| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
vdpasim: fix memory leak when freeing IOTLBs
After commit bda324fd037a ("vdpasim: control virtqueue support"),
vdpasim->iommu became an array of IOTLB, so we should clean the
mappings of each free one by one instead of just deleting the ranges
in the first IOTLB which may leak maps. |
| In the Linux kernel, the following vulnerability has been resolved:
usb: dwc3: qcom: Fix potential memory leak
Function dwc3_qcom_probe() allocates memory for resource structure
which is pointed by parent_res pointer. This memory is not
freed. This leads to memory leak. Use stack memory to prevent
memory leak.
Found by Linux Verification Center (linuxtesting.org) with SVACE. |
| In the Linux kernel, the following vulnerability has been resolved:
mlxsw: minimal: fix potential memory leak in mlxsw_m_linecards_init
The line cards array is not freed in the error path of
mlxsw_m_linecards_init(), which can lead to a memory leak. Fix by
freeing the array in the error path, thereby making the error path
identical to mlxsw_m_linecards_fini(). |
| In the Linux kernel, the following vulnerability has been resolved:
media: tw686x: Fix memory leak in tw686x_video_init
video_device_alloc() allocates memory for vdev,
when video_register_device() fails, it doesn't release the memory and
leads to memory leak, call video_device_release() to fix this. |
| In the Linux kernel, the following vulnerability has been resolved:
mt76: mt76x02u: fix possible memory leak in __mt76x02u_mcu_send_msg
Free the skb if mt76u_bulk_msg fails in __mt76x02u_mcu_send_msg routine. |
| In the Linux kernel, the following vulnerability has been resolved:
kunit: executor: Fix a memory leak on failure in kunit_filter_tests
It's possible that memory allocation for 'filtered' will fail, but for the
copy of the suite to succeed. In this case, the copy could be leaked.
Properly free 'copy' in the error case for the allocation of 'filtered'
failing.
Note that there may also have been a similar issue in
kunit_filter_subsuites, before it was removed in "kunit: flatten
kunit_suite*** to kunit_suite** in .kunit_test_suites".
This was reported by clang-analyzer via the kernel test robot, here:
https://lore.kernel.org/all/c8073b8e-7b9e-0830-4177-87c12f16349c@intel.com/
And by smatch via Dan Carpenter and the kernel test robot:
https://lore.kernel.org/all/202207101328.ASjx88yj-lkp@intel.com/ |
| In the Linux kernel, the following vulnerability has been resolved:
mmc: vub300: fix return value check of mmc_add_host()
mmc_add_host() may return error, if we ignore its return value, the memory
that allocated in mmc_alloc_host() will be leaked and it will lead a kernel
crash because of deleting not added device in the remove path.
So fix this by checking the return value and goto error path which will call
mmc_free_host(), besides, the timer added before mmc_add_host() needs be del.
And this patch fixes another missing call mmc_free_host() if usb_control_msg()
fails. |
| In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau/nvif: Fix potential memory leak in nvif_vmm_ctor().
When the nvif_vmm_type is invalid, we will return error directly
without freeing the args in nvif_vmm_ctor(), which leading a memory
leak. Fix it by setting the ret -EINVAL and goto done. |
| A potential memory leak issue was discovered in SDL2 in GLES_CreateTexture() function in SDL_render_gles.c. The vulnerability allows an attacker to cause a denial of service attack. The vulnerability affects SDL2 v2.0.4 and above. SDL-1.x are not affected. |
| In the Linux kernel, the following vulnerability has been resolved:
drivers: net: qlcnic: Fix potential memory leak in qlcnic_sriov_init()
If vp alloc failed in qlcnic_sriov_init(), all previously allocated vp
needs to be freed. |
| In the Linux kernel, the following vulnerability has been resolved:
firmware: arm_ffa: Fix memory leak by freeing notifier callback node
Commit e0573444edbf ("firmware: arm_ffa: Add interfaces to request
notification callbacks") adds support for notifier callbacks by allocating
and inserting a callback node into a hashtable during registration of
notifiers. However, during unregistration, the code only removes the
node from the hashtable without freeing the associated memory, resulting
in a memory leak.
Resolve the memory leak issue by ensuring the allocated notifier callback
node is properly freed after it is removed from the hashtable entry. |
| In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak
For some sev ioctl interfaces, input may be passed that is less than or
equal to SEV_FW_BLOB_MAX_SIZE, but larger than the data that PSP
firmware returns. In this case, kmalloc will allocate memory that is the
size of the input rather than the size of the data. Since PSP firmware
doesn't fully overwrite the buffer, the sev ioctl interfaces with the
issue may return uninitialized slab memory.
Currently, all of the ioctl interfaces in the ccp driver are safe, but
to prevent future problems, change all ioctl interfaces that allocate
memory with kmalloc to use kzalloc and memset the data buffer to zero
in sev_ioctl_do_platform_status. |
| In the Linux kernel, the following vulnerability has been resolved:
efivarfs: Fix memory leak of efivarfs_fs_info in fs_context error paths
When processing mount options, efivarfs allocates efivarfs_fs_info (sfi)
early in fs_context initialization. However, sfi is associated with the
superblock and typically freed when the superblock is destroyed. If the
fs_context is released (final put) before fill_super is called—such as
on error paths or during reconfiguration—the sfi structure would leak,
as ownership never transfers to the superblock.
Implement the .free callback in efivarfs_context_ops to ensure any
allocated sfi is properly freed if the fs_context is torn down before
fill_super, preventing this memory leak. |
| In the Linux kernel, the following vulnerability has been resolved:
media: imagination: fix a potential memory leak in e5010_probe()
Add video_device_release() to release the memory allocated by
video_device_alloc() if something goes wrong. |
| In the Linux kernel, the following vulnerability has been resolved:
RDMA/qedr: Fix potential memory leak in __qedr_alloc_mr()
__qedr_alloc_mr() allocates a memory chunk for "mr->info.pbl_table" with
init_mr_info(). When rdma_alloc_tid() and rdma_register_tid() fail, "mr"
is released while "mr->info.pbl_table" is not released, which will lead
to a memory leak.
We should release the "mr->info.pbl_table" with qedr_free_pbl() when error
occurs to fix the memory leak. |
| In the Linux kernel, the following vulnerability has been resolved:
memstick/ms_block: Fix a memory leak
'erased_blocks_bitmap' is never freed. As it is allocated at the same time
as 'used_blocks_bitmap', it is likely that it should be freed also at the
same time.
Add the corresponding bitmap_free() in msb_data_clear(). |
| In the Linux kernel, the following vulnerability has been resolved:
PCI: dwc: Deallocate EPC memory on dw_pcie_ep_init() errors
If dw_pcie_ep_init() fails to perform any action after the EPC memory is
initialized and the MSI memory region is allocated, the latter parts won't
be undone thus causing a memory leak. Add a cleanup-on-error path to fix
these leaks.
[bhelgaas: commit log] |
| In the Linux kernel, the following vulnerability has been resolved:
apparmor: Fix memleak in aa_simple_write_to_buffer()
When copy_from_user failed, the memory is freed by kvfree. however the
management struct and data blob are allocated independently, so only
kvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to
fix this issue. |
| In the Linux kernel, the following vulnerability has been resolved:
firmware: arm_scmi: Balance device refcount when destroying devices
Using device_find_child() to lookup the proper SCMI device to destroy
causes an unbalance in device refcount, since device_find_child() calls an
implicit get_device(): this, in turns, inhibits the call of the provided
release methods upon devices destruction.
As a consequence, one of the structures that is not freed properly upon
destruction is the internal struct device_private dev->p populated by the
drivers subsystem core.
KMemleak detects this situation since loading/unloding some SCMI driver
causes related devices to be created/destroyed without calling any
device_release method.
unreferenced object 0xffff00000f583800 (size 512):
comm "insmod", pid 227, jiffies 4294912190
hex dump (first 32 bytes):
00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N..........
ff ff ff ff ff ff ff ff 60 36 1d 8a 00 80 ff ff ........`6......
backtrace (crc 114e2eed):
kmemleak_alloc+0xbc/0xd8
__kmalloc_cache_noprof+0x2dc/0x398
device_add+0x954/0x12d0
device_register+0x28/0x40
__scmi_device_create.part.0+0x1bc/0x380
scmi_device_create+0x2d0/0x390
scmi_create_protocol_devices+0x74/0xf8
scmi_device_request_notifier+0x1f8/0x2a8
notifier_call_chain+0x110/0x3b0
blocking_notifier_call_chain+0x70/0xb0
scmi_driver_register+0x350/0x7f0
0xffff80000a3b3038
do_one_initcall+0x12c/0x730
do_init_module+0x1dc/0x640
load_module+0x4b20/0x5b70
init_module_from_file+0xec/0x158
$ ./scripts/faddr2line ./vmlinux device_add+0x954/0x12d0
device_add+0x954/0x12d0:
kmalloc_noprof at include/linux/slab.h:901
(inlined by) kzalloc_noprof at include/linux/slab.h:1037
(inlined by) device_private_init at drivers/base/core.c:3510
(inlined by) device_add at drivers/base/core.c:3561
Balance device refcount by issuing a put_device() on devices found via
device_find_child(). |
| In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix the inode leak in btrfs_iget()
[BUG]
There is a bug report that a syzbot reproducer can lead to the following
busy inode at unmount time:
BTRFS info (device loop1): last unmount of filesystem 1680000e-3c1e-4c46-84b6-56bd3909af50
VFS: Busy inodes after unmount of loop1 (btrfs)
------------[ cut here ]------------
kernel BUG at fs/super.c:650!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 48168 Comm: syz-executor Not tainted 6.15.0-rc2-00471-g119009db2674 #2 PREEMPT(full)
Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:generic_shutdown_super+0x2e9/0x390 fs/super.c:650
Call Trace:
<TASK>
kill_anon_super+0x3a/0x60 fs/super.c:1237
btrfs_kill_super+0x3b/0x50 fs/btrfs/super.c:2099
deactivate_locked_super+0xbe/0x1a0 fs/super.c:473
deactivate_super fs/super.c:506 [inline]
deactivate_super+0xe2/0x100 fs/super.c:502
cleanup_mnt+0x21f/0x440 fs/namespace.c:1435
task_work_run+0x14d/0x240 kernel/task_work.c:227
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x269/0x290 kernel/entry/common.c:218
do_syscall_64+0xd4/0x250 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
</TASK>
[CAUSE]
When btrfs_alloc_path() failed, btrfs_iget() directly returned without
releasing the inode already allocated by btrfs_iget_locked().
This results the above busy inode and trigger the kernel BUG.
[FIX]
Fix it by calling iget_failed() if btrfs_alloc_path() failed.
If we hit error inside btrfs_read_locked_inode(), it will properly call
iget_failed(), so nothing to worry about.
Although the iget_failed() cleanup inside btrfs_read_locked_inode() is a
break of the normal error handling scheme, let's fix the obvious bug
and backport first, then rework the error handling later. |
