In the Linux kernel, the following vulnerability has been resolved: net: batman-adv: fix error handling Syzbot reported ODEBUG warning in batadv_nc_mesh_free(). The problem was in wrong error handling in batadv_mesh_init(). Before this patch batadv_mesh_init() was calling batadv_mesh_free() in case of any batadv_*_init() calls failure. This approach may work well, when there is some kind of indicator, which can tell which parts of batadv are initialized; but there isn't any. All written above lead to cleaning up uninitialized fields. Even if we hide ODEBUG warning by initializing bat_priv->nc.work, syzbot was able to hit GPF in batadv_nc_purge_paths(), because hash pointer in still NULL. [1] To fix these bugs we can unwind batadv_*_init() calls one by one. It is good approach for 2 reasons: 1) It fixes bugs on error handling path 2) It improves the performance, since we won't call unneeded batadv_*_free() functions. So, this patch makes all batadv_*_init() clean up all allocated memory before returning with an error to no call correspoing batadv_*_free() and open-codes batadv_mesh_free() with proper order to avoid touching uninitialized fields.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2189-1 advisory.

    The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2024-35905: Fixed int overflow for stack access size (bsc#1224488).
    - CVE-2024-26828: Fix underflow in parse_server_interfaces() (bsc#1223084).
    - CVE-2024-35863: Fix potential UAF in is_valid_oplock_break() (bsc#1224763).
    - CVE-2024-35867: Fix potential UAF in cifs_stats_proc_show() (bsc#1224664).
    - CVE-2024-35868: Fix potential UAF in cifs_stats_proc_write() (bsc#1224678).
    - CVE-2024-26928: Fix potential UAF in cifs_debug_files_proc_show() (bsc#1223532).
    - CVE-2024-36926: Fixed LPAR panics during boot up with a frozen PE (bsc#1222011).
    - CVE-2024-26925: Release mutex after nft_gc_seq_end from abort path (bsc#1223390).
    - CVE-2024-27413: Fix incorrect allocation size (bsc#1224438).
    - CVE-2024-35817: Set gtt bound flag in amdgpu_ttm_gart_bind (bsc#1224736).
    - CVE-2024-35904: Avoid dereference of garbage after mount failure (bsc#1224494).
    - CVE-2024-26929: Fixed double free of fcport (bsc#1223715).
    - CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
    - CVE-2024-26930: Fixed double free of the ha->vp_map pointer (bsc#1223626).
    - CVE-2024-26840: Fixed a memory leak in cachefiles_add_cache() (bsc#1222976).
    - CVE-2024-26862: Fixed packet annotate data-races around ignore_outgoing (bsc#1223111).
    - CVE-2024-0639: Fixed a denial-of-service vulnerability due to a deadlock found in sctp_auto_asconf_init     in net/sctp/socket.c (bsc#1218917).
    - CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
    - CVE-2024-26852: Fixed use-after-free in ip6_route_mpath_notify() (bsc#1223057).
    - CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).

    The following non-security bugs were fixed:

    - af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
    - af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
    - af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
    - filemap: remove use of wait bookmarks (bsc#1224085).
    - idpf: extend tx watchdog timeout (bsc#1224137).
    - ipvs: Fix checksumming on GSO of SCTP packets (bsc#1221958)
    - powerpc/kasan: Do not instrument non-maskable or raw interrupts (bsc#1223191).
    - powerpc/powernv: Add a null pointer check in opal_event_init() (bsc#1065729).
    - powerpc/powernv: Add a null pointer check to scom_debug_init_one() (bsc#1194869).
    - powerpc/pseries/iommu: IOMMU table is not initialized for kdump over SR-IOV (bsc#1220492 ltc#205270).
    - powerpc/pseries/vio: Do not return ENODEV if node or compatible missing (bsc#1220783).
    - powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt (bsc#1221645 ltc#205739 bsc#1223191).
    - powerpc: Refactor verification of MSR_RI (bsc#1223191).

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.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2183-1 advisory.

    The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
    - CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
    - CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
    - CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
    - CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
    - CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve     local privilege escalation (bsc#1215420).
    - CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve     local privilege escalation (bsc#1215420).
    - CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
    - CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
    - CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
    - CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
    - CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
    - CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
    - CVE-2024-26828: Fix underflow in parse_server_interfaces() (bsc#1223084).
    - CVE-2024-27413: Fix incorrect allocation size (bsc#1224438).
    - CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
    - CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
    - CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
    - CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
    - CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

    The following non-security bugs were fixed:

    - NFC: nxp: add NXP1002 (bsc#1185589).
    - PCI: rpaphp: Add MODULE_DESCRIPTION (bsc#1176869 ltc#188243).
    - af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
    - af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
    - af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
    - btrfs: do not start relocation until in progress drops are done (bsc#1222251).
    - md: Replace snprintf with scnprintf (git-fixes).
    - netfilter: nf_tables: GC transaction race with abort path (git-fixes).
    - netfilter: nf_tables: GC transaction race with netns dismantle (git-fixes).
    - netfilter: nf_tables: defer gc run if previous batch is still pending (git-fixes).
    - netfilter: nf_tables: fix GC transaction races with netns and netlink event exit path (git-fixes).
    - netfilter: nf_tables: fix kdoc warnings after gc rework (git-fixes).
    - netfilter: nf_tables: fix memleak when more than 255 elements expired (git-fixes).
    - netfilter: nf_tables: mark newset as dead on transaction abort (git-fixes).
    - netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout (git-fixes).
    - netfilter: nf_tables: nft_set_rbtree: fix spurious insertion failure (git-fixes).
    - netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path (git-fixes).
    - netfilter: nf_tables: skip dead set elements in netlink dump (git-fixes).
    - netfilter: nf_tables: use correct lock to protect gc_list (git-fixes).
    - netfilter: nft_set_hash: try later when GC hits EAGAIN on iteration (git-fixes).
    - netfilter: nft_set_rbtree: Add missing expired checks (git-fixes).
    - netfilter: nft_set_rbtree: Detect partial overlap with start endpoint match (git-fixes).
    - netfilter: nft_set_rbtree: Detect partial overlaps on insertion (git-fixes).
    - netfilter: nft_set_rbtree: Do not account for expired elements on insertion (git-fixes).
    - netfilter: nft_set_rbtree: Drop spurious condition for overlap detection on insertion (git-fixes).
    - netfilter: nft_set_rbtree: Handle outcomes of tree rotations in overlap detection (git-fixes).
    - netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start() (git-fixes).
    - netfilter: nft_set_rbtree: Switch to node list walk for overlap detection (git-fixes).
    - netfilter: nft_set_rbtree: bogus lookup/get on consecutive elements in named sets (git-fixes).
    - netfilter: nft_set_rbtree: fix null deref on element insertion (git-fixes).
    - netfilter: nft_set_rbtree: fix overlap expiration walk (git-fixes).
    - netfilter: nft_set_rbtree: overlap detection with element re-addition after deletion (git-fixes).
    - netfilter: nft_set_rbtree: skip elements in transaction from garbage collection (git-fixes).
    - netfilter: nft_set_rbtree: skip end interval element from gc (git-fixes).
    - netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction (git-fixes).
    - netfilter: nft_set_rbtree: use read spinlock to avoid datapath contention (git-fixes).
    - x86/pkeys: Revert a5eff7259790 ('x86/pkeys: Add PKRU value to init_fpstate') (bsc#1215356).

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.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2185-1 advisory.

    The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
    - CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
    - CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
    - CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
    - CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
    - CVE-2024-26828: Fix underflow in parse_server_interfaces() (bsc#1223084).
    - CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
    - CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
    - CVE-2024-27413: Fix incorrect allocation size (bsc#1224438).
    - CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
    - CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
    - CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
    - CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
    - CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
    - CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
    - CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
    - CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
    - CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve     local privilege escalation (bsc#1215420).
    - CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve     local privilege escalation (bsc#1215420).
    - CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
    - CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

    The following non-security bugs were fixed:

    - af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
    - af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
    - af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
    - btrfs: do not start relocation until in progress drops are done (bsc#1222251).
    - btrfs: do not start relocation until in progress drops are done (bsc#1222251).
    - cifs: add missing spinlock around tcon refcount (bsc#1213476).
    - cifs: avoid dup prefix path in dfs_get_automount_devname() (bsc#1213476).
    - cifs: avoid race conditions with parallel reconnects (bsc#1213476).
    - cifs: avoid re-lookups in dfs_cache_find() (bsc#1213476).
    - cifs: avoid use of global locks for high contention data (bsc#1213476).
    - cifs: check only tcon status on tcon related functions (bsc#1213476).
    - cifs: do all necessary checks for credits within or before locking (bsc#1213476).
    - cifs: do not block in dfs_cache_noreq_update_tgthint() (bsc#1213476).
    - cifs: do not refresh cached referrals from unactive mounts (bsc#1213476).
    - cifs: do not take exclusive lock for updating target hints (bsc#1213476).
    - cifs: fix confusing debug message (bsc#1213476).
    - cifs: fix missing unload_nls() in smb2_reconnect() (bsc#1213476).
    - cifs: fix potential deadlock in cache_refresh_path() (bsc#1213476).
    - cifs: fix refresh of cached referrals (bsc#1213476).
    - cifs: fix return of uninitialized rc in dfs_cache_update_tgthint() (bsc#1213476).
    - cifs: fix source pathname comparison of dfs supers (bsc#1213476).
    - cifs: fix status checks in cifs_tree_connect (bsc#1213476).
    - cifs: fix use-after-free bug in refresh_cache_worker() (bsc#1213476).
    - cifs: get rid of dns resolve worker (bsc#1213476).
    - cifs: get rid of mount options string parsing (bsc#1213476).
    - cifs: handle cache lookup errors different than -ENOENT (bsc#1213476).
    - cifs: ignore ipc reconnect failures during dfs failover (bsc#1213476).
    - cifs: match even the scope id for ipv6 addresses (bsc#1213476).
    - cifs: optimize reconnect of nested links (bsc#1213476).
    - cifs: prevent data race in smb2_reconnect() (bsc#1213476).
    - cifs: refresh root referrals (bsc#1213476).
    - cifs: remove duplicate code in __refresh_tcon() (bsc#1213476).
    - cifs: remove unused function (bsc#1213476).
    - cifs: remove unused smb3_fs_context::mount_options (bsc#1213476).
    - cifs: return DFS root session id in DebugData (bsc#1213476).
    - cifs: reuse cifs_match_ipaddr for comparison of dstaddr too (bsc#1213476).
    - cifs: set correct ipc status after initial tree connect (bsc#1213476).
    - cifs: set correct status of tcon ipc when reconnecting (bsc#1213476).
    - cifs: set correct tcon status after initial tree connect (bsc#1213476).
    - cifs: set DFS root session in cifs_get_smb_ses() (bsc#1213476).
    - cifs: set resolved ip in sockaddr (bsc#1213476).
    - cifs: share dfs connections and supers (bsc#1213476).
    - cifs: split out ses and tcon retrieval from mount_get_conns() (bsc#1213476).
    - cifs: use fs_context for automounts (bsc#1213476).
    - cifs: use origin fullpath for automounts (bsc#1213476).
    - cifs: use tcon allocation functions even for dummy tcon (bsc#1213476).
    - netfilter: nf_tables: defer gc run if previous batch is still pending (git-fixes).
    - netfilter: nf_tables: fix GC transaction races with netns and netlink event exit path (git-fixes).
    - netfilter: nf_tables: fix kdoc warnings after gc rework (git-fixes).
    - netfilter: nf_tables: fix memleak when more than 255 elements expired (git-fixes).
    - netfilter: nf_tables: GC transaction race with abort path (git-fixes).
    - netfilter: nf_tables: GC transaction race with netns dismantle (git-fixes).
    - netfilter: nf_tables: mark newset as dead on transaction abort (git-fixes).
    - netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout (git-fixes).
    - netfilter: nf_tables: nft_set_rbtree: fix spurious insertion failure (git-fixes).
    - netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path (git-fixes).
    - netfilter: nf_tables: skip dead set elements in netlink dump (git-fixes).
    - netfilter: nf_tables: use correct lock to protect gc_list (git-fixes).
    - netfilter: nft_set_hash: try later when GC hits EAGAIN on iteration (git-fixes).
    - netfilter: nft_set_rbtree: Add missing expired checks (git-fixes).
    - netfilter: nft_set_rbtree: bogus lookup/get on consecutive elements in named sets (git-fixes).
    - netfilter: nft_set_rbtree: Detect partial overlap with start endpoint match (git-fixes).
    - netfilter: nft_set_rbtree: Detect partial overlaps on insertion (git-fixes).
    - netfilter: nft_set_rbtree: Do not account for expired elements on insertion (git-fixes).
    - netfilter: nft_set_rbtree: Drop spurious condition for overlap detection on insertion (git-fixes).
    - netfilter: nft_set_rbtree: fix null deref on element insertion (git-fixes).
    - netfilter: nft_set_rbtree: fix overlap expiration walk (git-fixes).
    - netfilter: nft_set_rbtree: Handle outcomes of tree rotations in overlap detection (git-fixes).
    - netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start() (git-fixes).
    - netfilter: nft_set_rbtree: overlap detection with element re-addition after deletion (git-fixes).
    - netfilter: nft_set_rbtree: skip elements in transaction from garbage collection (git-fixes).
    - netfilter: nft_set_rbtree: skip end interval element from gc (git-fixes).
    - netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction (git-fixes).
    - netfilter: nft_set_rbtree: Switch to node list walk for overlap detection (git-fixes).
    - netfilter: nft_set_rbtree: use read spinlock to avoid datapath contention (git-fixes).
    - NFC: nxp: add NXP1002 (bsc#1185589).
    - PCI: rpaphp: Add MODULE_DESCRIPTION (bsc#1176869 ltc#188243).
    - smb: client: fix dfs link mount against w2k8 (git-fixes).
    - smb: client: fix null auth (bsc#1213476).
    - smb: client: set correct id, uid and cruid for multiuser automounts (git-fixes).
    - x86/xen: Drop USERGS_SYSRET64 paravirt call (git-fixes).

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.

ID	Name	Product	Family	Severity
201035	SUSE SLES15 Security Update : kernel (SUSE-SU-2024:2189-1)	Nessus	SuSE Local Security Checks	critical
201009	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2024:2190-1)	Nessus	SuSE Local Security Checks	critical
200932	SUSE SLES15 Security Update : kernel (SUSE-SU-2024:2183-1)	Nessus	SuSE Local Security Checks	critical
200930	SUSE SLES15 Security Update : kernel (SUSE-SU-2024:2185-1)	Nessus	SuSE Local Security Checks	critical
200508	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2024:2019-1)	Nessus	SuSE Local Security Checks	critical
200462	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2024:2008-1)	Nessus	SuSE Local Security Checks	critical

Detections

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CVE-2021-47482

medium

Tenable Plugins

critical

critical

critical

critical

critical

critical