IBM System Storage DS8000 could allow an attacker to bypass security authentication due to improperly encoding of DSCLI command output to obtain sensitive information or cause a denial of service.

IBM System Storage DS8000 could allow an authenticated user to create a user with privileged user roles due to improper privileged defined with unsafe actions.

In the Linux kernel, the following vulnerability has been resolved:

macvlan: fix possible UAF in macvlanforwardsource()

Add RCU protection on (struct macvlansourceentry)->vlan.

Whenever macvlanhashdelsource() is called, we must clear entry->vlan pointer before RCU grace period starts.

This allows macvlanforwardsource() to skip over entries queued for freeing.

Note that macvlandev are already RCU protected, as they are embedded in a standard netdev (netdevpriv(ndev)).

https: //lore.kernel.org/netdev/695fb1e8.050a0220.1c677c.039f.GAE@google.com/T/#u

In the Linux kernel, the following vulnerability has been resolved:

ipv6: BUG() in pskbexpandhead() as part of calipsoskbuffsetattr()

There exists a kernel oops caused by a BUGON(nhead 0) at net/core/skbuff.c:2232 in pskbexpandhead(). This bug is triggered as part of the calipsoskbuffsetattr() routine when skbcow() is passed headroom INTMAX (i.e. (int)(skbheadroom(skb) + lendelta) 0).

The root cause of the bug is due to an implicit integer cast in skbcow(). The check (headroom skbheadroom(skb)) is meant to ensure that delta = headroom - skbheadroom(skb) is never negative, otherwise we will trigger a BUGON in pskbexpandhead(). However, if headroom INTMAX and delta = -NETSKBPAD, the check passes, delta becomes negative, and pskbexpandhead() is passed a negative value for nhead.

Fix the trigger condition in calipsoskbuffsetattr(). Avoid passing "negative" headroom sizes to skbcow() within calipsoskbuffsetattr() by only using skbcow() to grow headroom.

PoC: Using netlabelctl tool:

netlabelctl map del default netlabelctl calipso add pass doi:7 netlabelctl map add default address:0::1/128 protocol:calipso,7

Then run the following PoC:

int fd = socket(AFINET6, SOCKDGRAM, IPPROTOUDP);

// setup msghdr int cmsgsize = 2; int cmsglen = 0x60; struct msghdr msg; struct sockaddrin6 destaddr; struct cmsghdr cmsg = (struct cmsghdr ) calloc(1, sizeof(struct cmsghdr) + cmsglen); msg.msgname = &destaddr; msg.msgnamelen = sizeof(destaddr); msg.msgiov = NULL; msg.msgiovlen = 0; msg.msgcontrol = cmsg; msg.msgcontrollen = cmsglen; msg.msgflags = 0;

// setup sockaddr destaddr.sin6family = AFINET6; destaddr.sin6port = htons(31337); destaddr.sin6flowinfo = htonl(31337); destaddr.sin6addr = in6addrloopback; destaddr.sin6scopeid = 31337;

// setup cmsghdr cmsg-cmsglen = cmsglen; cmsg-cmsglevel = IPPROTOIPV6; cmsg-cmsgtype = IPV6HOPOPTS; char hophdr = (char )cmsg + sizeof(struct cmsghdr); hophdr[1] = 0x9; //set hop size - (0x9 + 1) 8 = 80

sendmsg(fd, &msg, 0);

In the Linux kernel, the following vulnerability has been resolved:

tcp: fix a signed-integer-overflow bug in tcpaddbacklog()

The type of skrcvbuf and sksndbuf in struct sock is int, and in tcpaddbacklog(), the variable limit is caculated by adding skrcvbuf, sksndbuf and 64 1024, it may exceed the max value of int and overflow. This patch reduces the limit budget by halving the sndbuf to solve this issue since ACK packets are much smaller than the payload.

IBM DS8A00( R10.1) 10.10.106.0 and IBM DS8A00 ( R10.0) 10.1.3.010.2.45.0 and IBM DS8900F ( R9.4) 89.40.83.089.42.18.089.44.5.0 IBM System Storage DS8000 could allow a local user with authorized CCW update permissions to delete or corrupt backups due to missing authorization in IBM Safeguarded Copy / GDPS Logical corruption protection mechanisms.

fbdev: bitblit: bound-check glyph index in bitputcs

In the Linux kernel, the following vulnerability has been resolved:

fs/proc: fix uaf in procreaddirde()

Pde is erased from subdir rbtree through rberase(), but not set the node to EMPTY, which may result in uaf access. We should use RBCLEARNODE() set the erased node to EMPTY, then pdesubdirnext() will return NULL to avoid uaf access.

We found an uaf issue while using stress-ng testing, need to run testcase getdent and tun in the same time. The steps of the issue is as follows:

1) use getdent to traverse dir /proc/pid/net/devsnmp6/, and current pde is tun3;

2) in the [time windows] unregister netdevice tun3 and tun2, and erase them from rbtree. erase tun3 first, and then erase tun2. the pde(tun2) will be released to slab;

3) continue to getdent process, then pdesubdirnext() will return pde(tun2) which is released, it will case uaf access.

CPU 0 | CPU 1 ------------------------------------------------------------------------- traverse dir /proc/pid/net/devsnmp6/ | unregisternetdevice(tun->dev) //tun3 tun2 sysgetdents64() | iteratedir() | procreaddir() | procreaddirde() | snmp6unregisterdev() pdeget(de); | procremove() readunlock(&procsubdirlock); | removeprocsubtree() | writelock(&procsubdirlock); [time window] | rberase(&root->subdirnode, &parent->subdir); | writeunlock(&procsubdirlock); readlock(&procsubdirlock); | next = pdesubdirnext(de); | pdeput(de); | de = next; //UAF |

rbtree of devsnmp6 | pde(tun3) / \ NULL pde(tun2)

802.1X. An authentication issue was addressed with improved state management.

802.1X. An authentication issue was addressed with improved state management.

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in pngimagereadcomposite when processing palette images with PNGFLAGOPTIMIZEALPHA enabled. The palette compositing code in pnginitreadtransformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.

Libpng has been updated to version 1.6.51, which contains fixes for security vulnerabilities including CVE-2025-65018 and CVE-2025-64720.

A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a programming error where the gettext command remains registered in memory after its module is unloaded. An attacker can exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.

An unspecified vulnerability in Java SE related to the JAXP component could allow a remote attacker to cause high confidentiality impact, no integrity impact, and no availability impact.

In the Linux kernel, the following vulnerability has been resolved:

tcp: Clear tcpsk(sk)->fastopenrsk in tcpdisconnect().

syzbot reported the splat below where a socket had tcpsk(sk)->fastopenrsk in the TCPESTABLISHED state. [0]

syzbot reused the server-side TCP Fast Open socket as a new client before the TFO socket completes 3WHS:

1. accept() 2. connect(AFUNSPEC) 3. connect() to another destination

As of accept(), sk->skstate is TCPSYNRECV, and tcpdisconnect() changes it to TCPCLOSE and makes connect() possible, which restarts timers.

Since tcpdisconnect() forgot to clear tcpsk(sk)->fastopenrsk, the retransmit timer triggered the warning and the intended packet was not retransmitted.

Let's call reqskfastopenremove() in tcpdisconnect().

[0]: WARNING: CPU: 2 PID: 0 at net/ipv4/tcptimer.c:542 tcpretransmittimer (net/ipv4/tcptimer.c:542 (discriminator 7)) Modules linked in: CPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 6.17.0-rc5-g201825fb4278 #62 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:tcpretransmittimer (net/ipv4/tcptimer.c:542 (discriminator 7)) Code: 41 55 41 54 55 53 48 8b af b8 08 00 00 48 89 fb 48 85 ed 0f 84 55 01 00 00 0f b6 47 12 3c 03 74 0c 0f b6 47 12 3c 04 74 04 90 <0f> 0b 90 48 8b 85 c0 00 00 00 48 89 ef 48 8b 40 30 e8 6a 4f 06 3e RSP: 0018:ffffc900002f8d40 EFLAGS: 00010293 RAX: 0000000000000002 RBX: ffff888106911400 RCX: 0000000000000017 RDX: 0000000002517619 RSI: ffffffff83764080 RDI: ffff888106911400 RBP: ffff888106d5c000 R08: 0000000000000001 R09: ffffc900002f8de8 R10: 00000000000000c2 R11: ffffc900002f8ff8 R12: ffff888106911540 R13: ffff888106911480 R14: ffff888106911840 R15: ffffc900002f8de0 FS: 0000000000000000(0000) GS:ffff88907b768000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8044d69d90 CR3: 0000000002c30003 CR4: 0000000000370ef0 Call Trace: <IRQ> tcpwritetimer (net/ipv4/tcptimer.c:738) calltimerfn (kernel/time/timer.c:1747) runtimers (kernel/time/timer.c:1799 kernel/time/timer.c:2372) timerexpireremote (kernel/time/timer.c:2385 kernel/time/timer.c:2376 kernel/time/timer.c:2135) tmigrhandleremoteup (kernel/time/timermigration.c:944 kernel/time/timermigration.c:1035) walkgroups.isra.0 (kernel/time/timermigration.c:533 (discriminator 1)) tmigrhandleremote (kernel/time/timermigration.c:1096) handlesoftirqs (./arch/x86/include/asm/jumplabel.h:36 ./include/trace/events/irq.h:142 kernel/softirq.c:580) irqexitrcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680 kernel/softirq.c:696) sysvecapictimerinterrupt (arch/x86/kernel/apic/apic.c:1050 (discriminator 35) arch/x86/kernel/apic/apic.c:1050 (discriminator 35)) </IRQ>

In the Linux kernel, the following vulnerability has been resolved:

mm/memory-failure: fix VMBUGONPAGE(PagePoisoned(page)) when unpoison memory

When I did memory failure tests, below panic occurs:

page dumped because: VMBUGONPAGE(PagePoisoned(page)) kernel BUG at include/linux/page-flags.h:616! Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 720 Comm: bash Not tainted 6.10.0-rc1-00195-g148743902568 #40 RIP: 0010:unpoisonmemory+0x2f3/0x590 RSP: 0018:ffffa57fc8787d60 EFLAGS: 00000246 RAX: 0000000000000037 RBX: 0000000000000009 RCX: ffff9be25fcdc9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff9be25fcdc9c0 RBP: 0000000000300000 R08: ffffffffb4956f88 R09: 0000000000009ffb R10: 0000000000000284 R11: ffffffffb4926fa0 R12: ffffe6b00c000000 R13: ffff9bdb453dfd00 R14: 0000000000000000 R15: fffffffffffffffe FS: 00007f08f04e4740(0000) GS:ffff9be25fcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564787a30410 CR3: 000000010d4e2000 CR4: 00000000000006f0 Call Trace: <TASK> unpoisonmemory+0x2f3/0x590 simpleattrwritexsigned.constprop.0.isra.0+0xb3/0x110 debugfsattrwrite+0x42/0x60 fullproxywrite+0x5b/0x80 vfswrite+0xd5/0x540 ksyswrite+0x64/0xe0 dosyscall64+0xb9/0x1d0 entrySYSCALL64afterhwframe+0x77/0x7f RIP: 0033:0x7f08f0314887 RSP: 002b:00007ffece710078 EFLAGS: 00000246 ORIGRAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00007f08f0314887 RDX: 0000000000000009 RSI: 0000564787a30410 RDI: 0000000000000001 RBP: 0000564787a30410 R08: 000000000000fefe R09: 000000007fffffff R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000009 R13: 00007f08f041b780 R14: 00007f08f0417600 R15: 00007f08f0416a00 </TASK> Modules linked in: hwpoisoninject ---[ end trace 0000000000000000 ]--- RIP: 0010:unpoisonmemory+0x2f3/0x590 RSP: 0018:ffffa57fc8787d60 EFLAGS: 00000246 RAX: 0000000000000037 RBX: 0000000000000009 RCX: ffff9be25fcdc9c8 RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff9be25fcdc9c0 RBP: 0000000000300000 R08: ffffffffb4956f88 R09: 0000000000009ffb R10: 0000000000000284 R11: ffffffffb4926fa0 R12: ffffe6b00c000000 R13: ffff9bdb453dfd00 R14: 0000000000000000 R15: fffffffffffffffe FS: 00007f08f04e4740(0000) GS:ffff9be25fcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564787a30410 CR3: 000000010d4e2000 CR4: 00000000000006f0 Kernel panic - not syncing: Fatal exception Kernel Offset: 0x31c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) ---[ end Kernel panic - not syncing: Fatal exception ]---

The root cause is that unpoisonmemory() tries to check the PGHWPoison flags of an uninitialized page. So VMBUGONPAGE(PagePoisoned(page)) is triggered. This can be reproduced by below steps:

1.Offline memory block:

echo offline > /sys/devices/system/memory/memory12/state

2.Get offlined memory pfn:

page-types -b n -rlN

3.Write pfn to unpoison-pfn

echo <pfn> > /sys/kernel/debug/hwpoison/unpoison-pfn

This scenario can be identified by pfntoonlinepage() returning NULL. And ZONEDEVICE pages are never expected, so we can simply fail if pfntoonlinepage() == NULL to fix the bug.

Issue summary: An application trying to decrypt CMS messages encrypted using password based encryption can trigger an out-of-bounds read and write.

Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service for an application. The out-of-bounds write can cause a memory corruption which can have various consequences including a Denial of Service or Execution of attacker-supplied code.

Although the consequences of a successful exploit of this vulnerability could be severe, the probability that the attacker would be able to perform it is low. Besides, password based (PWRI) encryption support in CMS messages is very rarely used. For that reason the issue was assessed as Moderate severity according to our Security Policy.

The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary.

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix race with concurrent opens in rename(2)

Besides sending the rename request to the server, the rename process also involves closing any deferred close, waiting for outstanding I/O to complete as well as marking all existing open handles as deleted to prevent them from deferring closes, which increases the race window for potential concurrent opens on the target file.

Fix this by unhashing the dentry in advance to prevent any concurrent opens on the target.

In the Linux kernel, the following vulnerability has been resolved:

usb: core: config: Prevent OOB read in SS endpoint companion parsing

usbparsessendpointcompanion() checks descriptor type before length, enabling a potentially odd read outside of the buffer size.

Fix this up by checking the size first before looking at any of the fields in the descriptor.

A flaw was found in linux-pam. The pamnamespace module may improperly handle user-controlled paths, allowing local users to exploit symlink attacks and race conditions to elevate their privileges to root. This CVE provides a "complete" fix for CVE-2025-6020.

atm: clip: Fix infinite recursive call of clippush().

In the Linux kernel, the following vulnerability has been resolved:

Squashfs: check return result of sbminblocksize

Syzkaller reports an "UBSAN: shift-out-of-bounds in squashfsbioread" bug.

Syzkaller forks multiple processes which after mounting the Squashfs filesystem, issues an ioctl("/dev/loop0", LOOPSETBLOCKSIZE, 0x8000). Now if this ioctl occurs at the same time another process is in the process of mounting a Squashfs filesystem on /dev/loop0, the failure occurs. When this happens the following code in squashfsfillsuper() fails.

---- msblk->devblksize = sbminblocksize(sb, SQUASHFSDEVBLKSIZE); msblk->devblksizelog2 = ffz(~msblk->devblksize); ----

sbminblocksize() returns 0, which means msblk->devblksize is set to 0.

As a result, ffz(~msblk->devblksize) returns 64, and msblk->devblksizelog2 is set to 64.

This subsequently causes the

UBSAN: shift-out-of-bounds in fs/squashfs/block.c:195:36 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long')

This commit adds a check for a 0 return by sbminblocksize().

Admin Framework. A logic issue was addressed with improved checks.

In some modssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade.

In certain proxy configurations, a denial of service attack against Apache HTTP Server versions 2.4.26 through to 2.4.63 can be triggered by untrusted clients causing an assertion in modproxyhttp2.

Configurations affected are a reverse proxy is configured for an HTTP/2 backend, with ProxyPreserveHost set to "on".

Insufficient escaping of user-supplied data in modssl in Apache HTTP Server 2.4.63 and earlier allows an untrusted SSL/TLS client to insert escape characters into log files in some configurations.

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rxe: Fix slab-use-after-free Read in rxequeuecleanup bug

Call Trace: <TASK> dumpstack lib/dumpstack.c:94 [inline] dumpstacklvl+0x7d/0xa0 lib/dumpstack.c:120 printaddressdescription mm/kasan/report.c:378 [inline] printreport+0xcf/0x610 mm/kasan/report.c:489 kasanreport+0xb5/0xe0 mm/kasan/report.c:602 rxequeuecleanup+0xd0/0xe0 drivers/infiniband/sw/rxe/rxequeue.c:195 rxecqcleanup+0x3f/0x50 drivers/infiniband/sw/rxe/rxecq.c:132 rxecleanup+0x168/0x300 drivers/infiniband/sw/rxe/rxepool.c:232 rxecreatecq+0x22e/0x3a0 drivers/infiniband/sw/rxe/rxeverbs.c:1109 createcq+0x658/0xb90 drivers/infiniband/core/uverbscmd.c:1052 ibuverbscreatecq+0xc7/0x120 drivers/infiniband/core/uverbscmd.c:1095 ibuverbswrite+0x969/0xc90 drivers/infiniband/core/uverbsmain.c:679 vfswrite fs/readwrite.c:677 [inline] vfswrite+0x26a/0xcc0 fs/readwrite.c:659 ksyswrite+0x1b8/0x200 fs/readwrite.c:731 dosyscallx64 arch/x86/entry/common.c:52 [inline] dosyscall64+0xaa/0x1b0 arch/x86/entry/common.c:83 entrySYSCALL64afterhwframe+0x77/0x7f

In the function rxecreatecq, when rxecqfrominit fails, the function rxecleanup will be called to handle the allocated resources. In fact, some memory resources have already been freed in the function rxecqfrominit. Thus, this problem will occur.

The solution is to let rxecleanup do all the work.

In the Linux kernel, the following vulnerability has been resolved:

RDMA/core: Fix "KASAN: slab-use-after-free Read in ibregisterdevice" problem

Call Trace:

dumpstack lib/dumpstack.c:94 [inline] dumpstacklvl+0x116/0x1f0 lib/dumpstack.c:120 printaddressdescription mm/kasan/report.c:408 [inline] printreport+0xc3/0x670 mm/kasan/report.c:521 kasanreport+0xe0/0x110 mm/kasan/report.c:634 strlen+0x93/0xa0 lib/string.c:420 fortifystrlen include/linux/fortify-string.h:268 [inline] getkobjpathlength lib/kobject.c:118 [inline] kobjectgetpath+0x3f/0x2a0 lib/kobject.c:158 kobjectueventenv+0x289/0x1870 lib/kobjectuevent.c:545 ibregisterdevice drivers/infiniband/core/device.c:1472 [inline] ibregisterdevice+0x8cf/0xe00 drivers/infiniband/core/device.c:1393 rxeregisterdevice+0x275/0x320 drivers/infiniband/sw/rxe/rxeverbs.c:1552 rxenetadd+0x8e/0xe0 drivers/infiniband/sw/rxe/rxenet.c:550 rxenewlink+0x70/0x190 drivers/infiniband/sw/rxe/rxe.c:225 nldevnewlink+0x3a3/0x680 drivers/infiniband/core/nldev.c:1796 rdmanlrcvmsg+0x387/0x6e0 drivers/infiniband/core/netlink.c:195 rdmanlrcvskb.constprop.0.isra.0+0x2e5/0x450 netlinkunicastkernel net/netlink/afnetlink.c:1313 [inline] netlinkunicast+0x53a/0x7f0 net/netlink/afnetlink.c:1339 netlinksendmsg+0x8d1/0xdd0 net/netlink/afnetlink.c:1883 socksendmsgnosec net/socket.c:712 [inline] socksendmsg net/socket.c:727 [inline] syssendmsg+0xa95/0xc70 net/socket.c:2566 syssendmsg+0x134/0x1d0 net/socket.c:2620 syssendmsg+0x16d/0x220 net/socket.c:2652 dosyscallx64 arch/x86/entry/syscall64.c:63 [inline] dosyscall64+0xcd/0x260 arch/x86/entry/syscall64.c:94 entrySYSCALL64afterhwframe+0x77/0x7f

This problem is similar to the problem that the commit 1d6a9e7449e2 ("RDMA/core: Fix use-after-free when rename device name") fixes.

The root cause is: the function ibdevicerename() renames the name with lock. But in the function kobjectuevent(), this name is accessed without lock protection at the same time.

The solution is to add the lock protection when this name is accessed in the function kobjectuevent().

A flaw was found in linux-pam. The module pamnamespace may use access user-controlled paths without proper protection, allowing local users to elevate their privileges to root via multiple symlink attacks and race conditions.

A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.