CVE-2025-38700

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2025
Source publication: Sep 4, 2025
Source updated: May 12, 2026
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

scsi: libiscsi: Initialize iscsi_conn->dd_data only if memory is allocated

In the Linux kernel, the following vulnerability has been resolved: scsi: libiscsi: Initialize iscsi_conn->dd_data only if memory is allocated In case of an ib_fast_reg_mr allocation failure during iSER setup, the machine hits a panic because iscsi_conn->dd_data is initialized unconditionally, even when no memory is allocated (dd_size == 0). This leads invalid pointer dereference during connection teardown. Fix by setting iscsi_conn->dd_data only if memory is actually allocated. Panic trace: ------------ iser: iser_create_fastreg_desc: Failed to allocate ib_fast_reg_mr err=-12 iser: iser_alloc_rx_descriptors: failed allocating rx descriptors / data buffers BUG: unable to handle page fault for address: fffffffffffffff8 RIP: 0010:swake_up_locked.part.5+0xa/0x40 Call Trace: complete+0x31/0x40 iscsi_iser_conn_stop+0x88/0xb0 [ib_iser] iscsi_stop_conn+0x66/0xc0 [scsi_transport_iscsi] iscsi_if_stop_conn+0x14a/0x150 [scsi_transport_iscsi] iscsi_if_rx+0x1135/0x1834 [scsi_transport_iscsi] ? netlink_lookup+0x12f/0x1b0 ? netlink_deliver_tap+0x2c/0x200 netlink_unicast+0x1ab/0x280 netlink_sendmsg+0x257/0x4f0 ? _copy_from_user+0x29/0x60 sock_sendmsg+0x5f/0x70

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Linux

Vendor: Linux
Product: Linux
Platforms: Unknown
Default status: unaffected

Linux · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
5d91e209fb21fb9cc765729d4c6a85a9fb6c9187	`affected`	git	f53af99f441ee79599d8df6113a7144d74cf9153	Unavailable	None listed
5d91e209fb21fb9cc765729d4c6a85a9fb6c9187	`affected`	git	9ea6d961566c7d762ed0204b06db05756fdda3b6	Unavailable	None listed
5d91e209fb21fb9cc765729d4c6a85a9fb6c9187	`affected`	git	fd5aad080edb501ab5c84b7623d612d0e3033403	Unavailable	None listed
5d91e209fb21fb9cc765729d4c6a85a9fb6c9187	`affected`	git	a145c269dc5380c063a20a0db7e6df2995962e9d	Unavailable	None listed
5d91e209fb21fb9cc765729d4c6a85a9fb6c9187	`affected`	git	66a373f50b4249d57f5a88c7be9676f9d5884865	Unavailable	None listed
5d91e209fb21fb9cc765729d4c6a85a9fb6c9187	`affected`	git	35782c32528d82aa21f84cb5ceb2abd3526a8159	Unavailable	None listed
5d91e209fb21fb9cc765729d4c6a85a9fb6c9187	`affected`	git	a33d42b7fc24fe03f239fbb0880dd5b4b4b97c19	Unavailable	None listed
5d91e209fb21fb9cc765729d4c6a85a9fb6c9187	`affected`	git	2b242ea14386a510010eabfbfc3ce81a101f3802	Unavailable	None listed
5d91e209fb21fb9cc765729d4c6a85a9fb6c9187	`affected`	git	3ea3a256ed81f95ab0f3281a0e234b01a9cae605	Unavailable	None listed

Linux

Vendor: Linux
Product: Linux
Platforms: Unknown
Default status: affected

Linux · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
2.6.27	`affected`	Unavailable	Unavailable	Unavailable	None listed
0	`unaffected`	semver	2.6.27	Unavailable	None listed
5.4.297	`unaffected`	semver	Unavailable	5.4.*	None listed
5.10.241	`unaffected`	semver	Unavailable	5.10.*	None listed
5.15.190	`unaffected`	semver	Unavailable	5.15.*	None listed
6.1.149	`unaffected`	semver	Unavailable	6.1.*	None listed
6.6.103	`unaffected`	semver	Unavailable	6.6.*	None listed
6.12.43	`unaffected`	semver	Unavailable	6.12.*	None listed
6.15.11	`unaffected`	semver	Unavailable	6.15.*	None listed
6.16.2	`unaffected`	semver	Unavailable	6.16.*	None listed
6.17	`unaffected`	original_commit_for_fix	Unavailable	*	None listed