kernel: writeback: avoid use-after-free after removing device

In the Linux kernel, the following vulnerability has been resolved: writeback: avoid use-after-free after removing device When a disk is removed, bdiunregister gets called to stop further writeback and wait for associated delayed work to complete. However, wbinodewritebackend may schedule bandwid...

kernel: drm/client: Fix memory leak in drm_client_modeset_probe

In the Linux kernel, the following vulnerability has been resolved: drm/client: Fix memory leak in drmclientmodesetprobe When a new mode is set to modeset-mode, the previous mode should be freed. This fixes the following kmemleak report: drmmodeduplicate+0x45/0x220 drm...

kernel: blk-cgroup: Reinit blkg_iostat_set after clearing in blkcg_reset_stats()

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Reinit blkgiostatset after clearing in blkcgresetstats When blkgalloc is called to allocate a blkcggq structure with the associated blkgiostatset's, there are 2 fields within blkgiostatset that requires proper...

kernel: ipv6: Fix an uninit variable access bug in __ip6_make_skb()

A flaw was identified in the Linux kernel’s IPv6 networking code in the function ip6makeskb. Under certain conditions—such as when using raw IPv6 sockets and processing ICMPv6 headers—the code may access an uninitialized variable because the expected header data is not guaranteed to reside in the...

kernel: net/mlx5: Devcom, fix error flow in mlx5_devcom_register_device

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Devcom, fix error flow in mlx5devcomregisterdevice In case devcom allocation is failed, mlx5 is always freeing the priv. However, this priv might have been allocated by a different thread, and freeing it might lead to...

kernel: drivers: base: dd: fix memory leak with using debugfs_lookup()

In the Linux kernel, the following vulnerability has been resolved: drivers: base: dd: fix memory leak with using debugfslookup When calling debugfslookup the result must have dput called on it, otherwise the memory will leak over time. To make things simpler, just call debugfslookupandremove...

kernel: device property: fix of node refcount leak in fwnode_graph_get_next_endpoint()

In the Linux kernel, the following vulnerability has been resolved: device property: fix of node refcount leak in fwnodegraphgetnextendpoint The 'parent' returned by fwnodegraphgetportparent with refcount incremented when 'prev' is not NULL, it needs be put when finish using it. Because the paren...

kernel: HID: betop: check shape of output reports

In the Linux kernel, the following vulnerability has been resolved: HID: betop: check shape of output reports betopffinit only checks the total sum of the report counts for each report field to be at least 4, but hidbetopffplay expects 4 report fields. A device advertising an output report with o...

kernel: drm/i915: Avoid potential vm use-after-free

A flaw was found in the drm/i915 component of the Linux kernel. This vulnerability arises from a race condition where a virtual machine VM object is exposed to userspace before a necessary reference is acquired. A local attacker could exploit this timing issue to trigger a use-after-free error,...

kernel: drm/vkms: Fix null-ptr-deref in vkms_release()

In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Fix null-ptr-deref in vkmsrelease A null-ptr-deref is triggered when it tries to destroy the workqueue in vkms-output.composerworkq in vkmsrelease. KASAN: null-ptr-deref in range 0x0000000000000118-0x000000000000011f CP...

kernel: NFS: Fix an Oops in nfs_d_automount()

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix an Oops in nfsdautomount When mounting from a NFSv4 referral, path-dentry can end up being a negative dentry, so derive the struct nfsserver from the dentry itself instead...

kernel: sctp: fix a potential overflow in sctp_ifwdtsn_skip

In the Linux kernel, the following vulnerability has been resolved: sctp: fix a potential overflow in sctpifwdtsnskip Currently, when traversing ifwdtsn skips with sctpwalkifwdtsn, it only checks the pos against the end of the chunk. However, the data left for the last pos may be sizeofstruct...

kernel: usb: dwc3: qcom: Fix memory leak in dwc3_qcom_interconnect_init

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: qcom: Fix memory leak in dwc3qcominterconnectinit oficcget alloc resources for path handle, we should release it when not need anymore. Like the release in dwc3qcominterconnectexit function. Add iccput in error handlin...

kernel: scsi: iscsi_tcp: Check that sock is valid before iscsi_set_param()

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsitcp: Check that sock is valid before iscsisetparam The validity of sock should be checked before assignment to avoid incorrect values. Commit 57569c37f0ad "scsi: iscsi: iscsitcp: Fix null-ptr-deref while calling...

kernel: tcp: fix skb_copy_ubufs() vs BIG TCP

In the Linux kernel, the following vulnerability has been resolved: tcp: fix skbcopyubufs vs BIG TCP David Ahern reported crashes in skbcopyubufs caused by TCP tx zerocopy using hugepages, and skb length bigger than 68 KB. skbcopyubufs assumed it could copy all payload using up to MAXSKBFRAGS...

kernel: cifs: Fix xid leak in cifs_ses_add_channel()

A transaction ID xid leak was found in the CIFS/SMB filesystem. When adding a new channel fails, the allocated xid is not freed, leading to gradual exhaustion of the xid pool...

kernel: cifs: Fix memory leak on the deferred close

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix memory leak on the deferred close xfstests on smb21 report kmemleak as below: unreferenced object 0xffff8881767d6200 size 64: comm "xfsio", pid 1284, jiffies 4294777434 age 20.789s hex dump first 32 bytes: 80 5a d0 11 8...

kernel: RDMA/rxe: Fix error unwind in rxe_create_qp()

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix error unwind in rxecreateqp In the function rxecreateqp, rxeqpfrominit is called to initialize qp, internally things like the spin locks are not setup until rxeqpinitreq. If an error occures before this point then t...

kernel: drm/amdkfd: fix potential kgd_mem UAFs

A flaw was found in the Linux kernel related to improper synchronization in a filesystem allocation path. Under certain conditions, concurrent operations may access and modify shared kernel data structures without adequate locking. This race condition can result in inconsistent internal state,...

kernel: mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data The MT7921 driver no longer uses eeprom.data, but the relevant code has not been removed completely since commit 16d98b548365 "mt76: mt7921: rely on...