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Date
May 30, 2025, 4:14 a.m.

Environment
e850-96
qemu-x86_64
x15 

[   20.217741] ==================================================================
[   20.226743] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330
[   20.234115] Read of size 1 at addr ffff000802f01000 by task kunit_try_catch/184
[   20.241405] 
[   20.242893] CPU: 6 UID: 0 PID: 184 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250530 #1 PREEMPT 
[   20.242948] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.242964] Hardware name: WinLink E850-96 board (DT)
[   20.242984] Call trace:
[   20.243000]  show_stack+0x20/0x38 (C)
[   20.243037]  dump_stack_lvl+0x8c/0xd0
[   20.243074]  print_report+0x118/0x608
[   20.243109]  kasan_report+0xdc/0x128
[   20.243141]  __asan_report_load1_noabort+0x20/0x30
[   20.243173]  kmalloc_node_oob_right+0x2f4/0x330
[   20.243206]  kunit_try_run_case+0x170/0x3f0
[   20.243241]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.243278]  kthread+0x328/0x630
[   20.243306]  ret_from_fork+0x10/0x20
[   20.243342] 
[   20.306944] Allocated by task 184:
[   20.310332]  kasan_save_stack+0x3c/0x68
[   20.314147]  kasan_save_track+0x20/0x40
[   20.317967]  kasan_save_alloc_info+0x40/0x58
[   20.322220]  __kasan_kmalloc+0xd4/0xd8
[   20.325953]  __kmalloc_cache_node_noprof+0x168/0x3d0
[   20.330901]  kmalloc_node_oob_right+0xbc/0x330
[   20.335328]  kunit_try_run_case+0x170/0x3f0
[   20.339494]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.344963]  kthread+0x328/0x630
[   20.348174]  ret_from_fork+0x10/0x20
[   20.351734] 
[   20.353212] The buggy address belongs to the object at ffff000802f00000
[   20.353212]  which belongs to the cache kmalloc-4k of size 4096
[   20.365713] The buggy address is located 0 bytes to the right of
[   20.365713]  allocated 4096-byte region [ffff000802f00000, ffff000802f01000)
[   20.378730] 
[   20.380208] The buggy address belongs to the physical page:
[   20.385766] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x882f00
[   20.393749] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   20.401389] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   20.408332] page_type: f5(slab)
[   20.411469] raw: 0bfffe0000000040 ffff000800003040 dead000000000122 0000000000000000
[   20.419187] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   20.426916] head: 0bfffe0000000040 ffff000800003040 dead000000000122 0000000000000000
[   20.434725] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   20.442538] head: 0bfffe0000000003 fffffdffe00bc001 00000000ffffffff 00000000ffffffff
[   20.450350] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   20.458156] page dumped because: kasan: bad access detected
[   20.463712] 
[   20.465186] Memory state around the buggy address:
[   20.469968]  ffff000802f00f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.477170]  ffff000802f00f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.484374] >ffff000802f01000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.491575]                    ^
[   20.494790]  ffff000802f01080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.501995]  ffff000802f01100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   20.509197] ==================================================================
Metadata Full log Test run details 

[   16.755512] ==================================================================
[   16.756913] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0
[   16.757603] Read of size 1 at addr ffff88810299f000 by task kunit_try_catch/157
[   16.758077] 
[   16.758651] CPU: 0 UID: 0 PID: 157 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250530 #1 PREEMPT(voluntary) 
[   16.758718] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.758735] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   16.758764] Call Trace:
[   16.758790]  <TASK>
[   16.758832]  dump_stack_lvl+0x73/0xb0
[   16.758872]  print_report+0xd1/0x650
[   16.758905]  ? __virt_addr_valid+0x1db/0x2d0
[   16.758938]  ? kmalloc_node_oob_right+0x369/0x3c0
[   16.758971]  ? kasan_complete_mode_report_info+0x2a/0x200
[   16.759001]  ? kmalloc_node_oob_right+0x369/0x3c0
[   16.759035]  kasan_report+0x141/0x180
[   16.759098]  ? kmalloc_node_oob_right+0x369/0x3c0
[   16.759189]  __asan_report_load1_noabort+0x18/0x20
[   16.759449]  kmalloc_node_oob_right+0x369/0x3c0
[   16.759498]  ? __pfx_kmalloc_node_oob_right+0x10/0x10
[   16.759536]  ? kasan_save_stack+0x45/0x70
[   16.759567]  ? __pfx_read_tsc+0x10/0x10
[   16.759599]  ? ktime_get_ts64+0x86/0x230
[   16.759633]  kunit_try_run_case+0x1a5/0x480
[   16.759664]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.759691]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   16.759726]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   16.759761]  ? __kthread_parkme+0x82/0x180
[   16.759805]  ? preempt_count_sub+0x50/0x80
[   16.759856]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.759885]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.759920]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   16.759954]  kthread+0x337/0x6f0
[   16.759980]  ? trace_preempt_on+0x20/0xc0
[   16.760013]  ? __pfx_kthread+0x10/0x10
[   16.760040]  ? _raw_spin_unlock_irq+0x47/0x80
[   16.760098]  ? calculate_sigpending+0x7b/0xa0
[   16.760135]  ? __pfx_kthread+0x10/0x10
[   16.760174]  ret_from_fork+0x116/0x1d0
[   16.760555]  ? __pfx_kthread+0x10/0x10
[   16.760593]  ret_from_fork_asm+0x1a/0x30
[   16.760640]  </TASK>
[   16.760656] 
[   16.783828] Allocated by task 157:
[   16.784181]  kasan_save_stack+0x45/0x70
[   16.785684]  kasan_save_track+0x18/0x40
[   16.786618]  kasan_save_alloc_info+0x3b/0x50
[   16.787573]  __kasan_kmalloc+0xb7/0xc0
[   16.788100]  __kmalloc_cache_node_noprof+0x188/0x420
[   16.788925]  kmalloc_node_oob_right+0xab/0x3c0
[   16.789727]  kunit_try_run_case+0x1a5/0x480
[   16.790625]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.790976]  kthread+0x337/0x6f0
[   16.791599]  ret_from_fork+0x116/0x1d0
[   16.791993]  ret_from_fork_asm+0x1a/0x30
[   16.792782] 
[   16.793824] The buggy address belongs to the object at ffff88810299e000
[   16.793824]  which belongs to the cache kmalloc-4k of size 4096
[   16.795073] The buggy address is located 0 bytes to the right of
[   16.795073]  allocated 4096-byte region [ffff88810299e000, ffff88810299f000)
[   16.796412] 
[   16.797012] The buggy address belongs to the physical page:
[   16.798042] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102998
[   16.799268] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   16.799906] flags: 0x200000000000040(head|node=0|zone=2)
[   16.800628] page_type: f5(slab)
[   16.801361] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000
[   16.802180] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   16.803098] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000
[   16.804356] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000
[   16.805005] head: 0200000000000003 ffffea00040a6601 00000000ffffffff 00000000ffffffff
[   16.805778] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
[   16.806581] page dumped because: kasan: bad access detected
[   16.807552] 
[   16.807719] Memory state around the buggy address:
[   16.808783]  ffff88810299ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.809416]  ffff88810299ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   16.810414] >ffff88810299f000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.810957]                    ^
[   16.811182]  ffff88810299f080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.811942]  ffff88810299f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.812539] ==================================================================
Metadata Full log Test run details 

[   46.465454] ==================================================================
[   46.476409] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x380/0x3c4
[   46.483886] Read of size 1 at addr cc7ab000 by task kunit_try_catch/192
[   46.490539] 
[   46.492034] CPU: 0 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G    B   W        N  6.15.0-next-20250530 #1 NONE 
[   46.492065] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[   46.492065] Hardware name: Generic DRA74X (Flattened Device Tree)
[   46.492095] Call trace: 
[   46.492095]  unwind_backtrace from show_stack+0x18/0x1c
[   46.492126]  show_stack from dump_stack_lvl+0x70/0x90
[   46.492156]  dump_stack_lvl from print_report+0x158/0x528
[   46.492156]  print_report from kasan_report+0xdc/0x118
[   46.492187]  kasan_report from kmalloc_node_oob_right+0x380/0x3c4
[   46.492218]  kmalloc_node_oob_right from kunit_try_run_case+0x22c/0x5a8
[   46.492248]  kunit_try_run_case from kunit_generic_run_threadfn_adapter+0xc4/0x128
[   46.492279]  kunit_generic_run_threadfn_adapter from kthread+0x464/0x810
[   46.492309]  kthread from ret_from_fork+0x14/0x20
[   46.492309] Exception stack(0xf21abfb0 to 0xf21abff8)
[   46.492340] bfa0:                                     00000000 00000000 00000000 00000000
[   46.492340] bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   46.492370] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000
[   46.492370] 
[   46.598968] Allocated by task 192:
[   46.602416]  kasan_save_track+0x30/0x5c
[   46.606262]  __kasan_kmalloc+0x8c/0x94
[   46.610046]  kmalloc_node_oob_right+0xd4/0x3c4
[   46.614532]  kunit_try_run_case+0x22c/0x5a8
[   46.618743]  kunit_generic_run_threadfn_adapter+0xc4/0x128
[   46.624267]  kthread+0x464/0x810
[   46.627532]  ret_from_fork+0x14/0x20
[   46.631134] 
[   46.632629] The buggy address belongs to the object at cc7aa000
[   46.632629]  which belongs to the cache kmalloc-4k of size 4096
[   46.644531] The buggy address is located 0 bytes to the right of
[   46.644531]  allocated 4096-byte region [cc7aa000, cc7ab000)
[   46.656249] 
[   46.657775] The buggy address belongs to the physical page:
[   46.663391] page: refcount:0 mapcount:0 mapping:00000000 index:0x0 pfn:0x8c7a8
[   46.670654] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   46.678344] flags: 0x40(head|zone=0)
[   46.681945] page_type: f5(slab)
[   46.685119] raw: 00000040 c7001900 00000122 00000000 00000000 80040004 f5000000 00000000
[   46.693267] raw: 00000000
[   46.695922] head: 00000040 c7001900 00000122 00000000 00000000 80040004 f5000000 00000000
[   46.704162] head: 00000000 00000003 eebc03a1 ffffffff 00000000 ffffffff 00000000 ffffffff
[   46.712371] head: 00000000 00000008
[   46.715881] page dumped because: kasan: bad access detected
[   46.721496] 
[   46.722991] Memory state around the buggy address:
[   46.727813]  cc7aaf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   46.734405]  cc7aaf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   46.740966] >cc7ab000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   46.747528]            ^
[   46.750091]  cc7ab080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   46.756652]  cc7ab100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   46.763214] ==================================================================
Metadata Full log Test run details