CVE-2024-26780

CVE-2024-26780 | Linux kernel (af_unix) — The vulnerability centers on a task hang during purging oob_skb in GC. The root cause is that list_for_each_entry_safe() is not actually safe when a single skb has references from multiple sockets; freeing such an skb can unlink current and next sockets i...

CVE-2024-26780 af_unix: Fix task hung while purging oob_skb in GC.

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix task hung while purging oobskb in GC. syzbot reported a task hung; at the same time, GC was looping infinitely in listforeachentrysafe for OOB skb. 0 syzbot demonstrated that the listforeachentrysafe was not actually...

CVE-2024-26750 af_unix: Drop oob_skb ref before purging queue in GC.

In the Linux kernel, the following vulnerability has been resolved: afunix: Drop oobskb ref before purging queue in GC. syzbot reported another task hung in unixgc. 0 The current while loop assumes that all of the left candidates have oobskb and calling kfreeskboobskb releases the remaining...

CVE-2024-26750 af_unix: Drop oob_skb ref before purging queue in GC.

In the Linux kernel, the following vulnerability has been resolved: afunix: Drop oobskb ref before purging queue in GC. syzbot reported another task hung in unixgc. 0 The current while loop assumes that all of the left candidates have oobskb and calling kfreeskboobskb releases the remaining...

CVE-2024-26750

CVE-2024-26750 affects the Linux kernel. The vulnerability was in af_unix garbage collection: a self-referencing oob_skb/FD scenario could cause __unix_gc() to hang due to a loop that fails to purge inflight sockets. The fix drops the oob_skb reference before purging the queue, allowing __skb_que...

CVE-2024-26750

In the Linux kernel, the following vulnerability has been resolved: afunix: Drop oobskb ref before purging queue in GC. syzbot reported another task hung in unixgc. 0 The current while loop assumes that all of the left candidates have oobskb and calling kfreeskboobskb releases the remaining...

CVE-2024-26780

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix task hung while purging oobskb in GC. syzbot reported a task hung; at the same time, GC was looping infinitely in listforeachentrysafe for OOB skb. 0 syzbot demonstrated that the listforeachentrysafe was not actually...

CVE-2024-26732

In the Linux kernel, the following vulnerability has been resolved: net: implement lockless setsockoptSOPEEKOFF syzbot reported a lockdep violation 1 involving afunix support of SOPEEKOFF. Since SOPEEKOFF is inherently not thread safe it uses a per-socket skpeekoff field, there is really no point...

CVE-2024-26732

In the Linux kernel, the following vulnerability has been resolved: net: implement lockless setsockoptSOPEEKOFF syzbot reported a lockdep violation 1 involving afunix support of SOPEEKOFF. Since SOPEEKOFF is inherently not thread safe it uses a per-socket skpeekoff field, there is really no point...

CVE-2024-26732 net: implement lockless setsockopt(SO_PEEK_OFF)

In the Linux kernel, the following vulnerability has been resolved: net: implement lockless setsockoptSOPEEKOFF syzbot reported a lockdep violation 1 involving afunix support of SOPEEKOFF. Since SOPEEKOFF is inherently not thread safe it uses a per-socket skpeekoff field, there is really no point...

CVE-2024-26732

CVE-2024-26732 affects the Linux kernel where SO_PEEK_OFF for sockets could cause a lockdep violation in af_unix, due to per-socket uio lock usage. The vulnerability arises because SO_PEEK_OFF was previously protected by kernel locks; a patch implemented lockless behavior for setsockopt(SO_PEEK_O...

CVE-2024-26732 net: implement lockless setsockopt(SO_PEEK_OFF)

In the Linux kernel, the following vulnerability has been resolved: net: implement lockless setsockoptSOPEEKOFF syzbot reported a lockdep violation 1 involving afunix support of SOPEEKOFF. Since SOPEEKOFF is inherently not thread safe it uses a per-socket skpeekoff field, there is really no point...

CVE-2024-26676

In the Linux kernel, the following vulnerability has been resolved: afunix: Call kfreeskb for dead unixsk-oobskb in GC. syzbot reported a warning 0 in unixgc with a repro, which creates a socketpair and sends one socket's fd to itself using the peer. socketpairAFUNIX, SOCKSTREAM, 0, 3, 4 = 0...

CVE-2024-26676

In the Linux kernel, the following vulnerability has been resolved: afunix: Call kfreeskb for dead unixsk-oobskb in GC. syzbot reported a warning 0 in unixgc with a repro, which creates a socketpair and sends one socket's fd to itself using the peer. socketpairAFUNIX, SOCKSTREAM, 0, 3, 4 = 0...

CVE-2024-26676 af_unix: Call kfree_skb() for dead unix_(sk)->oob_skb in GC.

In the Linux kernel, the following vulnerability has been resolved: afunix: Call kfreeskb for dead unixsk-oobskb in GC. syzbot reported a warning 0 in unixgc with a repro, which creates a socketpair and sends one socket's fd to itself using the peer. socketpairAFUNIX, SOCKSTREAM, 0, 3, 4 = 0...

CVE-2024-26676

In the Linux kernel, the following vulnerability has been resolved: afunix: Call kfreeskb for dead unixsk-oobskb in GC. syzbot reported a warning 0 in unixgc with a repro, which creates a socketpair and sends one socket's fd to itself using the peer. socketpairAFUNIX, SOCKSTREAM, 0, 3, 4 = 0...

CVE-2024-26676 af_unix: Call kfree_skb() for dead unix_(sk)->oob_skb in GC.

In the Linux kernel, the following vulnerability has been resolved: afunix: Call kfreeskb for dead unixsk-oobskb in GC. syzbot reported a warning 0 in unixgc with a repro, which creates a socketpair and sends one socket's fd to itself using the peer. socketpairAFUNIX, SOCKSTREAM, 0, 3, 4 = 0...

CVE-2024-26676

CVE-2024-26676 concerns the Linux kernel’s af_unix garbage collection. The issue arose when a socketpair self-send creates a self-referential GC candidate cycle that is not untangled due to missing MSG_OOB handling, causing a memory leak. The root cause was exposed after removing io_uring GC dead...

CVE-2024-26676 af_unix: Call kfree_skb() for dead unix_(sk)->oob_skb in GC.

In the Linux kernel, the following vulnerability has been resolved: afunix: Call kfreeskb for dead unixsk-oobskb in GC. syzbot reported a warning 0 in unixgc with a repro, which creates a socketpair and sends one socket's fd to itself using the peer. socketpairAFUNIX, SOCKSTREAM, 0, 3, 4 = 0...

CVE-2024-26676

In the Linux kernel, the following vulnerability has been resolved: afunix: Call kfreeskb for dead unixsk-oobskb in GC. syzbot reported a warning 0 in unixgc with a repro, which creates a socketpair and sends one socket's fd to itself using the peer. socketpairAFUNIX, SOCKSTREAM, 0, 3, 4 = 0...