Date
Nov. 28, 2024, 2:36 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.466372] ================================================================== [ 33.467461] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 33.468172] Read of size 1 at addr fff00000c4081ad8 by task kunit_try_catch/245 [ 33.469219] [ 33.469566] CPU: 1 UID: 0 PID: 245 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241128 #1 [ 33.470816] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.471456] Hardware name: linux,dummy-virt (DT) [ 33.472147] Call trace: [ 33.472604] show_stack+0x20/0x38 (C) [ 33.473437] dump_stack_lvl+0x8c/0xd0 [ 33.473934] print_report+0x118/0x5e0 [ 33.474548] kasan_report+0xc8/0x118 [ 33.475052] __asan_report_load1_noabort+0x20/0x30 [ 33.475760] memcmp+0x198/0x1d8 [ 33.476299] kasan_memcmp+0x16c/0x300 [ 33.476842] kunit_try_run_case+0x14c/0x3d0 [ 33.477558] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.478246] kthread+0x24c/0x2d0 [ 33.478737] ret_from_fork+0x10/0x20 [ 33.479541] [ 33.480099] Allocated by task 245: [ 33.480659] kasan_save_stack+0x3c/0x68 [ 33.481665] kasan_save_track+0x20/0x40 [ 33.482264] kasan_save_alloc_info+0x40/0x58 [ 33.482845] __kasan_kmalloc+0xd4/0xd8 [ 33.483140] __kmalloc_cache_noprof+0x15c/0x3c0 [ 33.483814] kasan_memcmp+0xbc/0x300 [ 33.484499] kunit_try_run_case+0x14c/0x3d0 [ 33.485089] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.486051] kthread+0x24c/0x2d0 [ 33.486591] ret_from_fork+0x10/0x20 [ 33.487180] [ 33.487545] The buggy address belongs to the object at fff00000c4081ac0 [ 33.487545] which belongs to the cache kmalloc-32 of size 32 [ 33.488671] The buggy address is located 0 bytes to the right of [ 33.488671] allocated 24-byte region [fff00000c4081ac0, fff00000c4081ad8) [ 33.490715] [ 33.490994] The buggy address belongs to the physical page: [ 33.491505] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104081 [ 33.492633] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.493806] page_type: f5(slab) [ 33.494533] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 33.495673] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 33.496505] page dumped because: kasan: bad access detected [ 33.497191] [ 33.497574] Memory state around the buggy address: [ 33.498219] fff00000c4081980: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 33.499181] fff00000c4081a00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 33.500154] >fff00000c4081a80: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 33.501287] ^ [ 33.501945] fff00000c4081b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.502762] fff00000c4081b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.503546] ==================================================================
[ 24.401174] ================================================================== [ 24.402408] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 24.403314] Read of size 1 at addr ffff888102a34118 by task kunit_try_catch/265 [ 24.404729] [ 24.405181] CPU: 0 UID: 0 PID: 265 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241128 #1 [ 24.406288] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.406975] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.408014] Call Trace: [ 24.408505] <TASK> [ 24.408757] dump_stack_lvl+0x73/0xb0 [ 24.409400] print_report+0xd1/0x640 [ 24.409755] ? __virt_addr_valid+0x1db/0x2d0 [ 24.410414] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.411022] kasan_report+0x102/0x140 [ 24.412064] ? memcmp+0x1b4/0x1d0 [ 24.412662] ? memcmp+0x1b4/0x1d0 [ 24.413387] __asan_report_load1_noabort+0x18/0x20 [ 24.414072] memcmp+0x1b4/0x1d0 [ 24.414842] kasan_memcmp+0x190/0x390 [ 24.415568] ? trace_hardirqs_on+0x37/0xe0 [ 24.416314] ? __pfx_kasan_memcmp+0x10/0x10 [ 24.416885] ? finish_task_switch.isra.0+0x153/0x700 [ 24.417245] ? __switch_to+0x5d9/0xf60 [ 24.418089] ? __pfx_read_tsc+0x10/0x10 [ 24.419075] ? ktime_get_ts64+0x84/0x230 [ 24.419681] kunit_try_run_case+0x1b3/0x490 [ 24.420103] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.421035] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 24.421650] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.422529] ? __kthread_parkme+0x82/0x160 [ 24.423327] ? preempt_count_sub+0x50/0x80 [ 24.423907] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.424730] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.425243] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.425830] kthread+0x257/0x310 [ 24.426191] ? __pfx_kthread+0x10/0x10 [ 24.426815] ret_from_fork+0x41/0x80 [ 24.427615] ? __pfx_kthread+0x10/0x10 [ 24.428044] ret_from_fork_asm+0x1a/0x30 [ 24.428732] </TASK> [ 24.428951] [ 24.429190] Allocated by task 265: [ 24.429800] kasan_save_stack+0x3d/0x60 [ 24.430153] kasan_save_track+0x18/0x40 [ 24.430924] kasan_save_alloc_info+0x3b/0x50 [ 24.431463] __kasan_kmalloc+0xb7/0xc0 [ 24.431915] __kmalloc_cache_noprof+0x184/0x410 [ 24.432528] kasan_memcmp+0xb8/0x390 [ 24.432922] kunit_try_run_case+0x1b3/0x490 [ 24.433327] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.434005] kthread+0x257/0x310 [ 24.434516] ret_from_fork+0x41/0x80 [ 24.434999] ret_from_fork_asm+0x1a/0x30 [ 24.435634] [ 24.436471] The buggy address belongs to the object at ffff888102a34100 [ 24.436471] which belongs to the cache kmalloc-32 of size 32 [ 24.437868] The buggy address is located 0 bytes to the right of [ 24.437868] allocated 24-byte region [ffff888102a34100, ffff888102a34118) [ 24.439638] [ 24.439893] The buggy address belongs to the physical page: [ 24.441003] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a34 [ 24.441647] flags: 0x200000000000000(node=0|zone=2) [ 24.442292] page_type: f5(slab) [ 24.443040] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 24.444049] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 24.444804] page dumped because: kasan: bad access detected [ 24.445743] [ 24.445945] Memory state around the buggy address: [ 24.446529] ffff888102a34000: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 24.448018] ffff888102a34080: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 24.449008] >ffff888102a34100: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.449604] ^ [ 24.450152] ffff888102a34180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.450963] ffff888102a34200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.451995] ==================================================================