CVE-2024-26801— Bluetooth: Avoid potential use-after-free in hci_error_reset
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I. Basic Information for CVE-2024-26801
Vulnerability Information
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Vulnerability Title
Bluetooth: Avoid potential use-after-free in hci_error_reset
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Avoid potential use-after-free in hci_error_reset While handling the HCI_EV_HARDWARE_ERROR event, if the underlying BT controller is not responding, the GPIO reset mechanism would free the hci_dev and lead to a use-after-free in hci_error_reset. Here's the call trace observed on a ChromeOS device with Intel AX201: queue_work_on+0x3e/0x6c __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>] ? init_wait_entry+0x31/0x31 __hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>] hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>] process_one_work+0x1d8/0x33f worker_thread+0x21b/0x373 kthread+0x13a/0x152 ? pr_cont_work+0x54/0x54 ? kthread_blkcg+0x31/0x31 ret_from_fork+0x1f/0x30 This patch holds the reference count on the hci_dev while processing a HCI_EV_HARDWARE_ERROR event to avoid potential crash.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于蓝牙中的 hci_error_reset 存在释放后重用问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-26801
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Same Patch Batch · Linux · 2024-04-04 · 32 CVEs total
| CVE-2024-26792 | btrfs: fix double free of anonymous device after snapshot creation failure | |
| CVE-2024-26809 | netfilter: nft_set_pipapo: release elements in clone only from destroy path | |
| CVE-2024-26808 | netfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain | |
| CVE-2024-26807 | spi: cadence-qspi: fix pointer reference in runtime PM hooks | |
| CVE-2024-26806 | spi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks | |
| CVE-2024-26805 | netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter | |
| CVE-2024-26804 | net: ip_tunnel: prevent perpetual headroom growth | |
| CVE-2024-26803 | net: veth: clear GRO when clearing XDP even when down | |
| CVE-2024-26802 | stmmac: Clear variable when destroying workqueue | |
| CVE-2024-26800 | tls: fix use-after-free on failed backlog decryption | |
| CVE-2024-26799 | ASoC: qcom: Fix uninitialized pointer dmactl | |
| CVE-2024-26798 | fbcon: always restore the old font data in fbcon_do_set_font() | |
| CVE-2024-26797 | drm/amd/display: Prevent potential buffer overflow in map_hw_resources | |
| CVE-2024-26796 | drivers: perf: ctr_get_width function for legacy is not defined | |
| CVE-2024-26795 | riscv: Sparse-Memory/vmemmap out-of-bounds fix | |
| CVE-2024-26793 | gtp: fix use-after-free and null-ptr-deref in gtp_newlink() | |
| CVE-2024-26745 | powerpc/pseries/iommu: IOMMU table is not initialized for kdump over SR-IOV | |
| CVE-2024-26791 | btrfs: dev-replace: properly validate device names | |
| CVE-2024-26790 | dmaengine: fsl-qdma: fix SoC may hang on 16 byte unaligned read | |
| CVE-2024-26789 | crypto: arm64/neonbs - fix out-of-bounds access on short input |
Showing top 20 of 32 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2024-26801
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