UBUNTU-CVE-2025-68348

In the Linux kernel, the following vulnerability has been resolved: block: fix memory leak in blkdevissuezeropages Move the fatal signal check before bioalloc to prevent a memory leak when BLKDEVZEROKILLABLE is set and a fatal signal is pending. Previously, the bio was allocated before checking f...

CVE-2023-54039

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939tptxdatnew: fix out-of-bounds memory access In the j1939tptxdatnew function, an out-of-bounds memory access could occur during the memcpy operation if the size of skb-cb is larger than the size of struct...

CVE-2025-68348

In the Linux kernel, the following vulnerability has been resolved: block: fix memory leak in blkdevissuezeropages Move the fatal signal check before bioalloc to prevent a memory leak when BLKDEVZEROKILLABLE is set and a fatal signal is pending. Previously, the bio was allocated before checking f...

CVE-2023-53990

In the Linux kernel, the following vulnerability has been resolved: SMB3: Add missing locks to protect deferred close file list cifsdeldeferredclose function has a critical section which modifies the deferred close file list. We must acquire deferredlock before calling cifsdeldeferredclose functi...

CVE-2023-54039

The CVE-2023-54039 issue is in the Linux kernel’s CAN J1939 code, specifically j1939_tp_tx_dat_new(). The vulnerability arises when a memcpy uses skb->cb’s size, allowing an out-of-bounds read if skb->cb is larger than struct j1939_sk_buff_cb. The fix changes memcpy to use the size of struc...

CVE-2023-54021 ext4: set goal start correctly in ext4_mb_normalize_request

In the Linux kernel, the following vulnerability has been resolved: ext4: set goal start correctly in ext4mbnormalizerequest We need to set acgex to notify the goal start used in ext4mbfindbygoal. Set acgex instead of acfex in ext4mbnormalizerequest. Besides we should assure goal start is in rang...

CVE-2023-53990

Technical details for CVE-2023-53990 are not publicly available in the supplied documents; no vendor/product/version specifics, exploit info, or fixes are provided here. Monitor for updates.

CVE-2023-53990 SMB3: Add missing locks to protect deferred close file list

In the Linux kernel, the following vulnerability has been resolved: SMB3: Add missing locks to protect deferred close file list cifsdeldeferredclose function has a critical section which modifies the deferred close file list. We must acquire deferredlock before calling cifsdeldeferredclose functi...

CVE-2022-50702 vdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()

In the Linux kernel, the following vulnerability has been resolved: vdpasim: fix possible memory leak in vdpasimnetinit and vdpasimblkinit Inject fault while probing module, if deviceregister fails in vdpasimnetinit or vdpasimblkinit, but the refcount of kobject is not decreased to 0, the name...

CVE-2025-68372 nbd: defer config put in recv_work

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config put in recvwork There is one uaf issue in recvwork when running NBDCLEARSOCK and NBDCMDRECONFIGURE: nbdgenlconnect // confref=2 connect and recvwork A nbdopen // confref=3 recvwork A done // confref=2 NBDCLEARSO...

CVE-2025-68372

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config put in recvwork There is one uaf issue in recvwork when running NBDCLEARSOCK and NBDCMDRECONFIGURE: nbdgenlconnect // confref=2 connect and recvwork A nbdopen // confref=3 recvwork A done // confref=2 NBDCLEARSO...

CVE-2025-68372 nbd: defer config put in recv_work

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config put in recvwork There is one uaf issue in recvwork when running NBDCLEARSOCK and NBDCMDRECONFIGURE: nbdgenlconnect // confref=2 connect and recvwork A nbdopen // confref=3 recvwork A done // confref=2 NBDCLEARSO...

CVE-2025-68372 nbd: defer config put in recv_work

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config put in recvwork There is one uaf issue in recvwork when running NBDCLEARSOCK and NBDCMDRECONFIGURE: nbdgenlconnect // confref=2 connect and recvwork A nbdopen // confref=3 recvwork A done // confref=2 NBDCLEARSO...

CVE-2025-68366 nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

CVE-2025-68366

CVE-2025-68366 is a Linux kernel use-after-free in NBD config handling. The issue stemmed from a faulty refcount path in nbd_genl_connect where config_refs could be incremented after a pending config work, leading to use-after-free when NBD commands were processed. Connected docs show the fix def...

CVE-2025-68366

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

CVE-2025-68366 nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

CVE-2025-68348 block: fix memory leak in __blkdev_issue_zero_pages

In the Linux kernel, the following vulnerability has been resolved: block: fix memory leak in blkdevissuezeropages Move the fatal signal check before bioalloc to prevent a memory leak when BLKDEVZEROKILLABLE is set and a fatal signal is pending. Previously, the bio was allocated before checking f...

CVE-2025-68348

CVE-2025-68348 : In the Linux kernel block layer, a memory leak in __blkdev_issue_zero_pages was fixed by moving the fatal signal check before bio_alloc(). If a fatal signal was pending and BLKDEV_ZERO_KILLABLE was set, the code could allocate a bio and then exit the loop without freeing it. The ...

CVE-2025-68348 block: fix memory leak in __blkdev_issue_zero_pages

In the Linux kernel, the following vulnerability has been resolved: block: fix memory leak in blkdevissuezeropages Move the fatal signal check before bioalloc to prevent a memory leak when BLKDEVZEROKILLABLE is set and a fatal signal is pending. Previously, the bio was allocated before checking f...