scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() In iscsit_dec_conn_usage_count(), the function calls complete() while holding the conn->conn_usage_lock. As soon as complete() is invoked, the waiter (such as iscsit_close_connection()) may wake up and proceed to free the iscsit_conn structure. If the waiter frees the memory before the current thread reaches spin_unlock_bh(), it results in a KASAN slab-use-after-free as the function attempts to release a lock within the already-freed connection structure. Fix this by releasing the spinlock before calling complete().
CVE-2026-23216
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-23216
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "e48354ce078c079996f89d715dfa44814b4eba01",
"lessThan": "ba684191437380a07b27666eb4e72748be1ea201",
"versionType": "git"
},
{
"status": "affected",
"version": "e48354ce078c079996f89d715dfa44814b4eba01",
"lessThan": "8518f072fc92921418cd9ed4268dd4f3e9a8fd75",
"versionType": "git"
},
{
"status": "affected",
"version": "e48354ce078c079996f89d715dfa44814b4eba01",
"lessThan": "275016a551ba1a068a3bd6171b18611726b67110",
"versionType": "git"
},
{
"status": "affected",
"version": "e48354ce078c079996f89d715dfa44814b4eba01",
"lessThan": "73b487d44bf4f92942629d578381f89c326ff77f",
"versionType": "git"
},
{
"status": "affected",
"version": "e48354ce078c079996f89d715dfa44814b4eba01",
"lessThan": "48fe983e92de2c59d143fe38362ad17ba23ec7f3",
"versionType": "git"
},
{
"status": "affected",
"version": "e48354ce078c079996f89d715dfa44814b4eba01",
"lessThan": "3835e49e146a4e6e7787b29465f1a23379b6ec44",
"versionType": "git"
},
{
"status": "affected",
"version": "e48354ce078c079996f89d715dfa44814b4eba01",
"lessThan": "9411a89e9e7135cc459178fa77a3f1d6191ae903",
"versionType": "git"
}
],
"programFiles": [
"drivers/target/iscsi/iscsi_target_util.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.1"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.250",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.200",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.163",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.124",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.70",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.10",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/target/iscsi/iscsi_target_util.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-23216
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #39821 · Revision 1
- Added to Heist Feed
- Publisher date