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CVE-2026-90431— remoteproc: Prevent crash handling to race with rproc_del()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已修复以下漏洞： remoteproc：防止崩溃处理与 rproc_del() 发生竞态 和 之间缺乏同步机制。因此，当崩溃处理工作被调度甚至正在执行时，驱动可能被移除，从而导致“释放后使用”（use-after-free）问题。 为避免此问题，必须在移除流程继续之前，取消并同步已调度的工作项。 为确保不与崩溃报告过程发生竞态（该过程可能会调度新的工作项），引入了一个“正在删除”标志。这与之前为确保“start”不与 竞态而引入的 状态类似；但现有机制无法直接复用，因为在原子上下文中调用 是

AI Predicted 4.4 Difficulty: Moderate EPSS 0.22% · P11

Possible ATT&CK Techniques 1 AI

T1610 · Deploy Container

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 8afd519c3470f685f964deebd61aa51d83cde90a< 50f232c26298923d39a48dc8e03d1732e5a5dcf1 affected
8afd519c3470f685f964deebd61aa51d83cde90a< 69af36f1fb7d24d287662fef6b2093bcf847a9db affected
8afd519c3470f685f964deebd61aa51d83cde90a< a8a62cb4d2f3fd6aa06e86f1711c62d2a4cf17d5 affected
8afd519c3470f685f964deebd61aa51d83cde90a< 47de033918cd772146f7438aa04471c020b2dedc affected
8afd519c3470f685f964deebd61aa51d83cde90a< a31d9562eeec5c4103c202fc87651f6e7d3d0035 affected
8afd519c3470f685f964deebd61aa51d83cde90a< f15cde11298402f803d5dda9cb9f95eea3d2ca40 affected
8afd519c3470f685f964deebd61aa51d83cde90a< 61862ed651b2493573e6d2192d5640bc6616f5d0 affected
8afd519c3470f685f964deebd61aa51d83cde90a< 74ee3b2f5767447c57959994341e5b95f1079977 affected
… +10 more rows
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I. Basic Information for CVE-2026-90431

Vulnerability Information
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Vulnerability Title
remoteproc: Prevent crash handling to race with rproc_del()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: remoteproc: Prevent crash handling to race with rproc_del() There's no synchronization between rproc_crash_handler_work() and rproc_del(), as such it's possible for a driver to be removed while crash-handler work is scheduled, or even executing - resulting in use-after-free issues. To avoid this the scheduled work need to be cancelled and synchronized against before the removal proceeds. In order to ensure that this doesn't race with the reporting, and thereby scheduling new work, a "deleting" flag is introduced. This is similar to the RPROC_DELETE state that was introduced to ensure that "start" didn't race with rproc_del(), but the existing mechanism can not be used as it's valid to call rproc_report_crash() in atomic context - and the "state" is protected by a mutex. In the event that work is cancelled the pm_stay_awake() is left unbalanced and need to be unrolled. The blocking and cancelling of crash-handler work prior to the actual rproc_shutdown() call does have the explicit side-effect that crashes resulting from the shutdown process will not enter the crash-handling path, and as such will not generate devcoredumps etc. Due to the existing mutual exclusion between these code paths there's no concrete reduction in functionality, but further work would be needed to handle this case.
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 8afd519c3470f685f964deebd61aa51d83cde90a ~ 50f232c26298923d39a48dc8e03d1732e5a5dcf1 -
Linux Linux 3.7 -

II. Public POCs for CVE-2026-90431

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III. Intelligence Information for CVE-2026-90431

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Patches & Fixes for CVE-2026-90431 (8)

Same Patch Batch · Linux · 2026-09-17 · 600 CVEs total

CVE-2026-92489 9.8 CRITICAL xfrm: Fix skb double-free in xfrm_dev_direct_output()
CVE-2026-90235 9.8 CRITICAL sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE
CVE-2026-90173 9.8 CRITICAL smb: smbdirect: free completion queues with ib_free_cq()
CVE-2026-90104 9.8 CRITICAL NFSv4.1: zero referring call lists before decoding
CVE-2026-90151 9.8 CRITICAL NFSv4: remove callback IDR entry on client allocation failure
CVE-2026-90110 9.4 CRITICAL inetpeer: randomize RB-tree node comparison using SipHash
CVE-2026-90230 9.1 CRITICAL nvmet: fix heap out-of-bounds read in nvmet_auth_negotiate()
CVE-2026-90414 9.1 CRITICAL IB/isert: reject PDUs declaring more data than was received
CVE-2026-90413 9.1 CRITICAL IB/isert: reject login PDUs declaring more data than was received
CVE-2026-90367 8.8 HIGH wifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER
CVE-2026-90329 8.8 HIGH HID: synchronize input before cleaning up a failed probe
CVE-2026-93189 8.8 HIGH HID: core: quiesce input in hid_hw_stop() to prevent use-after-free
CVE-2026-90240 8.8 HIGH iommu/vt-d: Flush context cache with correct SID when tearing down aliases
CVE-2026-90357 8.8 HIGH wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement
CVE-2026-90286 8.8 HIGH drm/amdgpu/gfx6: Use PFP on the compute queues too
CVE-2026-93042 8.8 HIGH dmaengine: dw-edma: Terminate all descriptors without callbacks
CVE-2026-90256 8.8 HIGH Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
CVE-2026-90380 8.8 HIGH wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete
CVE-2026-90381 8.8 HIGH wifi: mt76: fix handling channel context with different bands in mt76_switch_vif_chanctx()
CVE-2026-90425 8.8 HIGH iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID

Showing top 20 of 600 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-90431

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