Date
Dec. 3, 2024, 11:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.848512] ================================================================== [ 30.849869] BUG: KASAN: slab-use-after-free in kmalloc_uaf_memset+0x170/0x310 [ 30.850914] Write of size 33 at addr fff00000c590c280 by task kunit_try_catch/175 [ 30.853300] [ 30.853626] CPU: 1 UID: 0 PID: 175 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 30.855656] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.856672] Hardware name: linux,dummy-virt (DT) [ 30.857432] Call trace: [ 30.857856] show_stack+0x20/0x38 (C) [ 30.858555] dump_stack_lvl+0x8c/0xd0 [ 30.859164] print_report+0x118/0x5e0 [ 30.859827] kasan_report+0xc8/0x118 [ 30.860499] kasan_check_range+0x100/0x1a8 [ 30.861183] __asan_memset+0x34/0x78 [ 30.862159] kmalloc_uaf_memset+0x170/0x310 [ 30.862713] kunit_try_run_case+0x14c/0x3d0 [ 30.863778] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.865210] kthread+0x24c/0x2d0 [ 30.865899] ret_from_fork+0x10/0x20 [ 30.866466] [ 30.866785] Allocated by task 175: [ 30.868211] kasan_save_stack+0x3c/0x68 [ 30.869133] kasan_save_track+0x20/0x40 [ 30.869943] kasan_save_alloc_info+0x40/0x58 [ 30.870650] __kasan_kmalloc+0xd4/0xd8 [ 30.871578] __kmalloc_cache_noprof+0x15c/0x3c0 [ 30.872650] kmalloc_uaf_memset+0xb8/0x310 [ 30.873271] kunit_try_run_case+0x14c/0x3d0 [ 30.874226] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.875212] kthread+0x24c/0x2d0 [ 30.875714] ret_from_fork+0x10/0x20 [ 30.877000] [ 30.877562] Freed by task 175: [ 30.878044] kasan_save_stack+0x3c/0x68 [ 30.878615] kasan_save_track+0x20/0x40 [ 30.879863] kasan_save_free_info+0x4c/0x78 [ 30.880413] __kasan_slab_free+0x6c/0x98 [ 30.881244] kfree+0x114/0x3c8 [ 30.881911] kmalloc_uaf_memset+0x11c/0x310 [ 30.882690] kunit_try_run_case+0x14c/0x3d0 [ 30.883558] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.884555] kthread+0x24c/0x2d0 [ 30.885233] ret_from_fork+0x10/0x20 [ 30.885673] [ 30.885925] The buggy address belongs to the object at fff00000c590c280 [ 30.885925] which belongs to the cache kmalloc-64 of size 64 [ 30.886836] The buggy address is located 0 bytes inside of [ 30.886836] freed 64-byte region [fff00000c590c280, fff00000c590c2c0) [ 30.889298] [ 30.889713] The buggy address belongs to the physical page: [ 30.890404] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10590c [ 30.891812] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.893198] page_type: f5(slab) [ 30.894257] raw: 0bfffe0000000000 fff00000c00018c0 dead000000000122 0000000000000000 [ 30.894930] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 30.896771] page dumped because: kasan: bad access detected [ 30.897552] [ 30.897921] Memory state around the buggy address: [ 30.898727] fff00000c590c180: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 30.899744] fff00000c590c200: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 30.901381] >fff00000c590c280: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 30.902865] ^ [ 30.903553] fff00000c590c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.904297] fff00000c590c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.905138] ==================================================================
[ 26.413418] ================================================================== [ 26.414464] BUG: KASAN: slab-use-after-free in kmalloc_uaf_memset+0x1a4/0x360 [ 26.414992] Write of size 33 at addr ffff888102a12480 by task kunit_try_catch/195 [ 26.415946] [ 26.416218] CPU: 1 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 26.417293] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.418035] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.419133] Call Trace: [ 26.419322] <TASK> [ 26.419486] dump_stack_lvl+0x73/0xb0 [ 26.419778] print_report+0xd1/0x640 [ 26.420720] ? __virt_addr_valid+0x1db/0x2d0 [ 26.421024] ? kasan_complete_mode_report_info+0x64/0x200 [ 26.421690] kasan_report+0x102/0x140 [ 26.422391] ? kmalloc_uaf_memset+0x1a4/0x360 [ 26.422667] ? kmalloc_uaf_memset+0x1a4/0x360 [ 26.423121] kasan_check_range+0x10c/0x1c0 [ 26.423426] __asan_memset+0x27/0x50 [ 26.423811] kmalloc_uaf_memset+0x1a4/0x360 [ 26.424173] ? __pfx_kmalloc_uaf_memset+0x10/0x10 [ 26.424756] ? __schedule+0xc3e/0x2790 [ 26.425115] ? __pfx_read_tsc+0x10/0x10 [ 26.425381] ? ktime_get_ts64+0x86/0x230 [ 26.425899] kunit_try_run_case+0x1b3/0x490 [ 26.426337] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.426916] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.427372] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.427793] ? __kthread_parkme+0x82/0x160 [ 26.428286] ? preempt_count_sub+0x50/0x80 [ 26.428686] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.429124] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.429505] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.430018] kthread+0x257/0x310 [ 26.430367] ? __pfx_kthread+0x10/0x10 [ 26.430773] ret_from_fork+0x41/0x80 [ 26.431032] ? __pfx_kthread+0x10/0x10 [ 26.431932] ret_from_fork_asm+0x1a/0x30 [ 26.432860] </TASK> [ 26.433142] [ 26.433346] Allocated by task 195: [ 26.434251] kasan_save_stack+0x3d/0x60 [ 26.434815] kasan_save_track+0x18/0x40 [ 26.435211] kasan_save_alloc_info+0x3b/0x50 [ 26.435526] __kasan_kmalloc+0xb7/0xc0 [ 26.435941] __kmalloc_cache_noprof+0x184/0x410 [ 26.436382] kmalloc_uaf_memset+0xaa/0x360 [ 26.436966] kunit_try_run_case+0x1b3/0x490 [ 26.437391] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.438034] kthread+0x257/0x310 [ 26.438341] ret_from_fork+0x41/0x80 [ 26.439358] ret_from_fork_asm+0x1a/0x30 [ 26.439708] [ 26.439884] Freed by task 195: [ 26.440288] kasan_save_stack+0x3d/0x60 [ 26.440882] kasan_save_track+0x18/0x40 [ 26.441248] kasan_save_free_info+0x3f/0x60 [ 26.441568] __kasan_slab_free+0x56/0x70 [ 26.442102] kfree+0x123/0x3f0 [ 26.442473] kmalloc_uaf_memset+0x12c/0x360 [ 26.443017] kunit_try_run_case+0x1b3/0x490 [ 26.443478] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.444710] kthread+0x257/0x310 [ 26.444963] ret_from_fork+0x41/0x80 [ 26.445260] ret_from_fork_asm+0x1a/0x30 [ 26.445649] [ 26.445843] The buggy address belongs to the object at ffff888102a12480 [ 26.445843] which belongs to the cache kmalloc-64 of size 64 [ 26.447030] The buggy address is located 0 bytes inside of [ 26.447030] freed 64-byte region [ffff888102a12480, ffff888102a124c0) [ 26.447946] [ 26.448117] The buggy address belongs to the physical page: [ 26.448735] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a12 [ 26.449389] flags: 0x200000000000000(node=0|zone=2) [ 26.450468] page_type: f5(slab) [ 26.450705] raw: 0200000000000000 ffff8881000418c0 dead000000000122 0000000000000000 [ 26.451472] raw: 0000000000000000 0000000080200020 00000000f5000000 0000000000000000 [ 26.452266] page dumped because: kasan: bad access detected [ 26.452850] [ 26.453069] Memory state around the buggy address: [ 26.453343] ffff888102a12380: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 26.453994] ffff888102a12400: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 26.455313] >ffff888102a12480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 26.455915] ^ [ 26.456194] ffff888102a12500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.456766] ffff888102a12580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.457349] ==================================================================