CVE-2025-37938— tracing: Verify event formats that have "%*p.."
Affected Version Matrix 14
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 5013f454a352cce8e62162976026a9c472595e42< 6854c87ac823181c810f8c07489ba543260c0023 | affected |
5013f454a352cce8e62162976026a9c472595e42< 4d11fac941d83509be4e6a21038281d6d96da50c | affected | ||
5013f454a352cce8e62162976026a9c472595e42< 03127354027508d076073b020d3070990fd6a958 | affected | ||
5013f454a352cce8e62162976026a9c472595e42< 04b80d45ecfaf780981d6582899e3ab205e4aa08 | affected | ||
5013f454a352cce8e62162976026a9c472595e42< c7204fd1758c0caf1938e8a59809a1fdf28a8114 | affected | ||
5013f454a352cce8e62162976026a9c472595e42< ea8d7647f9ddf1f81e2027ed305299797299aa03 | affected | ||
5.13 | affected | ||
< 5.13 | unaffected | ||
| … +6 more rows | |||
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I. Basic Information for CVE-2025-37938
Vulnerability Information
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Vulnerability Title
tracing: Verify event formats that have "%*p.."
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tracing: Verify event formats that have "%*p.." The trace event verifier checks the formats of trace events to make sure that they do not point at memory that is not in the trace event itself or in data that will never be freed. If an event references data that was allocated when the event triggered and that same data is freed before the event is read, then the kernel can crash by reading freed memory. The verifier runs at boot up (or module load) and scans the print formats of the events and checks their arguments to make sure that dereferenced pointers are safe. If the format uses "%*p.." the verifier will ignore it, and that could be dangerous. Cover this case as well. Also add to the sample code a use case of "%*pbl".
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tracing中未验证包含%*p..的事件格式。
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-2025-37938
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-05-20 · 95 CVEs total
| CVE-2025-37924 | 9.8 CRITICAL | ksmbd: fix use-after-free in kerberos authentication |
| CVE-2025-37958 | mm/huge_memory: fix dereferencing invalid pmd migration entry | |
| CVE-2025-37954 | smb: client: Avoid race in open_cached_dir with lease breaks | |
| CVE-2025-37953 | sch_htb: make htb_deactivate() idempotent | |
| CVE-2025-37949 | xenbus: Use kref to track req lifetime | |
| CVE-2025-37948 | arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs | |
| CVE-2025-37947 | ksmbd: prevent out-of-bounds stream writes by validating *pos | |
| CVE-2025-37946 | s390/pci: Fix duplicate pci_dev_put() in disable_slot() when PF has child VFs | |
| CVE-2025-37945 | net: phy: allow MDIO bus PM ops to start/stop state machine for phylink-controlled PHY | |
| CVE-2025-37950 | ocfs2: fix panic in failed foilio allocation | |
| CVE-2025-37957 | KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception | |
| CVE-2025-37956 | ksmbd: prevent rename with empty string | |
| CVE-2025-37960 | memblock: Accept allocated memory before use in memblock_double_array() | |
| CVE-2025-37959 | bpf: Scrub packet on bpf_redirect_peer | |
| CVE-2025-37961 | ipvs: fix uninit-value for saddr in do_output_route4 | |
| CVE-2025-37963 | arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users | |
| CVE-2025-37962 | ksmbd: fix memory leak in parse_lease_state() | |
| CVE-2025-37964 | x86/mm: Eliminate window where TLB flushes may be inadvertently skipped | |
| CVE-2025-37965 | drm/amd/display: Fix invalid context error in dml helper | |
| CVE-2025-37967 | usb: typec: ucsi: displayport: Fix deadlock |
Showing top 20 of 95 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
Same vendor: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
V. Comments for CVE-2025-37938
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