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CVE-2026-64221— spi: ti-qspi: fix use-after-free after DMA setup failure

AI Predicted 4.4 Difficulty: Trivial EPSS 0.18% · P8

Possible ATT&CK Techniques 1AI

T1211 · Exploitation for Stealth

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxc687c46e9e4527c4b4d82bc3cca58c1b08bcfb83< 9c6f306a8140962c7284197db54b96fdb5f468d6affected
c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83< 3bbbe7ae3fdada0df4157c1ffe989f92dfa8dcd6affected
c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83< d6f422b122922d1abee907d673bcc990e5f3672daffected
c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83< f2dc841d7dc9063fe9b47ced869b1271e55052aeaffected
c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83< 1cd927002120678bd5d23c760246639caa53040eaffected
c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83< d7a076fb596c7b408ed6df74793a597990a6d860affected
c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83< 178b9b570c0f75fa7e691490520328b20d19138eaffected
c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83< ea6ec3343e05f7937a53eb6d7617b3abdb4abc19affected
… +10 more rows
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I. Basic Information for CVE-2026-64221

Vulnerability Information

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Vulnerability Title
spi: ti-qspi: fix use-after-free after DMA setup failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: spi: ti-qspi: fix use-after-free after DMA setup failure The driver falls back to PIO mode if DMA setup fails during probe. Make sure to clear the DMA channel pointer also if buffer allocation fails to avoid passing a pointer to the released channel to the DMA engine (or trying to free the channel a second time on late probe errors or driver unbind). This issue was flagged by Sashiko when reviewing a devres allocation conversion patch.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux c687c46e9e4527c4b4d82bc3cca58c1b08bcfb83 ~ 9c6f306a8140962c7284197db54b96fdb5f468d6 -
LinuxLinux 4.12 -

II. Public POCs for CVE-2026-64221

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III. Intelligence Information for CVE-2026-64221

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Patches & Fixes for CVE-2026-64221 (7)

Same Patch Batch · Linux · 2026-07-24 · 48 CVEs total

CVE-2026-64222octeontx2-pf: avoid double free of pool->stack on AQ init failure
CVE-2026-64219drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_as
CVE-2026-64217netfs: Fix overrun check in netfs_extract_user_iter()
CVE-2026-64212wifi: iwlwifi: mld: don't dereference a pointer before NULL checking it
CVE-2026-64211srcu: Don't queue workqueue handlers to never-online CPUs
CVE-2026-64210net/mlx5e: xsk: Fix unlocked writing to ICOSQ
CVE-2026-64209phy: qcom: qmp-usbc: Fix out-of-bounds array access in dp swing config
CVE-2026-64208crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks
CVE-2026-64213hwmon: (lm90) Add lock protection to lm90_alert
CVE-2026-64220device property: set fwnode->secondary to NULL in fwnode_init()
CVE-2026-64218batman-adv: bla: fix report_work leak on backbone_gw purge
CVE-2026-64223wifi: mac80211: consume only present negotiated TTLM maps
CVE-2026-64224octeontx2-pf: fix double free in rvu_rep_rsrc_init()
CVE-2026-64225octeontx2-af: CGX: add bounds check to cgx_speed_mbps index
CVE-2026-64226sched_ext: Avoid UAF in scx_root_enable_workfn() init failure path
CVE-2026-64227ACPI: driver: Check ACPI_COMPANION() against NULL during probe
CVE-2026-64229x86/mm: Disable broadcast TLB flush when PCID is disabled
CVE-2026-64228net: ethtool: phy: avoid NULL deref when PHY driver is unbound
CVE-2026-64230regulator: tps65219: fix irq_data.rdev not being assigned
CVE-2026-64231drm/msm/dsi: don't dump registers past the mapped region

Showing top 20 of 48 CVEs. View all on vendor page &rarr; →

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