Date
Dec. 9, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.995981] ================================================================== [ 23.997118] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x180/0x520 [ 23.997942] Read of size 1 at addr fff00000c0973600 by task kunit_try_catch/152 [ 23.998813] [ 23.999646] CPU: 0 UID: 0 PID: 152 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 24.000922] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.001489] Hardware name: linux,dummy-virt (DT) [ 24.002361] Call trace: [ 24.003298] show_stack+0x20/0x38 (C) [ 24.003879] dump_stack_lvl+0x8c/0xd0 [ 24.004440] print_report+0x118/0x5e0 [ 24.005025] kasan_report+0xc8/0x118 [ 24.005561] __kasan_check_byte+0x54/0x70 [ 24.006192] krealloc_noprof+0x44/0x360 [ 24.006770] krealloc_uaf+0x180/0x520 [ 24.007336] kunit_try_run_case+0x14c/0x3d0 [ 24.008323] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.008998] kthread+0x24c/0x2d0 [ 24.009399] ret_from_fork+0x10/0x20 [ 24.010406] [ 24.010792] Allocated by task 152: [ 24.011353] kasan_save_stack+0x3c/0x68 [ 24.012212] kasan_save_track+0x20/0x40 [ 24.012811] kasan_save_alloc_info+0x40/0x58 [ 24.013482] __kasan_kmalloc+0xd4/0xd8 [ 24.014091] __kmalloc_cache_noprof+0x15c/0x3c0 [ 24.014733] krealloc_uaf+0xc8/0x520 [ 24.015343] kunit_try_run_case+0x14c/0x3d0 [ 24.016006] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.017427] kthread+0x24c/0x2d0 [ 24.017870] ret_from_fork+0x10/0x20 [ 24.018380] [ 24.018722] Freed by task 152: [ 24.019532] kasan_save_stack+0x3c/0x68 [ 24.020079] kasan_save_track+0x20/0x40 [ 24.020613] kasan_save_free_info+0x4c/0x78 [ 24.021176] __kasan_slab_free+0x6c/0x98 [ 24.021753] kfree+0x114/0x3c8 [ 24.022210] krealloc_uaf+0x12c/0x520 [ 24.022748] kunit_try_run_case+0x14c/0x3d0 [ 24.024037] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.024729] kthread+0x24c/0x2d0 [ 24.025238] ret_from_fork+0x10/0x20 [ 24.025795] [ 24.026143] The buggy address belongs to the object at fff00000c0973600 [ 24.026143] which belongs to the cache kmalloc-256 of size 256 [ 24.027517] The buggy address is located 0 bytes inside of [ 24.027517] freed 256-byte region [fff00000c0973600, fff00000c0973700) [ 24.029198] [ 24.029428] The buggy address belongs to the physical page: [ 24.030181] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100972 [ 24.031647] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 24.032786] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 24.033523] page_type: f5(slab) [ 24.034062] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 24.035269] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.036017] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 24.036901] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.037808] head: 0bfffe0000000001 ffffc1ffc3025c81 ffffffffffffffff 0000000000000000 [ 24.038650] head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 [ 24.040087] page dumped because: kasan: bad access detected [ 24.040721] [ 24.041041] Memory state around the buggy address: [ 24.041635] fff00000c0973500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.042436] fff00000c0973580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.043634] >fff00000c0973600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.044534] ^ [ 24.045154] fff00000c0973680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.046195] fff00000c0973700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.047950] ================================================================== [ 24.051410] ================================================================== [ 24.052269] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x4c8/0x520 [ 24.052933] Read of size 1 at addr fff00000c0973600 by task kunit_try_catch/152 [ 24.053535] [ 24.053938] CPU: 0 UID: 0 PID: 152 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 24.055123] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.055833] Hardware name: linux,dummy-virt (DT) [ 24.057181] Call trace: [ 24.057613] show_stack+0x20/0x38 (C) [ 24.058284] dump_stack_lvl+0x8c/0xd0 [ 24.059193] print_report+0x118/0x5e0 [ 24.059662] kasan_report+0xc8/0x118 [ 24.060084] __asan_report_load1_noabort+0x20/0x30 [ 24.060579] krealloc_uaf+0x4c8/0x520 [ 24.061454] kunit_try_run_case+0x14c/0x3d0 [ 24.062027] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.062799] kthread+0x24c/0x2d0 [ 24.063651] ret_from_fork+0x10/0x20 [ 24.064100] [ 24.064503] Allocated by task 152: [ 24.065285] kasan_save_stack+0x3c/0x68 [ 24.065870] kasan_save_track+0x20/0x40 [ 24.066409] kasan_save_alloc_info+0x40/0x58 [ 24.067027] __kasan_kmalloc+0xd4/0xd8 [ 24.067569] __kmalloc_cache_noprof+0x15c/0x3c0 [ 24.068566] krealloc_uaf+0xc8/0x520 [ 24.069121] kunit_try_run_case+0x14c/0x3d0 [ 24.069686] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.070368] kthread+0x24c/0x2d0 [ 24.070936] ret_from_fork+0x10/0x20 [ 24.072070] [ 24.072390] Freed by task 152: [ 24.072858] kasan_save_stack+0x3c/0x68 [ 24.073387] kasan_save_track+0x20/0x40 [ 24.073964] kasan_save_free_info+0x4c/0x78 [ 24.074523] __kasan_slab_free+0x6c/0x98 [ 24.075149] kfree+0x114/0x3c8 [ 24.075597] krealloc_uaf+0x12c/0x520 [ 24.076113] kunit_try_run_case+0x14c/0x3d0 [ 24.076652] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 24.077725] kthread+0x24c/0x2d0 [ 24.078208] ret_from_fork+0x10/0x20 [ 24.078753] [ 24.079082] The buggy address belongs to the object at fff00000c0973600 [ 24.079082] which belongs to the cache kmalloc-256 of size 256 [ 24.081009] The buggy address is located 0 bytes inside of [ 24.081009] freed 256-byte region [fff00000c0973600, fff00000c0973700) [ 24.082166] [ 24.082479] The buggy address belongs to the physical page: [ 24.083441] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x100972 [ 24.084165] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 24.084972] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 24.085799] page_type: f5(slab) [ 24.086233] raw: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 24.087887] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.088603] head: 0bfffe0000000040 fff00000c0001b40 dead000000000122 0000000000000000 [ 24.089471] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.090365] head: 0bfffe0000000001 ffffc1ffc3025c81 ffffffffffffffff 0000000000000000 [ 24.091428] head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 [ 24.092575] page dumped because: kasan: bad access detected [ 24.093455] [ 24.093762] Memory state around the buggy address: [ 24.094291] fff00000c0973500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.095203] fff00000c0973580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.096239] >fff00000c0973600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.097255] ^ [ 24.097888] fff00000c0973680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.098762] fff00000c0973700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.099798] ==================================================================
[ 23.905690] ================================================================== [ 23.906764] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x53e/0x5e0 [ 23.907319] Read of size 1 at addr ffff8881003a0800 by task kunit_try_catch/171 [ 23.908217] [ 23.908427] CPU: 0 UID: 0 PID: 171 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 23.909657] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.910240] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.910798] Call Trace: [ 23.911687] <TASK> [ 23.912072] dump_stack_lvl+0x73/0xb0 [ 23.912714] print_report+0xd1/0x640 [ 23.913118] ? __virt_addr_valid+0x1db/0x2d0 [ 23.913715] ? kasan_complete_mode_report_info+0x64/0x200 [ 23.914468] kasan_report+0x102/0x140 [ 23.914754] ? krealloc_uaf+0x53e/0x5e0 [ 23.915684] ? krealloc_uaf+0x53e/0x5e0 [ 23.916547] __asan_report_load1_noabort+0x18/0x20 [ 23.916949] krealloc_uaf+0x53e/0x5e0 [ 23.918061] ? __pfx_krealloc_uaf+0x10/0x10 [ 23.918861] ? finish_task_switch.isra.0+0x153/0x700 [ 23.919788] ? __switch_to+0x5d9/0xf60 [ 23.920197] ? __schedule+0xc70/0x27e0 [ 23.920698] ? __pfx_read_tsc+0x10/0x10 [ 23.921130] ? ktime_get_ts64+0x86/0x230 [ 23.921572] kunit_try_run_case+0x1b3/0x490 [ 23.922040] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.922556] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 23.923074] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.924155] ? __kthread_parkme+0x82/0x160 [ 23.924501] ? preempt_count_sub+0x50/0x80 [ 23.925098] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.925798] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.926410] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.926917] kthread+0x257/0x310 [ 23.927809] ? __pfx_kthread+0x10/0x10 [ 23.928355] ret_from_fork+0x41/0x80 [ 23.928676] ? __pfx_kthread+0x10/0x10 [ 23.929327] ret_from_fork_asm+0x1a/0x30 [ 23.929720] </TASK> [ 23.930360] [ 23.930535] Allocated by task 171: [ 23.930967] kasan_save_stack+0x3d/0x60 [ 23.931337] kasan_save_track+0x18/0x40 [ 23.931759] kasan_save_alloc_info+0x3b/0x50 [ 23.932192] __kasan_kmalloc+0xb7/0xc0 [ 23.932562] __kmalloc_cache_noprof+0x184/0x410 [ 23.933830] krealloc_uaf+0xbc/0x5e0 [ 23.934274] kunit_try_run_case+0x1b3/0x490 [ 23.934606] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.935391] kthread+0x257/0x310 [ 23.935783] ret_from_fork+0x41/0x80 [ 23.936356] ret_from_fork_asm+0x1a/0x30 [ 23.936776] [ 23.937049] Freed by task 171: [ 23.937916] kasan_save_stack+0x3d/0x60 [ 23.938218] kasan_save_track+0x18/0x40 [ 23.938737] kasan_save_free_info+0x3f/0x60 [ 23.939446] __kasan_slab_free+0x56/0x70 [ 23.939780] kfree+0x123/0x3f0 [ 23.940179] krealloc_uaf+0x13e/0x5e0 [ 23.940663] kunit_try_run_case+0x1b3/0x490 [ 23.941320] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.942241] kthread+0x257/0x310 [ 23.942711] ret_from_fork+0x41/0x80 [ 23.943165] ret_from_fork_asm+0x1a/0x30 [ 23.943698] [ 23.944015] The buggy address belongs to the object at ffff8881003a0800 [ 23.944015] which belongs to the cache kmalloc-256 of size 256 [ 23.944842] The buggy address is located 0 bytes inside of [ 23.944842] freed 256-byte region [ffff8881003a0800, ffff8881003a0900) [ 23.945950] [ 23.946151] The buggy address belongs to the physical page: [ 23.946613] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1003a0 [ 23.949100] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 23.949976] flags: 0x200000000000040(head|node=0|zone=2) [ 23.950804] page_type: f5(slab) [ 23.951085] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 23.952384] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.953389] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 23.954551] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.955587] head: 0200000000000001 ffffea000400e801 ffffffffffffffff 0000000000000000 [ 23.956438] head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 [ 23.957686] page dumped because: kasan: bad access detected [ 23.958678] [ 23.958919] Memory state around the buggy address: [ 23.959821] ffff8881003a0700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.961051] ffff8881003a0780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.961698] >ffff8881003a0800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.963006] ^ [ 23.964036] ffff8881003a0880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.964888] ffff8881003a0900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.965485] ================================================================== [ 23.834931] ================================================================== [ 23.836972] BUG: KASAN: slab-use-after-free in krealloc_uaf+0x1b9/0x5e0 [ 23.838154] Read of size 1 at addr ffff8881003a0800 by task kunit_try_catch/171 [ 23.838828] [ 23.839063] CPU: 0 UID: 0 PID: 171 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc2-next-20241209 #1 [ 23.841107] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.841772] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 23.843043] Call Trace: [ 23.843607] <TASK> [ 23.844120] dump_stack_lvl+0x73/0xb0 [ 23.845278] print_report+0xd1/0x640 [ 23.845665] ? __virt_addr_valid+0x1db/0x2d0 [ 23.846641] ? kasan_complete_mode_report_info+0x64/0x200 [ 23.847193] kasan_report+0x102/0x140 [ 23.848193] ? krealloc_uaf+0x1b9/0x5e0 [ 23.849058] ? krealloc_uaf+0x1b9/0x5e0 [ 23.849859] ? krealloc_uaf+0x1b9/0x5e0 [ 23.850476] __kasan_check_byte+0x3d/0x50 [ 23.851203] krealloc_noprof+0x3f/0x340 [ 23.852235] krealloc_uaf+0x1b9/0x5e0 [ 23.852885] ? __pfx_krealloc_uaf+0x10/0x10 [ 23.853387] ? finish_task_switch.isra.0+0x153/0x700 [ 23.854275] ? __switch_to+0x5d9/0xf60 [ 23.854731] ? __schedule+0xc70/0x27e0 [ 23.855579] ? __pfx_read_tsc+0x10/0x10 [ 23.856481] ? ktime_get_ts64+0x86/0x230 [ 23.856991] kunit_try_run_case+0x1b3/0x490 [ 23.857732] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.858620] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 23.859423] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 23.860104] ? __kthread_parkme+0x82/0x160 [ 23.861287] ? preempt_count_sub+0x50/0x80 [ 23.861743] ? __pfx_kunit_try_run_case+0x10/0x10 [ 23.862768] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 23.863687] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.865013] kthread+0x257/0x310 [ 23.865653] ? __pfx_kthread+0x10/0x10 [ 23.866444] ret_from_fork+0x41/0x80 [ 23.867029] ? __pfx_kthread+0x10/0x10 [ 23.867499] ret_from_fork_asm+0x1a/0x30 [ 23.868598] </TASK> [ 23.868886] [ 23.869066] Allocated by task 171: [ 23.869851] kasan_save_stack+0x3d/0x60 [ 23.870253] kasan_save_track+0x18/0x40 [ 23.870558] kasan_save_alloc_info+0x3b/0x50 [ 23.871717] __kasan_kmalloc+0xb7/0xc0 [ 23.872498] __kmalloc_cache_noprof+0x184/0x410 [ 23.872927] krealloc_uaf+0xbc/0x5e0 [ 23.873285] kunit_try_run_case+0x1b3/0x490 [ 23.873893] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.874651] kthread+0x257/0x310 [ 23.875578] ret_from_fork+0x41/0x80 [ 23.876553] ret_from_fork_asm+0x1a/0x30 [ 23.877070] [ 23.877652] Freed by task 171: [ 23.878098] kasan_save_stack+0x3d/0x60 [ 23.878930] kasan_save_track+0x18/0x40 [ 23.879657] kasan_save_free_info+0x3f/0x60 [ 23.880814] __kasan_slab_free+0x56/0x70 [ 23.881755] kfree+0x123/0x3f0 [ 23.882476] krealloc_uaf+0x13e/0x5e0 [ 23.883903] kunit_try_run_case+0x1b3/0x490 [ 23.884172] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 23.884548] kthread+0x257/0x310 [ 23.885246] ret_from_fork+0x41/0x80 [ 23.885721] ret_from_fork_asm+0x1a/0x30 [ 23.886108] [ 23.886340] The buggy address belongs to the object at ffff8881003a0800 [ 23.886340] which belongs to the cache kmalloc-256 of size 256 [ 23.888843] The buggy address is located 0 bytes inside of [ 23.888843] freed 256-byte region [ffff8881003a0800, ffff8881003a0900) [ 23.889765] [ 23.890138] The buggy address belongs to the physical page: [ 23.890606] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1003a0 [ 23.891284] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 23.892020] flags: 0x200000000000040(head|node=0|zone=2) [ 23.892583] page_type: f5(slab) [ 23.893007] raw: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 23.893782] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.894369] head: 0200000000000040 ffff888100041b40 dead000000000122 0000000000000000 [ 23.895118] head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 23.896667] head: 0200000000000001 ffffea000400e801 ffffffffffffffff 0000000000000000 [ 23.897522] head: 0000000000000002 0000000000000000 00000000ffffffff 0000000000000000 [ 23.898040] page dumped because: kasan: bad access detected [ 23.898601] [ 23.898832] Memory state around the buggy address: [ 23.899341] ffff8881003a0700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.900566] ffff8881003a0780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.901356] >ffff8881003a0800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.902132] ^ [ 23.902523] ffff8881003a0880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.903112] ffff8881003a0900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.904258] ==================================================================