Date
June 7, 2025, 10:40 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 20.355429] ================================================================== [ 20.356605] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2b8/0x308 [ 20.357297] Write of size 1 at addr fff00000c69a9f00 by task kunit_try_catch/132 [ 20.357825] [ 20.358212] CPU: 1 UID: 0 PID: 132 Comm: kunit_try_catch Tainted: G B N 6.12.33-rc1 #1 [ 20.358415] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.358491] Hardware name: linux,dummy-virt (DT) [ 20.358578] Call trace: [ 20.358642] dump_backtrace+0x9c/0x128 [ 20.358758] show_stack+0x20/0x38 [ 20.358858] dump_stack_lvl+0x8c/0xd0 [ 20.358990] print_report+0x118/0x5f0 [ 20.359098] kasan_report+0xdc/0x128 [ 20.359179] __asan_report_store1_noabort+0x20/0x30 [ 20.359232] kmalloc_big_oob_right+0x2b8/0x308 [ 20.359280] kunit_try_run_case+0x170/0x3f0 [ 20.359326] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.359433] kthread+0x24c/0x2d0 [ 20.359539] ret_from_fork+0x10/0x20 [ 20.359632] [ 20.366590] Allocated by task 132: [ 20.367114] kasan_save_stack+0x3c/0x68 [ 20.367573] kasan_save_track+0x20/0x40 [ 20.368152] kasan_save_alloc_info+0x40/0x58 [ 20.368747] __kasan_kmalloc+0xd4/0xd8 [ 20.369523] __kmalloc_cache_noprof+0x154/0x320 [ 20.370153] kmalloc_big_oob_right+0xb8/0x308 [ 20.370689] kunit_try_run_case+0x170/0x3f0 [ 20.371224] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.372749] kthread+0x24c/0x2d0 [ 20.373198] ret_from_fork+0x10/0x20 [ 20.373710] [ 20.374028] The buggy address belongs to the object at fff00000c69a8000 [ 20.374028] which belongs to the cache kmalloc-8k of size 8192 [ 20.375185] The buggy address is located 0 bytes to the right of [ 20.375185] allocated 7936-byte region [fff00000c69a8000, fff00000c69a9f00) [ 20.376655] [ 20.376983] The buggy address belongs to the physical page: [ 20.377569] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1069a8 [ 20.378510] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 20.379332] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 20.380347] page_type: f5(slab) [ 20.380791] raw: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 20.381623] raw: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000 [ 20.382424] head: 0bfffe0000000040 fff00000c0002280 dead000000000122 0000000000000000 [ 20.383205] head: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000 [ 20.384194] head: 0bfffe0000000003 ffffc1ffc31a6a01 ffffffffffffffff 0000000000000000 [ 20.384994] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 20.385742] page dumped because: kasan: bad access detected [ 20.386332] [ 20.386645] Memory state around the buggy address: [ 20.387144] fff00000c69a9e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.388223] fff00000c69a9e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 20.388940] >fff00000c69a9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.389632] ^ [ 20.390093] fff00000c69a9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.390811] fff00000c69aa000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 20.392240] ==================================================================
[ 16.452922] ================================================================== [ 16.453913] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x318/0x370 [ 16.454491] Write of size 1 at addr ffff888101efdf00 by task kunit_try_catch/149 [ 16.455160] [ 16.455751] CPU: 1 UID: 0 PID: 149 Comm: kunit_try_catch Tainted: G B N 6.12.33-rc1 #1 [ 16.455893] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.455929] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.455986] Call Trace: [ 16.456023] <TASK> [ 16.456073] dump_stack_lvl+0x73/0xb0 [ 16.456155] print_report+0xd1/0x640 [ 16.456255] ? __virt_addr_valid+0x1db/0x2d0 [ 16.456363] ? kmalloc_big_oob_right+0x318/0x370 [ 16.456463] ? kasan_complete_mode_report_info+0x2a/0x200 [ 16.456539] ? kmalloc_big_oob_right+0x318/0x370 [ 16.456611] kasan_report+0x140/0x180 [ 16.456689] ? kmalloc_big_oob_right+0x318/0x370 [ 16.456908] __asan_report_store1_noabort+0x1b/0x30 [ 16.456984] kmalloc_big_oob_right+0x318/0x370 [ 16.457062] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 16.457100] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 16.457136] ? trace_hardirqs_on+0x37/0xe0 [ 16.457170] ? __pfx_read_tsc+0x10/0x10 [ 16.457197] ? ktime_get_ts64+0x84/0x230 [ 16.457266] kunit_try_run_case+0x1a6/0x480 [ 16.457301] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.457332] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 16.457360] ? __kthread_parkme+0x82/0x160 [ 16.457387] ? preempt_count_sub+0x50/0x80 [ 16.457418] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.457470] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 16.457600] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.457640] kthread+0x257/0x310 [ 16.457666] ? __pfx_kthread+0x10/0x10 [ 16.457693] ret_from_fork+0x41/0x80 [ 16.457722] ? __pfx_kthread+0x10/0x10 [ 16.457747] ret_from_fork_asm+0x1a/0x30 [ 16.457789] </TASK> [ 16.457803] [ 16.475142] Allocated by task 149: [ 16.475836] kasan_save_stack+0x45/0x70 [ 16.476336] kasan_save_track+0x18/0x40 [ 16.476881] kasan_save_alloc_info+0x3b/0x50 [ 16.477925] __kasan_kmalloc+0xb7/0xc0 [ 16.478248] __kmalloc_cache_noprof+0x168/0x350 [ 16.478995] kmalloc_big_oob_right+0xaa/0x370 [ 16.479587] kunit_try_run_case+0x1a6/0x480 [ 16.480125] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.481043] kthread+0x257/0x310 [ 16.481414] ret_from_fork+0x41/0x80 [ 16.482037] ret_from_fork_asm+0x1a/0x30 [ 16.482435] [ 16.482998] The buggy address belongs to the object at ffff888101efc000 [ 16.482998] which belongs to the cache kmalloc-8k of size 8192 [ 16.484074] The buggy address is located 0 bytes to the right of [ 16.484074] allocated 7936-byte region [ffff888101efc000, ffff888101efdf00) [ 16.485104] [ 16.485360] The buggy address belongs to the physical page: [ 16.485811] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101ef8 [ 16.487381] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 16.488340] flags: 0x200000000000040(head|node=0|zone=2) [ 16.488666] page_type: f5(slab) [ 16.489232] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 16.489992] raw: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000 [ 16.490750] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 16.491511] head: 0000000000000000 0000000080020002 00000001f5000000 0000000000000000 [ 16.493253] head: 0200000000000003 ffffea000407be01 ffffffffffffffff 0000000000000000 [ 16.494380] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 16.495344] page dumped because: kasan: bad access detected [ 16.495667] [ 16.495831] Memory state around the buggy address: [ 16.496638] ffff888101efde00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.497691] ffff888101efde80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 16.498505] >ffff888101efdf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.499777] ^ [ 16.500131] ffff888101efdf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.501343] ffff888101efe000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.502269] ==================================================================