| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Check dce_hwseq before dereferencing it
[WHAT]
hws was checked for null earlier in dce110_blank_stream, indicating hws
can be null, and should be checked whenever it is used.
(cherry picked from commit 79db43611ff61280b6de58ce1305e0b2ecf675ad) |
| In the Linux kernel, the following vulnerability has been resolved:
LoongArch: KVM: Check validity of "num_cpu" from user space
The maximum supported cpu number is EIOINTC_ROUTE_MAX_VCPUS about
irqchip EIOINTC, here add validation about cpu number to avoid array
pointer overflow. |
| In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix failure to rebuild free space tree using multiple transactions
If we are rebuilding a free space tree, while modifying the free space
tree we may need to allocate a new metadata block group.
If we end up using multiple transactions for the rebuild, when we call
btrfs_end_transaction() we enter btrfs_create_pending_block_groups()
which calls add_block_group_free_space() to add items to the free space
tree for the block group.
Then later during the free space tree rebuild, at
btrfs_rebuild_free_space_tree(), we may find such new block groups
and call populate_free_space_tree() for them, which fails with -EEXIST
because there are already items in the free space tree. Then we abort the
transaction with -EEXIST at btrfs_rebuild_free_space_tree().
Notice that we say "may find" the new block groups because a new block
group may be inserted in the block groups rbtree, which is being iterated
by the rebuild process, before or after the current node where the rebuild
process is currently at.
Syzbot recently reported such case which produces a trace like the
following:
------------[ cut here ]------------
BTRFS: Transaction aborted (error -17)
WARNING: CPU: 1 PID: 7626 at fs/btrfs/free-space-tree.c:1341 btrfs_rebuild_free_space_tree+0x470/0x54c fs/btrfs/free-space-tree.c:1341
Modules linked in:
CPU: 1 UID: 0 PID: 7626 Comm: syz.2.25 Not tainted 6.15.0-rc7-syzkaller-00085-gd7fa1af5b33e-dirty #0 PREEMPT
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : btrfs_rebuild_free_space_tree+0x470/0x54c fs/btrfs/free-space-tree.c:1341
lr : btrfs_rebuild_free_space_tree+0x470/0x54c fs/btrfs/free-space-tree.c:1341
sp : ffff80009c4f7740
x29: ffff80009c4f77b0 x28: ffff0000d4c3f400 x27: 0000000000000000
x26: dfff800000000000 x25: ffff70001389eee8 x24: 0000000000000003
x23: 1fffe000182b6e7b x22: 0000000000000000 x21: ffff0000c15b73d8
x20: 00000000ffffffef x19: ffff0000c15b7378 x18: 1fffe0003386f276
x17: ffff80008f31e000 x16: ffff80008adbe98c x15: 0000000000000001
x14: 1fffe0001b281550 x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001b281551 x10: 0000000000000003 x9 : 1c8922000a902c00
x8 : 1c8922000a902c00 x7 : ffff800080485878 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008047843c
x2 : 0000000000000001 x1 : ffff80008b3ebc40 x0 : 0000000000000001
Call trace:
btrfs_rebuild_free_space_tree+0x470/0x54c fs/btrfs/free-space-tree.c:1341 (P)
btrfs_start_pre_rw_mount+0xa78/0xe10 fs/btrfs/disk-io.c:3074
btrfs_remount_rw fs/btrfs/super.c:1319 [inline]
btrfs_reconfigure+0x828/0x2418 fs/btrfs/super.c:1543
reconfigure_super+0x1d4/0x6f0 fs/super.c:1083
do_remount fs/namespace.c:3365 [inline]
path_mount+0xb34/0xde0 fs/namespace.c:4200
do_mount fs/namespace.c:4221 [inline]
__do_sys_mount fs/namespace.c:4432 [inline]
__se_sys_mount fs/namespace.c:4409 [inline]
__arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4409
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767
el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 330
hardirqs last enabled at (329): [<ffff80008048590c>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1525 [inline]
hardirqs last enabled at (329): [<ffff80008048590c>] finish_lock_switch+0xb0/0x1c0 kernel/sched/core.c:5130
hardirqs last disabled at (330): [<ffff80008adb9e60>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511
softirqs last enabled at (10): [<ffff8000801fbf10>] local_bh_enable+0
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
RDMA/mlx5: Fix unsafe xarray access in implicit ODP handling
__xa_store() and __xa_erase() were used without holding the proper lock,
which led to a lockdep warning due to unsafe RCU usage. This patch
replaces them with xa_store() and xa_erase(), which perform the necessary
locking internally.
=============================
WARNING: suspicious RCPU usage
6.14.0-rc7_for_upstream_debug_2025_03_18_15_01 #1 Not tainted
-----------------------------
./include/linux/xarray.h:1211 suspicious rcu_dereference_protected() usage!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by kworker/u136:0/219:
at: process_one_work+0xbe4/0x15f0
process_one_work+0x75c/0x15f0
pagefault_mr+0x9a5/0x1390 [mlx5_ib]
stack backtrace:
CPU: 14 UID: 0 PID: 219 Comm: kworker/u136:0 Not tainted
6.14.0-rc7_for_upstream_debug_2025_03_18_15_01 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Workqueue: mlx5_ib_page_fault mlx5_ib_eqe_pf_action [mlx5_ib]
Call Trace:
dump_stack_lvl+0xa8/0xc0
lockdep_rcu_suspicious+0x1e6/0x260
xas_create+0xb8a/0xee0
xas_store+0x73/0x14c0
__xa_store+0x13c/0x220
? xa_store_range+0x390/0x390
? spin_bug+0x1d0/0x1d0
pagefault_mr+0xcb5/0x1390 [mlx5_ib]
? _raw_spin_unlock+0x1f/0x30
mlx5_ib_eqe_pf_action+0x3be/0x2620 [mlx5_ib]
? lockdep_hardirqs_on_prepare+0x400/0x400
? mlx5_ib_invalidate_range+0xcb0/0xcb0 [mlx5_ib]
process_one_work+0x7db/0x15f0
? pwq_dec_nr_in_flight+0xda0/0xda0
? assign_work+0x168/0x240
worker_thread+0x57d/0xcd0
? rescuer_thread+0xc40/0xc40
kthread+0x3b3/0x800
? kthread_is_per_cpu+0xb0/0xb0
? lock_downgrade+0x680/0x680
? do_raw_spin_lock+0x12d/0x270
? spin_bug+0x1d0/0x1d0
? finish_task_switch.isra.0+0x284/0x9e0
? lockdep_hardirqs_on_prepare+0x284/0x400
? kthread_is_per_cpu+0xb0/0xb0
ret_from_fork+0x2d/0x70
? kthread_is_per_cpu+0xb0/0xb0
ret_from_fork_asm+0x11/0x20 |
| In the Linux kernel, the following vulnerability has been resolved:
nvme-tcp: sanitize request list handling
Validate the request in nvme_tcp_handle_r2t() to ensure it's not part of
any list, otherwise a malicious R2T PDU might inject a loop in request
list processing. |
| In the Linux kernel, the following vulnerability has been resolved:
netfs: Fix copy-to-cache so that it performs collection with ceph+fscache
The netfs copy-to-cache that is used by Ceph with local caching sets up a
new request to write data just read to the cache. The request is started
and then left to look after itself whilst the app continues. The request
gets notified by the backing fs upon completion of the async DIO write, but
then tries to wake up the app because NETFS_RREQ_OFFLOAD_COLLECTION isn't
set - but the app isn't waiting there, and so the request just hangs.
Fix this by setting NETFS_RREQ_OFFLOAD_COLLECTION which causes the
notification from the backing filesystem to put the collection onto a work
queue instead. |
| In the Linux kernel, the following vulnerability has been resolved:
vfio: Split migration ops from main device ops
vfio core checks whether the driver sets some migration op (e.g.
set_state/get_state) and accordingly calls its op.
However, currently mlx5 driver sets the above ops without regards to its
migration caps.
This might lead to unexpected usage/Oops if user space may call to the
above ops even if the driver doesn't support migration. As for example,
the migration state_mutex is not initialized in that case.
The cleanest way to manage that seems to split the migration ops from
the main device ops, this will let the driver setting them separately
from the main ops when it's applicable.
As part of that, validate ops construction on registration and include a
check for VFIO_MIGRATION_STOP_COPY since the uAPI claims it must be set
in migration_flags.
HISI driver was changed as well to match this scheme.
This scheme may enable down the road to come with some extra group of
ops (e.g. DMA log) that can be set without regards to the other options
based on driver caps. |
| In the Linux kernel, the following vulnerability has been resolved:
ksmbd: call rcu_barrier() in ksmbd_server_exit()
racy issue is triggered the bug by racing between closing a connection
and rmmod. In ksmbd, rcu_barrier() is not called at module unload time,
so nothing prevents ksmbd from getting unloaded while it still has RCU
callbacks pending. It leads to trigger unintended execution of kernel
code locally and use to defeat protections such as Kernel Lockdown |
| In the Linux kernel, the following vulnerability has been resolved:
iio: adc: axp20x_adc: Add missing sentinel to AXP717 ADC channel maps
The AXP717 ADC channel maps is missing a sentinel entry at the end. This
causes a KASAN warning.
Add the missing sentinel entry. |
| In the Linux kernel, the following vulnerability has been resolved:
staging: fbtft: core: set smem_len before fb_deferred_io_init call
The fbtft_framebuffer_alloc() calls fb_deferred_io_init() before
initializing info->fix.smem_len. It is set to zero by the
framebuffer_alloc() function. It will trigger a WARN_ON() at the
start of fb_deferred_io_init() and the function will not do anything. |
| In the Linux kernel, the following vulnerability has been resolved:
net: phy: Don't register LEDs for genphy
If a PHY has no driver, the genphy driver is probed/removed directly in
phy_attach/detach. If the PHY's ofnode has an "leds" subnode, then the
LEDs will be (un)registered when probing/removing the genphy driver.
This could occur if the leds are for a non-generic driver that isn't
loaded for whatever reason. Synchronously removing the PHY device in
phy_detach leads to the following deadlock:
rtnl_lock()
ndo_close()
...
phy_detach()
phy_remove()
phy_leds_unregister()
led_classdev_unregister()
led_trigger_set()
netdev_trigger_deactivate()
unregister_netdevice_notifier()
rtnl_lock()
There is a corresponding deadlock on the open/register side of things
(and that one is reported by lockdep), but it requires a race while this
one is deterministic.
Generic PHYs do not support LEDs anyway, so don't bother registering
them. |
| In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: Fix duplicated reported IW_CM_EVENT_CONNECT_REPLY event
If siw_recv_mpa_rr returns -EAGAIN, it means that the MPA reply hasn't
been received completely, and should not report IW_CM_EVENT_CONNECT_REPLY
in this case. This may trigger a call trace in iw_cm. A simple way to
trigger this:
server: ib_send_lat
client: ib_send_lat -R <server_ip>
The call trace looks like this:
kernel BUG at drivers/infiniband/core/iwcm.c:894!
invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
<...>
Workqueue: iw_cm_wq cm_work_handler [iw_cm]
Call Trace:
<TASK>
cm_work_handler+0x1dd/0x370 [iw_cm]
process_one_work+0x1e2/0x3b0
worker_thread+0x49/0x2e0
? rescuer_thread+0x370/0x370
kthread+0xe5/0x110
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x1f/0x30
</TASK> |
| In the Linux kernel, the following vulnerability has been resolved:
ksmbd: validate command request size
In commit 2b9b8f3b68ed ("ksmbd: validate command payload size"), except
for SMB2_OPLOCK_BREAK_HE command, the request size of other commands
is not checked, it's not expected. Fix it by add check for request
size of other commands. |
| In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix wrong next length validation of ea buffer in smb2_set_ea()
There are multiple smb2_ea_info buffers in FILE_FULL_EA_INFORMATION request
from client. ksmbd find next smb2_ea_info using ->NextEntryOffset of
current smb2_ea_info. ksmbd need to validate buffer length Before
accessing the next ea. ksmbd should check buffer length using buf_len,
not next variable. next is the start offset of current ea that got from
previous ea. |
| In the Linux kernel, the following vulnerability has been resolved:
ksmbd: not allow guest user on multichannel
This patch return STATUS_NOT_SUPPORTED if binding session is guest. |
| In the Linux kernel, the following vulnerability has been resolved:
io_uring/rsrc: validate buffer count with offset for cloning
syzbot reports that it can trigger a WARN_ON() for kmalloc() attempt
that's too big:
WARNING: CPU: 0 PID: 6488 at mm/slub.c:5024 __kvmalloc_node_noprof+0x520/0x640 mm/slub.c:5024
Modules linked in:
CPU: 0 UID: 0 PID: 6488 Comm: syz-executor312 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __kvmalloc_node_noprof+0x520/0x640 mm/slub.c:5024
lr : __do_kmalloc_node mm/slub.c:-1 [inline]
lr : __kvmalloc_node_noprof+0x3b4/0x640 mm/slub.c:5012
sp : ffff80009cfd7a90
x29: ffff80009cfd7ac0 x28: ffff0000dd52a120 x27: 0000000000412dc0
x26: 0000000000000178 x25: ffff7000139faf70 x24: 0000000000000000
x23: ffff800082f4cea8 x22: 00000000ffffffff x21: 000000010cd004a8
x20: ffff0000d75816c0 x19: ffff0000dd52a000 x18: 00000000ffffffff
x17: ffff800092f39000 x16: ffff80008adbe9e4 x15: 0000000000000005
x14: 1ffff000139faf1c x13: 0000000000000000 x12: 0000000000000000
x11: ffff7000139faf21 x10: 0000000000000003 x9 : ffff80008f27b938
x8 : 0000000000000002 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 00000000ffffffff x4 : 0000000000400dc0 x3 : 0000000200000000
x2 : 000000010cd004a8 x1 : ffff80008b3ebc40 x0 : 0000000000000001
Call trace:
__kvmalloc_node_noprof+0x520/0x640 mm/slub.c:5024 (P)
kvmalloc_array_node_noprof include/linux/slab.h:1065 [inline]
io_rsrc_data_alloc io_uring/rsrc.c:206 [inline]
io_clone_buffers io_uring/rsrc.c:1178 [inline]
io_register_clone_buffers+0x484/0xa14 io_uring/rsrc.c:1287
__io_uring_register io_uring/register.c:815 [inline]
__do_sys_io_uring_register io_uring/register.c:926 [inline]
__se_sys_io_uring_register io_uring/register.c:903 [inline]
__arm64_sys_io_uring_register+0x42c/0xea8 io_uring/register.c:903
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767
el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
which is due to offset + buffer_count being too large. The registration
code checks only the total count of buffers, but given that the indexing
is an array, it should also check offset + count. That can't exceed
IORING_MAX_REG_BUFFERS either, as there's no way to reach buffers beyond
that limit.
There's no issue with registrering a table this large, outside of the
fact that it's pointless to register buffers that cannot be reached, and
that it can trigger this kmalloc() warning for attempting an allocation
that is too large. |
| In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX
Otherwise, it is possible to hit WARN_ON_ONCE in __kvmalloc_node_noprof()
when resizing hashtable because __GFP_NOWARN is unset.
Similar to:
b541ba7d1f5a ("netfilter: conntrack: clamp maximum hashtable size to INT_MAX") |
| In the Linux kernel, the following vulnerability has been resolved:
mm: fix uprobe pte be overwritten when expanding vma
Patch series "Fix uprobe pte be overwritten when expanding vma".
This patch (of 4):
We encountered a BUG alert triggered by Syzkaller as follows:
BUG: Bad rss-counter state mm:00000000b4a60fca type:MM_ANONPAGES val:1
And we can reproduce it with the following steps:
1. register uprobe on file at zero offset
2. mmap the file at zero offset:
addr1 = mmap(NULL, 2 * 4096, PROT_NONE, MAP_PRIVATE, fd, 0);
3. mremap part of vma1 to new vma2:
addr2 = mremap(addr1, 4096, 2 * 4096, MREMAP_MAYMOVE);
4. mremap back to orig addr1:
mremap(addr2, 4096, 4096, MREMAP_MAYMOVE | MREMAP_FIXED, addr1);
In step 3, the vma1 range [addr1, addr1 + 4096] will be remap to new vma2
with range [addr2, addr2 + 8192], and remap uprobe anon page from the vma1
to vma2, then unmap the vma1 range [addr1, addr1 + 4096].
In step 4, the vma2 range [addr2, addr2 + 4096] will be remap back to the
addr range [addr1, addr1 + 4096]. Since the addr range [addr1 + 4096,
addr1 + 8192] still maps the file, it will take vma_merge_new_range to
expand the range, and then do uprobe_mmap in vma_complete. Since the
merged vma pgoff is also zero offset, it will install uprobe anon page to
the merged vma. However, the upcomming move_page_tables step, which use
set_pte_at to remap the vma2 uprobe pte to the merged vma, will overwrite
the newly uprobe pte in the merged vma, and lead that pte to be orphan.
Since the uprobe pte will be remapped to the merged vma, we can remove the
unnecessary uprobe_mmap upon merged vma.
This problem was first found in linux-6.6.y and also exists in the
community syzkaller:
https://lore.kernel.org/all/000000000000ada39605a5e71711@google.com/T/ |
| A vulnerability was found in ChestnutCMS up to 15.1. It has been declared as critical. This vulnerability affects unknown code of the file /dev-api/groovy/exec of the component API Endpoint. The manipulation leads to deserialization. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. |
| In the Linux kernel, the following vulnerability has been resolved:
powerpc64/ftrace: fix clobbered r15 during livepatching
While r15 is clobbered always with PPC_FTRACE_OUT_OF_LINE, it is
not restored in livepatch sequence leading to not so obvious fails
like below:
BUG: Unable to handle kernel data access on write at 0xc0000000000f9078
Faulting instruction address: 0xc0000000018ff958
Oops: Kernel access of bad area, sig: 11 [#1]
...
NIP: c0000000018ff958 LR: c0000000018ff930 CTR: c0000000009c0790
REGS: c00000005f2e7790 TRAP: 0300 Tainted: G K (6.14.0+)
MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 2822880b XER: 20040000
CFAR: c0000000008addc0 DAR: c0000000000f9078 DSISR: 0a000000 IRQMASK: 1
GPR00: c0000000018f2584 c00000005f2e7a30 c00000000280a900 c000000017ffa488
GPR04: 0000000000000008 0000000000000000 c0000000018f24fc 000000000000000d
GPR08: fffffffffffe0000 000000000000000d 0000000000000000 0000000000008000
GPR12: c0000000009c0790 c000000017ffa480 c00000005f2e7c78 c0000000000f9070
GPR16: c00000005f2e7c90 0000000000000000 0000000000000000 0000000000000000
GPR20: 0000000000000000 c00000005f3efa80 c00000005f2e7c60 c00000005f2e7c88
GPR24: c00000005f2e7c60 0000000000000001 c0000000000f9078 0000000000000000
GPR28: 00007fff97960000 c000000017ffa480 0000000000000000 c0000000000f9078
...
Call Trace:
check_heap_object+0x34/0x390 (unreliable)
__mutex_unlock_slowpath.isra.0+0xe4/0x230
seq_read_iter+0x430/0xa90
proc_reg_read_iter+0xa4/0x200
vfs_read+0x41c/0x510
ksys_read+0xa4/0x190
system_call_exception+0x1d0/0x440
system_call_vectored_common+0x15c/0x2ec
Fix it by restoring r15 always. |
