nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Linux | Linux | affected |
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Configuration 1 [-]
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Ubuntu USN |
USN-8593-1 | Linux kernel vulnerabilities |
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USN-8603-1 | Linux kernel (Azure) vulnerabilities |
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USN-8618-1 | Linux kernel vulnerabilities |
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USN-8663-1 | Linux kernel (NVIDIA) vulnerabilities |
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USN-8664-1 | Linux kernel (NVIDIA BaseOS) vulnerabilities |
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USN-8728-1 | Linux kernel (GCP) vulnerabilities |
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USN-8781-1 | Linux kernel (NVIDIA Tegra) vulnerabilities |
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USN-8728-2 | Linux kernel (Azure) vulnerabilities |
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USN-8728-3 | Linux kernel (Oracle) vulnerabilities |
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USN-8875-1 | Linux kernel vulnerabilities |
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USN-8877-1 | Linux kernel (GCP) vulnerabilities |
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USN-8878-1 | Linux kernel (GCP) vulnerabilities |
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USN-8879-1 | Linux kernel (Oracle) vulnerabilities |
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USN-8903-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8904-1 | Linux kernel (Azure) vulnerabilities |
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USN-8905-1 | Linux kernel (GCP) vulnerabilities |
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USN-8906-1 | Linux kernel (IBM) vulnerabilities |
Ubuntu USN |
USN-8875-2 | Linux kernel (NVIDIA) vulnerabilities |
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USN-8903-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-8905-2 | Linux kernel (GCP) vulnerabilities |
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USN-9025-1 | Linux kernel vulnerabilities |
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USN-9029-1 | Linux kernel (Raspberry Pi) vulnerabilities |
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USN-9066-1 | Linux kernel (HWE) vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.197% probability within 30 days)
Key SSVC decision points have not yet been added.
| Type | Values Removed | Values Added |
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| Weaknesses | CWE-362 CWE-416 |
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| CPEs | cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* |
| Type | Values Removed | Values Added |
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| Weaknesses | CWE-416 |
| Type | Values Removed | Values Added |
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| Weaknesses | CWE-416 |
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| Weaknesses | CWE-364 | |
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cvssV3_1
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| Description | In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc() A race condition exists in the NFC LLCP connection state machine where the connection acceptance packet (CC) can be processed concurrently with socket release. This can lead to a use-after-free of the socket object. When nfc_llcp_recv_cc() moves the socket from the connecting_sockets list to the sockets list, it does so without holding the socket lock. If llcp_sock_release() is executing concurrently, it might have already unlinked the socket and dropped its references, which can result in nfc_llcp_recv_cc() linking a freed socket into the live list. Fix this by holding lock_sock() during the state transition and list movement in nfc_llcp_recv_cc(). After acquiring the lock, check if the socket is still hashed to ensure it hasn't already been unlinked and marked for destruction by the release path. This aligns the locking pattern with recv_hdlc() and recv_disc(). | |
| Title | nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc() | |
| First Time appeared |
Linux
Linux linux Kernel |
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| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
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