CVE-2025-21973
published 2025-04-01CVE-2025-21973: In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx} When qstats-get operation…
PriorityP429high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.18%
7.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}
When qstats-get operation is executed, callbacks of netdev_stats_ops
are called. The bnxt_get_queue_stats{rx | tx} collect per-queue stats
from sw_stats in the rings.
But {rx | tx | cp}_ring are allocated when the interface is up.
So, these rings are not allocated when the interface is down.
The qstats-get is allowed even if the interface is down. However,
the bnxt_get_queue_stats{rx | tx}() accesses cp_ring and tx_ring
without null check.
So, it needs to avoid accessing rings if the interface is down.
Reproducer:
ip link set $interface down
./cli.py --spec netdev.yaml --dump qstats-get
OR
ip link set $interface down
python ./stats.py
Splat looks like:
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 1680fa067 P4D 1680fa067 PUD 16be3b067 PMD 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 0 UID: 0 PID: 1495 Comm: python3 Not tainted 6.14.0-rc4+ #32 5cd0f999d5a15c574ac72b3e4b907341
Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021
RIP: 0010:bnxt_get_queue_stats_rx+0xf/0x70 [bnxt_en]
Code: c6 87 b5 18 00 00 02 eb a2 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 01
RSP: 0018:ffffabef43cdb7e0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffffc04c8710 RCX: 0000000000000000
RDX: ffffabef43cdb858 RSI: 0000000000000000 RDI: ffff8d504e850000
RBP: ffff8d506c9f9c00 R08: 0000000000000004 R09: ffff8d506bcd901c
R10: 0000000000000015 R11: ffff8d506bcd9000 R12: 0000000000000000
R13: ffffabef43cdb8c0 R14: ffff8d504e850000 R15: 0000000000000000
FS: 00007f2c5462b080(0000) GS:ffff8d575f600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000167fd0000 CR4: 00000000007506f0
PKRU: 55555554
Call Trace:
? __die+0x20/0x70
? page_fault_oops+0x15a
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.12.20-1 (forky) | linux 6.12.20-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= af7b3b4adda592cb49e202f3617454d5dda4c5b5 < f059a0fd733078c3832fd0f3a3037aa5975d3d36 | f059a0fd733078c3832fd0f3a3037aa5975d3d36 |
| linux | linux | >= af7b3b4adda592cb49e202f3617454d5dda4c5b5 < adb830085f0fc3a09a0fc8b64fed2e7c8d244665 | adb830085f0fc3a09a0fc8b64fed2e7c8d244665 |
| linux | linux | >= af7b3b4adda592cb49e202f3617454d5dda4c5b5 < f09af5fdfbd9b0fcee73aab1116904c53b199e97 | f09af5fdfbd9b0fcee73aab1116904c53b199e97 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.12.20-1 | 6.12.20-1 |
| linux | linux_kernel | >= 0 < 6.12.20-1 | 6.12.20-1 |
| linux | linux_kernel | >= 6.13 < 6.13.8 | 6.13.8 |
| linux | linux_kernel | >= 6.9 < 6.12.20 | 6.12.20 |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv7.1HIGH
vendor_debian7.1LOW
vendor_redhat7.1HIGH
vendor_ubuntu5.9MEDIUM
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CVE-2025-21973: In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx} When qstats-get o
osv·2025-04-01·CVSS 7.1
CVE-2025-21973 [HIGH] CVE-2025-21973: In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx} When qstats-get o
In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx} When qstats-get operation is executed, callbacks of netdev_stats_ops are called. The bnxt_get_queue_stats{rx | tx} collect per-queue stats from sw_stats in the rings. But {rx | tx | cp}_ring are allocated when the interface is up. So, these rings are not allocated when the interface is down. The qstats-get is allowed even if the interface is down. However, the bnxt_get_queue_stats{rx | tx}() accesses cp_ring and tx_ring without null check. So, it needs to avoid accessing rings if the interface is down. Reproducer: ip link set $interface down ./cli.py --spec netdev.yaml --dump qstats-get OR ip link set $interface down python ./stats.py Splat looks like: BUG: k
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eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}
When qstats-get
ghsa_unreviewed·2025-04-01
CVE-2025-21973 [HIGH] GHSA-fhg3-8v6r-3g42: In the Linux kernel, the following vulnerability has been resolved:
eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}
When qstats-get
In the Linux kernel, the following vulnerability has been resolved:
eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}
When qstats-get operation is executed, callbacks of netdev_stats_ops
are called. The bnxt_get_queue_stats{rx | tx} collect per-queue stats
from sw_stats in the rings.
But {rx | tx | cp}_ring are allocated when the interface is up.
So, these rings are not allocated when the interface is down.
The qstats-get is allowed even if the interface is down. However,
the bnxt_get_queue_stats{rx | tx}() accesses cp_ring and tx_ring
without null check.
So, it needs to avoid accessing rings if the interface is down.
Reproducer:
ip link set $interface down
./cli.py --spec netdev.yaml --dump qstats-get
OR
ip link set $interface down
python ./stats.py
Splat looks like:
B
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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:
- ARM32 architecture;
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Compute Acceleration Framework;
- ACPI drivers;
- Ublk userspace block driver;
- Compressed RAM block device driver;
- Bus devices;
- AMD CDX bus driver;
- Clock framework and drivers;
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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:
- ARM32 architecture;
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Compute Acceleration Framework;
- ACPI drivers;
- Ublk userspace block driver;
- Compressed RAM block device driver;
- Bus devices;
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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:
- ARM32 architecture;
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Compute Acceleration Framework;
- ACPI drivers;
- Ublk userspace block driver;
- Compressed RAM block device driver;
- Bus devices;
- AMD CDX bus driver;
- Clock framework and drivers;
- DMA engi
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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:
- ARM32 architecture;
- ARM64 architecture;
- PowerPC architecture;
- x86 architecture;
- Compute Acceleration Framework;
- ACPI drivers;
- Ublk userspace block driver;
- Compressed RAM block device driver;
- Bus devices;
- AMD CDX bus driver;
- Clock framework and drivers;
- DM
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kernel: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}
vendor_redhat·2025-04-01·CVSS 7.1
CVE-2025-21973 [HIGH] CWE-476 kernel: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}
kernel: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}
In the Linux kernel, the following vulnerability has been resolved:
eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx}
When qstats-get operation is executed, callbacks of netdev_stats_ops
are called. The bnxt_get_queue_stats{rx | tx} collect per-queue stats
from sw_stats in the rings.
But {rx | tx | cp}_ring are allocated when the interface is up.
So, these rings are not allocated when the interface is down.
The qstats-get is allowed even if the interface is down. However,
the bnxt_get_queue_stats{rx | tx}() accesses cp_ring and tx_ring
without null check.
So, it needs to avoid accessing rings if the interface is down.
Reproducer:
ip link set $interface down
./cli.py --spec netdev.yaml --dump qstats-get
Debian
CVE-2025-21973: linux - In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: ...
vendor_debian·2025·CVSS 7.1
CVE-2025-21973 [HIGH] CVE-2025-21973: linux - In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: ...
In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fix kernel panic in the bnxt_get_queue_stats{rx | tx} When qstats-get operation is executed, callbacks of netdev_stats_ops are called. The bnxt_get_queue_stats{rx | tx} collect per-queue stats from sw_stats in the rings. But {rx | tx | cp}_ring are allocated when the interface is up. So, these rings are not allocated when the interface is down. The qstats-get is allowed even if the interface is down. However, the bnxt_get_queue_stats{rx | tx}() accesses cp_ring and tx_ring without null check. So, it needs to avoid accessing rings if the interface is down. Reproducer: ip link set $interface down ./cli.py --spec netdev.yaml --dump qstats-get OR ip link set $interface down python ./stats.py Splat looks like: BUG: k
No detection rules found.
No public exploits indexed.
2025-04-01
Published