CVE-2024-49982: aoe: fix the potential use-after-free problem in more places
Noroxi assessment
Priority: Monitor (action score 31/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.38% (FIRST EPSS).
- Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: Linux Linux 07b418d50ccbbca7e5d87a3a0d41d436cefebf79, 12f7b89dd72b25da4eeaa22097877963cad6418e, 4.19.323; azl3 kernel 6.6.51.1-5 on Azure Linux 3.0 6.6.57.1-2; azl3 kernel 6.6.57.1-2 on Azure Linux 3.0 6.6.57.1-2.
Low priority for now. Upgrade to Linux Linux 07b418d50ccbbca7e5d87a3a0d41d436cefebf79, 12f7b89dd72b25da4eeaa22097877963cad6418e, 4.19.323; azl3 kernel 6.6.51.1-5 on Azure Linux 3.0 6.6.57.1-2; azl3 kernel 6.6.57.1-2 on Azure Linux 3.0 6.6.57.1-2 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in more places For fixing CVE-2023-6270, f98364e92662 ("aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts") makes tx() calling dev_put() instead of doing in aoecmd_cfg_pkts(). It avoids that the tx() runs into use-after-free. Then Nicolai Stange found more places in aoe have potential use-after-free problem with tx(). e.g. revalidate(), aoecmd_ata_rw(), resend(), probe() and aoecmd_cfg_rsp(). Those functions also use aoenet_xmit() to push packet to tx queue. So they should also use dev_hold() to increase the refcnt of skb->dev. On the other hand, moving dev_put() to tx() causes that the refcnt of skb->dev be reduced to a negative value, because corresponding dev_hold() are not called in revalidate(), aoecmd_ata_rw(), resend(), probe(), and aoecmd_cfg_rsp(). This patch fixed this issue.
- Published
- Oct 21, 2024
- Updated
- Oct 15, 2026
- EPSS
- 0.3% · 32th percentile
- CWE
- CWE-416
Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.8
- CNA · Linux
- 8.8
- 1.0 point gap
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel5.10.214 and later · before 5.10.227
- linux linux kernel5.15.153 and later · before 5.15.168
- linux linux kernel6.1.83 and later · before 6.1.113
- linux linux kernel6.6.23 and later · before 6.6.55
- linux linux kernel6.7.11 and later · before 6.8.2
- linux linux kernel6.9 and later · before 6.10.14
- linux linux kernel6.11 and later · before 6.11.3
- linux linux kernel4.19.311
- linux linux kernel5.4.273
- linux linux kernel6.12
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
- 079cba4f4e307c69878226fdf5228c20aa1c969c, a16fbb80064634b254520a46395e36b87ca4731e, 6.9affected
- ad80c34944d7175fa1f5c7a55066020002921a99 and later · before 12f7b89dd72b25da4eeaa22097877963cad6418eaffected · git
- 1a54aa506b3b2f31496731039e49778f54eee881 and later · before a786265aecf39015418e4f930cc1c14603a01490affected · git
- faf0b4c5e00bb680e8e43ac936df24d3f48c8e65 and later · before f63461af2c1a86af4217910e47a5c46e3372e645affected · git
- 7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4 and later · before 07b418d50ccbbca7e5d87a3a0d41d436cefebf79affected · git
- 74ca3ef68d2f449bc848c0a814cefc487bf755fa and later · before bc2cbf7525ac288e07d465f5a1d8cb8fb9599254affected · git
- eb48680b0255a9e8a9bdc93d6a55b11c31262e62 and later · before acc5103a0a8c200a52af7d732c36a8477436a3d3affected · git
- f98364e926626c678fb4b9004b75cacf92ff0662 and later · before 89d9a69ae0c667e4d9d028028e2dcc837bae626faffected · git
- f98364e926626c678fb4b9004b75cacf92ff0662 and later · before 8253a60c89ec35c8f36fb2cc08cdf854c7a3eb58affected · git
- f98364e926626c678fb4b9004b75cacf92ff0662 and later · before 6d6e54fc71ad1ab0a87047fd9c211e75d86084a3affected · git
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 6.1.115-1 | 6.1.115-1 |
| Debian:13 | linux | before 6.11.4-1 | 6.11.4-1 |
| SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-default | before 3.0.101-108.168.1 | 3.0.101-108.168.1 |
| SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-ec2 | before 3.0.101-108.168.1 | 3.0.101-108.168.1 |
| SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-source | before 3.0.101-108.168.1 | 3.0.101-108.168.1 |
| SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-syms | before 3.0.101-108.168.1 | 3.0.101-108.168.1 |
| SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-trace | before 3.0.101-108.168.1 | 3.0.101-108.168.1 |
| SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-xen | before 3.0.101-108.168.1 | 3.0.101-108.168.1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV90Now
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
Published before and after this one in the same product
- ← EarlierCVE-2024-49973Oct 21, 2024 · r8169: add tally counter fields added with RTL812522Monitor
- ← EarlierCVE-2024-49977Oct 21, 2024 · net: stmmac: Fix zero-division error when disabling tc cbs22Monitor
- Later →CVE-2024-49994Oct 21, 2024 · block: fix integer overflow in BLKSECDISCARD22Monitor
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 | 07b418d50ccbbca7e5d87a3a0d41d436cefebf79 | Vendor (CNA) |
| Linux Linux | 12f7b89dd72b25da4eeaa22097877963cad6418e | Vendor (CNA) |
| Linux Linux | 4.19.323 | Vendor (CNA) |
| Linux Linux | 5.10.227 | Vendor (CNA) |
| Linux Linux | 5.15.168 | Vendor (CNA) |
| Linux Linux | 5.4.285 | Vendor (CNA) |
| Linux Linux | 6.1.113 | Vendor (CNA) |
| Linux Linux | 6.6.55 | Vendor (CNA) |
| Linux Linux | 6.8 | Vendor (CNA) |
| Linux Linux | 6.9 | Vendor (CNA) |
| Linux Linux | 6d6e54fc71ad1ab0a87047fd9c211e75d86084a3 | Vendor (CNA) |
| Linux Linux | 8253a60c89ec35c8f36fb2cc08cdf854c7a3eb58 | Vendor (CNA) |
| Linux Linux | 89d9a69ae0c667e4d9d028028e2dcc837bae626f | Vendor (CNA) |
| Linux Linux | a786265aecf39015418e4f930cc1c14603a01490 | Vendor (CNA) |
| Linux Linux | acc5103a0a8c200a52af7d732c36a8477436a3d3 | Vendor (CNA) |
| Linux Linux | bc2cbf7525ac288e07d465f5a1d8cb8fb9599254 | Vendor (CNA) |
| Linux Linux | f63461af2c1a86af4217910e47a5c46e3372e645 | Vendor (CNA) |
| azl3 kernel 6.6.51.1-5 on Azure Linux 3.0 | 6.6.57.1-2 · CBL-Mariner Releases | Microsoft (MSRC) |
| azl3 kernel 6.6.57.1-2 on Azure Linux 3.0 | 6.6.57.1-2 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.167.1-2 on CBL Mariner 2.0 | 5.15.173.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.167.1-2 on CBL-Mariner 2.0 | 5.15.173.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.173.1-1 on CBL Mariner 2.0 | 5.15.173.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| debian:linux | 6.1.115-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-default | 3.0.101-108.168.1 · SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | Package registry (OSV) |
| suse:kernel-ec2 | 3.0.101-108.168.1 · SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | Package registry (OSV) |
| suse:kernel-source | 3.0.101-108.168.1 · SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | Package registry (OSV) |
| suse:kernel-syms | 3.0.101-108.168.1 · SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | Package registry (OSV) |
| suse:kernel-trace | 3.0.101-108.168.1 · SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | Package registry (OSV) |
| suse:kernel-xen | 3.0.101-108.168.1 · SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | 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.
No history yet (it accumulates with the daily EPSS job).
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
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-416 · Use After FreeCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Root cause
After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.
The bug in code
The whole CWE-416 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
free(dev->buf);
/* ... another thread is still running ... */
process(dev->buf);Fixed
lock(&dev->lock);
free(dev->buf);
dev->buf = NULL;
unlock(&dev->lock);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
Show all references (12 more)Show less
- git.kernel.org/stable/c/12f7b89dd72b25da4eeaa22097877963cad6418e
- git.kernel.org/stable/c/6d6e54fc71ad1ab0a87047fd9c211e75d86084a3
- git.kernel.org/stable/c/8253a60c89ec35c8f36fb2cc08cdf854c7a3eb58
- git.kernel.org/stable/c/89d9a69ae0c667e4d9d028028e2dcc837bae626f
- git.kernel.org/stable/c/a786265aecf39015418e4f930cc1c14603a01490
- git.kernel.org/stable/c/acc5103a0a8c200a52af7d732c36a8477436a3d3
- git.kernel.org/stable/c/bc2cbf7525ac288e07d465f5a1d8cb8fb9599254
- git.kernel.org/stable/c/f63461af2c1a86af4217910e47a5c46e3372e645
- lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- cert-portal.siemens.com/productcert/html/ssa-355557.html
- cert-portal.siemens.com/productcert/html/ssa-398330.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.