CVE-2025-40032

PCI: endpoint: pci-epf-test: Add NULL check for DMA channels before release

En bref

Sévérité
Non disponible
EPSS
EPSS 0.22 % · centile 12 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

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]

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 < 6411f840a9b5c47c00ca8e004733de232553870d ; affected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 < 0c5ce6b6ccc22d486cc7239ed908cb0ae5363a7b ; affected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 < fb54ffd60064c4e5139a3eb216e877b1acae1c8b ; affected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 < 57f7fb0d1ac28540c0f6405c829bb9c3b89d8dba ; affected 5ebf3fc59bd20d17df3ba26159787d13cf20d362 < 85afa9ea122dd9d4a2ead104a951d318975dcd25
Linux · Linuxaffected 5.7 ; unaffected 0 < 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.*

Références

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD