Answer in brief
CVE-2026-68158 records a Critical severity (CVSS 9.8) vulnerability in libceph: Fix multiplication overflow in decode_new_up_state_weight(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=930c532869774ebf8af9efe9484c597f896a7d46 <05c90e059269f087becfcce23348496085835c29 || >=930c532869774ebf8af9efe9484c597f896a7d46 <143ba49ead77ec483c0326f8aaad8649874e99c4 || >=930c532869774ebf8af9efe9484c597f896a7d46 <1732d89dfcd74f6fde9ce70900d316c4a151c153 || >=930c532869774ebf8af9efe9484c597f896a7d46 <bee4b5b53e7bff0467fd916cc44c9b190733c6bd || >=930c532869774ebf8af9efe9484c597f896a7d46 <98917a499ec7064c14fc56d180a4fd636fc2784c || 1196c36fd53c3b1615eb02f986cb727b1dfc1047 || bbc3aa6b0e6050b2b2e04a08dd4d6423d576b196 || 6b96b2d473701b45df3fea8dd9796b6ec39e6d54 || 7405d73cea0d0e6c541f5c534078feeb46188844 || 8777c9f654637d56f4c4ca54eb1bc7c609b70085 || 6831c98ce0b8a3e88db64aa224372effd0dcc694 || 032951d32c13b7564dfba82758260cb7aa1149d2 || 14877928f10667a5606383885d004f7185f33718 || >=3.10.103 <3.11 || >=3.12.63 <3.13 || >=3.14.75 <3.15 || >=3.16.39 <3.17 || >=3.18.39 <3.19 || >=4.1.30 <4.2 || >=4.4.17 <4.5 || >=4.6.6 <4.7 | 05c90e059269f087becfcce23348496085835c29, 143ba49ead77ec483c0326f8aaad8649874e99c4, 1732d89dfcd74f6fde9ce70900d316c4a151c153, bee4b5b53e7bff0467fd916cc44c9b190733c6bd, 98917a499ec7064c14fc56d180a4fd636fc2784c, 3.11, 3.13, 3.15, 3.17, 3.19, 4.2, 4.5, 4.7 |
| Linux/Linuxgeneric | 4.7 | Not reported |
| Linux/Linuxgeneric | >=930c532869774ebf8af9efe9484c597f896a7d46 <2ceee3b77b83052648c40fef965f836fd7699d26 || >=930c532869774ebf8af9efe9484c597f896a7d46 <e4473751cc37db41f3f7da25d64a23e0c74570f1 || >=930c532869774ebf8af9efe9484c597f896a7d46 <f6961070c326bd158c38fa48756cde2bd78c4aaa || >=930c532869774ebf8af9efe9484c597f896a7d46 <05c90e059269f087becfcce23348496085835c29 || >=930c532869774ebf8af9efe9484c597f896a7d46 <143ba49ead77ec483c0326f8aaad8649874e99c4 || >=930c532869774ebf8af9efe9484c597f896a7d46 <1732d89dfcd74f6fde9ce70900d316c4a151c153 || >=930c532869774ebf8af9efe9484c597f896a7d46 <bee4b5b53e7bff0467fd916cc44c9b190733c6bd || >=930c532869774ebf8af9efe9484c597f896a7d46 <98917a499ec7064c14fc56d180a4fd636fc2784c || 1196c36fd53c3b1615eb02f986cb727b1dfc1047 || bbc3aa6b0e6050b2b2e04a08dd4d6423d576b196 || 6b96b2d473701b45df3fea8dd9796b6ec39e6d54 || 7405d73cea0d0e6c541f5c534078feeb46188844 || 8777c9f654637d56f4c4ca54eb1bc7c609b70085 || 6831c98ce0b8a3e88db64aa224372effd0dcc694 || 032951d32c13b7564dfba82758260cb7aa1149d2 || 14877928f10667a5606383885d004f7185f33718 || >=3.10.103 <3.11 || >=3.12.63 <3.13 || >=3.14.75 <3.15 || >=3.16.39 <3.17 || >=3.18.39 <3.19 || >=4.1.30 <4.2 || >=4.4.17 <4.5 || >=4.6.6 <4.7 | 2ceee3b77b83052648c40fef965f836fd7699d26, e4473751cc37db41f3f7da25d64a23e0c74570f1, f6961070c326bd158c38fa48756cde2bd78c4aaa, 05c90e059269f087becfcce23348496085835c29, 143ba49ead77ec483c0326f8aaad8649874e99c4, 1732d89dfcd74f6fde9ce70900d316c4a151c153, bee4b5b53e7bff0467fd916cc44c9b190733c6bd, 98917a499ec7064c14fc56d180a4fd636fc2784c, 3.11, 3.13, 3.15, 3.17, 3.19, 4.2, 4.5, 4.7 |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
In the Linux kernel, the following vulnerability has been resolved: libceph: Fix multiplication overflow in decode_new_up_state_weight() If a message of type CEPH_MSG_OSD_MAP contains a (maliciously) corrupted osdmap, out-of-bounds memory accesses may occur in decode_new_up_state_weight(). This happens because the bounds check for the new_state part is based on calculating its length depending on a len value read from the incoming message. This calculation may overflow leading to an incorrect bounds check. Subsequently, out-of-bounds reads may occur when decoding this part. This patch switches the multiplication to use check_mul_overflow() to abort processing the osdmap if an overflow occurred. Therefore, osdmaps/messages containing large values for len that result in a multiplication overflow are treated as invalid. [ idryomov: rename new_state_len -> new_state_item_size, formatting ]
Quoted source text, attributed separately from HOL analysis.