CVE-2024-42305
published 2024-08-17CVE-2024-42305: In the Linux kernel, the following vulnerability has been resolved: ext4: check dot and dotdot of dx_root before making dir indexed Syzbot reports a issue as…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
13.2th percentile
In the Linux kernel, the following vulnerability has been resolved:
ext4: check dot and dotdot of dx_root before making dir indexed
Syzbot reports a issue as follows:
BUG: unable to handle page fault for address: ffffed11022e24fe
PGD 23ffee067 P4D 23ffee067 PUD 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 PID: 5079 Comm: syz-executor306 Not tainted 6.10.0-rc5-g55027e689933 #0
Call Trace:
make_indexed_dir+0xdaf/0x13c0 fs/ext4/namei.c:2341
ext4_add_entry+0x222a/0x25d0 fs/ext4/namei.c:2451
ext4_rename fs/ext4/namei.c:3936 [inline]
ext4_rename2+0x26e5/0x4370 fs/ext4/namei.c:4214
[...]
The immediate cause of this problem is that there is only one valid dentry
for the block to be split during do_split, so split==0 results in out of
bounds accesses to the map triggering the issue.
do_split
unsigned split
dx_make_map
count = 1
split = count/2 = 0;
continued = hash2 == map[split - 1].hash;
---> map[4294967295]
The maximum length of a filename is 255 and the minimum block size is 1024,
so it is always guaranteed that the number of entries is greater than or
equal to 2 when do_split() is called.
But syzbot's crafted image has no dot and dotdot in dir, and the dentry
distribution in dirblock is as follows:
bus dentry1 hole dentry2 free
|xx--|xx-------------|...............|xx-------------|...............|
0 12 (8+248)=256 268 256 524 (8+256)=264 788 236 1024
So when renaming dentry1 increases its name_len length by 1, neither hole
nor free is sufficient to hold the new dentry, and make_indexed_dir() is
called.
In make_indexed_dir() it is assumed that the first two entries of the
dirblock must be dot and dotdot, so bus and dentry1 are left in dx_root
because they are treated as dot and dotdot, and only dentry2 is moved
to the new leaf block. That's why count is equal to 1.
Therefore add the ext4_check_dx_root() helper function to add more sanity
checks to dot and dotdot before starting the conversion to avoid the above
issue.
Affected
26 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.106-1 (bookworm) | linux 6.1.106-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.106-1 (bookworm) | linux 6.1.106-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < b80575ffa98b5bb3a5d4d392bfe4c2e03e9557db | b80575ffa98b5bb3a5d4d392bfe4c2e03e9557db |
| linux | linux | >= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 19e13b4d7f0303186fcc891aba8d0de7c8fdbda8 | 19e13b4d7f0303186fcc891aba8d0de7c8fdbda8 |
| linux | linux | >= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 42d420517072028fb0eb852c358056b7717ba5aa | 42d420517072028fb0eb852c358056b7717ba5aa |
| linux | linux | >= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 8afe06ed3be7a874b3cd82ef5f8959aca8d6429a | 8afe06ed3be7a874b3cd82ef5f8959aca8d6429a |
| linux | linux | >= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < abb411ac991810c0bcbe51c2e76d2502bf611b5c | abb411ac991810c0bcbe51c2e76d2502bf611b5c |
| linux | linux | >= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 9d241b7a39af192d1bb422714a458982c7cc67a2 | 9d241b7a39af192d1bb422714a458982c7cc67a2 |
| linux | linux | >= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < cdd345321699042ece4a9d2e70754d2397d378c5 | cdd345321699042ece4a9d2e70754d2397d378c5 |
| linux | linux | >= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 50ea741def587a64e08879ce6c6a30131f7111e7 | 50ea741def587a64e08879ce6c6a30131f7111e7 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.226-1 | 5.10.226-1 |
| linux | linux_kernel | >= 0 < 6.1.106-1 | 6.1.106-1 |
| linux | linux_kernel | >= 0 < 6.10.3-1 | 6.10.3-1 |
| linux | linux_kernel | >= 0 < 6.10.3-1 | 6.10.3-1 |
| linux | linux_kernel | >= 0 < 5.4.0-200.220 | 5.4.0-200.220 |
| linux | linux_kernel | >= 0 < 5.15.0-125.135 | 5.15.0-125.135 |
| linux | linux_kernel | >= 0 < 6.8.0-50.51 | 6.8.0-50.51 |
| linux | linux_kernel | >= 2.6.20 < 4.19.320 | 4.19.320 |
| linux | linux_kernel | >= 4.20 < 5.4.282 | 5.4.282 |
| linux | linux_kernel | >= 5.11 < 5.15.165 | 5.15.165 |
| linux | linux_kernel | >= 5.16 < 6.1.103 | 6.1.103 |
| linux | linux_kernel | >= 5.5 < 5.10.224 | 5.10.224 |
| linux | linux_kernel | >= 6.2 < 6.6.44 | 6.6.44 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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An attacker could possibly use these to compromise the system.
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An attacker could possibly use these to compromise the system.
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- PowerPC architecture;
- User-Mode Linux (UML);
- x86 architecture;
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
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- PowerPC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
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kernel contained an integer overflow vulnerability. A local attacker could
use this to cause a denial of service (system crash). (CVE-2022-36402)
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- CPU frequency scaling framework;
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GHSA
GHSA-46jx-3cg2-9964: In the Linux kernel, the following vulnerability has been resolved:
ext4: check dot and dotdot of dx_root before making dir indexed
Syzbot reports a
ghsa_unreviewed·2024-08-17
CVE-2024-42305 [MEDIUM] CWE-125 GHSA-46jx-3cg2-9964: In the Linux kernel, the following vulnerability has been resolved:
ext4: check dot and dotdot of dx_root before making dir indexed
Syzbot reports a
In the Linux kernel, the following vulnerability has been resolved:
ext4: check dot and dotdot of dx_root before making dir indexed
Syzbot reports a issue as follows:
BUG: unable to handle page fault for address: ffffed11022e24fe
PGD 23ffee067 P4D 23ffee067 PUD 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 PID: 5079 Comm: syz-executor306 Not tainted 6.10.0-rc5-g55027e689933 #0
Call Trace:
make_indexed_dir+0xdaf/0x13c0 fs/ext4/namei.c:2341
ext4_add_entry+0x222a/0x25d0 fs/ext4/namei.c:2451
ext4_rename fs/ext4/namei.c:3936 [inline]
ext4_rename2+0x26e5/0x4370 fs/ext4/namei.c:4214
[...]
The immediate cause of this problem is that there is only one valid dentry
for the block to be split during do_split, so split==0 results in out of
bounds accesses to the map triggering the issue.
do
OSV
CVE-2024-42305: In the Linux kernel, the following vulnerability has been resolved: ext4: check dot and dotdot of dx_root before making dir indexed Syzbot reports a i
osv·2024-08-17·CVSS 5.5
CVE-2024-42305 [MEDIUM] CVE-2024-42305: In the Linux kernel, the following vulnerability has been resolved: ext4: check dot and dotdot of dx_root before making dir indexed Syzbot reports a i
In the Linux kernel, the following vulnerability has been resolved: ext4: check dot and dotdot of dx_root before making dir indexed Syzbot reports a issue as follows: ============================================ BUG: unable to handle page fault for address: ffffed11022e24fe PGD 23ffee067 P4D 23ffee067 PUD 0 Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 5079 Comm: syz-executor306 Not tainted 6.10.0-rc5-g55027e689933 #0 Call Trace: make_indexed_dir+0xdaf/0x13c0 fs/ext4/namei.c:2341 ext4_add_entry+0x222a/0x25d0 fs/ext4/namei.c:2451 ext4_rename fs/ext4/namei.c:3936 [inline] ext4_rename2+0x26e5/0x4370 fs/ext4/namei.c:4214 [...] ============================================ The immediate cause of this problem is that there is only one valid dentry for the block to be split during do_spl
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-01-09·CVSS 8.8
CVE-2024-50006 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux
kernel contained a type-confusion error. A physically proximate remote
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2020-12351)
Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux
kernel did not properly initialize memory in some situations. A physically
proximate remote attacker could use this to expose sensitive information
(kernel memory). (CVE-2020-12352)
Andy Nguyen discovered that the Bluetooth HCI event packet parser in the
Linux kernel did not properly handle event advertisements of certain sizes,
leading to a
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-01-09
CVE-2024-43827 Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) 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;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware mon
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2025-01-06
CVE-2024-46727 Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) 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;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monit
Ubuntu
Linux kernel (GKE) vulnerabilities
vendor_ubuntu·2024-12-12·CVSS 5.5
CVE-2024-42089 [MEDIUM] Linux kernel (GKE) vulnerabilities
Title: Linux kernel (GKE) 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;
- 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
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2024-12-12
CVE-2024-43846 Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) 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;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware mo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-12-12
CVE-2024-43895 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;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring
Ubuntu
Linux kernel (Intel IoTG) vulnerabilities
vendor_ubuntu·2024-12-09·CVSS 8.8
CVE-2024-43846 [HIGH] Linux kernel (Intel IoTG) vulnerabilities
Title: Linux kernel (Intel IoTG) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in the
Linux kernel for x86 platforms did not properly handle 32-bit emulation on
TDX and SEV. An attacker with access to the VMM could use this to cause a
denial of service (guest crash) or possibly execute arbitrary code.
(CVE-2024-25744)
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;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 arch
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2024-11-20·CVSS 7.1
CVE-2024-46752 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) 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 validate certain SMB messages, leading to an
out-of-bounds read vulnerability. An attacker could use this to cause a
denial of service (system crash) or possibly expose sensitive information.
(CVE-2023-6610)
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in the
Linux kernel for x86 platforms did not properly handle 32-bit emulation on
TDX and SEV. An attacker with access to the VMM could use this to cause a
denial of service (guest crash) or possibly execute arbitrary code.
(CVE-2024-25744
Ubuntu
Linux kernel (IoT) vulnerabilities
vendor_ubuntu·2024-11-19·CVSS 6.3
CVE-2024-46828 [MEDIUM] Linux kernel (IoT) vulnerabilities
Title: Linux kernel (IoT) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux
kernel contained an integer overflow vulnerability. A local attacker could
use this to cause a denial of service (system crash). (CVE-2022-36402)
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;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- CPU frequency scaling framework;
- Device frequency scaling
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-14·CVSS 6.3
CVE-2024-46815 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the
Linux kernel contained an integer overflow vulnerability. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2022-36402)
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;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- CPU frequency scaling framework;
- Device frequency scaling framew
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-12·CVSS 8.8
CVE-2024-46815 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
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;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- B
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-11·CVSS 8.8
CVE-2024-43908 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
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;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- B
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-07·CVSS 6.3
CVE-2024-42244 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the
Linux kernel contained an integer overflow vulnerability. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2022-36402)
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;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- CPU frequency scaling framework;
- Device frequency scaling framew
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-06·CVSS 6.3
CVE-2024-46822 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the
Linux kernel contained an integer overflow vulnerability. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2022-36402)
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;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- CPU frequency scaling framework;
- Device frequency scaling framew
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-04·CVSS 6.3
CVE-2024-44965 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the
Linux kernel contained an integer overflow vulnerability. A local
attacker could use this to cause a denial of service (system crash).
(CVE-2022-36402)
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;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- CPU frequency scaling framework;
- Device frequency scaling framew
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-10-31·CVSS 6.3
CVE-2024-42131 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux
kernel contained an integer overflow vulnerability. A local attacker could
use this to cause a denial of service (system crash). (CVE-2022-36402)
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;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- CPU frequency scaling framework;
- Device frequency scaling framew
Red Hat
kernel: ext4: check dot and dotdot of dx_root before making dir indexed
vendor_redhat·2024-08-17·CVSS 5.5
CVE-2024-42305 [MEDIUM] CWE-125 kernel: ext4: check dot and dotdot of dx_root before making dir indexed
kernel: ext4: check dot and dotdot of dx_root before making dir indexed
In the Linux kernel, the following vulnerability has been resolved:
ext4: check dot and dotdot of dx_root before making dir indexed
Syzbot reports a issue as follows:
BUG: unable to handle page fault for address: ffffed11022e24fe
PGD 23ffee067 P4D 23ffee067 PUD 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 PID: 5079 Comm: syz-executor306 Not tainted 6.10.0-rc5-g55027e689933 #0
Call Trace:
make_indexed_dir+0xdaf/0x13c0 fs/ext4/namei.c:2341
ext4_add_entry+0x222a/0x25d0 fs/ext4/namei.c:2451
ext4_rename fs/ext4/namei.c:3936 [inline]
ext4_rename2+0x26e5/0x4370 fs/ext4/namei.c:4214
[...]
The immediate cause of this problem is that there is only one valid dentry
for the block to be split during do_split, so split==0
Debian
CVE-2024-42305: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: check...
vendor_debian·2024·CVSS 5.5
CVE-2024-42305 [MEDIUM] CVE-2024-42305: linux - In the Linux kernel, the following vulnerability has been resolved: ext4: check...
In the Linux kernel, the following vulnerability has been resolved: ext4: check dot and dotdot of dx_root before making dir indexed Syzbot reports a issue as follows: ============================================ BUG: unable to handle page fault for address: ffffed11022e24fe PGD 23ffee067 P4D 23ffee067 PUD 0 Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 5079 Comm: syz-executor306 Not tainted 6.10.0-rc5-g55027e689933 #0 Call Trace: make_indexed_dir+0xdaf/0x13c0 fs/ext4/namei.c:2341 ext4_add_entry+0x222a/0x25d0 fs/ext4/namei.c:2451 ext4_rename fs/ext4/namei.c:3936 [inline] ext4_rename2+0x26e5/0x4370 fs/ext4/namei.c:4214 [...] ============================================ The immediate cause of this problem is that there is only one valid dentry for the block to be split during do_spl
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/19e13b4d7f0303186fcc891aba8d0de7c8fdbda8https://git.kernel.org/stable/c/42d420517072028fb0eb852c358056b7717ba5aahttps://git.kernel.org/stable/c/50ea741def587a64e08879ce6c6a30131f7111e7https://git.kernel.org/stable/c/8afe06ed3be7a874b3cd82ef5f8959aca8d6429ahttps://git.kernel.org/stable/c/9d241b7a39af192d1bb422714a458982c7cc67a2https://git.kernel.org/stable/c/abb411ac991810c0bcbe51c2e76d2502bf611b5chttps://git.kernel.org/stable/c/b80575ffa98b5bb3a5d4d392bfe4c2e03e9557dbhttps://git.kernel.org/stable/c/cdd345321699042ece4a9d2e70754d2397d378c5https://lists.debian.org/debian-lts-announce/2024/10/msg00003.htmlhttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-265688.html
2024-08-17
Published