CVE-2026-46119
published 2026-05-28CVE-2026-46119: In the Linux kernel, the following vulnerability has been resolved: libceph: Fix slab-out-of-bounds access in auth message processing If a (potentially…
PriorityP351critical9.1CVSS 3.1
AVNACLPRNUINSUCHINAH
EPSS
0.53%
41.4th percentile
In the Linux kernel, the following vulnerability has been resolved:
libceph: Fix slab-out-of-bounds access in auth message processing
If a (potentially corrupted) message of type CEPH_MSG_AUTH_REPLY
contains a positive value in its result field, it is treated as an
error code by ceph_handle_auth_reply() and returned to
handle_auth_reply(). Thereafter, an attempt is made to send the
preallocated message of type CEPH_MSG_AUTH, where the returned value is
interpreted as the size of the front segment to send. If the result
value in the message is greater than the size of the memory buffer
allocated for the front segment, an out-of-bounds access occurs, and
the content of the memory region beyond this buffer is sent out.
This patch fixes the issue by treating only negative values in the
result field as errors. Positive values are therefore treated as success
in the same way as a zero value. Additionally, a BUG_ON is added to
__send_prepared_auth_request() comparing the len parameter to
front_alloc_len to prevent sending the message if it exceeds the bounds
of the allocation and to make it easier to catch any logic flaws leading
to this.
Affected
72 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | >= 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc < c2374b92c729d0388a538b3cde7b3e3b5e55ef39 | c2374b92c729d0388a538b3cde7b3e3b5e55ef39 |
| linux | linux | >= 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc < 38fdf04c602d52c42c67fc1617211492753b7e8b | 38fdf04c602d52c42c67fc1617211492753b7e8b |
| linux | linux | >= 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc < 2ae0afd98432536562fa8261538ae795446f0589 | 2ae0afd98432536562fa8261538ae795446f0589 |
| linux | linux | >= 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc < 408e85ee708b6aa03eeb0220ffa0915f4d407181 | 408e85ee708b6aa03eeb0220ffa0915f4d407181 |
| linux | linux | >= 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc < b7df9fbd4869fdfe09a3f501ffd228486521e062 | b7df9fbd4869fdfe09a3f501ffd228486521e062 |
| linux | linux | >= 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc < 8517b6c8d2c759918ba0058cb6c7e14d59643202 | 8517b6c8d2c759918ba0058cb6c7e14d59643202 |
| linux | linux | >= 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc < 1c439de70b1c3eb3c6bffa8245c16b9fc318f114 | 1c439de70b1c3eb3c6bffa8245c16b9fc318f114 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 2.6.34.1 < 5.15.209 | 5.15.209 |
| linux | linux_kernel | >= 5.16 < 6.1.175 | 6.1.175 |
| linux | linux_kernel | >= 6.13 < 6.18.30 | 6.18.30 |
| linux | linux_kernel | >= 6.19 < 7.0.7 | 7.0.7 |
| linux | linux_kernel | >= 6.2 < 6.6.140 | 6.6.140 |
| linux | linux_kernel | >= 6.7 < 6.12.88 | 6.12.88 |
| ubuntu | linux | — | — |
| ubuntu | linux-aws | — | — |
| ubuntu | linux-aws-5.15 | — | — |
CVSS provenance
nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
vendor_ubuntu8.8HIGH
vendor_redhat7.0MEDIUM
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- USB over IP driver;
- File systems infrastructure;
- HFS+ file system;
- Network file system (NFS) server daemon;
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subsystem in the Linux kernel when handling socket buffer fragments. This
flaw is known as Fragnesia. A local attacker could use this to escalate
privileges, or possibly escape a container. (CVE-2026-43503)
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- InfiniBand drivers;
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- USB over IP driver;
- Network file system (NFS) server daemon;
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fragments during socket buffer operations, collectively known as Dirty
Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the
RxRPC networking subsystem when processing paged fragments. A local
attacker could use this to escalate privileges, or possibly escape a
container. (CVE-2026-43284)
It was discovered that a logic flaw existed in the XFRM ESP-in-TCP
subsystem in the Linux kernel when handling socket buffer fragments. This
flaw is known as Fragnesia. A local attacker could use this to escalate
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- InfiniBand drivers;
- IOMMU subsystem;
- Network drivers;
- STMicroelectronics network drivers;
- NVME drivers;
- x86 platform drivers;
- SCSI subsystem;
- SPI subsystem;
- TCM subsystem;
- USB over IP driver;
- File systems infrastructure;
- HFS+ file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- IPv6 networking;
- Tracing infrastructure;
- Timer subsystem;
- B.A.T.M.A.N. meshing protocol;
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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:
- ARM64 architecture;
- Block layer subsystem;
- Cryptographic API;
- DMA engine subsystem;
- InfiniBand drivers;
- STMicroelectronics network drivers;
- Network drivers;
- NVME drivers;
- SCSI subsystem;
- USB over IP driver;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- Kernel thread helper (kthread);
- IPv6 networking;
- Tracing infrastructure;
- Kernel exit() syscall;
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- B.A.T.M.A.N. meshing protocol
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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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO 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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
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Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some AMD processors did not properly clear data in
the floating point divider unit during speculative execution. A local
attacker could use this to expose sensitive information. (CVE-2025-54505)
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;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Rados block device (RBD) driver;
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- DMA engine subsystem;
- GPU drivers;
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- STMicroelectronics network drivers;
- Network drivers;
- NVME drivers;
- SCSI subsystem;
- USB over IP driver;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- SMB network file system;
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Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some AMD processors did not properly clear data in
the floating point divider unit during speculative execution. A local
attacker could use this to expose sensitive information. (CVE-2025-54505)
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;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Rados block device (RBD) driver;
- Compressed RAM block device driver;
- Character device driver;
- TPM device driver;
- Hardware crypto device drivers;
- EDAC drivers;
- GPU drivers;
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CVE-2026-43314 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;
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring dr
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CVE-2026-46119 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a logic flaw existed in the XFRM ESP-in-TCP
subsystem in the Linux kernel when handling socket buffer fragments. This
flaw is known as Fragnesia. A local attacker could use this to escalate
privileges, or possibly escape a container. (CVE-2026-43503)
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:
- USB over IP driver;
- Network file system (NFS) server daemon;
- SMB network file system;
- Tracing infrastructure;
- Ethernet bridge;
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Summary: Several security issues were fixed in the Linux kernel.
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- RISC-V architecture;
- Cryptographic API;
- InfiniBand drivers;
- IOMMU subsystem;
- Network drivers;
- STMicroelectronics network drivers;
- NVME drivers;
- x86 platform drivers;
- SCSI subsystem;
- SPI subsystem;
- TCM subsystem;
- USB over IP driver;
- File systems infrastructure;
- HFS+ file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- IPv6 networking;
- Tracing infrastructure;
- Timer subsystem;
- B.A.T.M.A.N. meshing protocol;
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CVE-2026-43314 [HIGH] Linux kernel (Low Latency) vulnerabilities
Title: Linux kernel (Low Latency) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel did not properly handle shared page
fragments during socket buffer operations, collectively known as Dirty
Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the
RxRPC networking subsystem when processing paged fragments. A local
attacker could use this to escalate privileges, or possibly escape a
container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998, CVE-2026-46000)
It was discovered that a logic flaw existed in the XFRM ESP-in-TCP
subsystem in the Linux kernel when handling socket buffer fragments. This
flaw is known as Fragnesia. A local attacker could use this to escalate
privileges, or possibly escape a conta
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vendor_ubuntu·2026-07-02·CVSS 7.8
CVE-2026-43314 [HIGH] Linux kernel (Xilinx) vulnerabilities
Title: Linux kernel (Xilinx) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel algif_aead module did not properly
handle in-place cryptographic operations. This flaw is known as Copy Fail.
A local attacker could use this to escalate privileges, or possibly escape
a container. (CVE-2026-31431)
It was discovered that the Linux kernel did not properly handle shared page
fragments during socket buffer operations, collectively known as Dirty
Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the
RxRPC networking subsystem when processing paged fragments. A local
attacker could use this to escalate privileges, or possibly escape a
container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998, CVE-2026-46000)
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vendor_ubuntu·2026-07-02
CVE-2026-43314 Linux kernel (NVIDIA Tegra) vulnerabilities
Title: Linux kernel (NVIDIA Tegra) 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;
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardwar
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vendor_ubuntu·2026-07-01·CVSS 4.7
CVE-2025-68214 [MEDIUM] 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:
- RISC-V architecture;
- Cryptographic API;
- InfiniBand drivers;
- IOMMU subsystem;
- Network drivers;
- STMicroelectronics network drivers;
- NVME drivers;
- x86 platform drivers;
- SCSI subsystem;
- SPI subsystem;
- TCM subsystem;
- USB over IP driver;
- File systems infrastructure;
- HFS+ file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- IPv6 networking;
- Tracing infrastructure;
- Timer subsystem;
- B.A.T.M.A.N. meshing protocol;
- Bluetooth subsystem;
- Ethernet bridge;
-
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vendor_ubuntu·2026-07-01·CVSS 2.0
CVE-2026-46042 [LOW] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some AMD processors did not properly clear data in
the floating point divider unit during speculative execution. A local
attacker could use this to expose sensitive information. (CVE-2025-54505)
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;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Rados block device (RBD) driver;
- Compressed RAM block device driver;
- Character device driver;
- TPM device driver;
- Hardware crypto device drivers;
- EDAC drivers;
- GPU drivers;
- Greybus drivers;
- HID
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-07-01
CVE-2026-43226 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;
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring dr
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2026-07-01·CVSS 7.1
CVE-2026-43304 [HIGH] Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) 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;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- DMA engine subsystem;
- InfiniBand drivers;
- STMicroelectronics network drivers;
- Network drivers;
- NVME drivers;
- SCSI subsystem;
- USB over IP driver;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- Kernel thread helper (kthread);
- IPv6 networking;
- Tracing infrastructure;
- Kernel exit() syscall;
- Scatterlist API;
- B.A.T.M.A.N. meshi
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-07-01·CVSS 7.1
CVE-2026-43304 [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:
- ARM64 architecture;
- Block layer subsystem;
- Cryptographic API;
- DMA engine subsystem;
- InfiniBand drivers;
- STMicroelectronics network drivers;
- Network drivers;
- NVME drivers;
- SCSI subsystem;
- USB over IP driver;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- Kernel thread helper (kthread);
- IPv6 networking;
- Tracing infrastructure;
- Kernel exit() syscall;
- Scatterlist API;
- B.A.T.M.A.N. meshing protocol;
- Ethernet br
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2026-07-01·CVSS 8.8
CVE-2026-46042 [HIGH] Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel did not properly handle shared page
fragments during socket buffer operations, collectively known as Dirty
Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the
RxRPC networking subsystem when processing paged fragments. A local
attacker could use this to escalate privileges, or possibly escape a
container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998, CVE-2026-46000)
It was discovered that a logic flaw existed in the XFRM ESP-in-TCP
subsystem in the Linux kernel when handling socket buffer fragments. This
flaw is known as Fragnesia. A local attacker could use this to escalate
privileges, or possibly escape a container. (C
Red Hat
kernel: libceph: Fix slab-out-of-bounds access in auth message processing
vendor_redhat·2026-05-28·CVSS 7.0
CVE-2026-46119 [MEDIUM] CWE-131 kernel: libceph: Fix slab-out-of-bounds access in auth message processing
kernel: libceph: Fix slab-out-of-bounds access in auth message processing
A flaw was found in the Linux kernel's libceph component. A remote attacker could exploit this vulnerability by sending a specially crafted CEPH_MSG_AUTH_REPLY message. When the message's result field contains a positive value, it can be misinterpreted as a buffer size, leading to a slab-out-of-bounds read. This allows the attacker to disclose sensitive information from memory beyond the intended buffer.
Package: kernel (Red Hat Enterprise Linux 10) - Affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Affected
Package: kernel (Red Hat Enterprise Linux 8) - Affected
Package: kernel-rt (Red
VulDB
Linux Kernel up to 6.6.139/6.12.87/6.18.29/7.0.6 libceph ceph_handle_auth_reply len out-of-bounds
vuldb·2026-06-25·CVSS 9.1
CVE-2026-46119 [CRITICAL] Linux Kernel up to 6.6.139/6.12.87/6.18.29/7.0.6 libceph ceph_handle_auth_reply len out-of-bounds
A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.6.139/6.12.87/6.18.29/7.0.6. Affected is the function ceph_handle_auth_reply of the component libceph. Such manipulation of the argument len leads to out-of-bounds read.
This vulnerability is uniquely identified as CVE-2026-46119. The attack can only be initiated within the local network. No exploit exists.
You should upgrade the affected component.
GHSA
GHSA-7fj9-r9j7-5xwv: In the Linux kernel, the following vulnerability has been resolved:
libceph: Fix slab-out-of-bounds access in auth message processing
If a (potentia
ghsa_unreviewed·2026-05-28
CVE-2026-46119 GHSA-7fj9-r9j7-5xwv: In the Linux kernel, the following vulnerability has been resolved:
libceph: Fix slab-out-of-bounds access in auth message processing
If a (potentia
In the Linux kernel, the following vulnerability has been resolved:
libceph: Fix slab-out-of-bounds access in auth message processing
If a (potentially corrupted) message of type CEPH_MSG_AUTH_REPLY
contains a positive value in its result field, it is treated as an
error code by ceph_handle_auth_reply() and returned to
handle_auth_reply(). Thereafter, an attempt is made to send the
preallocated message of type CEPH_MSG_AUTH, where the returned value is
interpreted as the size of the front segment to send. If the result
value in the message is greater than the size of the memory buffer
allocated for the front segment, an out-of-bounds access occurs, and
the content of the memory region beyond this buffer is sent out.
This patch fixes the issue by treating only negative values in the
resu
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/1c439de70b1c3eb3c6bffa8245c16b9fc318f114https://git.kernel.org/stable/c/2ae0afd98432536562fa8261538ae795446f0589https://git.kernel.org/stable/c/38fdf04c602d52c42c67fc1617211492753b7e8bhttps://git.kernel.org/stable/c/408e85ee708b6aa03eeb0220ffa0915f4d407181https://git.kernel.org/stable/c/8517b6c8d2c759918ba0058cb6c7e14d59643202https://git.kernel.org/stable/c/b7df9fbd4869fdfe09a3f501ffd228486521e062https://git.kernel.org/stable/c/c2374b92c729d0388a538b3cde7b3e3b5e55ef39
2026-05-28
Published