CVE-2024-41010
published 2024-07-17CVE-2024-41010: In the Linux kernel, the following vulnerability has been resolved: bpf: Fix too early release of tcx_entry Pedro Pinto and later independently also Hyunwoo…
PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.36%
28.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix too early release of tcx_entry
Pedro Pinto and later independently also Hyunwoo Kim and Wongi Lee reported
an issue that the tcx_entry can be released too early leading to a use
after free (UAF) when an active old-style ingress or clsact qdisc with a
shared tc block is later replaced by another ingress or clsact instance.
Essentially, the sequence to trigger the UAF (one example) can be as follows:
1. A network namespace is created
2. An ingress qdisc is created. This allocates a tcx_entry, and
&tcx_entry->miniq is stored in the qdisc's miniqp->p_miniq. At the
same time, a tcf block with index 1 is created.
3. chain0 is attached to the tcf block. chain0 must be connected to
the block linked to the ingress qdisc to later reach the function
tcf_chain0_head_change_cb_del() which triggers the UAF.
4. Create and graft a clsact qdisc. This causes the ingress qdisc
created in step 1 to be removed, thus freeing the previously linked
tcx_entry:
rtnetlink_rcv_msg()
=> tc_modify_qdisc()
=> qdisc_create()
=> clsact_init() [a]
=> qdisc_graft()
=> qdisc_destroy()
=> __qdisc_destroy()
=> ingress_destroy() [b]
=> tcx_entry_free()
=> kfree_rcu() // tcx_entry freed
5. Finally, the network namespace is closed. This registers the
cleanup_net worker, and during the process of releasing the
remaining clsact qdisc, it accesses the tcx_entry that was
already freed in step 4, causing the UAF to occur:
cleanup_net()
=> ops_exit_list()
=> default_device_exit_batch()
=> unregister_netdevice_many()
=> unregister_netdevice_many_notify()
=> dev_shutdown()
=> qdisc_put()
=> clsact_destroy() [c]
=> tcf_block_put_ext()
=> tcf_chain0_head_change_cb_del()
=> tcf_chain_head_change_item()
=> clsact_chain_head_change()
=> mini_qdisc_pair_swap() // UAF
There are also other variants, the gist is to add an ingress (or clsact)
qdisc with a specific shared block, then to replace that qdisc, waiting
for the tcx_entry kfree_rcu
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.9.10-1 (forky) | linux 6.9.10-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= e420bed025071a623d2720a92bc2245c84757ecb < 230bb13650b0f186f540500fd5f5f7096a822a2a | 230bb13650b0f186f540500fd5f5f7096a822a2a |
| linux | linux | >= e420bed025071a623d2720a92bc2245c84757ecb < f61ecf1bd5b562ebfd7d430ccb31619857e80857 | f61ecf1bd5b562ebfd7d430ccb31619857e80857 |
| linux | linux | >= e420bed025071a623d2720a92bc2245c84757ecb < 1cb6f0bae50441f4b4b32a28315853b279c7404e | 1cb6f0bae50441f4b4b32a28315853b279c7404e |
| linux | linux_kernel | >= 0 < 6.9.10-1 | 6.9.10-1 |
| linux | linux_kernel | >= 0 < 6.9.10-1 | 6.9.10-1 |
| linux | linux_kernel | >= 0 < 6.8.0-48.48 | 6.8.0-48.48 |
| linux | linux_kernel | >= 6.6 < 6.6.41 | 6.6.41 |
| linux | linux_kernel | >= 6.7 < 6.9.10 | 6.9.10 |
| msrc | azl3_kernel_6.6.35.1-5_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.43.1-7_on_azure_linux_3.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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This update corrects flaws in the following subsystems:
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Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
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writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
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Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
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Chenyuan Yang discovered that the USB Gadget subsystem in the Linux kernel
did not properly check for the device to be enabled before writing. A local
attacker could possibly use this to cause a denial of service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
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CVE-2024-41010: In the Linux kernel, the following vulnerability has been resolved: bpf: Fix too early release of tcx_entry Pedro Pinto and later independently also H
osv·2024-07-17·CVSS 5.5
CVE-2024-41010 [MEDIUM] CVE-2024-41010: In the Linux kernel, the following vulnerability has been resolved: bpf: Fix too early release of tcx_entry Pedro Pinto and later independently also H
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix too early release of tcx_entry Pedro Pinto and later independently also Hyunwoo Kim and Wongi Lee reported an issue that the tcx_entry can be released too early leading to a use after free (UAF) when an active old-style ingress or clsact qdisc with a shared tc block is later replaced by another ingress or clsact instance. Essentially, the sequence to trigger the UAF (one example) can be as follows: 1. A network namespace is created 2. An ingress qdisc is created. This allocates a tcx_entry, and &tcx_entry->miniq is stored in the qdisc's miniqp->p_miniq. At the same time, a tcf block with index 1 is created. 3. chain0 is attached to the tcf block. chain0 must be connected to the block linked to the ingress qdisc to
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GHSA-7rc8-rqg8-27m3: In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix too early release of tcx_entry
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ghsa_unreviewed·2024-07-17
CVE-2024-41010 [MEDIUM] CWE-416 GHSA-7rc8-rqg8-27m3: In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix too early release of tcx_entry
Pedro Pinto and later independently also
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix too early release of tcx_entry
Pedro Pinto and later independently also Hyunwoo Kim and Wongi Lee reported
an issue that the tcx_entry can be released too early leading to a use
after free (UAF) when an active old-style ingress or clsact qdisc with a
shared tc block is later replaced by another ingress or clsact instance.
Essentially, the sequence to trigger the UAF (one example) can be as follows:
1. A network namespace is created
2. An ingress qdisc is created. This allocates a tcx_entry, and
&tcx_entry->miniq is stored in the qdisc's miniqp->p_miniq. At the
same time, a tcf block with index 1 is created.
3. chain0 is attached to the tcf block. chain0 must be connected to
the block linked to the ingress qdis
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Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux kernel
did not properly check for the device to be enabled before writing. A local
attacker could possibly use this to cause a denial of service.
(CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- ARM64 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA
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Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom
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CVE-2023-52888 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
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CVE-2024-42239 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
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vendor_ubuntu·2024-11-13·CVSS 5.5
CVE-2024-42239 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
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CVE-2024-41050 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
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vendor_ubuntu·2024-11-07·CVSS 5.5
CVE-2024-41050 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-04·CVSS 5.5
CVE-2024-42131 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-01·CVSS 5.5
CVE-2024-42136 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-01·CVSS 5.5
CVE-2024-42103 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel did not properly check for the device to be enabled before
writing. A local attacker could possibly use this to cause a denial of
service. (CVE-2024-25741)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Red Hat
kernel: bpf: Fix too early release of tcx_entry
vendor_redhat·2024-07-17·CVSS 5.5
CVE-2024-41010 [MEDIUM] CWE-416 kernel: bpf: Fix too early release of tcx_entry
kernel: bpf: Fix too early release of tcx_entry
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix too early release of tcx_entry
Pedro Pinto and later independently also Hyunwoo Kim and Wongi Lee reported
an issue that the tcx_entry can be released too early leading to a use
after free (UAF) when an active old-style ingress or clsact qdisc with a
shared tc block is later replaced by another ingress or clsact instance.
Essentially, the sequence to trigger the UAF (one example) can be as follows:
1. A network namespace is created
2. An ingress qdisc is created. This allocates a tcx_entry, and
&tcx_entry->miniq is stored in the qdisc's miniqp->p_miniq. At the
same time, a tcf block with index 1 is created.
3. chain0 is attached to the tcf block. chain0 must be conn
Microsoft
bpf: Fix too early release of tcx_entry
vendor_msrc·2024-07-09·CVSS 5.5
CVE-2024-41010 [MEDIUM] CWE-416 bpf: Fix too early release of tcx_entry
bpf: Fix too early release of tcx_entry
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.microsoft.com/e
Debian
CVE-2024-41010: linux - In the Linux kernel, the following vulnerability has been resolved: bpf: Fix to...
vendor_debian·2024·CVSS 5.5
CVE-2024-41010 [MEDIUM] CVE-2024-41010: linux - In the Linux kernel, the following vulnerability has been resolved: bpf: Fix to...
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix too early release of tcx_entry Pedro Pinto and later independently also Hyunwoo Kim and Wongi Lee reported an issue that the tcx_entry can be released too early leading to a use after free (UAF) when an active old-style ingress or clsact qdisc with a shared tc block is later replaced by another ingress or clsact instance. Essentially, the sequence to trigger the UAF (one example) can be as follows: 1. A network namespace is created 2. An ingress qdisc is created. This allocates a tcx_entry, and &tcx_entry->miniq is stored in the qdisc's miniqp->p_miniq. At the same time, a tcf block with index 1 is created. 3. chain0 is attached to the tcf block. chain0 must be connected to the block linked to the ingress qdisc to
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/1cb6f0bae50441f4b4b32a28315853b279c7404ehttps://git.kernel.org/stable/c/230bb13650b0f186f540500fd5f5f7096a822a2ahttps://git.kernel.org/stable/c/f61ecf1bd5b562ebfd7d430ccb31619857e80857https://git.kernel.org/stable/c/1cb6f0bae50441f4b4b32a28315853b279c7404ehttps://git.kernel.org/stable/c/230bb13650b0f186f540500fd5f5f7096a822a2ahttps://git.kernel.org/stable/c/f61ecf1bd5b562ebfd7d430ccb31619857e80857
2024-07-17
Published