CVE-2025-40032PCI: endpoint: pci-epf-test: Add NULL check for DMA channels before release
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-test: Add NULL check for DMA channels before release The fields dma_chan_tx and dma_chan_rx of the struct pci_epf_test can be NULL even after EPF initialization. Then it is prudent to check that they have non-NULL values before releasing the channels. Add the checks in pci_epf_test_clean_dma_chan(). Without the checks, NULL pointer dereferences happen and they can lead to a kernel panic in some cases: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050 Call trace: dma_release_channel+0x2c/0x120 (P) pci_epf_test_epc_deinit+0x94/0xc0 [pci_epf_test] pci_epc_deinit_notify+0x74/0xc0 tegra_pcie_ep_pex_rst_irq+0x250/0x5d8 irq_thread_fn+0x34/0xb8 irq_thread+0x18c/0x2e8 kthread+0x14c/0x210 ret_from_fork+0x10/0x20 [mani: trimmed the stack trace]
Timeline
ID reserved
By Linux
- 7 months later
· 7 months later
Published
- 7 months later
· 7 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 – < 6411f840a9b5c47c00ca8e004733de232553870d
- affected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 – < 0c5ce6b6ccc22d486cc7239ed908cb0ae5363a7b
- affected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 – < fb54ffd60064c4e5139a3eb216e877b1acae1c8b
- affected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 – < 57f7fb0d1ac28540c0f6405c829bb9c3b89d8dba
- affected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 – < 85afa9ea122dd9d4a2ead104a951d318975dcd25
- affected 5.7
- unaffected < 5.7
- unaffected 6.1.157 – ≤ 6.1.*
- unaffected 6.6.113 – ≤ 6.6.*
- unaffected 6.12.54 – ≤ 6.12.*
- unaffected 6.17.3 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References5
- https://git.kernel.org/stable/c/6411f840a9b5c47c00ca8e004733de232553870d (opens in a new tab)
- https://git.kernel.org/stable/c/0c5ce6b6ccc22d486cc7239ed908cb0ae5363a7b (opens in a new tab)
- https://git.kernel.org/stable/c/fb54ffd60064c4e5139a3eb216e877b1acae1c8b (opens in a new tab)
- https://git.kernel.org/stable/c/57f7fb0d1ac28540c0f6405c829bb9c3b89d8dba (opens in a new tab)
- https://git.kernel.org/stable/c/85afa9ea122dd9d4a2ead104a951d318975dcd25 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-36496 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-40032)Record last updated .