Date
May 12, 2025, 11:48 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.848995] ================================================================== [ 18.849411] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 18.849482] Read of size 1 at addr fff00000c6bb4240 by task kunit_try_catch/231 [ 18.849532] [ 18.849564] CPU: 0 UID: 0 PID: 231 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT [ 18.849647] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.849672] Hardware name: linux,dummy-virt (DT) [ 18.849703] Call trace: [ 18.853046] show_stack+0x20/0x38 (C) [ 18.853129] dump_stack_lvl+0x8c/0xd0 [ 18.853177] print_report+0x118/0x608 [ 18.853223] kasan_report+0xdc/0x128 [ 18.853264] __asan_report_load1_noabort+0x20/0x30 [ 18.853330] mempool_uaf_helper+0x314/0x340 [ 18.853432] mempool_slab_uaf+0xc0/0x118 [ 18.853478] kunit_try_run_case+0x170/0x3f0 [ 18.853524] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.853574] kthread+0x328/0x630 [ 18.853614] ret_from_fork+0x10/0x20 [ 18.853661] [ 18.853716] Allocated by task 231: [ 18.853752] kasan_save_stack+0x3c/0x68 [ 18.853843] kasan_save_track+0x20/0x40 [ 18.853879] kasan_save_alloc_info+0x40/0x58 [ 18.854059] __kasan_mempool_unpoison_object+0xbc/0x180 [ 18.854104] remove_element+0x16c/0x1f8 [ 18.854142] mempool_alloc_preallocated+0x58/0xc0 [ 18.854182] mempool_uaf_helper+0xa4/0x340 [ 18.854215] mempool_slab_uaf+0xc0/0x118 [ 18.854269] kunit_try_run_case+0x170/0x3f0 [ 18.854303] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.854352] kthread+0x328/0x630 [ 18.854391] ret_from_fork+0x10/0x20 [ 18.854425] [ 18.854616] Freed by task 231: [ 18.854656] kasan_save_stack+0x3c/0x68 [ 18.854729] kasan_save_track+0x20/0x40 [ 18.854764] kasan_save_free_info+0x4c/0x78 [ 18.854803] __kasan_mempool_poison_object+0xc0/0x150 [ 18.854842] mempool_free+0x28c/0x328 [ 18.854878] mempool_uaf_helper+0x104/0x340 [ 18.854913] mempool_slab_uaf+0xc0/0x118 [ 18.854946] kunit_try_run_case+0x170/0x3f0 [ 18.854980] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.855019] kthread+0x328/0x630 [ 18.855064] ret_from_fork+0x10/0x20 [ 18.855102] [ 18.855133] The buggy address belongs to the object at fff00000c6bb4240 [ 18.855133] which belongs to the cache test_cache of size 123 [ 18.855195] The buggy address is located 0 bytes inside of [ 18.855195] freed 123-byte region [fff00000c6bb4240, fff00000c6bb42bb) [ 18.855322] [ 18.855344] The buggy address belongs to the physical page: [ 18.855374] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106bb4 [ 18.855424] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.855470] page_type: f5(slab) [ 18.855509] raw: 0bfffe0000000000 fff00000c5d1e3c0 dead000000000122 0000000000000000 [ 18.855567] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 18.855611] page dumped because: kasan: bad access detected [ 18.855653] [ 18.855673] Memory state around the buggy address: [ 18.855703] fff00000c6bb4100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.855745] fff00000c6bb4180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.855834] >fff00000c6bb4200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 18.855868] ^ [ 18.855916] fff00000c6bb4280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.856015] fff00000c6bb4300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.856064] ================================================================== [ 18.823479] ================================================================== [ 18.823549] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x314/0x340 [ 18.823613] Read of size 1 at addr fff00000c6370f00 by task kunit_try_catch/227 [ 18.823663] [ 18.823699] CPU: 0 UID: 0 PID: 227 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT [ 18.823782] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.823809] Hardware name: linux,dummy-virt (DT) [ 18.823840] Call trace: [ 18.823878] show_stack+0x20/0x38 (C) [ 18.823927] dump_stack_lvl+0x8c/0xd0 [ 18.823977] print_report+0x118/0x608 [ 18.824020] kasan_report+0xdc/0x128 [ 18.824078] __asan_report_load1_noabort+0x20/0x30 [ 18.824126] mempool_uaf_helper+0x314/0x340 [ 18.824170] mempool_kmalloc_uaf+0xc4/0x120 [ 18.824213] kunit_try_run_case+0x170/0x3f0 [ 18.824259] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.824305] kthread+0x328/0x630 [ 18.824349] ret_from_fork+0x10/0x20 [ 18.824395] [ 18.824413] Allocated by task 227: [ 18.824442] kasan_save_stack+0x3c/0x68 [ 18.824483] kasan_save_track+0x20/0x40 [ 18.824519] kasan_save_alloc_info+0x40/0x58 [ 18.824557] __kasan_mempool_unpoison_object+0x11c/0x180 [ 18.824598] remove_element+0x130/0x1f8 [ 18.824633] mempool_alloc_preallocated+0x58/0xc0 [ 18.824672] mempool_uaf_helper+0xa4/0x340 [ 18.824706] mempool_kmalloc_uaf+0xc4/0x120 [ 18.824741] kunit_try_run_case+0x170/0x3f0 [ 18.824775] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.824815] kthread+0x328/0x630 [ 18.824848] ret_from_fork+0x10/0x20 [ 18.824883] [ 18.824908] Freed by task 227: [ 18.824969] kasan_save_stack+0x3c/0x68 [ 18.825079] kasan_save_track+0x20/0x40 [ 18.825121] kasan_save_free_info+0x4c/0x78 [ 18.825159] __kasan_mempool_poison_object+0xc0/0x150 [ 18.825427] mempool_free+0x28c/0x328 [ 18.825464] mempool_uaf_helper+0x104/0x340 [ 18.825499] mempool_kmalloc_uaf+0xc4/0x120 [ 18.825621] kunit_try_run_case+0x170/0x3f0 [ 18.825729] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.825776] kthread+0x328/0x630 [ 18.825972] ret_from_fork+0x10/0x20 [ 18.826022] [ 18.826051] The buggy address belongs to the object at fff00000c6370f00 [ 18.826051] which belongs to the cache kmalloc-128 of size 128 [ 18.826275] The buggy address is located 0 bytes inside of [ 18.826275] freed 128-byte region [fff00000c6370f00, fff00000c6370f80) [ 18.826336] [ 18.826357] The buggy address belongs to the physical page: [ 18.826387] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106370 [ 18.826760] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.826829] page_type: f5(slab) [ 18.826871] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.826922] raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000 [ 18.826961] page dumped because: kasan: bad access detected [ 18.827009] [ 18.827079] Memory state around the buggy address: [ 18.827114] fff00000c6370e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.827158] fff00000c6370e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.827199] >fff00000c6370f00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.827236] ^ [ 18.827264] fff00000c6370f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.827305] fff00000c6371000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.827343] ==================================================================
[ 18.392848] ================================================================== [ 18.393421] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 18.393995] Read of size 1 at addr ffff888102306800 by task kunit_try_catch/244 [ 18.394533] [ 18.394719] CPU: 0 UID: 0 PID: 244 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT(voluntary) [ 18.394835] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.394863] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.394904] Call Trace: [ 18.394932] <TASK> [ 18.394972] dump_stack_lvl+0x73/0xb0 [ 18.395080] print_report+0xd1/0x650 [ 18.395128] ? __virt_addr_valid+0x1db/0x2d0 [ 18.395174] ? mempool_uaf_helper+0x392/0x400 [ 18.395221] ? kasan_complete_mode_report_info+0x64/0x200 [ 18.395316] ? mempool_uaf_helper+0x392/0x400 [ 18.395371] kasan_report+0x141/0x180 [ 18.395424] ? mempool_uaf_helper+0x392/0x400 [ 18.395485] __asan_report_load1_noabort+0x18/0x20 [ 18.395529] mempool_uaf_helper+0x392/0x400 [ 18.395574] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 18.395619] ? __pfx_sched_clock_cpu+0x10/0x10 [ 18.395694] ? finish_task_switch.isra.0+0x153/0x700 [ 18.395751] mempool_kmalloc_uaf+0xef/0x140 [ 18.395801] ? __pfx_mempool_kmalloc_uaf+0x10/0x10 [ 18.395847] ? __pfx_mempool_kmalloc+0x10/0x10 [ 18.395890] ? __pfx_mempool_kfree+0x10/0x10 [ 18.395936] ? __pfx_read_tsc+0x10/0x10 [ 18.395978] ? ktime_get_ts64+0x86/0x230 [ 18.396026] kunit_try_run_case+0x1a5/0x480 [ 18.396078] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.396122] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 18.396177] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 18.396225] ? __kthread_parkme+0x82/0x180 [ 18.396277] ? preempt_count_sub+0x50/0x80 [ 18.396324] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.396376] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.396421] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 18.396468] kthread+0x337/0x6f0 [ 18.396511] ? trace_preempt_on+0x20/0xc0 [ 18.396558] ? __pfx_kthread+0x10/0x10 [ 18.396585] ? _raw_spin_unlock_irq+0x47/0x80 [ 18.396610] ? calculate_sigpending+0x7b/0xa0 [ 18.396639] ? __pfx_kthread+0x10/0x10 [ 18.396688] ret_from_fork+0x116/0x1d0 [ 18.396737] ? __pfx_kthread+0x10/0x10 [ 18.396762] ret_from_fork_asm+0x1a/0x30 [ 18.396796] </TASK> [ 18.396812] [ 18.410487] Allocated by task 244: [ 18.410890] kasan_save_stack+0x45/0x70 [ 18.411404] kasan_save_track+0x18/0x40 [ 18.411732] kasan_save_alloc_info+0x3b/0x50 [ 18.412241] __kasan_mempool_unpoison_object+0x1a9/0x200 [ 18.412722] remove_element+0x11e/0x190 [ 18.412908] mempool_alloc_preallocated+0x4d/0x90 [ 18.413095] mempool_uaf_helper+0x96/0x400 [ 18.413285] mempool_kmalloc_uaf+0xef/0x140 [ 18.413528] kunit_try_run_case+0x1a5/0x480 [ 18.414548] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.415087] kthread+0x337/0x6f0 [ 18.415436] ret_from_fork+0x116/0x1d0 [ 18.415870] ret_from_fork_asm+0x1a/0x30 [ 18.416347] [ 18.416676] Freed by task 244: [ 18.416989] kasan_save_stack+0x45/0x70 [ 18.417195] kasan_save_track+0x18/0x40 [ 18.417518] kasan_save_free_info+0x3f/0x60 [ 18.417789] __kasan_mempool_poison_object+0x131/0x1d0 [ 18.418550] mempool_free+0x2ec/0x380 [ 18.419197] mempool_uaf_helper+0x11a/0x400 [ 18.419519] mempool_kmalloc_uaf+0xef/0x140 [ 18.419869] kunit_try_run_case+0x1a5/0x480 [ 18.420079] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.420904] kthread+0x337/0x6f0 [ 18.421194] ret_from_fork+0x116/0x1d0 [ 18.421566] ret_from_fork_asm+0x1a/0x30 [ 18.421991] [ 18.422176] The buggy address belongs to the object at ffff888102306800 [ 18.422176] which belongs to the cache kmalloc-128 of size 128 [ 18.423211] The buggy address is located 0 bytes inside of [ 18.423211] freed 128-byte region [ffff888102306800, ffff888102306880) [ 18.423898] [ 18.424102] The buggy address belongs to the physical page: [ 18.424744] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102306 [ 18.425056] flags: 0x200000000000000(node=0|zone=2) [ 18.425426] page_type: f5(slab) [ 18.425795] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 18.426247] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.426597] page dumped because: kasan: bad access detected [ 18.427032] [ 18.427159] Memory state around the buggy address: [ 18.427403] ffff888102306700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.427923] ffff888102306780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.428246] >ffff888102306800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.428598] ^ [ 18.428900] ffff888102306880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.429233] ffff888102306900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.429752] ================================================================== [ 18.470857] ================================================================== [ 18.471768] BUG: KASAN: slab-use-after-free in mempool_uaf_helper+0x392/0x400 [ 18.472110] Read of size 1 at addr ffff888102b61240 by task kunit_try_catch/248 [ 18.472414] [ 18.472554] CPU: 1 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT(voluntary) [ 18.472616] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.472630] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 18.472658] Call Trace: [ 18.472682] <TASK> [ 18.472710] dump_stack_lvl+0x73/0xb0 [ 18.472744] print_report+0xd1/0x650 [ 18.472770] ? __virt_addr_valid+0x1db/0x2d0 [ 18.472795] ? mempool_uaf_helper+0x392/0x400 [ 18.472819] ? kasan_complete_mode_report_info+0x64/0x200 [ 18.472845] ? mempool_uaf_helper+0x392/0x400 [ 18.472868] kasan_report+0x141/0x180 [ 18.472892] ? mempool_uaf_helper+0x392/0x400 [ 18.472920] __asan_report_load1_noabort+0x18/0x20 [ 18.472942] mempool_uaf_helper+0x392/0x400 [ 18.472967] ? __pfx_mempool_uaf_helper+0x10/0x10 [ 18.472994] ? __pfx_sched_clock_cpu+0x10/0x10 [ 18.473018] ? finish_task_switch.isra.0+0x153/0x700 [ 18.473045] mempool_slab_uaf+0xea/0x140 [ 18.473070] ? __pfx_mempool_slab_uaf+0x10/0x10 [ 18.473097] ? __pfx_mempool_alloc_slab+0x10/0x10 [ 18.473120] ? __pfx_mempool_free_slab+0x10/0x10 [ 18.473144] ? __pfx_read_tsc+0x10/0x10 [ 18.473166] ? ktime_get_ts64+0x86/0x230 [ 18.473191] kunit_try_run_case+0x1a5/0x480 [ 18.473217] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.473241] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 18.473735] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 18.473800] ? __kthread_parkme+0x82/0x180 [ 18.474188] ? preempt_count_sub+0x50/0x80 [ 18.474252] ? __pfx_kunit_try_run_case+0x10/0x10 [ 18.474319] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.474376] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 18.474427] kthread+0x337/0x6f0 [ 18.474458] ? trace_preempt_on+0x20/0xc0 [ 18.474487] ? __pfx_kthread+0x10/0x10 [ 18.474509] ? _raw_spin_unlock_irq+0x47/0x80 [ 18.474532] ? calculate_sigpending+0x7b/0xa0 [ 18.474558] ? __pfx_kthread+0x10/0x10 [ 18.474582] ret_from_fork+0x116/0x1d0 [ 18.474603] ? __pfx_kthread+0x10/0x10 [ 18.474625] ret_from_fork_asm+0x1a/0x30 [ 18.474661] </TASK> [ 18.474698] [ 18.489521] Allocated by task 248: [ 18.489790] kasan_save_stack+0x45/0x70 [ 18.490186] kasan_save_track+0x18/0x40 [ 18.490579] kasan_save_alloc_info+0x3b/0x50 [ 18.490823] __kasan_mempool_unpoison_object+0x1bb/0x200 [ 18.491314] remove_element+0x11e/0x190 [ 18.491555] mempool_alloc_preallocated+0x4d/0x90 [ 18.492582] mempool_uaf_helper+0x96/0x400 [ 18.493150] mempool_slab_uaf+0xea/0x140 [ 18.493497] kunit_try_run_case+0x1a5/0x480 [ 18.493714] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.494164] kthread+0x337/0x6f0 [ 18.494393] ret_from_fork+0x116/0x1d0 [ 18.494569] ret_from_fork_asm+0x1a/0x30 [ 18.494826] [ 18.495014] Freed by task 248: [ 18.495364] kasan_save_stack+0x45/0x70 [ 18.495591] kasan_save_track+0x18/0x40 [ 18.496557] kasan_save_free_info+0x3f/0x60 [ 18.496756] __kasan_mempool_poison_object+0x131/0x1d0 [ 18.497367] mempool_free+0x2ec/0x380 [ 18.497576] mempool_uaf_helper+0x11a/0x400 [ 18.498305] mempool_slab_uaf+0xea/0x140 [ 18.498572] kunit_try_run_case+0x1a5/0x480 [ 18.498754] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 18.499568] kthread+0x337/0x6f0 [ 18.499862] ret_from_fork+0x116/0x1d0 [ 18.500360] ret_from_fork_asm+0x1a/0x30 [ 18.500495] [ 18.500556] The buggy address belongs to the object at ffff888102b61240 [ 18.500556] which belongs to the cache test_cache of size 123 [ 18.501228] The buggy address is located 0 bytes inside of [ 18.501228] freed 123-byte region [ffff888102b61240, ffff888102b612bb) [ 18.502753] [ 18.502986] The buggy address belongs to the physical page: [ 18.503396] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b61 [ 18.504355] flags: 0x200000000000000(node=0|zone=2) [ 18.504589] page_type: f5(slab) [ 18.505272] raw: 0200000000000000 ffff888102b5a280 dead000000000122 0000000000000000 [ 18.505644] raw: 0000000000000000 0000000080150015 00000000f5000000 0000000000000000 [ 18.506367] page dumped because: kasan: bad access detected [ 18.506667] [ 18.507053] Memory state around the buggy address: [ 18.507267] ffff888102b61100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.507835] ffff888102b61180: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.508457] >ffff888102b61200: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb [ 18.508788] ^ [ 18.509008] ffff888102b61280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 18.509317] ffff888102b61300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.509778] ==================================================================