CVE-2025-21871— tee: optee: Fix supplicant wait loop
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2< 3eb4911364c764572e9db4ab900a57689a54e8ce | affected |
4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2< 0180cf0373f84fff61b16f8c062553a13dd7cfca | affected | ||
4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2< c0a9a948159153be145f9471435695373904ee6d | affected | ||
4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2< ec18520f5edc20a00c34a8c9fdd6507c355e880f | affected | ||
4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2< d61cc1a435e6894bfb0dd3370c6f765d2d12825d | affected | ||
4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2< fd9d2d6124c293e40797a080adf8a9c237efd8b8 | affected | ||
4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2< 21234efe2a8474a6d2d01ea9573319de7858ce44 | affected | ||
4fb0a5eb364d239722e745c02aef0dbd4e0f1ad2< 70b0d6b0a199c5a3ee6c72f5e61681ed6f759612 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2025-21871
Vulnerability Information
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Vulnerability Title
tee: optee: Fix supplicant wait loop
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix supplicant wait loop OP-TEE supplicant is a user-space daemon and it's possible for it be hung or crashed or killed in the middle of processing an OP-TEE RPC call. It becomes more complicated when there is incorrect shutdown ordering of the supplicant process vs the OP-TEE client application which can eventually lead to system hang-up waiting for the closure of the client application. Allow the client process waiting in kernel for supplicant response to be killed rather than indefinitely waiting in an unkillable state. Also, a normal uninterruptible wait should not have resulted in the hung-task watchdog getting triggered, but the endless loop would. This fixes issues observed during system reboot/shutdown when supplicant got hung for some reason or gets crashed/killed which lead to client getting hung in an unkillable state. It in turn lead to system being in hung up state requiring hard power off/on to recover.
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OP-TEE supplicant等待循环问题，可能导致系统挂起。
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-2025-21871
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|---|
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Same Patch Batch · Linux · 2025-03-27 · 124 CVEs total
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| CVE-2023-52998 | net: fec: Use page_pool_put_full_page when freeing rx buffers | |
| CVE-2023-52999 | net: fix UaF in netns ops registration error path | |
| CVE-2023-52997 | ipv4: prevent potential spectre v1 gadget in ip_metrics_convert() | |
| CVE-2023-52996 | ipv4: prevent potential spectre v1 gadget in fib_metrics_match() | |
| CVE-2023-52995 | riscv/kprobe: Fix instruction simulation of JALR | |
| CVE-2023-52994 | acpi: Fix suspend with Xen PV | |
| CVE-2023-52993 | x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL | |
| CVE-2023-52992 | bpf: Skip task with pid=1 in send_signal_common() | |
| CVE-2023-52991 | net: fix NULL pointer in skb_segment_list | |
| CVE-2023-52989 | firewire: fix memory leak for payload of request subaction to IEC 61883-1 FCP region | |
| CVE-2023-52988 | ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path() | |
| CVE-2023-52987 | ASoC: SOF: ipc4-mtrace: prevent underflow in sof_ipc4_priority_mask_dfs_write() | |
| CVE-2023-52986 | bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener | |
| CVE-2023-52985 | arm64: dts: imx8mm-verdin: Do not power down eth-phy | |
| CVE-2023-52984 | net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices | |
| CVE-2023-52973 | vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF | |
| CVE-2022-49761 | btrfs: always report error in run_one_delayed_ref() | |
| CVE-2022-49760 | mm/hugetlb: fix PTE marker handling in hugetlb_change_protection() | |
| CVE-2023-52974 | scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress |
Showing top 20 of 124 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
V. Comments for CVE-2025-21871
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