ghsa-9pfj-cx2g-pfp8
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btrtl: fix out of bounds memory access
The problem is detected by KASAN. btrtl driver uses private hci data to store 'struct btrealtek_data'. If btrtl driver is used with btusb, then memory for private hci data is allocated in btusb. But no private data is allocated after hci_dev, when btrtl is used with hci_h5.
This commit adds memory allocation for hci_h5 case.
================================================================== BUG: KASAN: slab-out-of-bounds in btrtl_initialize+0x6cc/0x958 [btrtl] Write of size 8 at addr ffff00000f5a5748 by task kworker/u9:0/76
Hardware name: Pine64 PinePhone (1.2) (DT) Workqueue: hci0 hci_power_on [bluetooth] Call trace: dump_backtrace+0x9c/0x128 show_stack+0x20/0x38 dump_stack_lvl+0x48/0x60 print_report+0xf8/0x5d8 kasan_report+0x90/0xd0 __asan_store8+0x9c/0xc0 [btrtl] h5_btrtl_setup+0xd0/0x2f8 [hci_uart] h5_setup+0x50/0x80 [hci_uart] hci_uart_setup+0xd4/0x260 [hci_uart] hci_dev_open_sync+0x1cc/0xf68 [bluetooth] hci_dev_do_open+0x34/0x90 [bluetooth] hci_power_on+0xc4/0x3c8 [bluetooth] process_one_work+0x328/0x6f0 worker_thread+0x410/0x778 kthread+0x168/0x178 ret_from_fork+0x10/0x20
Allocated by task 53: kasan_save_stack+0x3c/0x68 kasan_save_track+0x20/0x40 kasan_save_alloc_info+0x68/0x78 __kasan_kmalloc+0xd4/0xd8 __kmalloc+0x1b4/0x3b0 hci_alloc_dev_priv+0x28/0xa58 [bluetooth] hci_uart_register_device+0x118/0x4f8 [hci_uart] h5_serdev_probe+0xf4/0x178 [hci_uart] serdev_drv_probe+0x54/0xa0 really_probe+0x254/0x588 __driver_probe_device+0xc4/0x210 driver_probe_device+0x64/0x160 __driver_attach_async_helper+0x88/0x158 async_run_entry_fn+0xd0/0x388 process_one_work+0x328/0x6f0 worker_thread+0x410/0x778 kthread+0x168/0x178 ret_from_fork+0x10/0x20
Last potentially related work creation: kasan_save_stack+0x3c/0x68 __kasan_record_aux_stack+0xb0/0x150 kasan_record_aux_stack_noalloc+0x14/0x20 __queue_work+0x33c/0x960 queue_work_on+0x98/0xc0 hci_recv_frame+0xc8/0x1e8 [bluetooth] h5_complete_rx_pkt+0x2c8/0x800 [hci_uart] h5_rx_payload+0x98/0xb8 [hci_uart] h5_recv+0x158/0x3d8 [hci_uart] hci_uart_receive_buf+0xa0/0xe8 [hci_uart] ttyport_receive_buf+0xac/0x178 flush_to_ldisc+0x130/0x2c8 process_one_work+0x328/0x6f0 worker_thread+0x410/0x778 kthread+0x168/0x178 ret_from_fork+0x10/0x20
Second to last potentially related work creation: kasan_save_stack+0x3c/0x68 __kasan_record_aux_stack+0xb0/0x150 kasan_record_aux_stack_noalloc+0x14/0x20 __queue_work+0x788/0x960 queue_work_on+0x98/0xc0 __hci_cmd_sync_sk+0x23c/0x7a0 [bluetooth] __hci_cmd_sync+0x24/0x38 [bluetooth] btrtl_initialize+0x760/0x958 [btrtl] h5_btrtl_setup+0xd0/0x2f8 [hci_uart] h5_setup+0x50/0x80 [hci_uart] hci_uart_setup+0xd4/0x260 [hci_uart] hci_dev_open_sync+0x1cc/0xf68 [bluetooth] hci_dev_do_open+0x34/0x90 [bluetooth] hci_power_on+0xc4/0x3c8 [bluetooth] process_one_work+0x328/0x6f0 worker_thread+0x410/0x778 kthread+0x168/0x178 ret_from_fork+0x10/0x20 ==================================================================
{
"affected": [],
"aliases": [
"CVE-2024-26890"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-17T11:15:10Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btrtl: fix out of bounds memory access\n\nThe problem is detected by KASAN.\nbtrtl driver uses private hci data to store \u0027struct btrealtek_data\u0027.\nIf btrtl driver is used with btusb, then memory for private hci data\nis allocated in btusb. But no private data is allocated after hci_dev,\nwhen btrtl is used with hci_h5.\n\nThis commit adds memory allocation for hci_h5 case.\n\n ==================================================================\n BUG: KASAN: slab-out-of-bounds in btrtl_initialize+0x6cc/0x958 [btrtl]\n Write of size 8 at addr ffff00000f5a5748 by task kworker/u9:0/76\n\n Hardware name: Pine64 PinePhone (1.2) (DT)\n Workqueue: hci0 hci_power_on [bluetooth]\n Call trace:\n dump_backtrace+0x9c/0x128\n show_stack+0x20/0x38\n dump_stack_lvl+0x48/0x60\n print_report+0xf8/0x5d8\n kasan_report+0x90/0xd0\n __asan_store8+0x9c/0xc0\n \t [btrtl]\n h5_btrtl_setup+0xd0/0x2f8 [hci_uart]\n h5_setup+0x50/0x80 [hci_uart]\n hci_uart_setup+0xd4/0x260 [hci_uart]\n hci_dev_open_sync+0x1cc/0xf68 [bluetooth]\n hci_dev_do_open+0x34/0x90 [bluetooth]\n hci_power_on+0xc4/0x3c8 [bluetooth]\n process_one_work+0x328/0x6f0\n worker_thread+0x410/0x778\n kthread+0x168/0x178\n ret_from_fork+0x10/0x20\n\n Allocated by task 53:\n kasan_save_stack+0x3c/0x68\n kasan_save_track+0x20/0x40\n kasan_save_alloc_info+0x68/0x78\n __kasan_kmalloc+0xd4/0xd8\n __kmalloc+0x1b4/0x3b0\n hci_alloc_dev_priv+0x28/0xa58 [bluetooth]\n hci_uart_register_device+0x118/0x4f8 [hci_uart]\n h5_serdev_probe+0xf4/0x178 [hci_uart]\n serdev_drv_probe+0x54/0xa0\n really_probe+0x254/0x588\n __driver_probe_device+0xc4/0x210\n driver_probe_device+0x64/0x160\n __driver_attach_async_helper+0x88/0x158\n async_run_entry_fn+0xd0/0x388\n process_one_work+0x328/0x6f0\n worker_thread+0x410/0x778\n kthread+0x168/0x178\n ret_from_fork+0x10/0x20\n\n Last potentially related work creation:\n kasan_save_stack+0x3c/0x68\n __kasan_record_aux_stack+0xb0/0x150\n kasan_record_aux_stack_noalloc+0x14/0x20\n __queue_work+0x33c/0x960\n queue_work_on+0x98/0xc0\n hci_recv_frame+0xc8/0x1e8 [bluetooth]\n h5_complete_rx_pkt+0x2c8/0x800 [hci_uart]\n h5_rx_payload+0x98/0xb8 [hci_uart]\n h5_recv+0x158/0x3d8 [hci_uart]\n hci_uart_receive_buf+0xa0/0xe8 [hci_uart]\n ttyport_receive_buf+0xac/0x178\n flush_to_ldisc+0x130/0x2c8\n process_one_work+0x328/0x6f0\n worker_thread+0x410/0x778\n kthread+0x168/0x178\n ret_from_fork+0x10/0x20\n\n Second to last potentially related work creation:\n kasan_save_stack+0x3c/0x68\n __kasan_record_aux_stack+0xb0/0x150\n kasan_record_aux_stack_noalloc+0x14/0x20\n __queue_work+0x788/0x960\n queue_work_on+0x98/0xc0\n __hci_cmd_sync_sk+0x23c/0x7a0 [bluetooth]\n __hci_cmd_sync+0x24/0x38 [bluetooth]\n btrtl_initialize+0x760/0x958 [btrtl]\n h5_btrtl_setup+0xd0/0x2f8 [hci_uart]\n h5_setup+0x50/0x80 [hci_uart]\n hci_uart_setup+0xd4/0x260 [hci_uart]\n hci_dev_open_sync+0x1cc/0xf68 [bluetooth]\n hci_dev_do_open+0x34/0x90 [bluetooth]\n hci_power_on+0xc4/0x3c8 [bluetooth]\n process_one_work+0x328/0x6f0\n worker_thread+0x410/0x778\n kthread+0x168/0x178\n ret_from_fork+0x10/0x20\n ==================================================================",
"id": "GHSA-9pfj-cx2g-pfp8",
"modified": "2024-04-17T12:32:05Z",
"published": "2024-04-17T12:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26890"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0c657e641df1e77d6087688190f632cad9c0439b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2f232bc389a4f5943c40733582f9edf77b89e499"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dd163fa34c483f1674aa2510accce11a224f649e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/de4e88ec58c4202efd1f02eebb4939bbf6945358"
}
],
"schema_version": "1.4.0",
"severity": []
}