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CVE-2026-93142— thermal/drivers/rcar: Fix error checking in probe()

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.

Linux 内核中，以下漏洞已得到修复： thermal/drivers/rcar: 修复 probe() 函数中的错误检查问题 该代码在检查 是否失败之前，就错误地调用了 。为避免对 进行错误指针解引用，应将此调用移至后续位置。 该驱动的行为取决于是否使用了 OF（设备树）热管理： 如果使用 OF 热管理，则调用 ； 如果未使用 OF 热管理，则调用 。 我们可以为这两种情况共用同一套错误检查逻辑，以处理任一调用失败的情形。 此外，将 调用移至后面也会使代码结构更清晰。原始代码采用三步清理流程： 1. 调用 进行

AI Predicted 4.4 Difficulty: Theoretical EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1027 · Obfuscated Files or Information

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux bbcf90c0646ac797700269fa6645a6a46466c79f< a85bcd0c7ef66e3404b3c99e5589c5ea622a757e affected
bbcf90c0646ac797700269fa6645a6a46466c79f< 810875c5996f731961fc5ee1bd24e711f2e8fe78 affected
bbcf90c0646ac797700269fa6645a6a46466c79f< 623349a18d4c6e6add7876553c0cb6947c8d92e6 affected
bbcf90c0646ac797700269fa6645a6a46466c79f< 35bf61798e7d4abf39667d98f298f793b3dd9bbe affected
bbcf90c0646ac797700269fa6645a6a46466c79f< d67607e7749527850619a10d3ed033b02dcea516 affected
bbcf90c0646ac797700269fa6645a6a46466c79f< dd04ad1cdabcad51e34b74b4e91b9aeb7180d05d affected
5.9 affected
< 5.9 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-93142

Vulnerability Information
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Vulnerability Title
thermal/drivers/rcar: Fix error checking in probe()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: thermal/drivers/rcar: Fix error checking in probe() This code accidentally calls thermal_zone_device_enable() before checking whether thermal_zone_device_register_with_trips() failed. Move the call until later to avoid an error pointer dereference of "priv->zone". The driver works differently depending on if we are using OF thermal or not. We use thermal_add_hwmon_sysfs() if we are using OF thermal and call thermal_zone_device_enable() if not. We can share same error check for if either of these fail. Moving the thermal_zone_device_enable() call is a bit cleaner as well. The original code used a three step process to cleanup: 1. Call thermal_zone_device_unregister() to cleanup. 2. Set priv->zone to an error pointer to preserve the error code. 3. Set priv->zone to NULL to avoid a second call to thermal_zone_device_unregister() in the rcar_thermal_remove() function. Now we can just do a direct goto error_unregister and rcar_thermal_remove() handles the cleanup properly.
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 bbcf90c0646ac797700269fa6645a6a46466c79f ~ a85bcd0c7ef66e3404b3c99e5589c5ea622a757e -
Linux Linux 5.9 -

II. Public POCs for CVE-2026-93142

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III. Intelligence Information for CVE-2026-93142

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Patches & Fixes for CVE-2026-93142 (5)

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-2026-90151 9.8 CRITICAL NFSv4: remove callback IDR entry on client allocation failure
CVE-2026-90235 9.8 CRITICAL sunrpc: xprtsock: annotate shared socket callbacks with READ_ONCE/WRITE_ONCE
CVE-2026-90104 9.8 CRITICAL NFSv4.1: zero referring call lists before decoding
CVE-2026-90173 9.8 CRITICAL smb: smbdirect: free completion queues with ib_free_cq()
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-2026-90413 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-2026-90425 8.8 HIGH iommu/tegra241-cmdqv: Require exactly one Stream ID for a vSID
CVE-2026-93042 8.8 HIGH dmaengine: dw-edma: Terminate all descriptors without callbacks
CVE-2026-93189 8.8 HIGH HID: core: quiesce input in hid_hw_stop() to prevent use-after-free
CVE-2026-90329 8.8 HIGH HID: synchronize input before cleaning up a failed probe
CVE-2026-90357 8.8 HIGH wifi: mt76: mt7915: unlink TWT flow if the MCU rejects the agreement
CVE-2026-90256 8.8 HIGH Bluetooth: L2CAP: use proto_lock for l2cap_data to fix l2cap_disconn_ind
CVE-2026-90367 8.8 HIGH wifi: mt76: mt7996: hold dev->mt76.mutex while disabling tx worker in SER
CVE-2026-90381 8.8 HIGH wifi: mt76: fix handling channel context with different bands in mt76_switch_vif_chanctx()
CVE-2026-90379 8.8 HIGH wifi: mt76: mt7921: Add PCIe AER handler support to prevent system crash
CVE-2026-90380 8.8 HIGH wifi: mt76: mt792x: fix use-after-free in mt76_rx_poll_complete
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

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