In the Linux kernel, the following vulnerability has been resolved: ext4: dax: fix overflowing extents beyond inode size when partially writing The dax_iomap_rw() does two things in each iteration: map written blocks and copy user data to blocks. If the process is killed by user(See signal handling in dax_iomap_iter()), the copied data will be returned and added on inode size, which means that the length of written extents may exceed the inode size, then fsck will fail. An example is given as: dd if=/dev/urandom of=file bs=4M count=1 dax_iomap_rw iomap_iter // round 1 ext4_iomap_begin ext4_iomap_alloc // allocate 0~2M extents(written flag) dax_iomap_iter // copy 2M data iomap_iter // round 2 iomap_iter_advance iter->pos += iter->processed // iter->pos = 2M ext4_iomap_begin ext4_iomap_alloc // allocate 2~4M extents(written flag) dax_iomap_iter fatal_signal_pending done = iter->pos - iocb->ki_pos // done = 2M ext4_handle_inode_extension ext4_update_inode_size // inode size = 2M fsck reports: Inode 13, i_size is 2097152, should be 4194304. Fix? Fix the problem by truncating extents if the written length is smaller than expected.

The remote openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:3984-1 advisory.

    The SUSE Linux Enterprise 15 SP6 Azure kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2024-36244: net/sched: taprio: extend minimum interval restriction to entire cycle too     (bsc#1226797).
    - CVE-2024-41031: mm/filemap: skip to create PMD-sized page cache if needed (bsc#1228454).
    - CVE-2024-41082: nvme-fabrics: use reserved tag for reg read/write command  (bsc#1228620).
    - CVE-2024-44958: sched/smt: Fix unbalance sched_smt_present dec/inc (bsc#1230179).
    - CVE-2024-45016: netem: fix return value if duplicate enqueue fails (bsc#1230429).
    - CVE-2024-45025: fix bitmap corruption on close_range() with CLOSE_RANGE_UNSHARE (bsc#1230456).
    - CVE-2024-46678: bonding: change ipsec_lock from spin lock to mutex (bsc#1230550).
    - CVE-2024-46721: pparmor: fix possible NULL pointer dereference (bsc#1230710)
    - CVE-2024-46754: bpf: Remove tst_run from lwt_seg6local_prog_ops (bsc#1230801).
    - CVE-2024-46766: ice: move netif_queue_set_napi to rtnl-protected sections (bsc#1230762).
    - CVE-2024-46770: ice: Add netif_device_attach/detach into PF reset flow (bsc#1230763).
    - CVE-2024-46775: drm/amd/display: Validate function returns (bsc#1230774).
    - CVE-2024-46777: udf: Avoid excessive partition lengths (bsc#1230773).
    - CVE-2024-46813: drm/amd/display: Check link_index before accessing dc->links (bsc#1231191).
    - CVE-2024-46816: drm/amd/display: Stop amdgpu_dm initialize when link nums greater than max_links     (bsc#1231197).
    - CVE-2024-46826: ELF: fix kernel.randomize_va_space double read (bsc#1231115).
    - CVE-2024-46828: uprobes: fix kernel info leak via '[uprobes]' vma (bsc#1231114).
    - CVE-2024-46831: net: microchip: vcap: Fix use-after-free error in kunit test (bsc#1231117).
    - CVE-2024-46834: ethtool: fail closed if we can't get max channel used in indirection tables     (bsc#1231096).
    - CVE-2024-46840: btrfs: clean up our handling of refs == 0 in snapshot delete (bsc#1231105).
    - CVE-2024-46841: btrfs: do not BUG_ON on ENOMEM from btrfs_lookup_extent_info() in walk_down_proc()     (bsc#1231094).
    - CVE-2024-46843: scsi: ufs: core: Remove SCSI host only if added (bsc#1231100).
    - CVE-2024-46854: net: dpaa: Pad packets to ETH_ZLEN (bsc#1231084).
    - CVE-2024-46855: netfilter: nft_socket: fix sk refcount leaks (bsc#1231085).
    - CVE-2024-46857: net/mlx5: Fix bridge mode operations when there are no VFs (bsc#1231087).
    - CVE-2024-46870: drm/amd/display: Disable DMCUB timeout for DCN35 (bsc#1231435).
    - CVE-2024-47658: crypto: stm32/cryp - call finalize with bh disabled (bsc#1231436).
    - CVE-2024-47660: fsnotify: clear PARENT_WATCHED flags lazily (bsc#1231439).
    - CVE-2024-47664: spi: hisi-kunpeng: Add verification for the max_frequency provided by the firmware     (bsc#1231442).
    - CVE-2024-47674: mm: avoid leaving partial pfn mappings around in error case (bsc#1231673).
    - CVE-2024-47684: tcp: check skb is non-NULL in tcp_rto_delta_us() (bsc#1231987).
    - CVE-2024-47685: netfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put() (bsc#1231998).
    - CVE-2024-47687: vdpa/mlx5: Fix invalid mr resource destroy (bsc#1232003).
    - CVE-2024-47692: nfsd: return -EINVAL when namelen is 0 (bsc#1231857).
    - CVE-2024-47704: drm/amd/display: Check link_res->hpo_dp_link_enc before using it (bsc#1231944).
    - CVE-2024-47705: block: fix potential invalid pointer dereference in blk_add_partition (bsc#1231872).
    - CVE-2024-47706: block, bfq: fix possible UAF for bfqq->bic with merge chain (bsc#1231942).
    - CVE-2024-47707: ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev() (bsc#1231935).
    - CVE-2024-47710: sock_map: Add a cond_resched() in sock_hash_free() (bsc#1232049).
    - CVE-2024-47727: x86/tdx: Fix 'in-kernel MMIO' check (bsc#1232116).
    - CVE-2024-47730: crypto: hisilicon/qm - inject error before stopping queue (bsc#1232075).
    - CVE-2024-47731: drivers/perf: Fix ali_drw_pmu driver interrupt status clearing (bsc#1232117).
    - CVE-2024-47739: padata: use integer wrap around to prevent deadlock on seq_nr overflow (bsc#1232124).
    - CVE-2024-47741: btrfs: fix race setting file private on concurrent lseek using same fd (bsc#1231869).
    - CVE-2024-47745: mm: split critical region in remap_file_pages() and invoke LSMs in between     (bsc#1232135).
    - CVE-2024-47747: net: seeq: Fix use after free vulnerability in ether3 Driver Due to Race Condition     (bsc#1232145).
    - CVE-2024-47752: media: mediatek: vcodec: Fix H264 stateless decoder smatch warning (bsc#1232130).
    - CVE-2024-47753: media: mediatek: vcodec: Fix VP8 stateless decoder smatch warning (bsc#1231868).
    - CVE-2024-47754: media: mediatek: vcodec: Fix H264 multi stateless decoder smatch warning (bsc#1232131).
    - CVE-2024-49852: scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del() (bsc#1232819).
    - CVE-2024-49864: rxrpc: Fix a race between socket set up and I/O thread creation (bsc#1232256).
    - CVE-2024-49867: btrfs: wait for fixup workers before stopping cleaner kthread during umount     (bsc#1232262).
    - CVE-2024-49881: ext4: update orig_path in ext4_find_extent() (bsc#1232201).
    - CVE-2024-49882: ext4: fix double brelse() the buffer of the extents path (bsc#1232200).
    - CVE-2024-49883: ext4: aovid use-after-free in ext4_ext_insert_extent() (bsc#1232199).
    - CVE-2024-49888: bpf: Fix a sdiv overflow issue (bsc#1232208).
    - CVE-2024-49890: drm/amd/pm: ensure the fw_info is not null before using it (bsc#1232217).
    - CVE-2024-49892: drm/amd/display: Initialize get_bytes_per_element's default to 1 (bsc#1232220).
    - CVE-2024-49894: drm/amd/display: Fix index out of bounds in degamma hardware format translation     (bsc#1232354).
    - CVE-2024-49895: drm/amd/display: Fix index out of bounds in DCN30 degamma hardware format translation     (bsc#1232352).
    - CVE-2024-49896: drm/amd/display: Check stream before comparing them (bsc#1232221).
    - CVE-2024-49897: drm/amd/display: Check phantom_stream before it is used (bsc#1232355).
    - CVE-2024-49898: drm/amd/display: Check null-initialized variables (bsc#1232222).
    - CVE-2024-49901: drm/msm/adreno: Assign msm_gpu->pdev earlier to avoid nullptrs (bsc#1232305).
    - CVE-2024-49906: drm/amd/display: Check null pointer before try to access it (bsc#1232332).
    - CVE-2024-49907: drm/amd/display: Check null pointers before using dc->clk_mgr (bsc#1232334).
    - CVE-2024-49908: drm/amd/display: Add null check for 'afb' in amdgpu_dm_update_cursor (bsc#1232335).
    - CVE-2024-49909: drm/amd/display: Add NULL check for function pointer in dcn32_set_output_transfer_func     (bsc#1232337).
    - CVE-2024-49913: drm/amd/display: Add null check for top_pipe_to_program in commit_planes_for_stream     (bsc#1232307).
    - CVE-2024-49914: drm/amd/display: Add null check for pipe_ctx->plane_state in (bsc#1232369).
    - CVE-2024-49917: drm/amd/display: Add NULL check for clk_mgr and clk_mgr->funcs in dcn30_init_hw     (bsc#1231965).
    - CVE-2024-49918: drm/amd/display: Add null check for head_pipe in     dcn32_acquire_idle_pipe_for_head_pipe_in_layer (bsc#1231967).
    - CVE-2024-49919: drm/amd/display: Add null check for head_pipe in dcn201_acquire_free_pipe_for_layer     (bsc#1231968).
    - CVE-2024-49920: drm/amd/display: Check null pointers before multiple uses (bsc#1232313).
    - CVE-2024-49936: net/xen-netback: prevent UAF in xenvif_flush_hash() (bsc#1232424).
    - CVE-2024-49946: ppp: do not assume bh is held in ppp_channel_bridge_input() (bsc#1232164).
    - CVE-2024-49949: net: avoid potential underflow in qdisc_pkt_len_init() with UFO (bsc#1232160).
    - CVE-2024-49950: Bluetooth: L2CAP: Fix uaf in l2cap_connect (bsc#1232159).
    - CVE-2024-49953: net/mlx5e: Fix crash caused by calling __xfrm_state_delete() twice (bsc#1232156).
    - CVE-2024-49954: static_call: Replace pointless WARN_ON() in static_call_module_notify() (bsc#1232155).
    - CVE-2024-49958: ocfs2: reserve space for inline xattr before attaching reflink tree (bsc#1232151).
    - CVE-2024-49959: jbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error     (bsc#1232149).
    - CVE-2024-49960: ext4: fix timer use-after-free on failed mount (bsc#1232395).
    - CVE-2024-49967: ext4: no need to continue when the number of entries is 1 (bsc#1232140).
    - CVE-2024-49969: drm/amd/display: Fix index out of bounds in DCN30 color transformation (bsc#1232519).
    - CVE-2024-49972: drm/amd/display: Deallocate DML memory if allocation fails (bsc#1232315).
    - CVE-2024-49973: r8169: add tally counter fields added with RTL8125 (bsc#1232105).
    - CVE-2024-49974: NFSD: Force all NFSv4.2 COPY requests to be synchronous (bsc#1232383).
    - CVE-2024-49986: platform/x86: x86-android-tablets: Fix use after free on platform_device_register()     errors (bsc#1232093).
    - CVE-2024-49991: drm/amdkfd: amdkfd_free_gtt_mem clear the correct pointer (bsc#1232282).
    - CVE-2024-49993: iommu/vt-d: Fix potential lockup if qi_submit_sync called with 0 count (bsc#1232316).
    - CVE-2024-49995: tipc: guard against string buffer overrun (bsc#1232432).
    - CVE-2024-49996: cifs: Fix buffer overflow when parsing NFS reparse points (bsc#1232089).
    - CVE-2024-50000: net/mlx5e: Fix NULL deref in mlx5e_tir_builder_alloc() (bsc#1232085).
    - CVE-2024-50001: net/mlx5: Fix error path in multi-packet WQE transmit (bsc#1232084).
    - CVE-2024-50002: static_call: Handle module init failure correctly in static_call_del_module()     (bsc#1232083).
    - CVE-2024-50015: ext4: dax: fix overflowing extents beyond inode size when partially writing     (bsc#1232079).
    - CVE-2024-50020: ice: Fix improper handling of refcount in ice_sriov_set_msix_vec_count() (bsc#1231989).
    - CVE-2024-50021: ice: Fix improper handling of refcount in ice_dpll_init_rclk_pins() (bsc#1231957).
    - CVE-2024-50022: device-dax: correct pgoff align in dax_set_mapping() (bsc#1231956).
    - CVE-2024-50024: net: Fix an unsafe loop on the list (bsc#1231954).
    - CVE-2024-50027: thermal: core: Free tzp copy along with the thermal zone (bsc#1231951).
    - CVE-2024-50028: thermal: core: Reference count the zone in thermal_zone_get_by_id() (bsc#1231950).
    - CVE-2024-50033: slip: make slhc_remember() more robust against malicious packets (bsc#1231914).
    - CVE-2024-50035: ppp: fix ppp_async_encode() illegal access (bsc#1232392).
    - CVE-2024-50040: igb: Do not bring the device up after non-fatal error (bsc#1231908).
    - CVE-2024-50041: i40e: Fix macvlan leak by synchronizing access to mac_filter_hash (bsc#1231907).
    - CVE-2024-50042: ice: Fix increasing MSI-X on VF (bsc#1231906).
    - CVE-2024-50045: netfilter: br_netfilter: fix panic with metadata_dst skb (bsc#1231903).
    - CVE-2024-50046: kabi fix for NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()     (bsc#1231902).
    - CVE-2024-50047: smb: client: fix UAF in async decryption (bsc#1232418).
    - CVE-2024-50059: ntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to     race condition (bsc#1232345).
    - CVE-2024-50060: io_uring: check if we need to reschedule during overflow flush (bsc#1232417).
    - CVE-2024-50063: kABI: bpf: struct bpf_map kABI workaround (bsc#1232435).
    - CVE-2024-50064: zram: do not free statically defined names (bsc#1231901).
    - CVE-2024-50080: ublk: do not allow user copy for unprivileged device (bsc#1232502).
    - CVE-2024-50081: blk-mq: setup queue ->tag_set before initializing hctx (bsc#1232501).


Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

CVE-2024-50015

medium

Tenable Plugins

critical