A server-side request forgery (SSRF) vulnerability exist in the Liferay Portal 7.4.0 through 7.4.3.131, and Liferay DXP 2024.Q4.0 through 2024.Q4.7, 2024.Q3.0 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13 and 2024.Q1.1 through 2024.Q1.20 that affects custom object attachment fields. This flaw allows an attacker to manipulate the application into making unauthorized requests to other instances, creating new object entries that link to external resources.
LinkAce is a self-hosted archive to collect website links. A stored cross-site scripting (XSS) vulnerability was discovered in versions prior to 2.1.9 that allows an attacker to inject arbitrary JavaScript, which is then executed in the context of a user's browser when the malicious link is clicked. This is a one-click XSS, meaning the victim only needs to click a crafted link — no further interaction is required. The application contains a stored XSS vulnerability due to insufficient filtering and escaping of user-supplied data inserted into link attributes. Malicious JavaScript code can be saved in the database along with the link and executed in the user’s browser when clicking the link, leading to arbitrary script execution within the context of the site. Version 2.1.9 fixes the issue.
Dell PowerScale OneFS, versions prior to 9.12.0.0, contains an improper privilege management vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to elevation of privileges.
A vulnerability was determined in SimStudioAI sim up to 1.0.0. This affects an unknown function of the file apps/sim/app/api/files/parse/route.ts. Executing manipulation of the argument filePath can lead to server-side request forgery. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. This patch is called 3424a338b763115f0269b209e777608e4cd31785. Applying a patch is advised to resolve this issue.
Cpanel::JSON::XS before version 4.40 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact
Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform valid GPU memory processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r41p0 through r49p4, from r50p0 through r51p0; Valhall GPU Kernel Driver: from r41p0 through r49p4, from r50p0 through r54p0; Arm 5th Gen GPU Architecture Kernel Driver: from r41p0 through r49p4, from r50p0 through r54p0.
Deserialization of Untrusted Data vulnerability in Apache Jackrabbit Core and Apache Jackrabbit JCR Commons.
This issue affects Apache Jackrabbit Core: from 1.0.0 through 2.22.1; Apache Jackrabbit JCR Commons: from 1.0.0 through 2.22.1.
Deployments that accept JNDI URIs for JCR lookup from untrusted users allows them to inject malicious JNDI references, potentially leading to arbitrary code execution through deserialization of untrusted data.
Users are recommended to upgrade to version 2.22.2. JCR lookup through JNDI has been disabled by default in 2.22.2. Users of this feature need to enable it explicitly and are adviced to review their use of JNDI URI for JCR lookup.
A security vulnerability has been detected in SourceCodester Pet Grooming Management Software 1.0. Impacted is an unknown function of the file /admin/profit_report.php. Such manipulation of the argument product_id leads to sql injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
A weakness has been identified in fuyang_lipengjun platform 1.0.0. This issue affects the function queryAll of the file /adposition/queryAll of the component AdPositionController. This manipulation causes improper authorization. The attack can be initiated remotely. The exploit has been made available to the public and could be exploited. Affects another part than CVE-2025-9936.
A security flaw has been discovered in SourceCodester Pet Grooming Management Software 1.0. This vulnerability affects unknown code of the file manage_website.php. The manipulation results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been released to the public and may be exploited.
A vulnerability was identified in elunez eladmin up to 2.7. This affects the function queryErrorLogDetail of the file /api/logs/error/1 of the component SysLogController. The manipulation leads to improper authorization. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
A vulnerability was determined in SourceCodester Pet Grooming Management Software 1.0. Affected by this issue is some unknown functionality of the file /admin/profile.php. Executing manipulation can lead to unrestricted upload. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.
A flaw has been found in SourceCodester Pet Management System 1.0. This impacts an unknown function of the file /admin/profile.php. This manipulation of the argument website_image causes unrestricted upload. Remote exploitation of the attack is possible. The exploit has been published and may be used.
In the Linux kernel, the following vulnerability has been resolved:
team: replace team lock with rtnl lock
syszbot reports various ordering issues for lower instance locks and
team lock. Switch to using rtnl lock for protecting team device,
similar to bonding. Based on the patch by Tetsuo Handa.
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: fix sleeping-in-atomic in ath11k_mac_op_set_bitrate_mask()
ath11k_mac_disable_peer_fixed_rate() is passed as the iterator to
ieee80211_iterate_stations_atomic(). Note in this case the iterator is
required to be atomic, however ath11k_mac_disable_peer_fixed_rate() does
not follow it as it might sleep. Consequently below warning is seen:
BUG: sleeping function called from invalid context at wmi.c:304
Call Trace:
<TASK>
dump_stack_lvl
__might_resched.cold
ath11k_wmi_cmd_send
ath11k_wmi_set_peer_param
ath11k_mac_disable_peer_fixed_rate
ieee80211_iterate_stations_atomic
ath11k_mac_op_set_bitrate_mask.cold
Change to ieee80211_iterate_stations_mtx() to fix this issue.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30
In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Fix dereferencing uninitialized error pointer
Fix below smatch warnings:
drivers/crypto/ccp/sev-dev.c:1312 __sev_platform_init_locked()
error: we previously assumed 'error' could be null
IBM MQ LTS 9.1.0.0 through 9.1.0.29, 9.2.0.0 through 9.2.0.36, 9.3.0.0 through 9.3.0.30 and 9.4.0.0 through 9.4.0.12 and IBM MQ CD 9.3.0.0 through 9.3.5.1 and 9.4.0.0 through 9.4.3.0 Java and JMS stores a password in client configuration files when trace is enabled which can be read by a local user.
fs2 is a compositional, streaming I/O library for Scala. Versions up to and including 2.5.12, 3.0.0-M1 through 3.12.2, and 3.13.0-M1 through 3.13.0-M6 are vulnerable to denial of service attacks though TLS sessions using fs2-io on the JVM using the fs2.io.net.tls package. When establishing a TLS session, if one side of the connection shuts down `write` while the peer side is awaiting more data to progress the TLS handshake, the peer side will spin loop on the socket read, fully utilizing a CPU. The CPU is consumed until the overall connection is closed, potentially shutting down a fs2-io powered server. This issue is fixed in versions 2.5.13, 3.12.1, and 3.13.0-M7.
An authorized user can cause a crash in the MongoDB Server through a specially crafted $group query. This vulnerability is related to the incorrect handling of certain accumulator functions when additional parameters are specified within the $group operation. This vulnerability could lead to denial of service if triggered repeatedly. This issue affects MongoDB Server v6.0 versions prior to 6.0.25, MongoDB Server v7.0 versions prior to 7.0.22, MongoDB Server v8.0 versions prior to 8.0.12 and MongoDB Server v8.1 versions prior to 8.1.2
A flaw was found in Keycloak. Keycloak’s account console and other pages accept arbitrary text in the error_description query parameter. This text is directly rendered in error pages without validation or sanitization. While HTML encoding prevents XSS, an attacker can craft URLs with misleading messages (e.g., fake support phone numbers or URLs), which are displayed within the trusted Keycloak UI. This creates a phishing vector, potentially tricking users into contacting malicious actors.
In the Linux kernel, the following vulnerability has been resolved:
s390/ism: fix concurrency management in ism_cmd()
The s390x ISM device data sheet clearly states that only one
request-response sequence is allowable per ISM function at any point in
time. Unfortunately as of today the s390/ism driver in Linux does not
honor that requirement. This patch aims to rectify that.
This problem was discovered based on Aliaksei's bug report which states
that for certain workloads the ISM functions end up entering error state
(with PEC 2 as seen from the logs) after a while and as a consequence
connections handled by the respective function break, and for future
connection requests the ISM device is not considered -- given it is in a
dysfunctional state. During further debugging PEC 3A was observed as
well.
A kernel message like
[ 1211.244319] zpci: 061a:00:00.0: Event 0x2 reports an error for PCI function 0x61a
is a reliable indicator of the stated function entering error state
with PEC 2. Let me also point out that a kernel message like
[ 1211.244325] zpci: 061a:00:00.0: The ism driver bound to the device does not support error recovery
is a reliable indicator that the ISM function won't be auto-recovered
because the ISM driver currently lacks support for it.
On a technical level, without this synchronization, commands (inputs to
the FW) may be partially or fully overwritten (corrupted) by another CPU
trying to issue commands on the same function. There is hard evidence that
this can lead to DMB token values being used as DMB IOVAs, leading to
PEC 2 PCI events indicating invalid DMA. But this is only one of the
failure modes imaginable. In theory even completely losing one command
and executing another one twice and then trying to interpret the outputs
as if the command we intended to execute was actually executed and not
the other one is also possible. Frankly, I don't feel confident about
providing an exhaustive list of possible consequences.
In the Linux kernel, the following vulnerability has been resolved:
mm/vmscan: fix hwpoisoned large folio handling in shrink_folio_list
In shrink_folio_list(), the hwpoisoned folio may be large folio, which
can't be handled by unmap_poisoned_folio(). For THP, try_to_unmap_one()
must be passed with TTU_SPLIT_HUGE_PMD to split huge PMD first and then
retry. Without TTU_SPLIT_HUGE_PMD, we will trigger null-ptr deref of
pvmw.pte. Even we passed TTU_SPLIT_HUGE_PMD, we will trigger a
WARN_ON_ONCE due to the page isn't in swapcache.
Since UCE is rare in real world, and race with reclaimation is more rare,
just skipping the hwpoisoned large folio is enough. memory_failure() will
handle it if the UCE is triggered again.
This happens when memory reclaim for large folio races with
memory_failure(), and will lead to kernel panic. The race is as
follows:
cpu0 cpu1
shrink_folio_list memory_failure
TestSetPageHWPoison
unmap_poisoned_folio
--> trigger BUG_ON due to
unmap_poisoned_folio couldn't
handle large folio
[tujinjiang@huawei.com: add comment to unmap_poisoned_folio()]
In the Linux kernel, the following vulnerability has been resolved:
crypto: caam - Prevent crash on suspend with iMX8QM / iMX8ULP
Since the CAAM on these SoCs is managed by another ARM core, called the
SECO (Security Controller) on iMX8QM and Secure Enclave on iMX8ULP, which
also reserves access to register page 0 suspend operations cannot touch
this page.
This is similar to when running OPTEE, where OPTEE will reserve page 0.
Track this situation using a new state variable no_page0, reflecting if
page 0 is reserved elsewhere, either by other management cores in SoC or
by OPTEE.
Replace the optee_en check in suspend/resume with the new check.
optee_en cannot go away as it's needed elsewhere to gate OPTEE specific
situations.
Fixes the following splat at suspend:
Internal error: synchronous external abort: 0000000096000010 [#1] SMP
Hardware name: Freescale i.MX8QXP ACU6C (DT)
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : readl+0x0/0x18
lr : rd_reg32+0x18/0x3c
sp : ffffffc08192ba20
x29: ffffffc08192ba20 x28: ffffff8025190000 x27: 0000000000000000
x26: ffffffc0808ae808 x25: ffffffc080922338 x24: ffffff8020e89090
x23: 0000000000000000 x22: ffffffc080922000 x21: ffffff8020e89010
x20: ffffffc080387ef8 x19: ffffff8020e89010 x18: 000000005d8000d5
x17: 0000000030f35963 x16: 000000008f785f3f x15: 000000003b8ef57c
x14: 00000000c418aef8 x13: 00000000f5fea526 x12: 0000000000000001
x11: 0000000000000002 x10: 0000000000000001 x9 : 0000000000000000
x8 : ffffff8025190870 x7 : ffffff8021726880 x6 : 0000000000000002
x5 : ffffff80217268f0 x4 : ffffff8021726880 x3 : ffffffc081200000
x2 : 0000000000000001 x1 : ffffff8020e89010 x0 : ffffffc081200004
Call trace:
readl+0x0/0x18
caam_ctrl_suspend+0x30/0xdc
dpm_run_callback.constprop.0+0x24/0x5c
device_suspend+0x170/0x2e8
dpm_suspend+0xa0/0x104
dpm_suspend_start+0x48/0x50
suspend_devices_and_enter+0x7c/0x45c
pm_suspend+0x148/0x160
state_store+0xb4/0xf8
kobj_attr_store+0x14/0x24
sysfs_kf_write+0x38/0x48
kernfs_fop_write_iter+0xb4/0x178
vfs_write+0x118/0x178
ksys_write+0x6c/0xd0
__arm64_sys_write+0x14/0x1c
invoke_syscall.constprop.0+0x64/0xb0
do_el0_svc+0x90/0xb0
el0_svc+0x18/0x44
el0t_64_sync_handler+0x88/0x124
el0t_64_sync+0x150/0x154
Code: 88dffc21 88dffc21 5ac00800 d65f03c0 (b9400000)
In the Linux kernel, the following vulnerability has been resolved:
crypto: qat - flush misc workqueue during device shutdown
Repeated loading and unloading of a device specific QAT driver, for
example qat_4xxx, in a tight loop can lead to a crash due to a
use-after-free scenario. This occurs when a power management (PM)
interrupt triggers just before the device-specific driver (e.g.,
qat_4xxx.ko) is unloaded, while the core driver (intel_qat.ko) remains
loaded.
Since the driver uses a shared workqueue (`qat_misc_wq`) across all
devices and owned by intel_qat.ko, a deferred routine from the
device-specific driver may still be pending in the queue. If this
routine executes after the driver is unloaded, it can dereference freed
memory, resulting in a page fault and kernel crash like the following:
BUG: unable to handle page fault for address: ffa000002e50a01c
#PF: supervisor read access in kernel mode
RIP: 0010:pm_bh_handler+0x1d2/0x250 [intel_qat]
Call Trace:
pm_bh_handler+0x1d2/0x250 [intel_qat]
process_one_work+0x171/0x340
worker_thread+0x277/0x3a0
kthread+0xf0/0x120
ret_from_fork+0x2d/0x50
To prevent this, flush the misc workqueue during device shutdown to
ensure that all pending work items are completed before the driver is
unloaded.
Note: This approach may slightly increase shutdown latency if the
workqueue contains jobs from other devices, but it ensures correctness
and stability.
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix refcount leak causing resource not released
When ksmbd_conn_releasing(opinfo->conn) returns true,the refcount was not
decremented properly, causing a refcount leak that prevents the count from
reaching zero and the memory from being released.
In the Linux kernel, the following vulnerability has been resolved:
vsock/virtio: Validate length in packet header before skb_put()
When receiving a vsock packet in the guest, only the virtqueue buffer
size is validated prior to virtio_vsock_skb_rx_put(). Unfortunately,
virtio_vsock_skb_rx_put() uses the length from the packet header as the
length argument to skb_put(), potentially resulting in SKB overflow if
the host has gone wonky.
Validate the length as advertised by the packet header before calling
virtio_vsock_skb_rx_put().
In the Linux kernel, the following vulnerability has been resolved:
parisc: Revise __get_user() to probe user read access
Because of the way read access support is implemented, read access
interruptions are only triggered at privilege levels 2 and 3. The
kernel executes at privilege level 0, so __get_user() never triggers
a read access interruption (code 26). Thus, it is currently possible
for user code to access a read protected address via a system call.
Fix this by probing read access rights at privilege level 3 (PRIV_USER)
and setting __gu_err to -EFAULT (-14) if access isn't allowed.
Note the cmpiclr instruction does a 32-bit compare because COND macro
doesn't work inside asm.
In the Linux kernel, the following vulnerability has been resolved:
parisc: Revise gateway LWS calls to probe user read access
We use load and stbys,e instructions to trigger memory reference
interruptions without writing to memory. Because of the way read
access support is implemented, read access interruptions are only
triggered at privilege levels 2 and 3. The kernel and gateway
page execute at privilege level 0, so this code never triggers
a read access interruption. Thus, it is currently possible for
user code to execute a LWS compare and swap operation at an
address that is read protected at privilege level 3 (PRIV_USER).
Fix this by probing read access rights at privilege level 3 and
branching to lws_fault if access isn't allowed.
In the Linux kernel, the following vulnerability has been resolved:
media: rainshadow-cec: fix TOCTOU race condition in rain_interrupt()
In the interrupt handler rain_interrupt(), the buffer full check on
rain->buf_len is performed before acquiring rain->buf_lock. This
creates a Time-of-Check to Time-of-Use (TOCTOU) race condition, as
rain->buf_len is concurrently accessed and modified in the work
handler rain_irq_work_handler() under the same lock.
Multiple interrupt invocations can race, with each reading buf_len
before it becomes full and then proceeding. This can lead to both
interrupts attempting to write to the buffer, incrementing buf_len
beyond its capacity (DATA_SIZE) and causing a buffer overflow.
Fix this bug by moving the spin_lock() to before the buffer full
check. This ensures that the check and the subsequent buffer modification
are performed atomically, preventing the race condition. An corresponding
spin_unlock() is added to the overflow path to correctly release the
lock.
This possible bug was found by an experimental static analysis tool
developed by our team.
In the Linux kernel, the following vulnerability has been resolved:
media: mt9m114: Fix deadlock in get_frame_interval/set_frame_interval
Getting / Setting the frame interval using the V4L2 subdev pad ops
get_frame_interval/set_frame_interval causes a deadlock, as the
subdev state is locked in the [1] but also in the driver itself.
In [2] it's described that the caller is responsible to acquire and
release the lock in this case. Therefore, acquiring the lock in the
driver is wrong.
Remove the lock acquisitions/releases from mt9m114_ifp_get_frame_interval()
and mt9m114_ifp_set_frame_interval().
[1] drivers/media/v4l2-core/v4l2-subdev.c - line 1129
[2] Documentation/driver-api/media/v4l2-subdev.rst
In the Linux kernel, the following vulnerability has been resolved:
media: venus: protect against spurious interrupts during probe
Make sure the interrupt handler is initialized before the interrupt is
registered.
If the IRQ is registered before hfi_create(), it's possible that an
interrupt fires before the handler setup is complete, leading to a NULL
dereference.
This error condition has been observed during system boot on Rb3Gen2.
In the Linux kernel, the following vulnerability has been resolved:
media: iris: Fix NULL pointer dereference
A warning reported by smatch indicated a possible null pointer
dereference where one of the arguments to API
"iris_hfi_gen2_handle_system_error" could sometimes be null.
To fix this, add a check to validate that the argument passed is not
null before accessing its members.
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: check if hubbub is NULL in debugfs/amdgpu_dm_capabilities
HUBBUB structure is not initialized on DCE hardware, so check if it is NULL
to avoid null dereference while accessing amdgpu_dm_capabilities file in
debugfs.
In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Destroy KFD debugfs after destroy KFD wq
Since KFD proc content was moved to kernel debugfs, we can't destroy KFD
debugfs before kfd_process_destroy_wq. Move kfd_process_destroy_wq prior
to kfd_debugfs_fini to fix a kernel NULL pointer problem. It happens
when /sys/kernel/debug/kfd was already destroyed in kfd_debugfs_fini but
kfd_process_destroy_wq calls kfd_debugfs_remove_process. This line
debugfs_remove_recursive(entry->proc_dentry);
tries to remove /sys/kernel/debug/kfd/proc/<pid> while
/sys/kernel/debug/kfd is already gone. It hangs the kernel by kernel
NULL pointer.
(cherry picked from commit 0333052d90683d88531558dcfdbf2525cc37c233)
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: fix a Null pointer dereference vulnerability
[Why]
A null pointer dereference vulnerability exists in the AMD display driver's
(DC module) cleanup function dc_destruct().
When display control context (dc->ctx) construction fails
(due to memory allocation failure), this pointer remains NULL.
During subsequent error handling when dc_destruct() is called,
there's no NULL check before dereferencing the perf_trace member
(dc->ctx->perf_trace), causing a kernel null pointer dereference crash.
[How]
Check if dc->ctx is non-NULL before dereferencing.
(Updated commit text and removed unnecessary error message)
(cherry picked from commit 9dd8e2ba268c636c240a918e0a31e6feaee19404)
In the Linux kernel, the following vulnerability has been resolved:
LoongArch: KVM: Fix stack protector issue in send_ipi_data()
Function kvm_io_bus_read() is called in function send_ipi_data(), buffer
size of parameter *val should be at least 8 bytes. Since some emulation
functions like loongarch_ipi_readl() and kvm_eiointc_read() will write
the buffer *val with 8 bytes signed extension regardless parameter len.
Otherwise there will be buffer overflow issue when CONFIG_STACKPROTECTOR
is enabled. The bug report is shown as follows:
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: send_ipi_data+0x194/0x1a0 [kvm]
CPU: 11 UID: 107 PID: 2692 Comm: CPU 0/KVM Not tainted 6.17.0-rc1+ #102 PREEMPT(full)
Stack : 9000000005901568 0000000000000000 9000000003af371c 900000013c68c000
900000013c68f850 900000013c68f858 0000000000000000 900000013c68f998
900000013c68f990 900000013c68f990 900000013c68f6c0 fffffffffffdb058
fffffffffffdb0e0 900000013c68f858 911e1d4d39cf0ec2 9000000105657a00
0000000000000001 fffffffffffffffe 0000000000000578 282049464555206e
6f73676e6f6f4c20 0000000000000001 00000000086b4000 0000000000000000
0000000000000000 0000000000000000 9000000005709968 90000000058f9000
900000013c68fa68 900000013c68fab4 90000000029279f0 900000010153f940
900000010001f360 0000000000000000 9000000003af3734 000000004390000c
00000000000000b0 0000000000000004 0000000000000000 0000000000071c1d
...
Call Trace:
[<9000000003af3734>] show_stack+0x5c/0x180
[<9000000003aed168>] dump_stack_lvl+0x6c/0x9c
[<9000000003ad0ab0>] vpanic+0x108/0x2c4
[<9000000003ad0ca8>] panic+0x3c/0x40
[<9000000004eb0a1c>] __stack_chk_fail+0x14/0x18
[<ffff8000023473f8>] send_ipi_data+0x190/0x1a0 [kvm]
[<ffff8000023313e4>] __kvm_io_bus_write+0xa4/0xe8 [kvm]
[<ffff80000233147c>] kvm_io_bus_write+0x54/0x90 [kvm]
[<ffff80000233f9f8>] kvm_emu_iocsr+0x180/0x310 [kvm]
[<ffff80000233fe08>] kvm_handle_gspr+0x280/0x478 [kvm]
[<ffff8000023443e8>] kvm_handle_exit+0xc0/0x130 [kvm]
In the Linux kernel, the following vulnerability has been resolved:
net, hsr: reject HSR frame if skb can't hold tag
Receiving HSR frame with insufficient space to hold HSR tag in the skb
can result in a crash (kernel BUG):
[ 45.390915] skbuff: skb_under_panic: text:ffffffff86f32cac len:26 put:14 head:ffff888042418000 data:ffff888042417ff4 tail:0xe end:0x180 dev:bridge_slave_1
[ 45.392559] ------------[ cut here ]------------
[ 45.392912] kernel BUG at net/core/skbuff.c:211!
[ 45.393276] Oops: invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN NOPTI
[ 45.393809] CPU: 1 UID: 0 PID: 2496 Comm: reproducer Not tainted 6.15.0 #12 PREEMPT(undef)
[ 45.394433] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 45.395273] RIP: 0010:skb_panic+0x15b/0x1d0
<snip registers, remove unreliable trace>
[ 45.402911] Call Trace:
[ 45.403105] <IRQ>
[ 45.404470] skb_push+0xcd/0xf0
[ 45.404726] br_dev_queue_push_xmit+0x7c/0x6c0
[ 45.406513] br_forward_finish+0x128/0x260
[ 45.408483] __br_forward+0x42d/0x590
[ 45.409464] maybe_deliver+0x2eb/0x420
[ 45.409763] br_flood+0x174/0x4a0
[ 45.410030] br_handle_frame_finish+0xc7c/0x1bc0
[ 45.411618] br_handle_frame+0xac3/0x1230
[ 45.413674] __netif_receive_skb_core.constprop.0+0x808/0x3df0
[ 45.422966] __netif_receive_skb_one_core+0xb4/0x1f0
[ 45.424478] __netif_receive_skb+0x22/0x170
[ 45.424806] process_backlog+0x242/0x6d0
[ 45.425116] __napi_poll+0xbb/0x630
[ 45.425394] net_rx_action+0x4d1/0xcc0
[ 45.427613] handle_softirqs+0x1a4/0x580
[ 45.427926] do_softirq+0x74/0x90
[ 45.428196] </IRQ>
This issue was found by syzkaller.
The panic happens in br_dev_queue_push_xmit() once it receives a
corrupted skb with ETH header already pushed in linear data. When it
attempts the skb_push() call, there's not enough headroom and
skb_push() panics.
The corrupted skb is put on the queue by HSR layer, which makes a
sequence of unintended transformations when it receives a specific
corrupted HSR frame (with incomplete TAG).
Fix it by dropping and consuming frames that are not long enough to
contain both ethernet and hsr headers.
Alternative fix would be to check for enough headroom before skb_push()
in br_dev_queue_push_xmit().
In the reproducer, this is injected via AF_PACKET, but I don't easily
see why it couldn't be sent over the wire from adjacent network.
Further Details:
In the reproducer, the following network interface chain is set up:
┌────────────────┐ ┌────────────────┐
│ veth0_to_hsr ├───┤ hsr_slave0 ┼───┐
└────────────────┘ └────────────────┘ │
│ ┌──────┐
├─┤ hsr0 ├───┐
│ └──────┘ │
┌────────────────┐ ┌────────────────┐ │ │┌────────┐
│ veth1_to_hsr ┼───┤ hsr_slave1 ├───┘ └┤ │
└────────────────┘ └────────────────┘ ┌┼ bridge │
││ │
│└────────┘
│
┌───────┐ │
│ ... ├──────┘
└───────┘
To trigger the events leading up to crash, reproducer sends a corrupted
HSR fr
---truncated---
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/ops-common: ignore migration request to invalid nodes
damon_migrate_pages() tries migration even if the target node is invalid.
If users mistakenly make such invalid requests via
DAMOS_MIGRATE_{HOT,COLD} action, the below kernel BUG can happen.
[ 7831.883495] BUG: unable to handle page fault for address: 0000000000001f48
[ 7831.884160] #PF: supervisor read access in kernel mode
[ 7831.884681] #PF: error_code(0x0000) - not-present page
[ 7831.885203] PGD 0 P4D 0
[ 7831.885468] Oops: Oops: 0000 [#1] SMP PTI
[ 7831.885852] CPU: 31 UID: 0 PID: 94202 Comm: kdamond.0 Not tainted 6.16.0-rc5-mm-new-damon+ #93 PREEMPT(voluntary)
[ 7831.886913] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-4.el9 04/01/2014
[ 7831.887777] RIP: 0010:__alloc_frozen_pages_noprof (include/linux/mmzone.h:1724 include/linux/mmzone.h:1750 mm/page_alloc.c:4936 mm/page_alloc.c:5137)
[...]
[ 7831.895953] Call Trace:
[ 7831.896195] <TASK>
[ 7831.896397] __folio_alloc_noprof (mm/page_alloc.c:5183 mm/page_alloc.c:5192)
[ 7831.896787] migrate_pages_batch (mm/migrate.c:1189 mm/migrate.c:1851)
[ 7831.897228] ? __pfx_alloc_migration_target (mm/migrate.c:2137)
[ 7831.897735] migrate_pages (mm/migrate.c:2078)
[ 7831.898141] ? __pfx_alloc_migration_target (mm/migrate.c:2137)
[ 7831.898664] damon_migrate_folio_list (mm/damon/ops-common.c:321 mm/damon/ops-common.c:354)
[ 7831.899140] damon_migrate_pages (mm/damon/ops-common.c:405)
[...]
Add a target node validity check in damon_migrate_pages(). The validity
check is stolen from that of do_pages_move(), which is being used for the
move_pages() system call.
In the Linux kernel, the following vulnerability has been resolved:
iommu/riscv: prevent NULL deref in iova_to_phys
The riscv_iommu_pte_fetch() function returns either NULL for
unmapped/never-mapped iova, or a valid leaf pte pointer that
requires no further validation.
riscv_iommu_iova_to_phys() failed to handle NULL returns.
Prevent null pointer dereference in
riscv_iommu_iova_to_phys(), and remove the pte validation.
In the Linux kernel, the following vulnerability has been resolved:
io_uring/futex: ensure io_futex_wait() cleans up properly on failure
The io_futex_data is allocated upfront and assigned to the io_kiocb
async_data field, but the request isn't marked with REQ_F_ASYNC_DATA
at that point. Those two should always go together, as the flag tells
io_uring whether the field is valid or not.
Additionally, on failure cleanup, the futex handler frees the data but
does not clear ->async_data. Clear the data and the flag in the error
path as well.
Thanks to Trend Micro Zero Day Initiative and particularly ReDress for
reporting this.
In the Linux kernel, the following vulnerability has been resolved:
NFS: Fix a race when updating an existing write
After nfs_lock_and_join_requests() tests for whether the request is
still attached to the mapping, nothing prevents a call to
nfs_inode_remove_request() from succeeding until we actually lock the
page group.
The reason is that whoever called nfs_inode_remove_request() doesn't
necessarily have a lock on the page group head.
So in order to avoid races, let's take the page group lock earlier in
nfs_lock_and_join_requests(), and hold it across the removal of the
request in nfs_inode_remove_request().
In the Linux kernel, the following vulnerability has been resolved:
ALSA: hda: tas2781: Fix wrong reference of tasdevice_priv
During the conversion to unify the calibration data management, the
reference to tasdevice_priv was wrongly set to h->hda_priv instead of
h->priv. This resulted in memory corruption and crashes eventually.
Unfortunately it's a void pointer, hence the compiler couldn't know
that it's wrong.
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Flush delayed SKBs while releasing RXE resources
When skb packets are sent out, these skb packets still depends on
the rxe resources, for example, QP, sk, when these packets are
destroyed.
If these rxe resources are released when the skb packets are destroyed,
the call traces will appear.
To avoid skb packets hang too long time in some network devices,
a timestamp is added when these skb packets are created. If these
skb packets hang too long time in network devices, these network
devices can free these skb packets to release rxe resources.
In the Linux kernel, the following vulnerability has been resolved:
s390/sclp: Fix SCCB present check
Tracing code called by the SCLP interrupt handler contains early exits
if the SCCB address associated with an interrupt is NULL. This check is
performed after physical to virtual address translation.
If the kernel identity mapping does not start at address zero, the
resulting virtual address is never zero, so that the NULL checks won't
work. Subsequently this may result in incorrect accesses to the first
page of the identity mapping.
Fix this by introducing a function that handles the NULL case before
address translation.
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Avoid a NULL pointer dereference
[WHY]
Although unlikely drm_atomic_get_new_connector_state() or
drm_atomic_get_old_connector_state() can return NULL.
[HOW]
Check returns before dereference.
(cherry picked from commit 1e5e8d672fec9f2ab352be121be971877bff2af9)
In the Linux kernel, the following vulnerability has been resolved:
smb: server: split ksmbd_rdma_stop_listening() out of ksmbd_rdma_destroy()
We can't call destroy_workqueue(smb_direct_wq); before stop_sessions()!
Otherwise already existing connections try to use smb_direct_wq as
a NULL pointer.
In the Linux kernel, the following vulnerability has been resolved:
iio: accel: sca3300: fix uninitialized iio scan data
Fix potential leak of uninitialized stack data to userspace by ensuring
that the `channels` array is zeroed before use.
In the Linux kernel, the following vulnerability has been resolved:
comedi: Fix use of uninitialized memory in do_insn_ioctl() and do_insnlist_ioctl()
syzbot reports a KMSAN kernel-infoleak in `do_insn_ioctl()`. A kernel
buffer is allocated to hold `insn->n` samples (each of which is an
`unsigned int`). For some instruction types, `insn->n` samples are
copied back to user-space, unless an error code is being returned. The
problem is that not all the instruction handlers that need to return
data to userspace fill in the whole `insn->n` samples, so that there is
an information leak. There is a similar syzbot report for
`do_insnlist_ioctl()`, although it does not have a reproducer for it at
the time of writing.
One culprit is `insn_rw_emulate_bits()` which is used as the handler for
`INSN_READ` or `INSN_WRITE` instructions for subdevices that do not have
a specific handler for that instruction, but do have an `INSN_BITS`
handler. For `INSN_READ` it only fills in at most 1 sample, so if
`insn->n` is greater than 1, the remaining `insn->n - 1` samples copied
to userspace will be uninitialized kernel data.
Another culprit is `vm80xx_ai_insn_read()` in the "vm80xx" driver. It
never returns an error, even if it fails to fill the buffer.
Fix it in `do_insn_ioctl()` and `do_insnlist_ioctl()` by making sure
that uninitialized parts of the allocated buffer are zeroed before
handling each instruction.
Thanks to Arnaud Lecomte for their fix to `do_insn_ioctl()`. That fix
replaced the call to `kmalloc_array()` with `kcalloc()`, but it is not
always necessary to clear the whole buffer.
In the Linux kernel, the following vulnerability has been resolved:
x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper
Since
923f3a2b48bd ("x86/resctrl: Query LLC monitoring properties once during boot")
resctrl_cpu_detect() has been moved from common CPU initialization code to
the vendor-specific BSP init helper, while Hygon didn't put that call in their
code.
This triggers a division by zero fault during early booting stage on our
machines with X86_FEATURE_CQM* supported, where get_rdt_mon_resources() tries
to calculate mon_l3_config with uninitialized boot_cpu_data.x86_cache_occ_scale.
Add the missing resctrl_cpu_detect() in the Hygon BSP init helper.
[ bp: Massage commit message. ]