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CVE-2026-72489— staging: nvec: fix use-after-free in nvec_rx_completed()

CVSS 8.4 · High EPSS 0.15% · P5

Possible ATT&CK Techniques 1AI

T1135 · Network Share Discovery

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxd6bdcf2e1019351cbc176e963b7756766bdd8721< 6b2ea886ebdae44a2394029844a4e78f58e1587daffected
d6bdcf2e1019351cbc176e963b7756766bdd8721< a37625c7b688fcf68a54263528eccbabfd7fa17aaffected
d6bdcf2e1019351cbc176e963b7756766bdd8721< 9f7fe4165a1f1014bdadc8e744c0fd3c2d8c0b89affected
d6bdcf2e1019351cbc176e963b7756766bdd8721< 08626fcfe12308ca3f8b22c538ba7dee0b2dce7aaffected
d6bdcf2e1019351cbc176e963b7756766bdd8721< f19a5bc059051143c489dd6f79a0f9c3bfd13aeaaffected
d6bdcf2e1019351cbc176e963b7756766bdd8721< bb3d592c7d6c4ec8ac6640c690ca13298e7e8e90affected
d6bdcf2e1019351cbc176e963b7756766bdd8721< 5de04caa46b635e180cecbd164e333eca535db94affected
d6bdcf2e1019351cbc176e963b7756766bdd8721< 26813881181deb3a32fbb59eadb2599cbe8423f6affected
… +10 more rows
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I. Basic Information for CVE-2026-72489

Vulnerability Information
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Vulnerability Title
staging: nvec: fix use-after-free in nvec_rx_completed()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: nvec: fix use-after-free in nvec_rx_completed() In nvec_rx_completed(), when an incomplete RX transfer is detected, nvec_msg_free() is called to return the message back to the pool by clearing its 'used' atomic flag. Immediately after this, the code accesses nvec->rx->data[0] to check the message type. Since nvec_msg_free() marks the pool slot as available via atomic_set(), any concurrent or subsequent call to nvec_msg_alloc() could claim that same slot and overwrite its data[] array. Reading nvec->rx->data[0] after freeing the message is therefore a use-after-free. Fix this by saving the message type byte before calling nvec_msg_free(), then using the saved value for the battery quirk check.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux d6bdcf2e1019351cbc176e963b7756766bdd8721 ~ 6b2ea886ebdae44a2394029844a4e78f58e1587d -
LinuxLinux 3.2 -

II. Public POCs for CVE-2026-72489

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III. Intelligence Information for CVE-2026-72489

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Patches & Fixes for CVE-2026-72489 (8)

Same Patch Batch · Linux · 2026-08-15 · 846 CVEs total

CVE-2026-7428010.0 CRITICALcrypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-7427910.0 CRITICALcrypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-7240710.0 CRITICALgeneve: validate inner network offset in geneve_gro_complete()
CVE-2026-7240810.0 CRITICALgeneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-7430910.0 CRITICALvdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-7447510.0 CRITICALvxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-7242110.0 CRITICALipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-724939.9 CRITICALnet: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-724639.8 CRITICALxfrm: Fix dev use-after-free in xfrm async resumption
CVE-2026-722489.8 CRITICALnetfilter: flowtable: support IPIP tunnel with direct xmit
CVE-2026-723819.8 CRITICALksmbd: fix use-after-free of fp->owner.name in durable handle owner check
CVE-2026-724779.8 CRITICALfs/ntfs3: call _ntfs_bad_inode() when failing to rename
CVE-2026-724739.8 CRITICALxprtrdma: Decouple req recycling from RPC completion
CVE-2026-724729.8 CRITICALnfs: use nfsi->rwsem to protect traversal of the file lock list
CVE-2026-744069.8 CRITICALvxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().
CVE-2026-722229.8 CRITICALsunrpc: pin svc_xprt across the asynchronous TLS handshake callback
CVE-2026-721379.8 CRITICALxfrm: nat_keepalive: avoid double free on send error
CVE-2026-722269.8 CRITICALbatman-adv: tt: prevent TVLV OOB check overflow
CVE-2026-743769.8 CRITICALmd/raid10: reset read_slot when reusing r10bio for discard
CVE-2026-722349.8 CRITICALbatman-adv: access unicast_ttvn skb->data only after skb realloc

Showing top 20 of 846 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-72489

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