UBUNTU-CVE-2023-53678

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix system suspend without fbdev being initialized If fbdev is not initialized for some reason - in practice on platforms without display - suspending fbdev should be skipped during system suspend, fix this up. While at...

CVE-2023-53686 net/handshake: fix null-ptr-deref in handshake_nl_done_doit()

In the Linux kernel, the following vulnerability has been resolved: net/handshake: fix null-ptr-deref in handshakenldonedoit We should not call tracehandshakecmddoneerr if socket lookup has failed. Also we should call tracehandshakecmddoneerr before releasing the file, otherwise dereferencing...

EUVD-2025-32731

In the Linux kernel, the following vulnerability has been resolved: net/handshake: fix null-ptr-deref in handshakenldonedoit We should not call tracehandshakecmddoneerr if socket lookup has failed. Also we should call tracehandshakecmddoneerr before releasing the file, otherwise dereferencing...

CVE-2023-53686 net/handshake: fix null-ptr-deref in handshake_nl_done_doit()

In the Linux kernel, the following vulnerability has been resolved: net/handshake: fix null-ptr-deref in handshakenldonedoit We should not call tracehandshakecmddoneerr if socket lookup has failed. Also we should call tracehandshakecmddoneerr before releasing the file, otherwise dereferencing...

CVE-2023-53681 bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent

In the Linux kernel, the following vulnerability has been resolved: bcache: Fix bchbtreenodealloc to make the failure behavior consistent In some specific situations, the return value of bchbtreenodealloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a...

EUVD-2025-32740

In the Linux kernel, the following vulnerability has been resolved: wifi: mt7601u: fix an integer underflow Fix an integer underflow that leads to a null pointer dereference in 'mt7601urxskbfromseg'. The variable 'dmalen' in the URB packet could be manipulated, which could trigger an integer...

CVE-2023-53657 ice: Don't tx before switchdev is fully configured

In the Linux kernel, the following vulnerability has been resolved: ice: Don't tx before switchdev is fully configured There is possibility that iceeswitchportstartxmit might be called while some resources are still not allocated which might cause NULL pointer dereference. Fix this by checking if...

CVE-2023-53657 ice: Don't tx before switchdev is fully configured

In the Linux kernel, the following vulnerability has been resolved: ice: Don't tx before switchdev is fully configured There is possibility that iceeswitchportstartxmit might be called while some resources are still not allocated which might cause NULL pointer dereference. Fix this by checking if...

EUVD-2025-32775

In the Linux kernel, the following vulnerability has been resolved: ice: Don't tx before switchdev is fully configured There is possibility that iceeswitchportstartxmit might be called while some resources are still not allocated which might cause NULL pointer dereference. Fix this by checking if...

CVE-2022-50555

CVE-2022-50555 : Linux kernel Tipc topsrv accept crashes due to a null pointer dereference when srv->listener is null (set by tipc_topsrv_stop). Root cause: concurrent use of a potentially null listener inside tipc_topsrv_accept; protection via srv->idr_lock, and a missing check allowed der...

CVE-2022-50555 tipc: fix a null-ptr-deref in tipc_topsrv_accept

In the Linux kernel, the following vulnerability has been resolved: tipc: fix a null-ptr-deref in tipctopsrvaccept syzbot found a crash in tipctopsrvaccept: KASAN: null-ptr-deref in range 0x0000000000000008-0x000000000000000f Workqueue: tipcrcv tipctopsrvaccept RIP: 0010:kernelaccept+0x22d/0x350...

CVE-2022-50555

In the Linux kernel, the following vulnerability has been resolved: tipc: fix a null-ptr-deref in tipctopsrvaccept syzbot found a crash in tipctopsrvaccept: KASAN: null-ptr-deref in range 0x0000000000000008-0x000000000000000f Workqueue: tipcrcv tipctopsrvaccept RIP: 0010:kernelaccept+0x22d/0x350...

EUVD-2025-32843

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential null-deref in dmresume Why Fixing smatch error: dmresume error: we previously assumed 'aconnector-dclink' could be null How Check if dclink null at the beginning of the loop, so further checks can b...

CVE-2023-53627

CVE-2023-53627 affects the Linux kernel SCSI driver histi_sas. The root cause is a race on sas_dev.list traversal during slot freeing in dereg_device_v3_hw() and hisi_sas_release_tasks(), which can trigger a NULL pointer dereference and kernel panic. The mitigation is to grab the sas_dev lock whi...

CVE-2023-53625 drm/i915/gvt: fix vgpu debugfs clean in remove

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gvt: fix vgpu debugfs clean in remove Check carefully on root debugfs available when destroying vgpu, e.g in remove case drm minor's debugfs root might already be destroyed, which led to kernel oops like below. Console:...

EUVD-2025-32787

In the Linux kernel, the following vulnerability has been resolved: memcontrol: ensure memcg acquired by id is properly set up In the eviction recency check, we attempt to retrieve the memcg to which the folio belonged when it was evicted, by the memcg id stored in the shadow entry. However, ther...

CVE-2022-50533

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: mlme: fix null-ptr deref on failed assoc If association to an AP without a link 0 fails, then we crash in tracing because it assumes that either apmldaddr or link 0 BSS is valid, since we clear sdata-vif.validlink...

CVE-2022-50533 wifi: mac80211: mlme: fix null-ptr deref on failed assoc

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: mlme: fix null-ptr deref on failed assoc If association to an AP without a link 0 fails, then we crash in tracing because it assumes that either apmldaddr or link 0 BSS is valid, since we clear sdata-vif.validlink...

CVE-2022-50530 blk-mq: fix null pointer dereference in blk_mq_clear_rq_mapping()

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix null pointer dereference in blkmqclearrqmapping Our syzkaller report a null pointer dereference, root cause is following: blkmqallocmapandrqs set-tagshctxidx = blkmqallocmapandrqs blkmqallocmapandrqs blkmqallocrqs //...

CVE-2022-50530

Mode C: CVE-2022-50530 affects the Linux kernel blk-mq path. The vulnerability is a NULL pointer dereference in blk_mq_clear_rq_mapping(), triggered when set->tags[hctx_idx] is NULL during an allocation path that merged two steps into one. Root cause, per the report, is that tags may not be in...