Date
Dec. 9, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.223996] ================================================================== [ 23.225058] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 23.225865] Write of size 1 at addr fff00000c5dc5f00 by task kunit_try_catch/132 [ 23.226751] [ 23.227176] CPU: 1 UID: 0 PID: 132 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 23.228493] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.229266] Hardware name: linux,dummy-virt (DT) [ 23.229757] Call trace: [ 23.230144] show_stack+0x20/0x38 (C) [ 23.230853] dump_stack_lvl+0x8c/0xd0 [ 23.232208] print_report+0x118/0x5e0 [ 23.232785] kasan_report+0xc8/0x118 [ 23.233440] __asan_report_store1_noabort+0x20/0x30 [ 23.234269] kmalloc_big_oob_right+0x2a4/0x2f0 [ 23.235231] kunit_try_run_case+0x14c/0x3d0 [ 23.235815] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.236620] kthread+0x24c/0x2d0 [ 23.237209] ret_from_fork+0x10/0x20 [ 23.237792] [ 23.238093] Allocated by task 132: [ 23.238609] kasan_save_stack+0x3c/0x68 [ 23.239464] kasan_save_track+0x20/0x40 [ 23.240047] kasan_save_alloc_info+0x40/0x58 [ 23.240720] __kasan_kmalloc+0xd4/0xd8 [ 23.241317] __kmalloc_cache_noprof+0x15c/0x3c0 [ 23.241956] kmalloc_big_oob_right+0xb8/0x2f0 [ 23.242587] kunit_try_run_case+0x14c/0x3d0 [ 23.243378] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.243882] kthread+0x24c/0x2d0 [ 23.244241] ret_from_fork+0x10/0x20 [ 23.244656] [ 23.245132] The buggy address belongs to the object at fff00000c5dc4000 [ 23.245132] which belongs to the cache kmalloc-8k of size 8192 [ 23.246738] The buggy address is located 0 bytes to the right of [ 23.246738] allocated 7936-byte region [fff00000c5dc4000, fff00000c5dc5f00) [ 23.248356] [ 23.248749] The buggy address belongs to the physical page: [ 23.249383] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105dc0 [ 23.250412] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 23.251567] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 23.252475] page_type: f5(slab) [ 23.253293] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 23.254241] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 23.255214] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 23.256063] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 23.257003] head: 0bfffe0000000003 ffffc1ffc3177001 ffffffffffffffff 0000000000000000 [ 23.257743] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 23.258797] page dumped because: kasan: bad access detected [ 23.259517] [ 23.259816] Memory state around the buggy address: [ 23.260472] fff00000c5dc5e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.261265] fff00000c5dc5e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.262175] >fff00000c5dc5f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.262937] ^ [ 23.263889] fff00000c5dc5f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.264534] fff00000c5dc6000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.265421] ==================================================================
[ 22.815972] ================================================================== [ 22.817205] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x318/0x370 [ 22.817958] Write of size 1 at addr ffff8881029ddf00 by task kunit_try_catch/151 [ 22.818735] [ 22.819122] CPU: 0 UID: 0 PID: 151 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 22.819856] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.820388] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 22.821184] Call Trace: [ 22.821887] <TASK> [ 22.822598] dump_stack_lvl+0x73/0xb0 [ 22.823549] print_report+0xd1/0x640 [ 22.824193] ? __virt_addr_valid+0x1db/0x2d0 [ 22.824658] ? kasan_complete_mode_report_info+0x2a/0x200 [ 22.826348] kasan_report+0x102/0x140 [ 22.826928] ? kmalloc_big_oob_right+0x318/0x370 [ 22.827732] ? kmalloc_big_oob_right+0x318/0x370 [ 22.828526] __asan_report_store1_noabort+0x1b/0x30 [ 22.829291] kmalloc_big_oob_right+0x318/0x370 [ 22.829597] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 22.831077] ? __schedule+0xc70/0x27e0 [ 22.831484] ? __pfx_read_tsc+0x10/0x10 [ 22.831706] ? ktime_get_ts64+0x86/0x230 [ 22.832400] kunit_try_run_case+0x1b3/0x490 [ 22.833348] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.834003] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 22.835386] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 22.835871] ? __kthread_parkme+0x82/0x160 [ 22.836741] ? preempt_count_sub+0x50/0x80 [ 22.837614] ? __pfx_kunit_try_run_case+0x10/0x10 [ 22.838594] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 22.839129] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.840010] kthread+0x257/0x310 [ 22.841091] ? __pfx_kthread+0x10/0x10 [ 22.841502] ret_from_fork+0x41/0x80 [ 22.842348] ? __pfx_kthread+0x10/0x10 [ 22.842844] ret_from_fork_asm+0x1a/0x30 [ 22.843407] </TASK> [ 22.843718] [ 22.843882] Allocated by task 151: [ 22.844655] kasan_save_stack+0x3d/0x60 [ 22.846046] kasan_save_track+0x18/0x40 [ 22.846589] kasan_save_alloc_info+0x3b/0x50 [ 22.847517] __kasan_kmalloc+0xb7/0xc0 [ 22.848384] __kmalloc_cache_noprof+0x184/0x410 [ 22.848701] kmalloc_big_oob_right+0xaa/0x370 [ 22.849025] kunit_try_run_case+0x1b3/0x490 [ 22.849530] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 22.849895] kthread+0x257/0x310 [ 22.850379] ret_from_fork+0x41/0x80 [ 22.850995] ret_from_fork_asm+0x1a/0x30 [ 22.852096] [ 22.852759] The buggy address belongs to the object at ffff8881029dc000 [ 22.852759] which belongs to the cache kmalloc-8k of size 8192 [ 22.853836] The buggy address is located 0 bytes to the right of [ 22.853836] allocated 7936-byte region [ffff8881029dc000, ffff8881029ddf00) [ 22.856161] [ 22.856526] The buggy address belongs to the physical page: [ 22.856914] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029d8 [ 22.858066] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 22.858806] flags: 0x200000000000040(head|node=0|zone=2) [ 22.859987] page_type: f5(slab) [ 22.860799] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 22.861557] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 22.863281] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 22.864597] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 22.865804] head: 0200000000000003 ffffea00040a7601 ffffffffffffffff 0000000000000000 [ 22.866824] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 22.867804] page dumped because: kasan: bad access detected [ 22.869052] [ 22.869198] Memory state around the buggy address: [ 22.869795] ffff8881029dde00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.870569] ffff8881029dde80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 22.871870] >ffff8881029ddf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.872727] ^ [ 22.873374] ffff8881029ddf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.874134] ffff8881029de000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.875237] ==================================================================