| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
gpio: Fix resource leaks on errors in gpiochip_add_data_with_key()
Since commit aab5c6f20023 ("gpio: set device type for GPIO chips"),
`gdev->dev.release` is unset. As a result, the reference count to
`gdev->dev` isn't dropped on the error handling paths.
Drop the reference on errors.
Also reorder the instructions to make the error handling simpler.
Now gpiochip_add_data_with_key() roughly looks like:
>>> Some memory allocation. Go to ERR ZONE 1 on errors.
>>> device_initialize().
gpiodev_release() takes over the responsibility for freeing the
resources of `gdev->dev`. The subsequent error handling paths
shouldn't go through ERR ZONE 1 again which leads to double free.
>>> Some initialization mainly on `gdev`.
>>> The rest of initialization. Go to ERR ZONE 2 on errors.
>>> Chip registration success and exit.
>>> ERR ZONE 2. gpio_device_put() and exit.
>>> ERR ZONE 1. |
| In the Linux kernel, the following vulnerability has been resolved:
mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure
Patch series "mm/damon/sysfs: fix memory leak and NULL dereference
issues", v4.
DAMON_SYSFS can leak memory under allocation failure, and do NULL pointer
dereference when a privileged user make wrong sequences of control. Fix
those.
This patch (of 3):
When damon_sysfs_new_test_ctx() fails in damon_sysfs_commit_input(),
param_ctx is leaked because the early return skips the cleanup at the out
label. Destroy param_ctx before returning. |
| In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to avoid memory leak in f2fs_rename()
syzbot reported a f2fs bug as below:
BUG: memory leak
unreferenced object 0xffff888127f70830 (size 16):
comm "syz.0.23", pid 6144, jiffies 4294943712
hex dump (first 16 bytes):
3c af 57 72 5b e6 8f ad 6e 8e fd 33 42 39 03 ff <.Wr[...n..3B9..
backtrace (crc 925f8a80):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4520 [inline]
slab_alloc_node mm/slub.c:4844 [inline]
__do_kmalloc_node mm/slub.c:5237 [inline]
__kmalloc_noprof+0x3bd/0x560 mm/slub.c:5250
kmalloc_noprof include/linux/slab.h:954 [inline]
fscrypt_setup_filename+0x15e/0x3b0 fs/crypto/fname.c:364
f2fs_setup_filename+0x52/0xb0 fs/f2fs/dir.c:143
f2fs_rename+0x159/0xca0 fs/f2fs/namei.c:961
f2fs_rename2+0xd5/0xf20 fs/f2fs/namei.c:1308
vfs_rename+0x7ff/0x1250 fs/namei.c:6026
filename_renameat2+0x4f4/0x660 fs/namei.c:6144
__do_sys_renameat2 fs/namei.c:6173 [inline]
__se_sys_renameat2 fs/namei.c:6168 [inline]
__x64_sys_renameat2+0x59/0x80 fs/namei.c:6168
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The root cause is in commit 40b2d55e0452 ("f2fs: fix to create selinux
label during whiteout initialization"), we added a call to
f2fs_setup_filename() without a matching call to f2fs_free_filename(),
fix it. |
| A flaw was found in the quarkus-resteasy extension, which causes memory leaks when client requests with low timeouts are made. If a client request times out, a buffer is not released correctly, leading to increased memory usage and eventual application crash due to OutOfMemoryError. |
| An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5. A Denial of Service can occur via memory exhaustion caused by memory leaks from unauthenticated connections. |
| Memory leak in sharkd 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service |
| When a challenge ACK is to be sent tcp_respond() constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf.
If an attacker is either on path with an established TCP connection, or can themselves establish a TCP connection, to an affected FreeBSD machine, they can easily craft and send packets which meet the challenge ACK criteria and cause the FreeBSD host to leak an mbuf for each crafted packet in excess of the configured rate limit settings i.e. with default settings, crafted packets in excess of the first 5 sent within a 1s period will leak an mbuf.
Technically, off-path attackers can also exploit this problem by guessing the IP addresses, TCP port numbers and in some cases the sequence numbers of established connections and spoofing packets towards a FreeBSD machine, but this is harder to do effectively. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw88: fix device leak on probe failure
Driver core holds a reference to the USB interface and its parent USB
device while the interface is bound to a driver and there is no need to
take additional references unless the structures are needed after
disconnect.
This driver takes a reference to the USB device during probe but does
not to release it on all probe errors (e.g. when descriptor parsing
fails).
Drop the redundant device reference to fix the leak, reduce cargo
culting, make it easier to spot drivers where an extra reference is
needed, and reduce the risk of further memory leaks. |
| In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix mechToken leak when SPNEGO decode fails after token alloc
The kernel ASN.1 BER decoder calls action callbacks incrementally as it
walks the input. When ksmbd_decode_negTokenInit() reaches the mechToken
[2] OCTET STRING element, ksmbd_neg_token_alloc() allocates
conn->mechToken immediately via kmemdup_nul(). If a later element in
the same blob is malformed, then the decoder will return nonzero after
the allocation is already live. This could happen if mechListMIC [3]
overrunse the enclosing SEQUENCE.
decode_negotiation_token() then sets conn->use_spnego = false because
both the negTokenInit and negTokenTarg grammars failed. The cleanup at
the bottom of smb2_sess_setup() is gated on use_spnego:
if (conn->use_spnego && conn->mechToken) {
kfree(conn->mechToken);
conn->mechToken = NULL;
}
so the kfree is skipped, causing the mechToken to never be freed.
This codepath is reachable pre-authentication, so untrusted clients can
cause slow memory leaks on a server without even being properly
authenticated.
Fix this up by not checking check for use_spnego, as it's not required,
so the memory will always be properly freed. At the same time, always
free the memory in ksmbd_conn_free() incase some other failure path
forgot to free it. |
| In the Linux kernel, the following vulnerability has been resolved:
xfrm: iptfs: fix skb_put() panic on non-linear skb during reassembly
In iptfs_reassem_cont(), IP-TFS attempts to append data to the new inner
packet 'newskb' that is being reassembled. First a zero-copy approach is
tried if it succeeds then newskb becomes non-linear.
When a subsequent fragment in the same datagram does not meet the
fast-path conditions, a memory copy is performed. It calls skb_put() to
append the data and as newskb is non-linear it triggers
SKB_LINEAR_ASSERT check.
Oops: invalid opcode: 0000 [#1] SMP NOPTI
[...]
RIP: 0010:skb_put+0x3c/0x40
[...]
Call Trace:
<IRQ>
iptfs_reassem_cont+0x1ab/0x5e0 [xfrm_iptfs]
iptfs_input_ordered+0x2af/0x380 [xfrm_iptfs]
iptfs_input+0x122/0x3e0 [xfrm_iptfs]
xfrm_input+0x91e/0x1a50
xfrm4_esp_rcv+0x3a/0x110
ip_protocol_deliver_rcu+0x1d7/0x1f0
ip_local_deliver_finish+0xbe/0x1e0
__netif_receive_skb_core.constprop.0+0xb56/0x1120
__netif_receive_skb_list_core+0x133/0x2b0
netif_receive_skb_list_internal+0x1ff/0x3f0
napi_complete_done+0x81/0x220
virtnet_poll+0x9d6/0x116e [virtio_net]
__napi_poll.constprop.0+0x2b/0x270
net_rx_action+0x162/0x360
handle_softirqs+0xdc/0x510
__irq_exit_rcu+0xe7/0x110
irq_exit_rcu+0xe/0x20
common_interrupt+0x85/0xa0
</IRQ>
<TASK>
Fix this by checking if the skb is non-linear. If it is, linearize it by
calling skb_linearize(). As the initial allocation of newskb originally
reserved enough tailroom for the entire reassembled packet we do not
need to check if we have enough tailroom or extend it. |
| In the Linux kernel, the following vulnerability has been resolved:
HID: magicmouse: avoid memory leak in magicmouse_report_fixup()
The magicmouse_report_fixup() function was returning a
newly kmemdup()-allocated buffer, but never freeing it.
The caller of report_fixup() does not take ownership of the returned
pointer, but it *is* permitted to return a sub-portion of the input
rdesc, whose lifetime is managed by the caller. |
| In the Linux kernel, the following vulnerability has been resolved:
esp: fix skb leak with espintcp and async crypto
When the TX queue for espintcp is full, esp_output_tail_tcp will
return an error and not free the skb, because with synchronous crypto,
the common xfrm output code will drop the packet for us.
With async crypto (esp_output_done), we need to drop the skb when
esp_output_tail_tcp returns an error. |
| In the Linux kernel, the following vulnerability has been resolved:
HID: apple: avoid memory leak in apple_report_fixup()
The apple_report_fixup() function was returning a
newly kmemdup()-allocated buffer, but never freeing it.
The caller of report_fixup() does not take ownership of the returned
pointer, but it *is* permitted to return a sub-portion of the input
rdesc, whose lifetime is managed by the caller. |
| In the Linux kernel, the following vulnerability has been resolved:
HID: asus: avoid memory leak in asus_report_fixup()
The asus_report_fixup() function was returning a newly allocated
kmemdup()-allocated buffer, but never freeing it. Switch to
devm_kzalloc() to ensure the memory is managed and freed automatically
when the device is removed.
The caller of report_fixup() does not take ownership of the returned
pointer, but it is permitted to return a pointer whose lifetime is at
least that of the input buffer.
Also fix a harmless out-of-bounds read by copying only the original
descriptor size. |
| In the Linux kernel, the following vulnerability has been resolved:
cxl/region: Fix leakage in __construct_region()
Failing the first sysfs_update_group() needs to explicitly
kfree the resource as it is too early for cxl_region_iomem_release()
to do so. |
| In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix leak of rxgk context in rxgk_verify_response()
Fix rxgk_verify_response() to clean up the rxgk context it creates. |
| In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix use of wrong skb when comparing queued RESP challenge serial
In rxrpc_post_response(), the code should be comparing the challenge serial
number from the cached response before deciding to switch to a newer
response, but looks at the newer packet private data instead, rendering the
comparison always false.
Fix this by switching to look at the older packet.
Fix further[1] to substitute the new packet in place of the old one if
newer and also to release whichever we don't use. |
| In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix key parsing memleak
In rxrpc_preparse_xdr_yfs_rxgk(), the memory attached to token->rxgk can be
leaked in a few error paths after it's allocated.
Fix this by freeing it in the "reject_token:" case. |
| In the Linux kernel, the following vulnerability has been resolved:
net: lan966x: fix page pool leak in error paths
lan966x_fdma_rx_alloc() creates a page pool but does not destroy it if
the subsequent fdma_alloc_coherent() call fails, leaking the pool.
Similarly, lan966x_fdma_init() frees the coherent DMA memory when
lan966x_fdma_tx_alloc() fails but does not destroy the page pool that
was successfully created by lan966x_fdma_rx_alloc(), leaking it.
Add the missing page_pool_destroy() calls in both error paths. |
| In the Linux kernel, the following vulnerability has been resolved:
net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit()
When dma_map_single() fails in tse_start_xmit(), the function returns
NETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells the
stack the packet was consumed, the skb is never freed, leaking memory
on every DMA mapping failure.
Add dev_kfree_skb_any() before returning to properly free the skb. |
