ghsa-3r4m-vx24-mm6m
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event
We should not access skb buffer data anymore after hci_recv_frame was called.
[ 39.634809] BUG: KASAN: use-after-free in btmtksdio_recv_event+0x1b0 [ 39.634855] Read of size 1 at addr ffffff80cf28a60d by task kworker [ 39.634962] Call trace: [ 39.634974] dump_backtrace+0x0/0x3b8 [ 39.634999] show_stack+0x20/0x2c [ 39.635016] dump_stack_lvl+0x60/0x78 [ 39.635040] print_address_description+0x70/0x2f0 [ 39.635062] kasan_report+0x154/0x194 [ 39.635079] __asan_report_load1_noabort+0x44/0x50 [ 39.635099] btmtksdio_recv_event+0x1b0/0x1c4 [ 39.635129] btmtksdio_txrx_work+0x6cc/0xac4 [ 39.635157] process_one_work+0x560/0xc5c [ 39.635177] worker_thread+0x7ec/0xcc0 [ 39.635195] kthread+0x2d0/0x3d0 [ 39.635215] ret_from_fork+0x10/0x20 [ 39.635247] Allocated by task 0: [ 39.635260] (stack is not available) [ 39.635281] Freed by task 2392: [ 39.635295] kasan_save_stack+0x38/0x68 [ 39.635319] kasan_set_track+0x28/0x3c [ 39.635338] kasan_set_free_info+0x28/0x4c [ 39.635357] _kasanslab_free+0x104/0x150 [ 39.635374] kasan_slab_free+0x18/0x28 [ 39.635391] slab_free_freelist_hook+0x114/0x248 [ 39.635410] kfree+0xf8/0x2b4 [ 39.635427] skb_free_head+0x58/0x98 [ 39.635447] skb_release_data+0x2f4/0x410 [ 39.635464] skb_release_all+0x50/0x60 [ 39.635481] kfree_skb+0xc8/0x25c [ 39.635498] hci_event_packet+0x894/0xca4 [bluetooth] [ 39.635721] hci_rx_work+0x1c8/0x68c [bluetooth] [ 39.635925] process_one_work+0x560/0xc5c [ 39.635951] worker_thread+0x7ec/0xcc0 [ 39.635970] kthread+0x2d0/0x3d0 [ 39.635990] ret_from_fork+0x10/0x20 [ 39.636021] The buggy address belongs to the object at ffffff80cf28a600 which belongs to the cache kmalloc-512 of size 512 [ 39.636039] The buggy address is located 13 bytes inside of 512-byte region [ffffff80cf28a600, ffffff80cf28a800)
{
"affected": [],
"aliases": [
"CVE-2022-49470"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:23Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event\n\nWe should not access skb buffer data anymore after hci_recv_frame was\ncalled.\n\n[ 39.634809] BUG: KASAN: use-after-free in btmtksdio_recv_event+0x1b0\n[ 39.634855] Read of size 1 at addr ffffff80cf28a60d by task kworker\n[ 39.634962] Call trace:\n[ 39.634974] dump_backtrace+0x0/0x3b8\n[ 39.634999] show_stack+0x20/0x2c\n[ 39.635016] dump_stack_lvl+0x60/0x78\n[ 39.635040] print_address_description+0x70/0x2f0\n[ 39.635062] kasan_report+0x154/0x194\n[ 39.635079] __asan_report_load1_noabort+0x44/0x50\n[ 39.635099] btmtksdio_recv_event+0x1b0/0x1c4\n[ 39.635129] btmtksdio_txrx_work+0x6cc/0xac4\n[ 39.635157] process_one_work+0x560/0xc5c\n[ 39.635177] worker_thread+0x7ec/0xcc0\n[ 39.635195] kthread+0x2d0/0x3d0\n[ 39.635215] ret_from_fork+0x10/0x20\n[ 39.635247] Allocated by task 0:\n[ 39.635260] (stack is not available)\n[ 39.635281] Freed by task 2392:\n[ 39.635295] kasan_save_stack+0x38/0x68\n[ 39.635319] kasan_set_track+0x28/0x3c\n[ 39.635338] kasan_set_free_info+0x28/0x4c\n[ 39.635357] ____kasan_slab_free+0x104/0x150\n[ 39.635374] __kasan_slab_free+0x18/0x28\n[ 39.635391] slab_free_freelist_hook+0x114/0x248\n[ 39.635410] kfree+0xf8/0x2b4\n[ 39.635427] skb_free_head+0x58/0x98\n[ 39.635447] skb_release_data+0x2f4/0x410\n[ 39.635464] skb_release_all+0x50/0x60\n[ 39.635481] kfree_skb+0xc8/0x25c\n[ 39.635498] hci_event_packet+0x894/0xca4 [bluetooth]\n[ 39.635721] hci_rx_work+0x1c8/0x68c [bluetooth]\n[ 39.635925] process_one_work+0x560/0xc5c\n[ 39.635951] worker_thread+0x7ec/0xcc0\n[ 39.635970] kthread+0x2d0/0x3d0\n[ 39.635990] ret_from_fork+0x10/0x20\n[ 39.636021] The buggy address belongs to the object at ffffff80cf28a600\n which belongs to the cache kmalloc-512 of size 512\n[ 39.636039] The buggy address is located 13 bytes inside of\n 512-byte region [ffffff80cf28a600, ffffff80cf28a800)",
"id": "GHSA-3r4m-vx24-mm6m",
"modified": "2025-02-27T21:32:14Z",
"published": "2025-02-27T21:32:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49470"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/01c6a899fa6be4f4cbf60c4f44f0f6691155415f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/02ba31e09a26e8cd4582ac8e6163d80284997727"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0fab6361c4ba17d1b43a991bef4238a3c1754d35"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b3cec8a42fcd11d05313c724f27e01b1db77522c"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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