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Vulnerabilidades de linux-raspi · Página 182

Vulnerabilidades publicadas para linux-raspi en los últimos 30 días: 790. Incluidas en el catálogo KEV: 0.

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Vulnerabilidades: 10281

  1. CVE-2026-64396

    Alta · CVSS 8.8EPSS 0,43%Sin corrección publicada

    ksmbd: fix UAF of struct file_lock in SMB2_LOCK deferred-lock cancellation

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix UAF of struct file_lock in SMB2_LOCK deferred-lock cancellation When a blocking byte-range lock request is deferred in the FILE_LOCK_DEFERRED path, ksmbd registers the asynchronous work into the connection's async_requests list via setup_async_work(). The cancel callback smb2_remove_blocked_lock() holds a reference to the flock. If the lock waiter is subsequently woken up but the work state is no longer KSMBD_WORK_ACTIVE (e.g., due to a concurrent cancellation), the cleanup path calls locks_free_lock(flock) without dequeuing the work from the async_requests list

    linux-raspiSistemas operativos
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  2. CVE-2026-64395

    Alta · CVSS 7.5EPSS 0,41%Sin corrección publicada

    ksmbd: require source read access for duplicate extents

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: require source read access for duplicate extents FSCTL_DUPLICATE_EXTENTS_TO_FILE passes the source file directly to vfs_clone_file_range() or vfs_copy_file_range() without checking the SMB access mask granted to the source handle. A handle opened with attribute access can consequently be used to copy file contents into an attacker-readable destination. Require FILE_READ_DATA on the source handle before either VFS operation, matching other ksmbd data-copy paths.

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  3. CVE-2026-64394

    Alta · CVSS 8.8EPSS 0,47%Sin corrección publicada

    ksmbd: add a WRITE_DAC/WRITE_OWNER check to SMB2 SET_INFO SECURITY

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: add a WRITE_DAC/WRITE_OWNER check to SMB2 SET_INFO SECURITY commit cc57232cae23 ("ksmbd: fix FSCTL permission bypass by adding a permission check for FSCTL_SET_SPARSE") added a fp->daccess gate to fsctl_set_sparse and noted that "similar handle-level checks exist in other functions but are missing here." The SMB2 SET_INFO SECURITY arm is one of the missing ones, and the most security-relevant: smb2_set_info_sec() calls set_info_sec() with no per-handle access check. set_info_sec() (fs/smb/server/smbacl.c) re-permissions the file: it rewrites owner/group/mode via not

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  4. CVE-2026-64393

    Crítica · CVSS 9.1EPSS 0,48%Sin corrección publicada

    ksmbd: run set info with opener credentials

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: run set info with opener credentials SMB2 SET_INFO handlers call path-based VFS helpers after checking the access mask granted to the SMB handle. Those helpers perform their owner, inode permission and LSM checks using the current ksmbd worker credentials. Run the complete SET_INFO dispatch with the credentials captured when the handle was opened. This also removes the separate security information credential setup and keeps all SET_INFO classes under one credential scope. Direct override_creds() is used because it can nest with the request credential overrides alr

    linux-raspiSistemas operativos
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  5. CVE-2026-64392

    Crítica · CVSS 9.1EPSS 0,51%Sin corrección publicada

    ksmbd: use opener credentials for delete-on-close

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for delete-on-close Delete-on-close can be completed by deferred or durable handle teardown, where no request work is available. Both the base-file unlink and the ADS xattr removal consequently run with the ksmbd worker credentials and can bypass filesystem permission checks. Run both operations with the credentials captured in struct file when the handle was opened. This preserves the authenticated user's fsuid, fsgid, supplementary groups and capability restrictions at final close.

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  6. CVE-2026-64391

    Crítica · CVSS 9.8EPSS 0,49%Sin corrección publicada

    ksmbd: use opener credentials for ADS I/O

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: use opener credentials for ADS I/O Alternate data streams are stored as xattrs. Unlike regular file I/O, their read and write paths therefore call VFS xattr helpers which recheck inode permissions and LSM policy using the current task credentials. Run ADS I/O with the credentials captured when the SMB handle was opened.

    linux-raspiSistemas operativos
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  7. CVE-2026-64390

    Alta · CVSS 8.8EPSS 0,47%Sin corrección publicada

    ksmbd: track the connection owning a byte-range lock

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: track the connection owning a byte-range lock SMB2_LOCK adds each granted byte-range lock to both the file lock list and the lock list of the connection which handled the request. The final close and durable handle paths, however, remove the connection list entry while holding fp->conn->llist_lock. With SMB3 multichannel, the connection handling the LOCK request can be different from the connection which opened the file. The entry can therefore be removed under a different spinlock from the one protecting the list it belongs to. A concurrent traversal can then ac

    linux-raspiSistemas operativos
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  8. CVE-2026-64389

    Alta · CVSS 8.2EPSS 0,48%Sin corrección publicada

    ksmbd: validate NTLMv2 response before updating session key

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate NTLMv2 response before updating session key ksmbd_auth_ntlmv2() derives the NTLMv2 session key into sess->sess_key before it verifies the NTLMv2 response. ksmbd_decode_ntlmssp_auth_blob() then continues into KEY_XCH even when ksmbd_auth_ntlmv2() failed. With SMB3 multichannel binding, the failed authentication operates on an existing session and the session setup error path does not expire binding sessions. A client can send a binding session setup with a bad NT proof and KEY_XCH and still modify sess->sess_key before STATUS_LOGON_FAILURE is returned. Rele

    linux-raspiSistemas operativos
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  9. CVE-2026-64388

    Alta · CVSS 7.8EPSS 0,13%Sin corrección publicada

    smb/client: fix chown/chgrp with SMB3 POSIX Extensions

    In the Linux kernel, the following vulnerability has been resolved: smb/client: fix chown/chgrp with SMB3 POSIX Extensions Ownership (chown) and group (chgrp) modifications were being ignored when mounting with SMB3 POSIX Extensions unless CIFS_MOUNT_CIFS_ACL or CIFS_MOUNT_MODE_FROM_SID were also explicitly set. Fix this by checking for posix_extensions in cifs_setattr_nounix() when updating UID and GID, ensuring that id_mode_to_cifs_acl() is called to map and set the ownership/group information on the server.

    linux-raspiSistemas operativos
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  10. CVE-2026-64387

    Crítica · CVSS 9.8EPSS 0,46%Sin corrección publicada

    smb: client: fix query directory replay double-free

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query directory replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_directory_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.

    linux-raspiSistemas operativos
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  11. CVE-2026-64386

    Crítica · CVSS 9.8EPSS 0,46%Sin corrección publicada

    smb: client: fix query_info() replay double-free

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query_info() replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_info_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.

    linux-raspiSistemas operativos
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  12. CVE-2026-64385

    Crítica · CVSS 9.8EPSS 0,46%Sin corrección publicada

    smb: client: fix double-free in SMB2_ioctl() replay

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_ioctl() replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_ioctl_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.

    linux-raspiSistemas operativos
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  13. CVE-2026-64384

    Crítica · CVSS 9.8EPSS 0,46%Sin corrección publicada

    smb: client: fix change notify replay double-free

    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. If SMB2_notify_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.

    linux-raspiSistemas operativos
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  14. CVE-2026-64383

    Crítica · CVSS 9.8EPSS 0,46%Sin corrección publicada

    smb: client: fix double-free in SMB2_flush() replay

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_flush() replay SMB2_flush() keeps its response buffer bookkeeping across replay attempts. If a replayable flush response is received and the retry then fails before cifs_send_recv() stores a replacement response, flush_exit will free the stale response pointer a second time. Reinitialize resp_buftype and rsp_iov at the top of the replay loop so cleanup only acts on response state produced by the current attempt. This fixes a double-free without changing replay handling for successful requests.

    linux-raspiSistemas operativos
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  15. CVE-2026-64382

    Alta · CVSS 8.8EPSS 0,35%Sin corrección publicada

    smb: client: fix double-free in SMB2_open() replay

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_open() replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_open_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.

    linux-raspiSistemas operativos
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  16. CVE-2026-64381

    Alta · CVSS 7.8EPSS 0,13%Sin corrección publicada

    smb: client: Fix next buffer leak in receive_encrypted_standard()

    In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix next buffer leak in receive_encrypted_standard() receive_encrypted_standard() allocates next_buffer before checking whether the number of compound PDUs already reached MAX_COMPOUND. If the limit check fails, the function returns immediately and the newly allocated next_buffer is not assigned to server->smallbuf/server->bigbuf, making it leaked. Move the MAX_COMPOUND check before allocating next_buffer.

    linux-raspiSistemas operativos
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  17. CVE-2026-64380

    Alta · CVSS 8.2EPSS 0,44%Sin corrección publicada

    smb: client: harden POSIX SID length parsing

    In the Linux kernel, the following vulnerability has been resolved: smb: client: harden POSIX SID length parsing posix_info_sid_size() reads sid[1] to obtain the subauthority count, but its existing boundary check still accepts buffers with only one remaining byte. Require two bytes before reading sid[1] so all client paths that reuse the helper reject truncated POSIX SIDs safely.

    linux-raspiSistemas operativos
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  18. CVE-2026-64379

    Alta · CVSS 7.1EPSS 0,31%Sin corrección publicada

    smb: client: mask server-provided mode to 07777 in modefromsid

    In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid When modefromsid is active, parse_dacl() applies the server-provided sub_auth[2] value from the NFS mode SID to cf_mode without masking to 07777. Apply the correct masking, same as in the read path.

    linux-raspiSistemas operativos
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  19. CVE-2026-64378

    Alta · CVSS 7.8EPSS 0,1%Sin corrección publicada

    writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs()

    In the Linux kernel, the following vulnerability has been resolved: writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() When a container exits, the following BUG_ON() is occasionally triggered: ================================================================== VFS: Busy inodes after unmount of sdb (ext4) ------------[ cut here ]------------ kernel BUG at fs/super.c:695! CPU: 3 PID: 6 Comm: containerd-shim Tainted: G OE K 6.6 #1 pstate: 63400009 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : generic_shutdown_super+0xf0/0x100 lr : generic_shutdown_super+0xf0/0x100 Call trace: generic_shutdown_super+0xf

    linux-raspiSistemas operativos
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  20. CVE-2026-64377

    Alta · CVSS 7.8EPSS 0,13%Sin corrección publicada

    cpufreq: qcom-cpufreq-hw: Fix possible double free

    In the Linux kernel, the following vulnerability has been resolved: cpufreq: qcom-cpufreq-hw: Fix possible double free qcom_cpufreq.data is allocated with devm_kzalloc() in probe() as an array of per-domain data. qcom_cpufreq_hw_cpu_init() stores a pointer to one element of this array in policy->driver_data. qcom_cpufreq_hw_cpu_exit() currently calls kfree() on policy->driver_data. This is not valid because the memory is devm-managed. For the first domain, this can free the devm-managed allocation while the devres entry is still active, leading to a possible double free when the platform device is later detached. For other domains, the poi

    linux-raspiSistemas operativos
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