CVE-2024-57974
published 2025-02-27CVE-2024-57974: In the Linux kernel, the following vulnerability has been resolved: udp: Deal with race between UDP socket address change and rehash If a UDP socket changes…
PriorityP419medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.14%
4.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
udp: Deal with race between UDP socket address change and rehash
If a UDP socket changes its local address while it's receiving
datagrams, as a result of connect(), there is a period during which
a lookup operation might fail to find it, after the address is changed
but before the secondary hash (port and address) and the four-tuple
hash (local and remote ports and addresses) are updated.
Secondary hash chains were introduced by commit 30fff9231fad ("udp:
bind() optimisation") and, as a result, a rehash operation became
needed to make a bound socket reachable again after a connect().
This operation was introduced by commit 719f835853a9 ("udp: add
rehash on connect()") which isn't however a complete fix: the
socket will be found once the rehashing completes, but not while
it's pending.
This is noticeable with a socat(1) server in UDP4-LISTEN mode, and a
client sending datagrams to it. After the server receives the first
datagram (cf. _xioopen_ipdgram_listen()), it issues a connect() to
the address of the sender, in order to set up a directed flow.
Now, if the client, running on a different CPU thread, happens to
send a (subsequent) datagram while the server's socket changes its
address, but is not rehashed yet, this will result in a failed
lookup and a port unreachable error delivered to the client, as
apparent from the following reproducer:
LEN=$(($(cat /proc/sys/net/core/wmem_default) / 4))
dd if=/dev/urandom bs=1 count=${LEN} of=tmp.in
while :; do
taskset -c 1 socat UDP4-LISTEN:1337,null-eof OPEN:tmp.out,create,trunc &
sleep 0.1 || sleep 1
taskset -c 2 socat OPEN:tmp.in UDP4:localhost:1337,shut-null
wait
done
where the client will eventually get ECONNREFUSED on a write()
(typically the second or third one of a given iteration):
2024/11/13 21:28:23 socat[46901] E write(6, 0x556db2e3c000, 8192): Connection refused
This issue was first observed as a seldom failure in Podman's tests
checkin
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.12.13-1 (forky) | linux 6.12.13-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 30fff9231fad757c061285e347b33c5149c2c2e4 < 4f8344fce91c5766d368edb0ad80142eacd805c7 | 4f8344fce91c5766d368edb0ad80142eacd805c7 |
| linux | linux | >= 30fff9231fad757c061285e347b33c5149c2c2e4 < d65d3bf309b2649d27b24efd0d8784da2d81f2a6 | d65d3bf309b2649d27b24efd0d8784da2d81f2a6 |
| linux | linux | >= 30fff9231fad757c061285e347b33c5149c2c2e4 < a502ea6fa94b1f7be72a24bcf9e3f5f6b7e6e90c | a502ea6fa94b1f7be72a24bcf9e3f5f6b7e6e90c |
| linux | linux_kernel | >= 0 < 6.12.13-1 | 6.12.13-1 |
| linux | linux_kernel | >= 0 < 6.12.13-1 | 6.12.13-1 |
| linux | linux_kernel | >= 0 < 6.8.0-64.67 | 6.8.0-64.67 |
| linux | linux_kernel | >= 2.6.33 < 6.12.13 | 6.12.13 |
| linux | linux_kernel | >= 6.13 < 6.13.2 | 6.13.2 |
| msrc | azl3_kernel_6.6.104.2-4_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.112.1-2_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.117.1-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.119.3-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.119.3-3_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.121.1-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.126.1-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.130.1-3_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.96.2-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.96.2-2_on_azure_linux_3.0 | — | — |
| msrc | cbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.202.1-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian4.7MEDIUM
vendor_msrc4.7MEDIUM
vendor_redhat4.7MEDIUM
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- Character device driver;
- TPM device driver;
- Clock framework and drivers;
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- Serial ATA and Parallel ATA drivers;
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GHSA
GHSA-hqjf-7m9j-v4qc: In the Linux kernel, the following vulnerability has been resolved:
udp: Deal with race between UDP socket address change and rehash
If a UDP socket
ghsa_unreviewed·2025-02-27
CVE-2024-57974 [MEDIUM] CWE-362 GHSA-hqjf-7m9j-v4qc: In the Linux kernel, the following vulnerability has been resolved:
udp: Deal with race between UDP socket address change and rehash
If a UDP socket
In the Linux kernel, the following vulnerability has been resolved:
udp: Deal with race between UDP socket address change and rehash
If a UDP socket changes its local address while it's receiving
datagrams, as a result of connect(), there is a period during which
a lookup operation might fail to find it, after the address is changed
but before the secondary hash (port and address) and the four-tuple
hash (local and remote ports and addresses) are updated.
Secondary hash chains were introduced by commit 30fff9231fad ("udp:
bind() optimisation") and, as a result, a rehash operation became
needed to make a bound socket reachable again after a connect().
This operation was introduced by commit 719f835853a9 ("udp: add
rehash on connect()") which isn't however a complete fix: the
socket will
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CVE-2024-57974: In the Linux kernel, the following vulnerability has been resolved: udp: Deal with race between UDP socket address change and rehash If a UDP socket c
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CVE-2024-57974 [MEDIUM] CVE-2024-57974: In the Linux kernel, the following vulnerability has been resolved: udp: Deal with race between UDP socket address change and rehash If a UDP socket c
In the Linux kernel, the following vulnerability has been resolved: udp: Deal with race between UDP socket address change and rehash If a UDP socket changes its local address while it's receiving datagrams, as a result of connect(), there is a period during which a lookup operation might fail to find it, after the address is changed but before the secondary hash (port and address) and the four-tuple hash (local and remote ports and addresses) are updated. Secondary hash chains were introduced by commit 30fff9231fad ("udp: bind() optimisation") and, as a result, a rehash operation became needed to make a bound socket reachable again after a connect(). This operation was introduced by commit 719f835853a9 ("udp: add rehash on connect()") which isn't however a complete fix: the socket will be
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- ARM64 architecture;
- PowerPC architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
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- Clock framework and drivers;
- FireWire subsystem;
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- Drivers core;
- Network block device driver;
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- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPU drivers;
- HID subsystem;
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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:
- PowerPC architecture;
- S390 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
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Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- PowerPC architecture;
- S390 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
- x86 platfor
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CVE-2024-58070 [HIGH] Linux kernel vulnerabilities
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Summary: Several security issues were fixed in the Linux kernel.
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:
- PowerPC architecture;
- S390 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
- x86 platfor
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CVE-2024-57953 [HIGH] Linux kernel (Real-time) vulnerabilities
Title: Linux kernel (Real-time) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- PowerPC architecture;
- S390 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
-
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2025-07-17·CVSS 5.9
CVE-2024-57953 [MEDIUM] Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- PowerPC architecture;
- S390 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPIO subsystem;
- GP
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-07-17·CVSS 7.8
CVE-2024-57953 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- PowerPC architecture;
- S390 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
- x86 platfor
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-28
CVE-2024-57977 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- I3C subsystem;
- InfiniBand drivers;
- Input Device (Mouse) drivers;
- IOM
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2025-05-22
CVE-2025-21716 Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- I3C subsystem;
- InfiniBand drivers;
- Input Device (Mouse) drivers;
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-20
CVE-2025-21716 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I2C subsystem;
- I3C subsystem;
- InfiniBand drivers;
- Input Device (Mouse) drivers;
- IOM
Red Hat
kernel: udp: Deal with race between UDP socket address change and rehash
vendor_redhat·2025-02-27·CVSS 4.7
CVE-2024-57974 [MEDIUM] CWE-362 kernel: udp: Deal with race between UDP socket address change and rehash
kernel: udp: Deal with race between UDP socket address change and rehash
In the Linux kernel, the following vulnerability has been resolved:
udp: Deal with race between UDP socket address change and rehash
If a UDP socket changes its local address while it's receiving
datagrams, as a result of connect(), there is a period during which
a lookup operation might fail to find it, after the address is changed
but before the secondary hash (port and address) and the four-tuple
hash (local and remote ports and addresses) are updated.
Secondary hash chains were introduced by commit 30fff9231fad ("udp:
bind() optimisation") and, as a result, a rehash operation became
needed to make a bound socket reachable again after a connect().
This operation was introduced by commit 719f835853a9 ("udp: add
reh
Microsoft
udp: Deal with race between UDP socket address change and rehash
vendor_msrc·2025-02-11·CVSS 4.7
CVE-2024-57974 [MEDIUM] udp: Deal with race between UDP socket address change and rehash
udp: Deal with race between UDP socket address change and rehash
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
Debian
CVE-2024-57974: linux - In the Linux kernel, the following vulnerability has been resolved: udp: Deal w...
vendor_debian·2024·CVSS 4.7
CVE-2024-57974 [MEDIUM] CVE-2024-57974: linux - In the Linux kernel, the following vulnerability has been resolved: udp: Deal w...
In the Linux kernel, the following vulnerability has been resolved: udp: Deal with race between UDP socket address change and rehash If a UDP socket changes its local address while it's receiving datagrams, as a result of connect(), there is a period during which a lookup operation might fail to find it, after the address is changed but before the secondary hash (port and address) and the four-tuple hash (local and remote ports and addresses) are updated. Secondary hash chains were introduced by commit 30fff9231fad ("udp: bind() optimisation") and, as a result, a rehash operation became needed to make a bound socket reachable again after a connect(). This operation was introduced by commit 719f835853a9 ("udp: add rehash on connect()") which isn't however a complete fix: the socket will be
No detection rules found.
No public exploits indexed.
2025-02-27
Published