Hay
Date
Dec. 3, 2024, 11:38 p.m.

Environment
qemu-arm64
qemu-x86_64

[   29.159038] ==================================================================
[   29.160127] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330
[   29.161314] Read of size 1 at addr fff00000c640d000 by task kunit_try_catch/129
[   29.162270] 
[   29.162637] CPU: 1 UID: 0 PID: 129 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241203 #1
[   29.164112] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.165266] Hardware name: linux,dummy-virt (DT)
[   29.165921] Call trace:
[   29.166342]  show_stack+0x20/0x38 (C)
[   29.167015]  dump_stack_lvl+0x8c/0xd0
[   29.167710]  print_report+0x118/0x5e0
[   29.168261]  kasan_report+0xc8/0x118
[   29.168845]  __asan_report_load1_noabort+0x20/0x30
[   29.169522]  kmalloc_node_oob_right+0x2f4/0x330
[   29.170142]  kunit_try_run_case+0x14c/0x3d0
[   29.170832]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.171541]  kthread+0x24c/0x2d0
[   29.172044]  ret_from_fork+0x10/0x20
[   29.172716] 
[   29.173000] Allocated by task 129:
[   29.173814]  kasan_save_stack+0x3c/0x68
[   29.174537]  kasan_save_track+0x20/0x40
[   29.175133]  kasan_save_alloc_info+0x40/0x58
[   29.176111]  __kasan_kmalloc+0xd4/0xd8
[   29.176682]  __kmalloc_cache_node_noprof+0x168/0x3d0
[   29.177465]  kmalloc_node_oob_right+0xbc/0x330
[   29.178154]  kunit_try_run_case+0x14c/0x3d0
[   29.178855]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.179736]  kthread+0x24c/0x2d0
[   29.180239]  ret_from_fork+0x10/0x20
[   29.180814] 
[   29.181873] The buggy address belongs to the object at fff00000c640c000
[   29.181873]  which belongs to the cache kmalloc-4k of size 4096
[   29.183257] The buggy address is located 0 bytes to the right of
[   29.183257]  allocated 4096-byte region [fff00000c640c000, fff00000c640d000)
[   29.184654] 
[   29.184954] The buggy address belongs to the physical page:
[   29.186136] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106408
[   29.187589] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   29.188487] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   29.189384] page_type: f5(slab)
[   29.189915] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000
[   29.190754] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   29.192070] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000
[   29.193097] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   29.194117] head: 0bfffe0000000003 ffffc1ffc3190201 ffffffffffffffff 0000000000000000
[   29.195053] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
[   29.195981] page dumped because: kasan: bad access detected
[   29.196796] 
[   29.197070] Memory state around the buggy address:
[   29.198101]  fff00000c640cf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.198948]  fff00000c640cf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.200828] >fff00000c640d000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.201858]                    ^
[   29.202426]  fff00000c640d080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.203515]  fff00000c640d100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   29.204482] ==================================================================

[   24.776172] ==================================================================
[   24.776828] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x36b/0x3d0
[   24.777600] Read of size 1 at addr ffff88810281b000 by task kunit_try_catch/149
[   24.778237] 
[   24.778616] CPU: 0 UID: 0 PID: 149 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241203 #1
[   24.779677] Tainted: [B]=BAD_PAGE, [N]=TEST
[   24.779983] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   24.781191] Call Trace:
[   24.781593]  <TASK>
[   24.782114]  dump_stack_lvl+0x73/0xb0
[   24.783607]  print_report+0xd1/0x640
[   24.784119]  ? __virt_addr_valid+0x1db/0x2d0
[   24.784887]  ? kasan_complete_mode_report_info+0x2a/0x200
[   24.785396]  kasan_report+0x102/0x140
[   24.785726]  ? kmalloc_node_oob_right+0x36b/0x3d0
[   24.786236]  ? kmalloc_node_oob_right+0x36b/0x3d0
[   24.786717]  __asan_report_load1_noabort+0x18/0x20
[   24.787383]  kmalloc_node_oob_right+0x36b/0x3d0
[   24.788482]  ? __pfx_kmalloc_node_oob_right+0x10/0x10
[   24.788767]  ? __schedule+0xc3e/0x2790
[   24.789469]  ? __pfx_read_tsc+0x10/0x10
[   24.790002]  ? ktime_get_ts64+0x86/0x230
[   24.790344]  kunit_try_run_case+0x1b3/0x490
[   24.790943]  ? __pfx_kunit_try_run_case+0x10/0x10
[   24.791488]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   24.791833]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   24.792518]  ? __kthread_parkme+0x82/0x160
[   24.793471]  ? preempt_count_sub+0x50/0x80
[   24.793887]  ? __pfx_kunit_try_run_case+0x10/0x10
[   24.794206]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   24.794968]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   24.795607]  kthread+0x257/0x310
[   24.796091]  ? __pfx_kthread+0x10/0x10
[   24.796488]  ret_from_fork+0x41/0x80
[   24.796935]  ? __pfx_kthread+0x10/0x10
[   24.797516]  ret_from_fork_asm+0x1a/0x30
[   24.798114]  </TASK>
[   24.798381] 
[   24.798878] Allocated by task 149:
[   24.799377]  kasan_save_stack+0x3d/0x60
[   24.799937]  kasan_save_track+0x18/0x40
[   24.800338]  kasan_save_alloc_info+0x3b/0x50
[   24.800793]  __kasan_kmalloc+0xb7/0xc0
[   24.800998]  __kmalloc_cache_node_noprof+0x183/0x410
[   24.801458]  kmalloc_node_oob_right+0xac/0x3d0
[   24.802401]  kunit_try_run_case+0x1b3/0x490
[   24.803417]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   24.804261]  kthread+0x257/0x310
[   24.804714]  ret_from_fork+0x41/0x80
[   24.805101]  ret_from_fork_asm+0x1a/0x30
[   24.805959] 
[   24.806186] The buggy address belongs to the object at ffff88810281a000
[   24.806186]  which belongs to the cache kmalloc-4k of size 4096
[   24.807322] The buggy address is located 0 bytes to the right of
[   24.807322]  allocated 4096-byte region [ffff88810281a000, ffff88810281b000)
[   24.808376] 
[   24.809006] The buggy address belongs to the physical page:
[   24.809669] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102818
[   24.811217] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   24.811752] flags: 0x200000000000040(head|node=0|zone=2)
[   24.812357] page_type: f5(slab)
[   24.813439] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000
[   24.814126] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   24.814741] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000
[   24.815293] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   24.816200] head: 0200000000000003 ffffea00040a0601 ffffffffffffffff 0000000000000000
[   24.816842] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
[   24.817918] page dumped because: kasan: bad access detected
[   24.818179] 
[   24.818265] Memory state around the buggy address:
[   24.818424]  ffff88810281af00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   24.819423]  ffff88810281af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   24.820249] >ffff88810281b000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   24.821881]                    ^
[   24.822177]  ffff88810281b080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   24.823148]  ffff88810281b100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   24.824097] ==================================================================