scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-401.
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate() If alua_rtpg_queue() failed from alua_activate(), then 'qdata' is not freed, which will cause following memleak: unreferenced object 0xffff88810b2c6980 (size 32): comm "kworker/u16:2", pid 635322, jiffies 4355801099 (age 1216426.076s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 40 39 24 c1 ff ff ff ff 00 f8 ea 0a 81 88 ff ff @9$............. backtrace: [<0000000098f3a26d>] alua_activate+0xb0/0x320 [<000000003b529641>] scsi_dh_activate+0xb2/0x140 [<000000007b296db3>] activate_path_work+0xc6/0xe0 [dm_multipath] [<000000007adc9ace>] process_one_work+0x3c5/0x730 [<00000000c457a985>] worker_thread+0x93/0x650 [<00000000cb80e628>] kthread+0x1ba/0x210 [<00000000a1e61077>] ret_from_fork+0x22/0x30 Fix the problem by freeing 'qdata' in error path.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.9.21 to before 4.10; 4.10.9 to before 4.11 | 4.10, 4.11 | Patch available | CNA |
| Linux | Linux | 4.11 and later | 4.14.312, 4.19.280, 5.4.240, 5.10.177, 5.15.105, 6.1.22, 6.2.9, 6.3 | Patch available | CNA |
- Linux VendorLinux Affected 4.9.21 to before 4.10; 4.10.9 to before 4.11 Fixed in 4.10, 4.11 Patch available CNA
- Linux VendorLinux Affected 4.11 and later Fixed in 4.14.312, 4.19.280, 5.4.240, 5.10.177, 5.15.105, 6.1.22, 6.2.9, 6.3 Patch available CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.9.21 to before 4.10; 4.10.9 to before 4.11; 4.11.1 to before 4.14.312; 4.15 to before 4.19.280; 4.20 to before 5.4.240; 5.5 to before 5.10.177; 5.11 to before 5.15.105; 5.16 to before 6.1.22; 6.2 to before 6.2.9 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.11:-:*:*:*:*:*:* | 4.11 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.11:rc5:*:*:*:*:*:* | 4.11 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.11:rc6:*:*:*:*:*:* | 4.11 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.11:rc7:*:*:*:*:*:* | 4.11 rc7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.11:rc8:*:*:*:*:*:* | 4.11 rc8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:* | 6.3 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:* | 6.3 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:* | 6.3 rc3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.9.21 to before 4.10; 4.10.9 to before 4.11; 4.11.1 to before 4.14.312; 4.15 to before 4.19.280; 4.20 to before 5.4.240; 5.5 to before 5.10.177; 5.11 to before 5.15.105; 5.16 to before 6.1.22; 6.2 to before 6.2.9 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.11:-:*:*:*:*:*:* Versions 4.11 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.11:rc5:*:*:*:*:*:* Versions 4.11 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.11:rc6:*:*:*:*:*:* Versions 4.11 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.11:rc7:*:*:*:*:*:* Versions 4.11 rc7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.11:rc8:*:*:*:*:*:* Versions 4.11 rc8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:* Versions 6.3 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:* Versions 6.3 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.3:rc3:*:*:*:*:*:* Versions 6.3 rc3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.10, 4.11
- Fix · CNA Linux (Linux) Fixed in 4.14.312, 4.19.280, 5.4.240, 5.10.177, 5.15.105, 6.1.22, 6.2.9, 6.3
Red Hat 2 advisories
- RHSA-2023:7077 Released 2023-11-14 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-513.5.1.el8_9
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-513.5.1.el8_9, kernel-4.18.0-513.5.1.el8_9, kernel-abi-stablelists-4.18.0-513.5.1.el8_9 +19
- RHSA-2023:6583 Released 2023-11-07 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-362.8.1.el9_3, libperf-5.14.0-362.8.1.el9_3
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-362.8.1.el9_3, kernel-64k-debug-devel-matched-5.14.0-362.8.1.el9_3, kernel-64k-devel-5.14.0-362.8.1.el9_3 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.2.0-362.8.1.el9_3, kernel-5.14.0-362.8.1.el9_3, kernel-64k-5.14.0-362.8.1.el9_3 +29
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-362.8.1.el9_3, kernel-rt-core-5.14.0-362.8.1.el9_3, kernel-rt-debug-5.14.0-362.8.1.el9_3 +9
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-362.8.1.el9_3, kernel-rt-core-5.14.0-362.8.1.el9_3, kernel-rt-debug-5.14.0-362.8.1.el9_3 +11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2023:7077 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2023:7077 |
Not affected: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2023-53078
- 2026-10-03 Alias added: GHSA-xjm5-mrh5-2hc5
- 2026-11-05 CISA SSVC decision points changed
References
Patch 8
- https://git.kernel.org/stable/c/123483df146492ca22b503ae6dacc2ce7c3a3974
- https://git.kernel.org/stable/c/c110051d335ef7f62ad33474b0c23997fee5bfb5
- https://git.kernel.org/stable/c/5c4d71424df34fc23dc5336d09394ce68c849542
- https://git.kernel.org/stable/c/c09cdf6eb815ee35e55d6c50ac7f63db58bd20b8
- https://git.kernel.org/stable/c/9311e7a554dffd3823499e309a8b86a5cd1540e5
- https://git.kernel.org/stable/c/1c55982beb80c7d3c30278fc6cfda8496a31dbe6
- https://git.kernel.org/stable/c/0d89254a4320eb7de0970c478172f764125c6355
- https://git.kernel.org/stable/c/a13faca032acbf2699293587085293bdfaafc8ae
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2023-53078 · CVE Program
- CVE-2023-53078 · NVD
- FIRST EPSS
- GHSA-xjm5-mrh5-2hc5 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-53078 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences