CVE-2024-49982 — aoe: fix the potential use-after-free problem in more places
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.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 0.4% (30-day exploitation probability)+4
- Technical severity (high)+6
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
- Documented patch — git.kernel.org (NIST National Vulnerability Database)
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Linux Linux, Linux Linux Kernel).
- Apply the fixed version or the patch documented under Remediation.
- Search available logs for exploit probes matching the vulnerability class (memory corruption), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Linux | Linux |
≥ eb48680b0255a9e8a9bdc93d6a55b11c31262e62 and < acc5103a0a8c200a52af7d732c36a8477436a3d3version 6.9≥ 6.8.2 and < 6.9≥ 6.7.11 and < 6.8≥ 6.6.23 and < 6.6.55≥ 6.1.83 and < 6.1.113≥ 5.15.153 and < 5.15.168≥ 5.10.214 and < 5.10.227 and 12 more≥ 5.4.273 and < 5.4.285≥ 4.19.311 and < 4.19.323version a16fbb80064634b254520a46395e36b87ca4731eversion 079cba4f4e307c69878226fdf5228c20aa1c969c≥ f98364e926626c678fb4b9004b75cacf92ff0662 and < 6d6e54fc71ad1ab0a87047fd9c211e75d86084a3≥ f98364e926626c678fb4b9004b75cacf92ff0662 and < 8253a60c89ec35c8f36fb2cc08cdf854c7a3eb58≥ f98364e926626c678fb4b9004b75cacf92ff0662 and < 89d9a69ae0c667e4d9d028028e2dcc837bae626f≥ 74ca3ef68d2f449bc848c0a814cefc487bf755fa and < bc2cbf7525ac288e07d465f5a1d8cb8fb9599254≥ 7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4 and < 07b418d50ccbbca7e5d87a3a0d41d436cefebf79≥ faf0b4c5e00bb680e8e43ac936df24d3f48c8e65 and < f63461af2c1a86af4217910e47a5c46e3372e645≥ 1a54aa506b3b2f31496731039e49778f54eee881 and < a786265aecf39015418e4f930cc1c14603a01490≥ ad80c34944d7175fa1f5c7a55066020002921a99 and < 12f7b89dd72b25da4eeaa22097877963cad6418e |
Vulnerable | CVE Program (cve.org) e CISA ADP |
| Linux | Linux Kernel |
≥ 5.10.214 and < 5.10.227version 6.12-rc1version 5.4.273version 4.19.311≥ 6.11 and < 6.11.3≥ 6.9 and < 6.10.14≥ 6.7.11 and < 6.8.2≥ 6.6.23 and < 6.6.55 and 2 more≥ 6.1.83 and < 6.1.113≥ 5.15.153 and < 5.15.168 |
Vulnerable | NIST National Vulnerability Database |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 8.8 | CVSS 3.1 | High | 2.8 | 5.9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 via NIST National Vulnerability Database |
| 8.8 | CVSS 3.1 | High | — | — | Linux via CVE Program (cve.org) e CISA ADP |
| 7.8 | CVSS 3.1 | High | 1.8 | 5.9 | nvd@nist.gov via NIST National Vulnerability Database |
| 7.8 | CVSS 3.1 | High | — | — | GitHub, Inc. via GitHub Security Advisories |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (score shown at the top: nvd@nist.gov) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
- Correlate service crashes/restarts with inbound traffic; repeated crashes may indicate attempts.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · linux/linux
- SSVC assessment updated
- Record published
- Fix documented
- CVSS changed · 7.8
- Source status changed · → Modified
- Record created in this database
- 2024
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× References added · Oct 14, 2026 – Oct 14, 2026
- 1× Official description updated · Oct 14, 2026 – Oct 14, 2026
References
15 on the record
- git.kernel.org/stable/c/89d9a69ae0c667e4d9d028028e2dcc837bae626f
- git.kernel.org/stable/c/8253a60c89ec35c8f36fb2cc08cdf854c7a3eb58
- git.kernel.org/stable/c/bc2cbf7525ac288e07d465f5a1d8cb8fb9599254
- git.kernel.org/stable/c/acc5103a0a8c200a52af7d732c36a8477436a3d3
- git.kernel.org/stable/c/f63461af2c1a86af4217910e47a5c46e3372e645
- git.kernel.org/stable/c/6d6e54fc71ad1ab0a87047fd9c211e75d86084a3
- git.kernel.org/stable/c/07b418d50ccbbca7e5d87a3a0d41d436cefebf79
- cert-portal.siemens.com/productcert/html/ssa-398330.html
- cert-portal.siemens.com/productcert/html/ssa-355557.html
- github.com/advisories/GHSA-g9fr-wfpx-28xj
- git.kernel.org/stable/c/12f7b89dd72b25da4eeaa22097877963cad6418e
- git.kernel.org/stable/c/a786265aecf39015418e4f930cc1c14603a01490
- nvd.nist.gov/vuln/detail/CVE-2024-49982
- lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Elsewhere on this site
Related CVEs (same products)
- Critical CVE-2026-99999 ipv4: validate checksum_start before completing checksum 10h
- Unknown CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period 10h
- Unknown CVE-2026-98424 wifi: cfg80211: undo netns switch if renaming the wiphy fails 1d
- Unknown CVE-2026-98425 wifi: mac80211: don't warn when an IBSS has no channel to scan 1d
- Unknown CVE-2026-98426 wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path 1d
- Unknown CVE-2026-98427 net/sched: codel: bound the dropping loop per dequeue call 1d
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2024-49982 is "aoe: fix the potential use-after-free problem in more places", rated High. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.8 describes technical severity. EPSS 0.38% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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