CVE-2025-38399 (GCVE-0-2025-38399)
Vulnerability from cvelistv5 – Published: 2025-07-25 12:53 – Updated: 2026-10-15 21:52
VLAI
EPSS
VEX
Title
scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()
The function core_scsi3_decode_spec_i_port(), in its error code path,
unconditionally calls core_scsi3_lunacl_undepend_item() passing the
dest_se_deve pointer, which may be NULL.
This can lead to a NULL pointer dereference if dest_se_deve remains
unset.
SPC-3 PR SPEC_I_PT: Unable to locate dest_tpg
Unable to handle kernel paging request at virtual address dfff800000000012
Call trace:
core_scsi3_lunacl_undepend_item+0x2c/0xf0 [target_core_mod] (P)
core_scsi3_decode_spec_i_port+0x120c/0x1c30 [target_core_mod]
core_scsi3_emulate_pro_register+0x6b8/0xcd8 [target_core_mod]
target_scsi3_emulate_pr_out+0x56c/0x840 [target_core_mod]
Fix this by adding a NULL check before calling
core_scsi3_lunacl_undepend_item()
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 21:49 UTC
Assigner
References
9 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 70ddb8133fdb512d4b1f2b4fd1c9e518514f182c
(git)
Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 1129e0e0a833acf90429e0f13951068d5f026e4f (git) Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 1627dda4d70ceb1ba62af2e401af73c09abb1eb5 (git) Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 55dfffc5e94730370b08de02c0cf3b7c951bbe9e (git) Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < 7296c938df2445f342be456a6ff0b3931d97f4e5 (git) Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < c412185d557578d3f936537ed639c4ffaaed4075 (git) Affected: f32ba612ef0f8eecaf6d2a5b04076ee7ea9ed039 , < d8ab68bdb294b09a761e967dad374f2965e1913f (git) |
guessed | |
| Linux | Linux |
Affected:
5.9
Unaffected: 0 , < 5.9 (semver) Unaffected: 5.10.240 , ≤ 5.10.* (semver) Unaffected: 5.15.187 , ≤ 5.15.* (semver) Unaffected: 6.1.144 , ≤ 6.1.* (semver) Unaffected: 6.6.97 , ≤ 6.6.* (semver) Unaffected: 6.12.37 , ≤ 6.12.* (semver) Unaffected: 6.15.6 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
guessed |
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port(). La funci\u00f3n core_scsi3_decode_spec_i_port(), en su ruta de c\u00f3digo de error, llama incondicionalmente a core_scsi3_lunacl_undepend_item() pasando el puntero dest_se_deve, que puede ser NULL. Esto puede provocar una desreferencia de puntero NULL si dest_se_deve permanece sin definir. SPC-3 PR SPEC_I_PT: No se puede ubicar dest_tpg No se puede manejar la solicitud de paginaci\u00f3n del n\u00facleo en la direcci\u00f3n virtual dfff800000000012 Rastreo de llamadas: core_scsi3_lunacl_undepend_item+0x2c/0xf0 [target_core_mod] (P) core_scsi3_decode_spec_i_port+0x120c/0x1c30 [target_core_mod] core_scsi3_emulate_pro_register+0x6b8/0xcd8 [target_core_mod] target_scsi3_emulate_pr_out+0x56c/0x840 [target_core_mod] Solucione esto agregando una comprobaci\u00f3n NULL antes de llamar a core_scsi3_lunacl_undepend_item()"
}
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"id": "CVE-2025-38399",
"lastModified": "2026-10-15T22:18:39.923",
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{
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"tags": [
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"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
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"tags": [
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"vulnStatus": "Modified",
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"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
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},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-11-09T17:41:56+00:00",
"cve": "CVE-2025-38399",
"id": "CVE-2025-38399",
"initial_release_date": "2025-07-25T00:00:00+00:00",
"product_status:known_affected": "200",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38399.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-11-03T17:37:31.744Z",
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"references": [
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"title": "CVE Program Container"
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{
"metrics": [
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"other": {
"content": {
"id": "CVE-2025-38399",
"options": [
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"Exploitation": "none"
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{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
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"timestamp": "2026-10-15T21:49:58.435255Z",
"version": "2.0.3"
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"dateUpdated": "2026-10-15T21:49:59.082Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
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"cna": {
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{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()\n\nThe function core_scsi3_decode_spec_i_port(), in its error code path,\nunconditionally calls core_scsi3_lunacl_undepend_item() passing the\ndest_se_deve pointer, which may be NULL.\n\nThis can lead to a NULL pointer dereference if dest_se_deve remains\nunset.\n\nSPC-3 PR SPEC_I_PT: Unable to locate dest_tpg\nUnable to handle kernel paging request at virtual address dfff800000000012\nCall trace:\n core_scsi3_lunacl_undepend_item+0x2c/0xf0 [target_core_mod] (P)\n core_scsi3_decode_spec_i_port+0x120c/0x1c30 [target_core_mod]\n core_scsi3_emulate_pro_register+0x6b8/0xcd8 [target_core_mod]\n target_scsi3_emulate_pr_out+0x56c/0x840 [target_core_mod]\n\nFix this by adding a NULL check before calling\ncore_scsi3_lunacl_undepend_item()"
}
],
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"value": "AV:N - The vulnerable code is in the fabric-independent LIO SCSI target core, reached by parsing a PERSISTENT RESERVE OUT CDB and parameter list sent by a remote initiator; the flagship fabric (iscsi_target) accepts these over TCP/3260, so a remote peer on the network can deliver the malicious payload.\nAC:L - The attacker fully controls every precondition (service action, res_key=0, sa_res_key!=0, SPEC_I_PT bit, and the parameter list length/TransportID contents), and the NULL pointer is unconditionally present on the very first list entry, so a single malformed PR OUT command crashes the kernel deterministically with no race or memory-layout dependency.\nPR:N - LIO iSCSI targets are routinely deployed without CHAP, where the only \"credential\" is a self-asserted InitiatorName that is discoverable via a SendTargets discovery session, and demo-mode (generate_node_acls=1) grants any peer a mapped LUN outright \u2014 so an unauthenticated network attacker can establish the nexus needed to issue the command.\nUI:N - The crash is triggered purely by the attacker sending one SCSI command over an established I_T nexus; no action by any local user or administrator is needed.\nS:U - The NULL dereference occurs in the kernel that owns the target device and its impact is confined to that same kernel\u0027s security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:N - The fault is a read of a fixed small offset (se_deve-\u003ese_lun_acl) off a NULL pointer; no attacker-influenced offset, no out-of-bounds read, and no data is returned to the initiator, so nothing is disclosed.\nI:N - No memory is written and no attacker-controlled data reaches a store; the dereference faults on a read before any state modification, giving no write or control-flow primitive.\nA:H - The NULL pointer dereference produces a kernel oops (full panic with panic_on_oops) that can be re-triggered at will by an unauthenticated initiator, and the killed command context strands se_lun-\u003elun_ref percpu references so the target subsystem hangs on teardown."
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"title": "scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()",
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"datePublished": "2025-07-25T12:53:43.211Z",
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}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.