Red Hat Security AdvisoryRHSA-2026:61887
kernel security, bug fix, and enhancement update
Released 2026-09-01 · Red Hat rating Important · View on Red Hat →
Fixes 34 records
Priority MEDIUM 50
In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: reject short AUTH_RECEIVE buffers nvmet_execute_auth_receive() trusts the AUTH_RECEIVE allocation length after checking only that it is nonz…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00803 · Published 2026-08-15 · Partial fix · 6.1.191, 6.6.160 +4
Priority MEDIUM 50
In the Linux kernel, the following vulnerability has been resolved: locking/rt: Fix the incorrect RCU protection in rt_spin_unlock() rt_spin_unlock() releases the RCU protection before unlocking the lock.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00728 · Published 2026-08-15 · Partial fix · 5.15.217, 6.1.184 +5 CWE-416
Priority MEDIUM 50
In the Linux kernel, the following vulnerability has been resolved: pNFS: Fix use-after-free in pnfs_update_layout() When hitting the NFS_LAYOUT_RETURN branch in pnfs_update_layout(), the code calls pnfs_prepare_to_retry…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00644 · Published 2026-07-19 · Partial fix · 5.10.260, 5.5 +7 CWE-416
Priority MEDIUM 50
In the Linux kernel, the following vulnerability has been resolved: nfsd: release layout stid on setlease failure nfs4_alloc_stid() publishes the new stid into cl->cl_stateids via idr_alloc_cyclic() under cl_lock before…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00663 · Published 2026-07-19 · Partial fix · 5.10.261, 5.15.212 +6 CWE-416
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix change notify replay double-free A response-bearing attempt can return a replayable error and free its response buffer.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00457 · Published 2026-07-25 · Fixed in 6.6.145, 6.12.96 +3 CWE-415
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked() Commit 96c4af418586 ("cifs: Fix locking usage for tcon fields") refactored…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00407 · Published 2026-07-19 · Fixed in 6.6.142, 6.12.92 +4 CWE-362
Priority MEDIUM 47
In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page nvmet_execute_disc_get_log_page() validates only the dword alignment of the host-s…
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00803 · Published 2026-07-25 · Partial fix · 6.1.191, 6.6.160 +4 CWE-125
Priority MEDIUM 41
In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rx_req_idx to prevent out-of-bounds array access In mana_hwc_rx_event_handler(), rx_req_idx is derived from sge->address in DMA-cohe…
CVSS 3.1CRITICAL 9.3· Local · No auth · No interaction · EPSS 0.00142 · Published 2026-07-19 · Partial fix · 5.15.209, 6.1.175 +5 CWE-125
Priority MEDIUM 40
In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv() Blamed commit did not take care of VLAN encapsulations as spotted by syzbot [1].
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00547 · Published 2026-01-25 · Partial fix · 5.10.249, 5.15.199 +6 CWE-457
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: crypto: qat - fix VF2PF work teardown race in adf_disable_sriov() The VF2PF interrupt handler queues PF-side response work that stores a raw pointer to…
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.00135 · Published 2026-07-25 · Partial fix · 5.10.261, 5.15.212 +6 CWE-416
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: nfsd: fix posix_acl leak on SETACL decode failure nfsaclsvc_decode_setaclargs() and nfs3svc_decode_setaclargs() each call nfs_stream_decode_acl() twice,…
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00529 · Published 2026-07-19 · Partial fix · 5.10.260, 5.15.211 +6 CWE-401
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: NFSv4/flexfiles: reject zero filehandle version count ff_layout_alloc_lseg() decodes the filehandle-version array count from the flexfiles layout body.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00529 · Published 2026-07-19 · Partial fix · 5.10.261, 5.15.212 +6 CWE-20
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr nfs4_decode_mp_ds_addr() decodes the r_netid and r_addr opaques of a netaddr4 from a GET…
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00517 · Published 2026-07-19 · Partial fix · 5.15.211, 6.1.177 +5 CWE-476
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix clone_alias() to use the original device's devid Currently clone_alias() assumes first argument (pdev) is always the original device poin…
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.0013 · Published 2026-06-24 · Partial fix · 5.5, 6.1.191 +5 CWE-681
Priority LOW 38
In the Linux kernel, the following vulnerability has been resolved: ALSA: virtio: Validate control metadata from the device virtio-snd control handling trusts the device-provided control type and value count returned by…
CVSS 3.1HIGH 8.4· Local · No auth · No interaction · EPSS 0.00193 · Published 2026-07-25 · Fixed in 6.12.96, 6.18.39 +2 CWE-125
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: crypto: qat - validate RSA CRT component lengths The generic RSA key parser (rsa_helper.c) bounds each CRT component (p, q, dp, dq, qinv) by the modulus…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00169 · Published 2026-07-25 · Partial fix · 5.10.261, 5.15.212 +6 CWE-787
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - bound the F3A keymap to the GPIO count rmi_f3a_initialize() takes the GPIO count from the device query register (f3a->gpio_count…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00169 · Published 2026-07-25 · Partial fix · 5.10.261, 5.15.212 +6 CWE-787
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count rmi_f30_map_gpios() allocates gpioled_key_map with min(gpioled_count, TRACKSTICK_RANG…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00169 · Published 2026-07-25 · Partial fix · 5.10.261, 5.15.212 +6 CWE-787
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix race between dump and ip_set_list resize The release path of ip_set_dump_do() and ip_set_dump_done() read inst->ip_set_list via ip…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00126 · Published 2026-07-20 · Partial fix · 4.20, 5.10.261 +7 CWE-362
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: update file PMD counter before folio_put() __split_huge_pmd_locked() updates the file/shmem RSS counter after dropping the PMD mapping's…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.0013 · Published 2026-06-25 · Partial fix · 5.10.259, 5.15.210 +6 CWE-416
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: zram: fix use-after-free in zram_bvec_write_partial() zram_read_page() picks the sync or async backing device read path based on whether the parent bio…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00107 · Published 2026-06-25 · Partial fix · 6.6.143, 6.12.94 +3 CWE-364
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: ip6_gre: Use cached t->net in ip6erspan_changelink().
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00128 · Published 2026-05-28 · Partial fix · 4.17, 5.10.258 +7 CWE-416
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: bonding: alb: fix UAF in rlb_arp_recv during bond up/down The ALB RX path may access rx_hashtbl concurrently with bond teardown.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00126 · Published 2026-05-27 · Partial fix · 5.10.252, 5.15.202 +6 CWE-416
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix shrinker_info teardown race with expansion expand_shrinker_info() iterates all visible memcgs under shrinker_mutex, including memcgs t…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00097 · Published 2026-07-25 · Fixed in 6.12.96, 6.18.39 +2 CWE-362
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: mm/list_lru: drain before clearing xarray entry on reparent memcg_reparent_list_lrus() clears the dying memcg's xarray entry with xas_store(&xas, NULL)…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00099 · Published 2026-06-25 · Fixed in 6.18.36, 7.0.13 +1
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: NFSD: fix nfs4_file access extra count in nfsd4_add_rdaccess_to_wrdeleg In nfsd4_add_rdaccess_to_wrdeleg, if fp->fi_fds[O_RDONLY] is already set by anot…
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00426 · Published 2026-06-24 · Fixed in 6.18.33, 7.0.10 +1
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix for duplicate device in netdev hooks When handling NETDEV_REGISTER notification, duplicate device registration must be avoided…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00119 · Published 2026-05-08 · Fixed in 6.18.19, 6.19.9 +1
Priority LOW 30
In the Linux kernel, the following vulnerability has been resolved: NFSv4: include MAY_WRITE in open permission mask for O_TRUNC POSIX requires write permission to truncate a file, so an open() that specifies O_TRUNC mus…
CVSS 3.1HIGH 7.1· Local · Low privileges · No interaction · EPSS 0.00147 · Published 2026-07-25 · Partial fix · 5.10.261, 5.15.212 +6 CWE-862
Priority LOW 30
In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_ti: fix heap overflow in get_manuf_info() get_manuf_info() reads le16_to_cpu(rom_desc->Size) bytes from the device I2C EEPROM into a buf…
CVSS 3.1MEDIUM 6.8· Physical · No auth · No interaction · EPSS 0.00271 · Published 2026-06-25 · Partial fix · 5.10.259, 5.15.210 +6 CWE-787
Priority LOW 30
In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() nfnl_cthelper_dump_table() has a 'goto restart' that jumps to a label inside t…
CVSS 3.1HIGH 7.1· Local · Low privileges · No interaction · EPSS 0.00132 · Published 2026-05-08 · Partial fix · 5.10.253, 5.15.203 +6 CWE-125
Priority LOW 24
In the Linux kernel, the following vulnerability has been resolved: seccomp: passthrough uretprobe systemcall without filtering When attaching uretprobes to processes running inside docker, the attached process is segfau…
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.0018 · Published 2025-03-06 · Partial fix · 6.12.14, 6.13.3 +1
Priority LOW 22
In the Linux kernel, the following vulnerability has been resolved: x86/bugs: Make Safe-RET robust against interrupt injection An attacker injecting interrupts while the Safe-RET mitigation executes on machines affected…
CVSS — · EPSS 0.00234 · Published 2026-08-06 · Partial fix · 5.10.264, 5.15.215 +7
Priority LOW 22
In the Linux kernel, the following vulnerability has been resolved: userfaultfd: prevent registration of special VMAs Vova Tokarev says: userfaultfd allows registration on shadow stack VMAs.
CVSS — · EPSS 0.00206 · Published 2026-08-10 · Fixed in 6.6.153, 6.12.105 +3
Priority LOW 22
In the Linux kernel, the following vulnerability has been resolved: mm/khugepaged: write all dirty file folios when collapsing [There is no upstream commit, as this code was removed by upstream commit 044925f9b565 ("mm:…
CVSS — · EPSS 0.0015 · Published 2026-08-10 · Partial fix · 7.1.4