usb: typec: ps883x: Fix Oops at unbind

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Summary

CVECVE-2026-53305
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-26 20:17:23 UTC
Updated2026-07-06 20:24:02 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: usb: typec: ps883x: Fix Oops at unbind When trying to unbind a device in order to bind to it vfio-platform as: echo bc0000.geniqup > /sys/bus/platform/devices/bc0000.geniqup/driver/unbind I get the following Oops: [ 436.478639] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020 [ 436.487762] Mem abort info: [ 436.490716] ESR = 0x0000000096000004 [ 436.494595] EC = 0x25: DABT (current EL), IL = 32 bits [ 436.500071] SET = 0, FnV = 0 [ 436.503250] EA = 0, S1PTW = 0 [ 436.506505] FSC = 0x04: level 0 translation fault [ 436.511533] Data abort info: [ 436.514558] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 436.520215] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 436.525436] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 436.530918] user pgtable: 4k pages, 48-bit VAs, pgdp=00000008861a9000 [ 436.537554] [0000000000000020] pgd=0000000000000000, p4d=0000000000000000 [ 436.544548] Internal error: Oops: 0000000096000004 [#1] SMP [ 436.550374] Modules linked in: [ 436.553542] CPU: 2 UID: 0 PID: 671 Comm: bash Tainted: G W 7.0.0-rc3-g56fcdd0911a5-dirty #2 PREEMPT [ 436.564440] Tainted: [W]=WARN [ 436.567515] Hardware name: LENOVO 91B6CTO1WW/3796, BIOS O6NKT3BA 05/02/2025 [ 436.574675] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 436.581841] pc : ps883x_retimer_remove+0x14/0x94 [ 436.586605] lr : i2c_device_remove+0x28/0x84 [ 436.591017] sp : ffff8000847137c0 That's because the ps883x_retimer_remove() retrieves the driver data from i2c_get_clientdata() which was never set at probe. So, add i2c_set_clientdata() at the end of the probe.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.001660000 probability, percentile 0.062220000 (date 2026-07-04)

Problem Types: CWE-476

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 257a087c8b5206e046048de6053fc8b3fa1af814 37a3d1b6827783f26d2f8e6c7683e253ba79ae93 git Not specified
CNA Linux Linux affected 257a087c8b5206e046048de6053fc8b3fa1af814 c404d0ac0cb085cb7077ba32c334cc4042feb81a git Not specified
CNA Linux Linux affected 257a087c8b5206e046048de6053fc8b3fa1af814 381133848a033c2086cf9cafb226f425bd0414ff git Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 6.18.33 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/381133848a033c2086cf9cafb226f425bd0414ff 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/37a3d1b6827783f26d2f8e6c7683e253ba79ae93 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c404d0ac0cb085cb7077ba32c334cc4042feb81a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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