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CVE-2026-90297— drm/sun4i: crtc: Propagate layer initialization error

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，以下漏洞已得到修复： drm/sun4i: crtc: 传播层初始化错误 在图层初始化失败时返回普通的 ，而其其他错误路径返回错误指针。其唯一的调用者 使用 检查返回值，并愉快地继续执行，此时 被设置为 。随后， 和 会在 中解引用该 指针，导致内核发生 oops（崩溃）。 修复方式： 改为返回错误指针，以便正确传播初始化错误。

AI Predicted 4.4 Difficulty: Hard EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux dcd215801b0279f0a021516526cf7c0b67d5302e< aaf812960fb5ade24be7a1d8fea27a1ffc458c30 affected
dcd215801b0279f0a021516526cf7c0b67d5302e< e216d6168f25a69e5ae5b981ee73b3a860a46441 affected
dcd215801b0279f0a021516526cf7c0b67d5302e< 2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829 affected
dcd215801b0279f0a021516526cf7c0b67d5302e< 1882112124a642de7571fbf354fa1929decbb3ef affected
dcd215801b0279f0a021516526cf7c0b67d5302e< 8f32af44d43332c02198752e596df00659bf4354 affected
dcd215801b0279f0a021516526cf7c0b67d5302e< 65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89 affected
dcd215801b0279f0a021516526cf7c0b67d5302e< c0d3219ffd4c0d42295e0dc949856067b7818b71 affected
dcd215801b0279f0a021516526cf7c0b67d5302e< 7061ff05ed4a3cf16e83f7e3ad09cbd212508a32 affected
… +10 more rows
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I. Basic Information for CVE-2026-90297

Vulnerability Information
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Vulnerability Title
drm/sun4i: crtc: Propagate layer initialization error
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/sun4i: crtc: Propagate layer initialization error sun4i_crtc_init() returns plain NULL when layer initialization fails, while all its other error paths return an error pointer. The only caller, sun4i_tcon_bind(), checks the result with IS_ERR() and happily continues with tcon->crtc set to NULL. sun4i_rgb_init() and sun4i_lvds_init() then dereference it in drm_crtc_mask(), which oopses. Return the error pointer instead.
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 dcd215801b0279f0a021516526cf7c0b67d5302e ~ aaf812960fb5ade24be7a1d8fea27a1ffc458c30 -
Linux Linux 4.12 -

II. Public POCs for CVE-2026-90297

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III. Intelligence Information for CVE-2026-90297

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Patches & Fixes for CVE-2026-90297 (7)

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-2026-90104 9.8 CRITICAL NFSv4.1: zero referring call lists before decoding
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-2026-90151 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-2026-90413 9.1 CRITICAL IB/isert: reject login PDUs declaring more data than was received
CVE-2026-90414 9.1 CRITICAL IB/isert: reject PDUs declaring more data than was received
CVE-2026-90230 9.1 CRITICAL nvmet: fix heap out-of-bounds read in nvmet_auth_negotiate()
CVE-2026-90256 8.8 HIGH Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
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-2026-90381 8.8 HIGH wifi: mt76: fix handling channel context with different bands in mt76_switch_vif_chanctx()
CVE-2026-90380 8.8 HIGH wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete
CVE-2026-90329 8.8 HIGH HID: synchronize input before cleaning up a failed probe
CVE-2026-93042 8.8 HIGH dmaengine: dw-edma: Terminate all descriptors without callbacks
CVE-2026-90162 8.8 HIGH ksmbd: defer publishing granted locks to prevent UAF/double-free race
CVE-2026-90379 8.8 HIGH wifi: mt76: mt7921: Add PCIe AER handler support to prevent system crash
CVE-2026-90367 8.8 HIGH wifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER
CVE-2026-90371 8.8 HIGH wifi: mt76: fix RXDMAD_C buffer recycling race

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-2026-90297

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