net: ipv4: fix one memleak in __inet_del_ifa()
In the Linux kernel, the following vulnerability has been resolved: net: ipv4: fix one memleak in __inet_del_ifa() I got the below warning when do fuzzing test: unregister_netdevice: waiting for bond0 to become free. Usage count = 2 It can be repoduced via: ip link add bond0 type bond sysctl -w net.ipv4.conf.bond0.promote_secondaries=1 ip addr add 4.117.174.103/0 scope 0x40 dev bond0 ip addr add 192.168.100.111/255.255.255.254 scope 0 dev bond0 ip addr add 0.0.0.4/0 scope 0x40 secondary dev bond0 ip addr del 4.117.174.103/0 scope 0x40 dev bond0 ip link delete bond0 type bond In this reproduction test case, an incorrect 'last_prim' is found in __inet_del_ifa(), as a result, the secondary address(0.0.0.4/0 scope 0x40) is lost. The memory of the secondary address is leaked and the reference of in_device and net_device is leaked. Fix this problem: Look for 'last_prim' starting at location of the deleted IP and inserting the promoted IP into the location of 'last_prim'.
- SUSE-SU-2026:2914-1
- SUSE-SU-2026:3593-1
- SUSE-SU-2026:3595-1
- SUSE-SU-2026:3616-1
- SUSE-SU-2026:3617-1
- SUSE-SU-2026:3702-1
- SUSE-SU-2026:3703-1
- SUSE-SU-2026:3706-1
- SUSE-SU-2026:3707-1
- SUSE-SU-2026:3708-1
- SUSE-SU-2026:3709-1
- SUSE-SU-2026:3710-1
- SUSE-SU-2026:3715-1
- SUSE-SU-2026:3717-1
- SUSE-SU-2026:3721-1
- SUSE-SU-2026:3722-1
- SUSE-SU-2026:3723-1
- SUSE-SU-2026:3724-1
- SUSE-SU-2026:3728-1
- SUSE-SU-2026:3729-1
- Published
- Dec 24, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 10th percentile
- CWE
- —
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Report tools
Action score
0
Monitor
Low priority for now.
- CVSS
- 0 / 40 · —
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
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Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 2.6.15affected
- 0ff60a45678e67b2547256a636fd00c1667ce4fa and later · before 5624f26a3574500ce23929cb2c9976a0dec9920aaffected · git
- 0ff60a45678e67b2547256a636fd00c1667ce4fa and later · before 7c8ddcdab1b900bed69cad6beef477fff116289eaffected · git
- 0ff60a45678e67b2547256a636fd00c1667ce4fa and later · before 2f1e86014d0cc084886c36a2d77bc620e2d42618affected · git
- 0ff60a45678e67b2547256a636fd00c1667ce4fa and later · before 980f8445479814509a3cd55a8eabaae1c9030a4caffected · git
- 0ff60a45678e67b2547256a636fd00c1667ce4fa and later · before 42652af5360d30b43b06057c193739e7dfb18f42affected · git
- 0ff60a45678e67b2547256a636fd00c1667ce4fa and later · before ac28b1ec6135649b5d78b028e47264cb3ebca5eaaffected · git
- before 2.6.15not affected · semver
- 5.4.257 and later · up to and including 5.4.*not affected · semver
- 5.10.195 and later · up to and including 5.10.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.55-1 | 6.1.55-1 |
| Debian:13 | linux | before 6.5.6-1 | 6.5.6-1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-64kb | before 5.14.21-150400.24.235.1 | 5.14.21-150400.24.235.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-docs | before 5.14.21-150400.24.235.1 | 5.14.21-150400.24.235.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-obs-build | before 5.14.21-150400.24.235.1 | 5.14.21-150400.24.235.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-syms | before 5.14.21-150400.24.235.1 | 5.14.21-150400.24.235.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-64kb | before 5.14.21-150500.55.182.1 | 5.14.21-150500.55.182.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-docs | before 5.14.21-150500.55.182.1 | 5.14.21-150500.55.182.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-obs-build | before 5.14.21-150500.55.182.1 | 5.14.21-150500.55.182.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-syms | before 5.14.21-150500.55.182.1 | 5.14.21-150500.55.182.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kernel-default | before 4.12.14-122.320.1 | 4.12.14-122.320.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_71 | before 17-2.1 | 17-2.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_72 | before 16-2.1 | 16-2.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_75 | before 12-2.1 | 12-2.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_76 | before 12-2.1 | 12-2.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_79 | before 8-2.1 | 8-2.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_83 | before 5-2.1 | 5-2.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_84 | before 3-2.1 | 3-2.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_85 | before 1-8.3.1 | 1-8.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_42 | before 22-150400.2.1 | 22-150400.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_43 | before 19-150400.2.1 | 19-150400.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_45 | before 16-150400.2.1 | 16-150400.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_46 | before 12-150400.2.1 | 12-150400.2.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_48 | before 10-150400.2.1 | 10-150400.2.1 |
+42
Same product
linux: all recordsOther highest-scoring records for the same primary product.
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- CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment40Plan
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- CVE-2026-74309vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler40Plan
- CVE-2026-74280crypto: marvell/octeontx - fix DMA cleanup using wrong loop index40Plan
- CVE-2026-74279crypto: cavium/cpt - fix DMA cleanup using wrong loop index40Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 2f1e86014d0cc084886c36a2d77bc620e2d42618 | Vendor (CNA) |
| Linux Linux | 42652af5360d30b43b06057c193739e7dfb18f42 | Vendor (CNA) |
| Linux Linux | 5624f26a3574500ce23929cb2c9976a0dec9920a | Vendor (CNA) |
| Linux Linux | 7c8ddcdab1b900bed69cad6beef477fff116289e | Vendor (CNA) |
| Linux Linux | 980f8445479814509a3cd55a8eabaae1c9030a4c | Vendor (CNA) |
| Linux Linux | ac28b1ec6135649b5d78b028e47264cb3ebca5ea | Vendor (CNA) |
| debian:linux | 6.1.55-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-64kb | 5.14.21-150400.24.235.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-default | 4.12.14-122.320.1 · SUSE:Linux Enterprise Live Patching 12 SP5 | Package registry (OSV) |
| suse:kernel-default-base | 5.14.21-150400.24.235.1.150400.24.118.3 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-docs | 5.14.21-150400.24.235.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP4_Update_58 | 1-150400.9.7.1 · SUSE:Linux Enterprise Live Patching 15 SP4 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP5_Update_44 | 1-150500.11.5.1 · SUSE:Linux Enterprise Live Patching 15 SP5 | Package registry (OSV) |
| suse:kernel-obs-build | 5.14.21-150400.24.235.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-rt | 5.14.21-150400.15.181.1 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-source | 4.12.14-122.320.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS | Package registry (OSV) |
| suse:kernel-syms | 4.12.14-122.320.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.14.21-150400.24.235.1 · SUSE:Linux Enterprise Server 15 SP4-LTSS | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP5_Update_85 | 1-8.3.1 · SUSE:Linux Enterprise Live Patching 12 SP5 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
No CVSS vector for this record, so attack conditions can't be derived.
Weakness class (CWE)
—
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/2f1e86014d0cc084886c36a2d77bc620e2d42618
- git.kernel.org/stable/c/42652af5360d30b43b06057c193739e7dfb18f42
- git.kernel.org/stable/c/5624f26a3574500ce23929cb2c9976a0dec9920a
- git.kernel.org/stable/c/7c8ddcdab1b900bed69cad6beef477fff116289e
- git.kernel.org/stable/c/980f8445479814509a3cd55a8eabaae1c9030a4c
- git.kernel.org/stable/c/ac28b1ec6135649b5d78b028e47264cb3ebca5ea
Vendor advisories and official records. Exploit/PoC links are deliberately left out.