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Sicherheitslücken in linux-azure · Seite 193

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-azure: 843. Davon im KEV-Katalog: 0.

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  1. CVE-2026-72370

    Nicht bewertetEPSS 0,21%Korrektur verfügbar

    iomap: release pages on atomic dio size mismatch

    In the Linux kernel, the following vulnerability has been resolved: iomap: release pages on atomic dio size mismatch If bio_iov_iter_get_pages() or the bounce helper succeeds but builds a short bio, the REQ_ATOMIC size check rejects it before submission. The old error path only dropped the bio reference, leaving any pages already attached to the bio unreleased. Release or unbounce the pages before falling through to out_put_bio on this error path. This bug was reported by sashiko: https://sashiko.dev/#/patchset/20260608073134.95964-1-changfengnan%40bytedance.com

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  2. CVE-2026-72369

    Hoch · CVSS 7.8EPSS 0,18%Korrektur verfügbar

    minix: avoid overflow in bitmap block count calculation

    In the Linux kernel, the following vulnerability has been resolved: minix: avoid overflow in bitmap block count calculation minix_check_superblock() uses minix_blocks_needed() to verify that the on-disk imap and zmap block counts are large enough for the advertised inode and zone counts. The helper currently performs DIV_ROUND_UP() in unsigned int arithmetic. A Minix v3 image can set s_ninodes or s_zones near UINT_MAX so the addition inside DIV_ROUND_UP() wraps to zero. That makes a zero imap/zmap block count look valid, after which minix_fill_super() can dereference s_imap[0] or s_zmap[0] even though no bitmap buffers were allocated. Imp

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  3. CVE-2026-72368

    Hoch · CVSS 7.8EPSS 0,17%Korrektur verfügbar

    cachefiles: Fix double unlock in nomem_d_alloc error path

    In the Linux kernel, the following vulnerability has been resolved: cachefiles: Fix double unlock in nomem_d_alloc error path When start_creating() fails and returns -ENOMEM, it has already released the parent directory lock in __start_dirop(): static struct dentry *__start_dirop(...) { ... inode_lock_nested(dir, I_MUTEX_PARENT); dentry = lookup_one_qstr_excl(name, parent, lookup_flags); if (IS_ERR(dentry)) inode_unlock(dir); <-- Lock released on error return dentry; } However, the nomem_d_alloc error path in cachefiles_get_directory() unconditionally calls inode_unlock(d_in

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  4. CVE-2026-72367

    Hoch · CVSS 8.8EPSS 0,6%Korrektur verfügbar

    iomap: guard io_size EOF trim against concurrent truncate underflow

    In the Linux kernel, the following vulnerability has been resolved: iomap: guard io_size EOF trim against concurrent truncate underflow iomap: fix zero padding data issue in concurrent append writes changed ioend accounting so that io_size tracks only valid data within EOF. This trims io_size when a writeback range extends past end_pos: ioend->io_size += map_len; if (ioend->io_offset + ioend->io_size > end_pos) ioend->io_size = end_pos - ioend->io_offset; However, if end_pos ends up below ioend->io_offset, the subtraction becomes negative and is stored in size_t io_size, causing an unsigned wrap to a huge value. This can

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  5. CVE-2026-72366

    Kritisch · CVSS 9.8EPSS 0,66%Korrektur verfügbar

    netfs: Fix netfs_create_write_req() to handle async cache object creation

    In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfs_create_write_req() to handle async cache object creation netfs_create_write_req() will skip caching if the fscache cookie is disabled, but this is a problem because async cache object creation might not have got far enough yet that has been enabled - thereby causing the call to fscache_begin_write_operation() to be skipped. Fix this by removing the checks on the cookie and delegating this to fscache_begin_write_operation().

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  6. CVE-2026-72365

    Nicht bewertetEPSS 0,21%Korrektur verfügbar

    netfs: Fix writethrough to use collection offload

    In the Linux kernel, the following vulnerability has been resolved: netfs: Fix writethrough to use collection offload Fix writethrough write to set NETFS_RREQ_OFFLOAD_COLLECTION on the request so that collection is processed asynchronously rather than only right at the end - and also so that asynchronous O_SYNC writes get collected at all.

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  7. CVE-2026-72364

    Hoch · CVSS 7.1EPSS 0,17%Korrektur verfügbar

    netfs: Fix writeback error handling

    In the Linux kernel, the following vulnerability has been resolved: netfs: Fix writeback error handling Fix the error handling in writeback_iter() loop. If an error occurs, writeback_iter() needs to be called again with *error set to the error so that it can clean up iteration state. Further, the current folio needs unlocking and redirtying.

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  8. CVE-2026-72363

    Nicht bewertetEPSS 0,21%Korrektur verfügbar

    netfs: Fix folio state after ENOMEM whilst under writeback iteration

    In the Linux kernel, the following vulnerability has been resolved: netfs: Fix folio state after ENOMEM whilst under writeback iteration Fix the state of the current folio when ENOMEM occurs during writeback iteration. The folio needs to be redirtied and unlocked before the terminal writeback_iter() is invoked.

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  9. CVE-2026-72362

    Nicht bewertetEPSS 0,21%Korrektur verfügbar

    drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry()

    In the Linux kernel, the following vulnerability has been resolved: drm/xe/pt: Fix NULL pointer dereference in xe_pt_zap_ptes_entry() The page-table walk framework may pass a NULL *child pointer for unpopulated entries. xe_pt_zap_ptes_entry() called container_of(*child) before checking for NULL, then dereferenced the result, causing a crash. Move the container_of() call after a NULL guard, so the function returns early instead of proceeding with an invalid pointer. XE_WARN_ON is kept to help root cause the issue, but we now bail instead of crashing the driver. v2: Comment that triggering XE_WARN_ON is unexpected behavior (Matt Brost) (ch

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  10. CVE-2026-72361

    Nicht bewertetEPSS 0,21%Korrektur verfügbar

    drm/xe/hw_engine: Fix double-free of managed BO in error path

    In the Linux kernel, the following vulnerability has been resolved: drm/xe/hw_engine: Fix double-free of managed BO in error path The error path in hw_engine_init() explicitly frees a BO allocated with xe_managed_bo_create_pin_map() via xe_bo_unpin_map_no_vm(). Since the managed BO already has a devm cleanup action registered, this causes a double-free when devm unwinds during probe failure. Remove the explicit free and let devm handle it, consistent with all other xe_managed_bo_create_pin_map() callers. (cherry picked from commit e459a3bdeb117be496d7f229e2ea1f6c9fe4080b)

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  11. CVE-2026-72360

    Hoch · CVSS 8.4EPSS 0,17%Korrektur verfügbar

    drm/xe/pf: Don't attempt to process FAST_REQ or EVENT relays

    In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Don't attempt to process FAST_REQ or EVENT relays Currently defined VF/PF relay actions use regular REQUEST messages only and the PF shouldn't attempt to handle FAST_REQUEST nor EVENT messages as this would result in breaking the VFPF ABI protocol and also might trigger an assert on the PF side. (cherry picked from commit 1714d360fc5ae2e0886a69e979095d9c7ff3568a)

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  12. CVE-2026-72357

    Hoch · CVSS 7.8EPSS 0,17%Korrektur verfügbar

    uprobes/x86: Use proper mm_struct in __in_uprobe_trampoline

    In the Linux kernel, the following vulnerability has been resolved: uprobes/x86: Use proper mm_struct in __in_uprobe_trampoline In the unregister path we use __in_uprobe_trampoline check with current->mm for the VMA lookup, which is wrong, because we are in the tracer context, not the traced process. Add mm_struct pointer argument to __in_uprobe_trampoline and changing related callers to pass proper mm_struct pointer.

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  13. CVE-2026-72356

    Hoch · CVSS 7.5EPSS 0,63%Korrektur verfügbar

    cifs: Fix missing credit release on failure in cifs_issue_read()

    In the Linux kernel, the following vulnerability has been resolved: cifs: Fix missing credit release on failure in cifs_issue_read() Fix missing release of credits in the failure path in cifs_issue_read() lest retrying the subreq just overwrites the credits value.

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  14. CVE-2026-72355

    Kritisch · CVSS 9.8EPSS 0,64%Korrektur verfügbar

    netfs: Fix barriering when walking subrequest list

    In the Linux kernel, the following vulnerability has been resolved: netfs: Fix barriering when walking subrequest list Fix the barriering used when walking the subrequest list in retry as there's a possibility of seeing a subreq that's just been added by the application thread.

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  15. CVE-2026-72352

    Hoch · CVSS 7.8EPSS 0,18%Korrektur verfügbar

    HID: bpf: Fix hid_bpf_get_data() range check

    In the Linux kernel, the following vulnerability has been resolved: HID: bpf: Fix hid_bpf_get_data() range check hid_bpf_get_data() returns a pointer into the HID-BPF context data when the caller-provided offset and size fit inside ctx->allocated_size. The current check adds rdwr_buf_size and offset before comparing the result against ctx->allocated_size. Since both values are unsigned, a very large size can wrap the sum below ctx->allocated_size and make the helper return a pointer even though the requested range is not contained in the backing buffer. Use check_add_overflow() to reject wrapped range ends before comparing the requested r

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  16. CVE-2026-72351

    Kritisch · CVSS 9.8EPSS 0,74%Korrektur verfügbar

    gue: validate REMCSUM private option length

    In the Linux kernel, the following vulnerability has been resolved: gue: validate REMCSUM private option length GUE private flags can indicate that remote checksum offload metadata is present. The private flags field itself is accounted for by guehdr_flags_len(), but guehdr_priv_flags_len() currently returns 0 even when GUE_PFLAG_REMCSUM is set. This lets a packet with only the private flags field pass validate_gue_flags(), after which gue_remcsum() and gue_gro_remcsum() read the missing REMCSUM start/offset fields from the following bytes. Account for GUE_PLEN_REMCSUM when GUE_PFLAG_REMCSUM is present so that malformed packets are reject

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  17. CVE-2026-72350

    Hoch · CVSS 7.8EPSS 0,18%Korrektur verfügbar

    netfilter: xt_u32: reject invalid shift counts

    In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_u32: reject invalid shift counts u32_match_it() executes rule-supplied shift operands on a 32-bit value. A malformed u32 rule can provide a shift count of 32 or more, triggering an undefined shift out-of-bounds during packet evaluation. Validate XT_U32_LEFTSH and XT_U32_RIGHTSH operands in u32_mt_checkentry() and reject malformed rules before they reach the packet path.

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  18. CVE-2026-72349

    Nicht bewertetEPSS 0,22%Korrektur verfügbar

    netfilter: xt_rateest: fix u64 truncation in xt_rateest_mt()

    In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_rateest: fix u64 truncation in xt_rateest_mt() On links faster than ~34 Gbps, where byte rate may exceed 2^32-1 (~ 4.3 GBps), the comparison result becomes incorrect because the truncated value no longer reflects the actual estimator rate. Fix by changing the local variables to u64.

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  19. CVE-2026-72348

    Kritisch · CVSS 9.1EPSS 0,63%Korrektur verfügbar

    netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop

    In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop The ah, hbh and rt matches check that the fixed extension header is present, then use the header length field to derive the advertised extension header length for matching. For the ah match, add the missing advertised-length check. For hbh and rt, update the existing advertised-length checks. In all three cases, set hotdrop to true before returning false when the advertised extension header length exceeds the available skb data. Returning false treats the packet as a rule mismatch. Set hotdrop to true

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  20. CVE-2026-72347

    Hoch · CVSS 7.3EPSS 0,17%Korrektur verfügbar

    netfilter: xt_connmark: reject invalid shift parameters

    In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_connmark: reject invalid shift parameters Revision 2 of the CONNMARK target accepts user-controlled shift parameters and applies them to 32-bit mark values in connmark_tg_shift(). A shift_bits value of 32 or more triggers an undefined-shift bug when the rule is evaluated. Invalid shift_dir values are also accepted and silently fall back to the left-shift path. Reject invalid revision-2 shift parameters in connmark_tg_check() so malformed rules fail at installation time, before they can reach the packet path.

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