Vulnerability-Lookup

CERTFR-2026-AVI-0519

Vulnerability from certfr_avis - Published: 2026-04-30 - Updated: 2026-04-30

De multiples vulnérabilités ont été découvertes dans Microsoft Azure Linux. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Microsoft	Azure Linux	azl3 cups 2.4.16-1 versions antérieures à 2.4.18-1
Microsoft	Azure Linux	azl3 kernel 6.6.130.1-3 versions antérieures à 6.6.134.1-2
Microsoft	Azure Linux	azl3 ruby 3.3.5-7 versions antérieures à 3.3.5-8
Microsoft	Azure Linux	azl3 libgcrypt 1.10.3-1 versions antérieures à 1.10.3-2

References

Title

Publication Time

CVE-2026-23360 (GCVE-0-2026-23360)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-05-23 16:04

Title

nvme: fix admin queue leak on controller reset

Summary

In the Linux kernel, the following vulnerability has been resolved: nvme: fix admin queue leak on controller reset When nvme_alloc_admin_tag_set() is called during a controller reset, a previous admin queue may still exist. Release it properly before allocating a new one to avoid orphaning the old queue. This fixes a regression introduced by commit 03b3bcd319b3 ("nvme: fix admin request_queue lifetime").

Severity

No CVSS data available.

Assigner

Linux

References

7 references

URL	Tags
https://git.kernel.org/stable/c/089a6f17881a82c6c…
https://git.kernel.org/stable/c/6e28bab900e40e4d6…
https://git.kernel.org/stable/c/2efbc838a26d3da72…
https://git.kernel.org/stable/c/64f87b96de0e645a4…
https://git.kernel.org/stable/c/e159eb852aeee9544…
https://git.kernel.org/stable/c/8eb2b3cdcd9b6631b…
https://git.kernel.org/stable/c/b84bb7bd913d8ca2f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: ff037b5f47eeccc1636c03f84cd47db094eb73c9 , < 089a6f17881a82c6c6e05f8564a867be0767eade (git) Affected: 4896491c497226022626c3acc46044fd182f943c , < 6e28bab900e40e4d610b04f9f82e01983d8fb356 (git) Affected: a505f0ba36ab24176c300d7ff56aff85c2977e6c , < 2efbc838a26d3da72d8fe05770bdf869d4ca3ac5 (git) Affected: e8061d02b49c5c901980f58d91e96580e9a14acf , < 64f87b96de0e645a4c066c7cffd753f334446db6 (git) Affected: 03b3bcd319b3ab5182bc9aaa0421351572c78ac0 , < e159eb852aeee95443a9458ecb7d072bbb689913 (git) Affected: 03b3bcd319b3ab5182bc9aaa0421351572c78ac0 , < 8eb2b3cdcd9b6631b94b82c1f4f6bc32b40d942f (git) Affected: 03b3bcd319b3ab5182bc9aaa0421351572c78ac0 , < b84bb7bd913d8ca2f976ee6faf4a174f91c02b8d (git) Affected: e7dac681790556c131854b97551337aa8042215b (git) Affected: 6.1.167 , < 6.1.168 (semver) Affected: 6.6.120 , < 6.6.131 (semver) Affected: 6.12.62 , < 6.12.77 (semver) Affected: 6.17.12 , < 6.18 (semver)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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JSON

To clipboard

{
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          "programFiles": [
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.19.7",
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              "version": "7.0",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: fix admin queue leak on controller reset\n\nWhen nvme_alloc_admin_tag_set() is called during a controller reset,\na previous admin queue may still exist. Release it properly before\nallocating a new one to avoid orphaning the old queue.\n\nThis fixes a regression introduced by commit 03b3bcd319b3 (\"nvme: fix\nadmin request_queue lifetime\")."
        }
      ],
      "providerMetadata": {
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}

CVE-2026-23414 (GCVE-0-2026-23414)

Vulnerability from cvelistv5 – Published: 2026-04-02 11:40 – Updated: 2026-05-23 16:04

Title

tls: Purge async_hold in tls_decrypt_async_wait()

Summary

In the Linux kernel, the following vulnerability has been resolved: tls: Purge async_hold in tls_decrypt_async_wait() The async_hold queue pins encrypted input skbs while the AEAD engine references their scatterlist data. Once tls_decrypt_async_wait() returns, every AEAD operation has completed and the engine no longer references those skbs, so they can be freed unconditionally. A subsequent patch adds batch async decryption to tls_sw_read_sock(), introducing a new call site that must drain pending AEAD operations and release held skbs. Move __skb_queue_purge(&ctx->async_hold) into tls_decrypt_async_wait() so the purge is centralized and every caller -- recvmsg's drain path, the -EBUSY fallback in tls_do_decryption(), and the new read_sock batch path -- releases held skbs on synchronization without each site managing the purge independently. This fixes a leak when tls_strp_msg_hold() fails part-way through, after having added some cloned skbs to the async_hold queue. tls_decrypt_sg() will then call tls_decrypt_async_wait() to process all pending decrypts, and drop back to synchronous mode, but tls_sw_recvmsg() only flushes the async_hold queue when one record has been processed in "fully-async" mode, which may not be the case here. [pabeni@redhat.com: added leak comment]

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/ac435be7c7613eb13…
https://git.kernel.org/stable/c/2dcf324855c34e7f9…
https://git.kernel.org/stable/c/6dc11e0bd0a5466bc…
https://git.kernel.org/stable/c/9f557c7eae127b44d…
https://git.kernel.org/stable/c/fd8037e1f18ca5336…
https://git.kernel.org/stable/c/84a8335d8300576f1…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9f83fd0c179e0f458e824e417f9d5ad53443f685 , < ac435be7c7613eb13a5a8ceb5182e10b50c9ce87 (git) Affected: c61d4368197d65c4809d9271f3b85325a600586a , < 2dcf324855c34e7f934ce978aa19b645a8f3ee71 (git) Affected: 39dec4ea3daf77f684308576baf483b55ca7f160 , < 6dc11e0bd0a5466bcc76d275c09e5537bd0597dd (git) Affected: b8a6ff84abbcbbc445463de58704686011edc8e1 , < 9f557c7eae127b44d2e863917dc986a4b6cb1269 (git) Affected: b8a6ff84abbcbbc445463de58704686011edc8e1 , < fd8037e1f18ca5336934d0e0e7e1a4fe097e749d (git) Affected: b8a6ff84abbcbbc445463de58704686011edc8e1 , < 84a8335d8300576f1b377ae24abca1d9f197807f (git) Affected: 4fc109d0ab196bd943b7451276690fb6bb48c2e0 (git) Affected: 6.1.158 , < 6.1.168 (semver) Affected: 6.6.114 , < 6.6.131 (semver) Affected: 6.12.55 , < 6.12.80 (semver) Affected: 6.17.5 , < 6.18 (semver)
Linux	Linux	Affected: 6.18 Unaffected: 0 , < 6.18 (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/tls/tls_sw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "versionType": "git"
            },
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              "status": "affected",
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntls: Purge async_hold in tls_decrypt_async_wait()\n\nThe async_hold queue pins encrypted input skbs while\nthe AEAD engine references their scatterlist data. Once\ntls_decrypt_async_wait() returns, every AEAD operation\nhas completed and the engine no longer references those\nskbs, so they can be freed unconditionally.\n\nA subsequent patch adds batch async decryption to\ntls_sw_read_sock(), introducing a new call site that\nmust drain pending AEAD operations and release held\nskbs. Move __skb_queue_purge(\u0026ctx-\u003easync_hold) into\ntls_decrypt_async_wait() so the purge is centralized\nand every caller -- recvmsg\u0027s drain path, the -EBUSY\nfallback in tls_do_decryption(), and the new read_sock\nbatch path -- releases held skbs on synchronization\nwithout each site managing the purge independently.\n\nThis fixes a leak when tls_strp_msg_hold() fails part-way through,\nafter having added some cloned skbs to the async_hold\nqueue. tls_decrypt_sg() will then call tls_decrypt_async_wait() to\nprocess all pending decrypts, and drop back to synchronous mode, but\ntls_sw_recvmsg() only flushes the async_hold queue when one record has\nbeen processed in \"fully-async\" mode, which may not be the case here.\n\n[pabeni@redhat.com: added leak comment]"
        }
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CVE-2026-27820 (GCVE-0-2026-27820)

Vulnerability from cvelistv5 – Published: 2026-04-16 17:27 – Updated: 2026-04-16 18:20

Title

zlib: Buffer Overflow in Zlib::GzipReader ungetc via large input leads to memory corruption

Summary

zlib is a Ruby interface for the zlib compression/decompression library. Versions 3.0.0 and below, 3.1.0, 3.1.1, 3.2.0 and 3.2.1 contain a buffer overflow vulnerability in the Zlib::GzipReader. The zstream_buffer_ungets function prepends caller-provided bytes ahead of previously produced output but fails to guarantee the backing Ruby string has enough capacity before the memmove shifts the existing data. This can lead to memory corruption when the buffer length exceeds capacity. This issue has been fixed in versions 3.0.1, 3.1.2 and 3.2.3.

Severity

1.7 (Low)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U

CWE

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-131 - Incorrect Calculation of Buffer Size

Assigner

GitHub_M

References

2 references

URL	Tags
https://github.com/ruby/zlib/security/advisories/…	x_refsource_CONFIRM
https://hackerone.com/reports/3467067	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
ruby	zlib	Affected: < 3.0.1 Affected: >= 3.1.0, < 3.1.2 Affected: >= 3.2.0, < 3.2.3

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JSON

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CVE-2026-31439 (GCVE-0-2026-31439)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-11 22:08

Title

dmaengine: xilinx: xdma: Fix regmap init error handling

Summary

In the Linux kernel, the following vulnerability has been resolved: dmaengine: xilinx: xdma: Fix regmap init error handling devm_regmap_init_mmio returns an ERR_PTR() upon error, not NULL. Fix the error check and also fix the error message. Use the error code from ERR_PTR() instead of the wrong value in ret.

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/4b6e1da50b22e5528…
https://git.kernel.org/stable/c/9787b3d9b908785b4…
https://git.kernel.org/stable/c/f27197ccfd2ecd2c7…
https://git.kernel.org/stable/c/59f6ccd0f3345be2e…
https://git.kernel.org/stable/c/e0adbf74e2a0455a6…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 17ce252266c7f016ece026492c45838f852ddc79 , < 4b6e1da50b22e5528b9003f376a3cecccce4decc (git) Affected: 17ce252266c7f016ece026492c45838f852ddc79 , < 9787b3d9b908785b40bc3f2e6d7082fdb8fdd98a (git) Affected: 17ce252266c7f016ece026492c45838f852ddc79 , < f27197ccfd2ecd2c71f27fd57c6d507e892ad24d (git) Affected: 17ce252266c7f016ece026492c45838f852ddc79 , < 59f6ccd0f3345be2e8a78bdef2103e93f180633a (git) Affected: 17ce252266c7f016ece026492c45838f852ddc79 , < e0adbf74e2a0455a6bc9628726ba87bcd0b42bf8 (git)
Linux	Linux	Affected: 6.3 Unaffected: 0 , < 6.3 (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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CVE-2026-31441 (GCVE-0-2026-31441)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-23 16:05

Title

dmaengine: idxd: Fix memory leak when a wq is reset

Summary

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix memory leak when a wq is reset idxd_wq_disable_cleanup() which is called from the reset path for a workqueue, sets the wq type to NONE, which for other parts of the driver mean that the wq is empty (all its resources were released). Only set the wq type to NONE after its resources are released.

Severity

No CVSS data available.

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/a16098a2f0c11ee5e…
https://git.kernel.org/stable/c/54d77cc0c40ca2f89…
https://git.kernel.org/stable/c/39c1504e0e76bcfb9…
https://git.kernel.org/stable/c/a9e7815d38629bcf5…
https://git.kernel.org/stable/c/0c3d3ac57e3c52b57…
https://git.kernel.org/stable/c/d9cfb5193a047a92a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < a16098a2f0c11ee5e04e23aa7478ca1fcfb0f658 (git) Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < 54d77cc0c40ca2f894859dc7b3c52997574f1a2a (git) Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < 39c1504e0e76bcfb93991fd94288a83e05d13b51 (git) Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < a9e7815d38629bcf59d3005001f1f315424a58de (git) Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < 0c3d3ac57e3c52b570b8c695903306bff07e04c8 (git) Affected: da32b28c95a79e399e18c03f8178f41aec9c66e4 , < d9cfb5193a047a92a4d3c0e91ea4cc87c8f7c478 (git) Affected: 2a2df2bd10de44c3804661ed15157817c12d6291 (git) Affected: 5.7.10 , < 5.8 (semver)
Linux	Linux	Affected: 5.8 Unaffected: 0 , < 5.8 (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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          "url": "https://git.kernel.org/stable/c/d9cfb5193a047a92a4d3c0e91ea4cc87c8f7c478"
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      "title": "dmaengine: idxd: Fix memory leak when a wq is reset",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31441",
    "datePublished": "2026-04-22T13:53:39.055Z",
    "dateReserved": "2026-03-09T15:48:24.090Z",
    "dateUpdated": "2026-05-23T16:05:04.689Z",
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}

CVE-2026-31444 (GCVE-0-2026-31444)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-11 22:08

Title

ksmbd: fix use-after-free and NULL deref in smb_grant_oplock()

Summary

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free and NULL deref in smb_grant_oplock() smb_grant_oplock() has two issues in the oplock publication sequence: 1) opinfo is linked into ci->m_op_list (via opinfo_add) before add_lease_global_list() is called. If add_lease_global_list() fails (kmalloc returns NULL), the error path frees the opinfo via __free_opinfo() while it is still linked in ci->m_op_list. Concurrent m_op_list readers (opinfo_get_list, or direct iteration in smb_break_all_levII_oplock) dereference the freed node. 2) opinfo->o_fp is assigned after add_lease_global_list() publishes the opinfo on the global lease list. A concurrent find_same_lease_key() can walk the lease list and dereference opinfo->o_fp->f_ci while o_fp is still NULL. Fix by restructuring the publication sequence to eliminate post-publish failure: - Set opinfo->o_fp before any list publication (fixes NULL deref). - Preallocate lease_table via alloc_lease_table() before opinfo_add() so add_lease_global_list() becomes infallible after publication. - Keep the original m_op_list publication order (opinfo_add before lease list) so concurrent opens via same_client_has_lease() and opinfo_get_list() still see the in-flight grant. - Use opinfo_put() instead of __free_opinfo() on err_out so that the RCU-deferred free path is used. This also requires splitting add_lease_global_list() to take a preallocated lease_table and changing its return type from int to void, since it can no longer fail.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/9e785f004cbc56390…
https://git.kernel.org/stable/c/7de55bba69cbf0f92…
https://git.kernel.org/stable/c/a5c6f6d6ceefed2d5…
https://git.kernel.org/stable/c/6d7e5a918c1d0aad0…
https://git.kernel.org/stable/c/48623ec358c1c600f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 302fef75512b2c8329a3f5efab1ae7ba2562387a , < 9e785f004cbc56390479b77375726ea9b0d1a8a6 (git) Affected: 08aa9f3c8cf4d0bee44df540dfe34e8d64069f2c , < 7de55bba69cbf0f9280daaea385daf08bc076121 (git) Affected: 1d6abf145615dbfe267ce3b0a271f95e3780e18e , < a5c6f6d6ceefed2d5210ee420fb75f8362461f46 (git) Affected: ce8507ee82c888126d8e7565e27c016308d24cde , < 6d7e5a918c1d0aad06db0e17677b66fc9a471021 (git) Affected: 1dfd062caa165ec9d7ee0823087930f3ab8a6294 , < 48623ec358c1c600fa1e38368746f933e0f1a617 (git)
Linux	Linux	Affected: 6.6.130 , < 6.6.131 (semver) Affected: 6.12.78 , < 6.12.80 (semver) Affected: 6.18.19 , < 6.18.21 (semver) Affected: 6.19.9 , < 6.19.11 (semver)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/oplock.c"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free and NULL deref in smb_grant_oplock()\n\nsmb_grant_oplock() has two issues in the oplock publication sequence:\n\n1) opinfo is linked into ci-\u003em_op_list (via opinfo_add) before\n   add_lease_global_list() is called.  If add_lease_global_list()\n   fails (kmalloc returns NULL), the error path frees the opinfo\n   via __free_opinfo() while it is still linked in ci-\u003em_op_list.\n   Concurrent m_op_list readers (opinfo_get_list, or direct iteration\n   in smb_break_all_levII_oplock) dereference the freed node.\n\n2) opinfo-\u003eo_fp is assigned after add_lease_global_list() publishes\n   the opinfo on the global lease list.  A concurrent\n   find_same_lease_key() can walk the lease list and dereference\n   opinfo-\u003eo_fp-\u003ef_ci while o_fp is still NULL.\n\nFix by restructuring the publication sequence to eliminate post-publish\nfailure:\n\n- Set opinfo-\u003eo_fp before any list publication (fixes NULL deref).\n- Preallocate lease_table via alloc_lease_table() before opinfo_add()\n  so add_lease_global_list() becomes infallible after publication.\n- Keep the original m_op_list publication order (opinfo_add before\n  lease list) so concurrent opens via same_client_has_lease() and\n  opinfo_get_list() still see the in-flight grant.\n- Use opinfo_put() instead of __free_opinfo() on err_out so that\n  the RCU-deferred free path is used.\n\nThis also requires splitting add_lease_global_list() to take a\npreallocated lease_table and changing its return type from int to void,\nsince it can no longer fail."
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CVE-2026-31446 (GCVE-0-2026-31446)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-23 16:05

Title

ext4: fix use-after-free in update_super_work when racing with umount

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in update_super_work when racing with umount Commit b98535d09179 ("ext4: fix bug_on in start_this_handle during umount filesystem") moved ext4_unregister_sysfs() before flushing s_sb_upd_work to prevent new error work from being queued via /proc/fs/ext4/xx/mb_groups reads during unmount. However, this introduced a use-after-free because update_super_work calls ext4_notify_error_sysfs() -> sysfs_notify() which accesses the kobject's kernfs_node after it has been freed by kobject_del() in ext4_unregister_sysfs(): update_super_work ext4_put_super ----------------- -------------- ext4_unregister_sysfs(sb) kobject_del(&sbi->s_kobj) __kobject_del() sysfs_remove_dir() kobj->sd = NULL sysfs_put(sd) kernfs_put() // RCU free ext4_notify_error_sysfs(sbi) sysfs_notify(&sbi->s_kobj) kn = kobj->sd // stale pointer kernfs_get(kn) // UAF on freed kernfs_node ext4_journal_destroy() flush_work(&sbi->s_sb_upd_work) Instead of reordering the teardown sequence, fix this by making ext4_notify_error_sysfs() detect that sysfs has already been torn down by checking s_kobj.state_in_sysfs, and skipping the sysfs_notify() call in that case. A dedicated mutex (s_error_notify_mutex) serializes ext4_notify_error_sysfs() against kobject_del() in ext4_unregister_sysfs() to prevent TOCTOU races where the kobject could be deleted between the state_in_sysfs check and the sysfs_notify() call.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Assigner

Linux

References

7 references

URL	Tags
https://git.kernel.org/stable/c/c8fe17a1b308c3d8c…
https://git.kernel.org/stable/c/c4d829737329f2290…
https://git.kernel.org/stable/c/9449f99ba04f5dd1c…
https://git.kernel.org/stable/c/034053378dd81837f…
https://git.kernel.org/stable/c/c97e282f7bfd0c355…
https://git.kernel.org/stable/c/08b10e6f37fc533a7…
https://git.kernel.org/stable/c/d15e4b0a418537aaf…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 52c3a04f9ec2a16a4204d6274db338cb8d5b2d74 , < c8fe17a1b308c3d8c703ebfb049b325f844342c3 (git) Affected: b98535d091795a79336f520b0708457aacf55c67 , < c4d829737329f2290dd41e290b7d75effdb2a7ff (git) Affected: b98535d091795a79336f520b0708457aacf55c67 , < 9449f99ba04f5dd1c8423ad8a90b3651d7240d1d (git) Affected: b98535d091795a79336f520b0708457aacf55c67 , < 034053378dd81837fd6c7a43b37ee2e58d4f0b4e (git) Affected: b98535d091795a79336f520b0708457aacf55c67 , < c97e282f7bfd0c3554c63d289964a5ca6a1d2ffe (git) Affected: b98535d091795a79336f520b0708457aacf55c67 , < 08b10e6f37fc533a759e9833af0692242e8b3f93 (git) Affected: b98535d091795a79336f520b0708457aacf55c67 , < d15e4b0a418537aafa56b2cb80d44add83e83697 (git) Affected: 585ef03c9e79672781f954daae730dfe24bf3a46 (git) Affected: afe490e48d47df1b3f64012835c1bc2f075a8c8b (git) Affected: 5.15.38 , < 5.15.203 (semver) Affected: 5.10.114 , < 5.11 (semver) Affected: 5.17.6 , < 5.18 (semver)
Linux	Linux	Affected: 5.18 Unaffected: 0 , < 5.18 (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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      "affected": [
        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "fs/ext4/ext4.h",
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}

CVE-2026-31447 (GCVE-0-2026-31447)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-11 22:08

Title

ext4: reject mount if bigalloc with s_first_data_block != 0

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: reject mount if bigalloc with s_first_data_block != 0 bigalloc with s_first_data_block != 0 is not supported, reject mounting it.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/5ad6d994255e27a32…
https://git.kernel.org/stable/c/3a926957cc95899ef…
https://git.kernel.org/stable/c/7b58c110b4e1f028e…
https://git.kernel.org/stable/c/b77de3fceafbb39f3…
https://git.kernel.org/stable/c/d787d3ae96648dc14…
https://git.kernel.org/stable/c/ad1f6d608f33f59d2…
https://git.kernel.org/stable/c/7d5b04290156c3fc3…
https://git.kernel.org/stable/c/3822743dc20386d98…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 281b59959707dfae03ce038cdf231bf4904e170c , < 5ad6d994255e27a3254079dfb50ca861fc31f2d0 (git) Affected: 281b59959707dfae03ce038cdf231bf4904e170c , < 3a926957cc95899ef88529710836edadc03c71a1 (git) Affected: 281b59959707dfae03ce038cdf231bf4904e170c , < 7b58c110b4e1f028eb38eec9ed3555e9be81c8b0 (git) Affected: 281b59959707dfae03ce038cdf231bf4904e170c , < b77de3fceafbb39f30e4ff5dc986f863d5456417 (git) Affected: 281b59959707dfae03ce038cdf231bf4904e170c , < d787d3ae96648dc14a3b7ca8fde817177e82c1c7 (git) Affected: 281b59959707dfae03ce038cdf231bf4904e170c , < ad1f6d608f33f59d21a3d025615d6786a6443998 (git) Affected: 281b59959707dfae03ce038cdf231bf4904e170c , < 7d5b04290156c3fc316eecc86a4f9d201ab7d44a (git) Affected: 281b59959707dfae03ce038cdf231bf4904e170c , < 3822743dc20386d9897e999dbb990befa3a5b3f8 (git)
Linux	Linux	Affected: 3.2 Unaffected: 0 , < 3.2 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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CVE-2026-31448 (GCVE-0-2026-31448)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-11 22:08

Title

ext4: avoid infinite loops caused by residual data

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid infinite loops caused by residual data On the mkdir/mknod path, when mapping logical blocks to physical blocks, if inserting a new extent into the extent tree fails (in this example, because the file system disabled the huge file feature when marking the inode as dirty), ext4_ext_map_blocks() only calls ext4_free_blocks() to reclaim the physical block without deleting the corresponding data in the extent tree. This causes subsequent mkdir operations to reference the previously reclaimed physical block number again, even though this physical block is already being used by the xattr block. Therefore, a situation arises where both the directory and xattr are using the same buffer head block in memory simultaneously. The above causes ext4_xattr_block_set() to enter an infinite loop about "inserted" and cannot release the inode lock, ultimately leading to the 143s blocking problem mentioned in [1]. If the metadata is corrupted, then trying to remove some extent space can do even more harm. Also in case EXT4_GET_BLOCKS_DELALLOC_RESERVE was passed, remove space wrongly update quota information. Jan Kara suggests distinguishing between two cases: 1) The error is ENOSPC or EDQUOT - in this case the filesystem is fully consistent and we must maintain its consistency including all the accounting. However these errors can happen only early before we've inserted the extent into the extent tree. So current code works correctly for this case. 2) Some other error - this means metadata is corrupted. We should strive to do as few modifications as possible to limit damage. So I'd just skip freeing of allocated blocks. [1] INFO: task syz.0.17:5995 blocked for more than 143 seconds. Call Trace: inode_lock_nested include/linux/fs.h:1073 [inline] __start_dirop fs/namei.c:2923 [inline] start_dirop fs/namei.c:2934 [inline]

Severity

9.4 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/c66545e83a802c385…
https://git.kernel.org/stable/c/ecc50bfca9b5c2ee6…
https://git.kernel.org/stable/c/3a7667595bcad84da…
https://git.kernel.org/stable/c/416c86f30f91b4fb2…
https://git.kernel.org/stable/c/64f425b06b3bea9ab…
https://git.kernel.org/stable/c/5422fe71d26d42af6…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 315054f023d28ee64f308adf8b5737831541776b , < c66545e83a802c3851d9be27a41c0479dd29ff0c (git) Affected: 315054f023d28ee64f308adf8b5737831541776b , < ecc50bfca9b5c2ee6aeef998181689b80477367b (git) Affected: 315054f023d28ee64f308adf8b5737831541776b , < 3a7667595bcad84da53fc156a418e110267c3412 (git) Affected: 315054f023d28ee64f308adf8b5737831541776b , < 416c86f30f91b4fb2642ef6b102596ca898f41a5 (git) Affected: 315054f023d28ee64f308adf8b5737831541776b , < 64f425b06b3bea9abc8977fd3982779b3ad070c9 (git) Affected: 315054f023d28ee64f308adf8b5737831541776b , < 5422fe71d26d42af6c454ca9527faaad4e677d6c (git)
Linux	Linux	Affected: 2.6.22 Unaffected: 0 , < 2.6.22 (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.131 , ≤ 6.6.* (semver) Unaffected: 6.12.80 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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      "affected": [
        {
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CVE-2026-31450 (GCVE-0-2026-31450)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:53 – Updated: 2026-05-11 22:08

Title

ext4: publish jinode after initialization

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: publish jinode after initialization ext4_inode_attach_jinode() publishes ei->jinode to concurrent users. It used to set ei->jinode before jbd2_journal_init_jbd_inode(), allowing a reader to observe a non-NULL jinode with i_vfs_inode still unset. The fast commit flush path can then pass this jinode to jbd2_wait_inode_data(), which dereferences i_vfs_inode->i_mapping and may crash. Below is the crash I observe: ``` BUG: unable to handle page fault for address: 000000010beb47f4 PGD 110e51067 P4D 110e51067 PUD 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 1 UID: 0 PID: 4850 Comm: fc_fsync_bench_ Not tainted 6.18.0-00764-g795a690c06a5 #1 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.17.0-2-2 04/01/2014 RIP: 0010:xas_find_marked+0x3d/0x2e0 Code: e0 03 48 83 f8 02 0f 84 f0 01 00 00 48 8b 47 08 48 89 c3 48 39 c6 0f 82 fd 01 00 00 48 85 c9 74 3d 48 83 f9 03 77 63 4c 8b 0f <49> 8b 71 08 48 c7 47 18 00 00 00 00 48 89 f1 83 e1 03 48 83 f9 02 RSP: 0018:ffffbbee806e7bf0 EFLAGS: 00010246 RAX: 000000000010beb4 RBX: 000000000010beb4 RCX: 0000000000000003 RDX: 0000000000000001 RSI: 0000002000300000 RDI: ffffbbee806e7c10 RBP: 0000000000000001 R08: 0000002000300000 R09: 000000010beb47ec R10: ffff9ea494590090 R11: 0000000000000000 R12: 0000002000300000 R13: ffffbbee806e7c90 R14: ffff9ea494513788 R15: ffffbbee806e7c88 FS: 00007fc2f9e3e6c0(0000) GS:ffff9ea6b1444000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000010beb47f4 CR3: 0000000119ac5000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> filemap_get_folios_tag+0x87/0x2a0 __filemap_fdatawait_range+0x5f/0xd0 ? srso_alias_return_thunk+0x5/0xfbef5 ? __schedule+0x3e7/0x10c0 ? srso_alias_return_thunk+0x5/0xfbef5 ? srso_alias_return_thunk+0x5/0xfbef5 ? srso_alias_return_thunk+0x5/0xfbef5 ? preempt_count_sub+0x5f/0x80 ? srso_alias_return_thunk+0x5/0xfbef5 ? cap_safe_nice+0x37/0x70 ? srso_alias_return_thunk+0x5/0xfbef5 ? preempt_count_sub+0x5f/0x80 ? srso_alias_return_thunk+0x5/0xfbef5 filemap_fdatawait_range_keep_errors+0x12/0x40 ext4_fc_commit+0x697/0x8b0 ? ext4_file_write_iter+0x64b/0x950 ? srso_alias_return_thunk+0x5/0xfbef5 ? preempt_count_sub+0x5f/0x80 ? srso_alias_return_thunk+0x5/0xfbef5 ? vfs_write+0x356/0x480 ? srso_alias_return_thunk+0x5/0xfbef5 ? preempt_count_sub+0x5f/0x80 ext4_sync_file+0xf7/0x370 do_fsync+0x3b/0x80 ? syscall_trace_enter+0x108/0x1d0 __x64_sys_fdatasync+0x16/0x20 do_syscall_64+0x62/0x2c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e ... ``` Fix this by initializing the jbd2_inode first. Use smp_wmb() and WRITE_ONCE() to publish ei->jinode after initialization. Readers use READ_ONCE() to fetch the pointer.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/2d2b648960147d078…
https://git.kernel.org/stable/c/e4325e84727e539c8…
https://git.kernel.org/stable/c/be54c0055407a73b6…
https://git.kernel.org/stable/c/a070d5a872ffe0e0f…
https://git.kernel.org/stable/c/e76bcb727e4874a2f…
https://git.kernel.org/stable/c/4855a59e21789c79f…
https://git.kernel.org/stable/c/33f486987af21531a…
https://git.kernel.org/stable/c/1aec30021edd410b9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: a361293f5fedea0016a10599f409631a15d47ee7 , < 2d2b648960147d078b000b9a7494017082024366 (git) Affected: a361293f5fedea0016a10599f409631a15d47ee7 , < e4325e84727e539c8597bd5b8491349f57f7fb17 (git) Affected: a361293f5fedea0016a10599f409631a15d47ee7 , < be54c0055407a73b60349c093c8ce621cb8fa232 (git) Affected: a361293f5fedea0016a10599f409631a15d47ee7 , < a070d5a872ffe0e0fe5c46eda6386140ded39adb (git) Affected: a361293f5fedea0016a10599f409631a15d47ee7 , < e76bcb727e4874a2f9d0297f8e3f8eced89b0764 (git) Affected: a361293f5fedea0016a10599f409631a15d47ee7 , < 4855a59e21789c79f003a9b5f4135c95a7495c6b (git) Affected: a361293f5fedea0016a10599f409631a15d47ee7 , < 33f486987af21531a7b18973d11795ede3da9ddd (git) Affected: a361293f5fedea0016a10599f409631a15d47ee7 , < 1aec30021edd410b986c156f195f3d23959a9d11 (git)
Linux	Linux	Affected: 3.11 Unaffected: 0 , < 3.11 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.134 , ≤ 6.6.* (semver) Unaffected: 6.12.81 , ≤ 6.12.* (semver) Unaffected: 6.18.21 , ≤ 6.18.* (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: publish jinode after initialization\n\next4_inode_attach_jinode() publishes ei-\u003ejinode to concurrent users.\nIt used to set ei-\u003ejinode before jbd2_journal_init_jbd_inode(),\nallowing a reader to observe a non-NULL jinode with i_vfs_inode\nstill unset.\n\nThe fast commit flush path can then pass this jinode to\njbd2_wait_inode_data(), which dereferences i_vfs_inode-\u003ei_mapping and\nmay crash.\n\nBelow is the crash I observe:\n```\nBUG: unable to handle page fault for address: 000000010beb47f4\nPGD 110e51067 P4D 110e51067 PUD 0\nOops: Oops: 0000 [#1] SMP NOPTI\nCPU: 1 UID: 0 PID: 4850 Comm: fc_fsync_bench_ Not tainted 6.18.0-00764-g795a690c06a5 #1 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.17.0-2-2 04/01/2014\nRIP: 0010:xas_find_marked+0x3d/0x2e0\nCode: e0 03 48 83 f8 02 0f 84 f0 01 00 00 48 8b 47 08 48 89 c3 48 39 c6 0f 82 fd 01 00 00 48 85 c9 74 3d 48 83 f9 03 77 63 4c 8b 0f \u003c49\u003e 8b 71 08 48 c7 47 18 00 00 00 00 48 89 f1 83 e1 03 48 83 f9 02\nRSP: 0018:ffffbbee806e7bf0 EFLAGS: 00010246\nRAX: 000000000010beb4 RBX: 000000000010beb4 RCX: 0000000000000003\nRDX: 0000000000000001 RSI: 0000002000300000 RDI: ffffbbee806e7c10\nRBP: 0000000000000001 R08: 0000002000300000 R09: 000000010beb47ec\nR10: ffff9ea494590090 R11: 0000000000000000 R12: 0000002000300000\nR13: ffffbbee806e7c90 R14: ffff9ea494513788 R15: ffffbbee806e7c88\nFS: 00007fc2f9e3e6c0(0000) GS:ffff9ea6b1444000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000000010beb47f4 CR3: 0000000119ac5000 CR4: 0000000000750ef0\nPKRU: 55555554\nCall Trace:\n\u003cTASK\u003e\nfilemap_get_folios_tag+0x87/0x2a0\n__filemap_fdatawait_range+0x5f/0xd0\n? srso_alias_return_thunk+0x5/0xfbef5\n? __schedule+0x3e7/0x10c0\n? srso_alias_return_thunk+0x5/0xfbef5\n? srso_alias_return_thunk+0x5/0xfbef5\n? srso_alias_return_thunk+0x5/0xfbef5\n? preempt_count_sub+0x5f/0x80\n? srso_alias_return_thunk+0x5/0xfbef5\n? cap_safe_nice+0x37/0x70\n? srso_alias_return_thunk+0x5/0xfbef5\n? preempt_count_sub+0x5f/0x80\n? srso_alias_return_thunk+0x5/0xfbef5\nfilemap_fdatawait_range_keep_errors+0x12/0x40\next4_fc_commit+0x697/0x8b0\n? ext4_file_write_iter+0x64b/0x950\n? srso_alias_return_thunk+0x5/0xfbef5\n? preempt_count_sub+0x5f/0x80\n? srso_alias_return_thunk+0x5/0xfbef5\n? vfs_write+0x356/0x480\n? srso_alias_return_thunk+0x5/0xfbef5\n? preempt_count_sub+0x5f/0x80\next4_sync_file+0xf7/0x370\ndo_fsync+0x3b/0x80\n? syscall_trace_enter+0x108/0x1d0\n__x64_sys_fdatasync+0x16/0x20\ndo_syscall_64+0x62/0x2c0\nentry_SYSCALL_64_after_hwframe+0x76/0x7e\n...\n```\n\nFix this by initializing the jbd2_inode first.\nUse smp_wmb() and WRITE_ONCE() to publish ei-\u003ejinode after\ninitialization. Readers use READ_ONCE() to fetch the pointer."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:08:56.620Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2d2b648960147d078b000b9a7494017082024366"
        },
        {
          "url": "https://git.kernel.org/stable/c/e4325e84727e539c8597bd5b8491349f57f7fb17"
        },
        {
          "url": "https://git.kernel.org/stable/c/be54c0055407a73b60349c093c8ce621cb8fa232"
        },
        {
          "url": "https://git.kernel.org/stable/c/a070d5a872ffe0e0fe5c46eda6386140ded39adb"
        },
        {
          "url": "https://git.kernel.org/stable/c/e76bcb727e4874a2f9d0297f8e3f8eced89b0764"
        },
        {
          "url": "https://git.kernel.org/stable/c/4855a59e21789c79f003a9b5f4135c95a7495c6b"
        },
        {
          "url": "https://git.kernel.org/stable/c/33f486987af21531a7b18973d11795ede3da9ddd"
        },
        {
          "url": "https://git.kernel.org/stable/c/1aec30021edd410b986c156f195f3d23959a9d11"
        }
      ],
      "title": "ext4: publish jinode after initialization",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31450",
    "datePublished": "2026-04-22T13:53:45.532Z",
    "dateReserved": "2026-03-09T15:48:24.091Z",
    "dateUpdated": "2026-05-11T22:08:56.620Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CERTFR-2026-AVI-0519

Solutions

CVE-2026-23360 (GCVE-0-2026-23360)

CVE-2026-23414 (GCVE-0-2026-23414)

CVE-2026-27820 (GCVE-0-2026-27820)

CVE-2026-31439 (GCVE-0-2026-31439)

CVE-2026-31441 (GCVE-0-2026-31441)

CVE-2026-31444 (GCVE-0-2026-31444)

CVE-2026-31446 (GCVE-0-2026-31446)

CVE-2026-31447 (GCVE-0-2026-31447)

CVE-2026-31448 (GCVE-0-2026-31448)

CVE-2026-31450 (GCVE-0-2026-31450)

Tags

Sightings

Nomenclature