CVE-2026-72014 - Vulnerability Details

Vendors	Products
Linux	Linux Kernel

Link	Providers
https://git.kernel.org/stable/c/38cc4867540ae8beedfe41a1a1a6ed37052c77d6
https://git.kernel.org/stable/c/5f59a8142000f0b8f75c432209ead73c424a745d
https://git.kernel.org/stable/c/648d4317326e6aa3f8c05cbf0fd14cc2eba6ca99
https://git.kernel.org/stable/c/741a682535deffe9ab7e5c89caf83571efbc9dd9
https://git.kernel.org/stable/c/bca33f5442c3094511719d9db792ce3165d87e76
https://git.kernel.org/stable/c/bd910a7660d280595ef94cb6d193951d855d330f
https://git.kernel.org/stable/c/f14e87d7b166490bceb9603b39310e51595d05b9
https://git.kernel.org/stable/c/f16866c62656865854106b79bcf6e4ca97a51a92

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: drbd: reject data replies with an out-of-range payload size recv_dless_read() receives a P_DATA_REPLY from a peer into the bio of an outstanding read request. The peer-supplied payload length reaches it as the signed int data_size, and two peer-controlled inputs can make it negative. With a negotiated data-integrity-alg the digest length is subtracted first, so a reply whose payload is smaller than the digest underflows data_size. With no integrity algorithm (the default) data_size is assigned from the unsigned h95/h100 wire length and drbdd() never bounds it for a payload-carrying command, so a length above INT_MAX casts it negative; this path needs no non-default feature. The bio receive loop then computes expect = min_t(int, data_size, bv_len), which is negative, and drbd_recv_all_warn(mapped, expect) receives with a size_t of SIZE_MAX into the first mapped page. The sibling receive path read_in_block() is not affected: it uses an unsigned size and rejects it against DRBD_MAX_BIO_SIZE before receiving. Reject a data reply whose size is negative after the optional digest subtraction, covering both triggers. Impact: a malicious or man-in-the-middle DRBD peer copies attacker-chosen bytes past a bio page in the receiver, corrupting kernel memory. A node that reads from its peer (a diskless node, or read-balancing to the peer) is exposed in the default configuration; data-integrity-alg is not required.
Title		drbd: reject data replies with an out-of-range payload size
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/38cc4867540ae8beedfe41a1a1a6ed37052c77d6 https://git.kernel.org/stable/c/5f59a8142000f0b8f75c432209ead73c424a745d https://git.kernel.org/stable/c/648d4317326e6aa3f8c05cbf0fd14cc2eba6ca99 https://git.kernel.org/stable/c/741a682535deffe9ab7e5c89caf83571efbc9dd9 https://git.kernel.org/stable/c/bca33f5442c3094511719d9db792ce3165d87e76 https://git.kernel.org/stable/c/bd910a7660d280595ef94cb6d193951d855d330f https://git.kernel.org/stable/c/f14e87d7b166490bceb9603b39310e51595d05b9 https://git.kernel.org/stable/c/f16866c62656865854106b79bcf6e4ca97a51a92

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72014", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.899Z", "datePublished": "2026-08-15T05:51:42.741Z", "dateUpdated": "2026-08-15T05:51:42.741Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:51:42.741Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrbd: reject data replies with an out-of-range payload size\n\nrecv_dless_read() receives a P_DATA_REPLY from a peer into the bio of an\noutstanding read request. The peer-supplied payload length reaches it as\nthe signed int data_size, and two peer-controlled inputs can make it\nnegative. With a negotiated data-integrity-alg the digest length is\nsubtracted first, so a reply whose payload is smaller than the digest\nunderflows data_size. With no integrity algorithm (the default) data_size\nis assigned from the unsigned h95/h100 wire length and drbdd() never\nbounds it for a payload-carrying command, so a length above INT_MAX casts\nit negative; this path needs no non-default feature. The bio receive loop\nthen computes expect = min_t(int, data_size, bv_len), which is negative,\nand drbd_recv_all_warn(mapped, expect) receives with a size_t of SIZE_MAX\ninto the first mapped page.\n\nThe sibling receive path read_in_block() is not affected: it uses an\nunsigned size and rejects it against DRBD_MAX_BIO_SIZE before receiving.\nReject a data reply whose size is negative after the optional digest\nsubtraction, covering both triggers.\n\nImpact: a malicious or man-in-the-middle DRBD peer copies attacker-chosen\nbytes past a bio page in the receiver, corrupting kernel memory. A node\nthat reads from its peer (a diskless node, or read-balancing to the peer)\nis exposed in the default configuration; data-integrity-alg is not\nrequired."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/block/drbd/drbd_receiver.c"], "versions": [{"version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "lessThan": "bca33f5442c3094511719d9db792ce3165d87e76", "status": "affected", "versionType": "git"}, {"version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "lessThan": "741a682535deffe9ab7e5c89caf83571efbc9dd9", "status": "affected", "versionType": "git"}, {"version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "lessThan": "f14e87d7b166490bceb9603b39310e51595d05b9", "status": "affected", "versionType": "git"}, {"version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "lessThan": "f16866c62656865854106b79bcf6e4ca97a51a92", "status": "affected", "versionType": "git"}, {"version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "lessThan": "5f59a8142000f0b8f75c432209ead73c424a745d", "status": "affected", "versionType": "git"}, {"version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "lessThan": "38cc4867540ae8beedfe41a1a1a6ed37052c77d6", "status": "affected", "versionType": "git"}, {"version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "lessThan": "648d4317326e6aa3f8c05cbf0fd14cc2eba6ca99", "status": "affected", "versionType": "git"}, {"version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "lessThan": "bd910a7660d280595ef94cb6d193951d855d330f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/block/drbd/drbd_receiver.c"], "versions": [{"version": "2.6.33", "status": "affected"}, {"version": "0", "lessThan": "2.6.33", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.33", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.33", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.33", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.33", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.33", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.33", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.33", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.33", "versionEndExcluding": "7.2-rc3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/bca33f5442c3094511719d9db792ce3165d87e76"}, {"url": "https://git.kernel.org/stable/c/741a682535deffe9ab7e5c89caf83571efbc9dd9"}, {"url": "https://git.kernel.org/stable/c/f14e87d7b166490bceb9603b39310e51595d05b9"}, {"url": "https://git.kernel.org/stable/c/f16866c62656865854106b79bcf6e4ca97a51a92"}, {"url": "https://git.kernel.org/stable/c/5f59a8142000f0b8f75c432209ead73c424a745d"}, {"url": "https://git.kernel.org/stable/c/38cc4867540ae8beedfe41a1a1a6ed37052c77d6"}, {"url": "https://git.kernel.org/stable/c/648d4317326e6aa3f8c05cbf0fd14cc2eba6ca99"}, {"url": "https://git.kernel.org/stable/c/bd910a7660d280595ef94cb6d193951d855d330f"}], "title": "drbd: reject data replies with an out-of-range payload size", "x_generator": {"engine": "bippy-1.2.0"}}}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/block/drbd/drbd_receiver.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "bca33f5442c3094511719d9db792ce3165d87e76", "status": "affected", "version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "versionType": "git"}, {"lessThan": "741a682535deffe9ab7e5c89caf83571efbc9dd9", "status": "affected", "version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "versionType": "git"}, {"lessThan": "f14e87d7b166490bceb9603b39310e51595d05b9", "status": "affected", "version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "versionType": "git"}, {"lessThan": "f16866c62656865854106b79bcf6e4ca97a51a92", "status": "affected", "version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "versionType": "git"}, {"lessThan": "5f59a8142000f0b8f75c432209ead73c424a745d", "status": "affected", "version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "versionType": "git"}, {"lessThan": "38cc4867540ae8beedfe41a1a1a6ed37052c77d6", "status": "affected", "version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "versionType": "git"}, {"lessThan": "648d4317326e6aa3f8c05cbf0fd14cc2eba6ca99", "status": "affected", "version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "versionType": "git"}, {"lessThan": "bd910a7660d280595ef94cb6d193951d855d330f", "status": "affected", "version": "b411b3637fa71fce9cf2acf0639009500f5892fe", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/block/drbd/drbd_receiver.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.33"}, {"lessThan": "2.6.33", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.261", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrbd: reject data replies with an out-of-range payload size\n\nrecv_dless_read() receives a P_DATA_REPLY from a peer into the bio of an\noutstanding read request. The peer-supplied payload length reaches it as\nthe signed int data_size, and two peer-controlled inputs can make it\nnegative. With a negotiated data-integrity-alg the digest length is\nsubtracted first, so a reply whose payload is smaller than the digest\nunderflows data_size. With no integrity algorithm (the default) data_size\nis assigned from the unsigned h95/h100 wire length and drbdd() never\nbounds it for a payload-carrying command, so a length above INT_MAX casts\nit negative; this path needs no non-default feature. The bio receive loop\nthen computes expect = min_t(int, data_size, bv_len), which is negative,\nand drbd_recv_all_warn(mapped, expect) receives with a size_t of SIZE_MAX\ninto the first mapped page.\n\nThe sibling receive path read_in_block() is not affected: it uses an\nunsigned size and rejects it against DRBD_MAX_BIO_SIZE before receiving.\nReject a data reply whose size is negative after the optional digest\nsubtraction, covering both triggers.\n\nImpact: a malicious or man-in-the-middle DRBD peer copies attacker-chosen\nbytes past a bio page in the receiver, corrupting kernel memory. A node\nthat reads from its peer (a diskless node, or read-balancing to the peer)\nis exposed in the default configuration; data-integrity-alg is not\nrequired."}], "id": "CVE-2026-72014", "lastModified": "2026-08-15T06:21:00.173", "metrics": {}, "published": "2026-08-15T06:21:00.173", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/38cc4867540ae8beedfe41a1a1a6ed37052c77d6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5f59a8142000f0b8f75c432209ead73c424a745d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/648d4317326e6aa3f8c05cbf0fd14cc2eba6ca99"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/741a682535deffe9ab7e5c89caf83571efbc9dd9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bca33f5442c3094511719d9db792ce3165d87e76"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd910a7660d280595ef94cb6d193951d855d330f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f14e87d7b166490bceb9603b39310e51595d05b9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f16866c62656865854106b79bcf6e4ca97a51a92"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

Metrics

Affected Vendors & Products

Metrics

Affected Vendors & Products

JSON object

JSON object

JSON object

JSON object

JSON object