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[cbr79] Many VULNs 9-26-25 #595

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Merged
merged 4 commits into from
Sep 29, 2025
Merged

[cbr79] Many VULNs 9-26-25 #595

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1aace11
misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram()
bmastbergen Sep 26, 2025
55658bb
ext4: fix off-by-one error in do_split
bmastbergen Sep 26, 2025
4db51fa
sch_hfsc: make hfsc_qlen_notify() idempotent
bmastbergen Sep 26, 2025
f74987c
scsi: lpfc: Use memcpy() for BIOS version
bmastbergen Sep 26, 2025
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2 changes: 2 additions & 0 deletions drivers/misc/vmw_vmci/vmci_queue_pair.c
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Original file line number Diff line number Diff line change
Expand Up @@ -938,6 +938,7 @@ static int qp_notify_peer_local(bool attach, struct vmci_handle handle)
u32 context_id = vmci_get_context_id();
struct vmci_event_qp ev;

memset(&ev, 0, sizeof(ev));
ev.msg.hdr.dst = vmci_make_handle(context_id, VMCI_EVENT_HANDLER);
ev.msg.hdr.src = vmci_make_handle(VMCI_HYPERVISOR_CONTEXT_ID,
VMCI_CONTEXT_RESOURCE_ID);
Expand Down Expand Up @@ -1549,6 +1550,7 @@ static int qp_notify_peer(bool attach,
* kernel.
*/

memset(&ev, 0, sizeof(ev));
ev.msg.hdr.dst = vmci_make_handle(peer_id, VMCI_EVENT_HANDLER);
ev.msg.hdr.src = vmci_make_handle(VMCI_HYPERVISOR_CONTEXT_ID,
VMCI_CONTEXT_RESOURCE_ID);
Expand Down
4 changes: 2 additions & 2 deletions drivers/scsi/lpfc/lpfc_sli.c
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Expand Up @@ -5441,9 +5441,9 @@ lpfc_sli4_get_ctl_attr(struct lpfc_hba *phba)
phba->sli4_hba.lnk_info.lnk_no =
bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);

memset(phba->BIOSVersion, 0, sizeof(phba->BIOSVersion));
strlcat(phba->BIOSVersion, (char *)cntl_attr->bios_ver_str,
memcpy(phba->BIOSVersion, cntl_attr->bios_ver_str,
sizeof(phba->BIOSVersion));
phba->BIOSVersion[sizeof(phba->BIOSVersion) - 1] = '\0';

lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
"3086 lnk_type:%d, lnk_numb:%d, bios_ver:%s\n",
Expand Down
2 changes: 1 addition & 1 deletion fs/ext4/namei.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1593,7 +1593,7 @@ static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
* split it in half by count; each resulting block will have at least
* half the space free.
*/
if (i > 0)
if (i >= 0)
split = count - move;
else
split = count/2;
Expand Down
8 changes: 6 additions & 2 deletions net/sched/sch_hfsc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -204,7 +204,10 @@ eltree_insert(struct hfsc_class *cl)
static inline void
eltree_remove(struct hfsc_class *cl)
{
rb_erase(&cl->el_node, &cl->sched->eligible);
if (!RB_EMPTY_NODE(&cl->el_node)) {
rb_erase(&cl->el_node, &cl->sched->eligible);
RB_CLEAR_NODE(&cl->el_node);
}
}

static inline void
Expand Down Expand Up @@ -1225,7 +1228,8 @@ hfsc_qlen_notify(struct Qdisc *sch, unsigned long arg)
/* vttree is now handled in update_vf() so that update_vf(cl, 0, 0)
* needs to be called explicitly to remove a class from vttree.
*/
update_vf(cl, 0, 0);
if (cl->cl_nactive)
update_vf(cl, 0, 0);
if (cl->cl_flags & HFSC_RSC)
eltree_remove(cl);
}
Expand Down