? __pfx_kthread+0x10/0x10 [ 21.536938] ret_from_fork+0x41/0x80 [ 21.537363] ? __pfx_kthread+0x10/0x10 [ 21.537813] ret_from_fork_asm+0x1a/0x30 [ 21.538236] </TASK> [ 21.538492] [ 21.538695] Allocated by task 152: [ 21.540732] kasan_save_stack+0x3d/0x60 [ 21.541533] kasan_save_track+0x18/0x40 [ 21.542031] kasan_save_alloc_info+0x3b/0x50 [ 21.542540] __kasan_kmalloc+0xb7/0xc0 [ 21.542849] __kmalloc_cache_noprof+0x184/0x410 [ 21.543180] kmalloc_big_oob_right+0xaa/0x370 [ 21.543793] kunit_try_run_case+0x1b3/0x490 [ 21.545243] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.545777] kthread+0x257/0x310 [ 21.546056] ret_from_fork+0x41/0x80 [ 21.546489] ret_from_fork_asm+0x1a/0x30 [ 21.546864] [ 21.547015] The buggy address belongs to the object at ffff888102b70000 [ 21.547015] which belongs to the cache kmalloc-8k of size 8192 [ 21.548124] The buggy address is located 0 bytes to the right of [ 21.548124] allocated 7936-byte region [ffff888102b70000, ffff888102b71f00) [ 21.549971] [ 21.550360] The buggy address belongs to the physical page: [ 21.550777] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b70 [ 21.551709] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 21.552649] flags: 0x200000000000040(head|node=0|zone=2) [ 21.553840] page_type: f5(slab) [ 21.554682] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 21.555694] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 21.556662] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 21.557948] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 21.559190] head: 0200000000000003 ffffea00040adc01 ffffffffffffffff 0000000000000000 [ 21.560365] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 21.560873] page dumped because: kasan: bad access detected [ 21.562287] [ 21.562519] Memory state around the buggy address: [ 21.563206] ffff888102b71e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.563978] ffff888102b71e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.565103] >ffff888102b71f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.566187] ^ [ 21.566496] ffff888102b71f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.568068] ffff888102b72000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.569125] ==================================================================